Underground space resources are important for the purposes of urban sustainable development and are a significant means by which to realize three-dimensional urban development.A reasonable and scientific evaluation of...Underground space resources are important for the purposes of urban sustainable development and are a significant means by which to realize three-dimensional urban development.A reasonable and scientific evaluation of underground space resources is the foundation for the rational use of land resources and urban planning.On the basis of the geological conditions used by preceding researchers,this study adds the analysis of two influencing factors of social and economic value,alongside existing facilities and protection needs.The evaluation index is quantified and the comprehensive quality evaluation system of underground space resources is constructed.Finally,taking the Nanshan District of Shenzhen as an example,the evaluation of underground space resources is carried out.The results show that for shallow underground space,the comprehensive quality of underground space resources development in Nanshan District is generally high.Nantou,Nanshan and Yuehai streets are recommended as areas to actively develop underground space,whereas the Qianhai and Houhai areas are recommended to be used with caution in the development and construction of their underground space.In addition,this study also provides a reference for the purposes of underground space planning in the Nanshan district of Shenzhen.展开更多
Taking the sociopetal space with high using rate and welcomed by visitors in Jingxiu Park of Baoding as the study object,human demands on spatial characteristics and space factors were evaluated by the method of POE,a...Taking the sociopetal space with high using rate and welcomed by visitors in Jingxiu Park of Baoding as the study object,human demands on spatial characteristics and space factors were evaluated by the method of POE,and modification measures of the sociopetal space in city opening park were put forward,which provided evidence for solving regional problems of city park and creating urban open space.展开更多
A rational utilization of land is a matter of importance in sustainable development of mountainous area.The land function in mountainous areas has a close connection with space structure of ecology,production and livi...A rational utilization of land is a matter of importance in sustainable development of mountainous area.The land function in mountainous areas has a close connection with space structure of ecology,production and living.To promote a harmonious development of the relationship between people and nature in mountainous areas,it is necessary to coordinate their relationships of space functions.Suitability evaluation of basic unit function associated with multi-scale space analysis is a prerequisite to a reasonable optimization of land function structure.In this study,an optimized evaluation index system of combination functions was introduced into the assessment of ecological spatial functional suitability in ecological fragile regions by adding three indicators,namely,soil erosion sensitivity,landscape ecological risk and ecological sensitivity.The principle of"taking high"(referred to a function with high suitability to be regarded as the main function of an evaluation unit)and ecological priority(referred to the case,supposing the suitability of a unit’s three functions is consistent,the main function is determined to be the ecological function)were used to determine the main function of an evaluation unit.Pingshan County,China,located at the eastern foot of the Taihang Mountain,was targeted in this case study.The production-livingecology space(PLES)function in Pingshan was identified by applying our improved valuation indexes.Further,the functional suitability distribution of the combination of elements was obtained by using overlapping comprehensive analysis method,considering the tradeoff of the functional suitability of combination elements.The regions suitable for production/living were distributed in relatively flat piedmont plains,whereas the regions suitable for ecology were distributed in the mountain areas of middle and low altitudes.Therefore,to maintain a sustainable development in mountainous areas,an improved scheme of development for Pingshan should be to delineate ecologically fragile areas,to build ecological industrial parks near existing scenic spots,to protect basic agricultural production areas,and to increase investment in science and technology,including reasonable ecological compensation.This study can provide reference for the planning of sustainable development in the Taihang Mountain area and similar regions.展开更多
The importance of ecological benefit analyses about green space systems has been widely discussed on the basis of a perceived bias towards the landscaping effect of green spaces to be built in urban areas as opposed t...The importance of ecological benefit analyses about green space systems has been widely discussed on the basis of a perceived bias towards the landscaping effect of green spaces to be built in urban areas as opposed to the perception of comprehensive ecological benefits of designed plant communities. Given the basic principle of ecological benefit analyses and evaluation methods widely applied today, the methodology to calculate ecological benefits and to model the expansion of urban green spaces by CITY- green 5.0 and its conditions for application were explored. We propose that aerial images can be substituted by AutoCAD graphics of a green space containing detailed information of plant dispositions by digitizing the key features during the working process in order to evaluate the ecological benefits quickly and to offer proper guidance to the establishment of small scale green spaces in urban areas. The theoretical foundation, potential application range and prospects for extension of the method are introduced by using the analysis of ecological benefits of the green spaces on the campus of Southwest Forestry College, Kunming, as an example.展开更多
In order to improve the safety of the battery of satellite side mounting,and prevent the screw from producing excess due to frequent assembly and disassembly,the YS-20 material replacement and structure optimization d...In order to improve the safety of the battery of satellite side mounting,and prevent the screw from producing excess due to frequent assembly and disassembly,the YS-20 material replacement and structure optimization design of the screw body are carried out under the premise of not changing the original tooling.The double⁃shear test of YS-20 bar is carried out,and the ANSYS optimization design module is used to design 7×7×6,a total of 294,calculation cases of D1,D2,T,the three important dimension parameters of screw structure.The actual bearing state of screw composite structure is accurately simulated by using asymmetric contact model.Three comprehensive evaluations are established,and the calculation examples satisfying the conditions are evaluated comprehensively.The final results are T=12.2 mm,D1=16 mm,D2=2 mm.The stress verification and contact analysis are carried out for the final scheme and the bearing state and contact state optimized screw structure are obtained.展开更多
Urban planning often faces issues of spatial separation between blue and green spaces,as well as the lack of integration in slow traffic networks.The development and shaping of urban slow,blue,and green spaces often p...Urban planning often faces issues of spatial separation between blue and green spaces,as well as the lack of integration in slow traffic networks.The development and shaping of urban slow,blue,and green spaces often proceed along separate paths.However,building an ecological and livable city requires the integrated development of slow,blue,and green spaces.Taking the central urban area of Wuhan as a case study,this research uses ArcGIS visualization,walking accessibility analysis,and landscape pattern index analysis methods.By overlapping slow traffic spaces with blue and green spaces,the study explores the distribution of slow,blue,and green spaces and the integration characteristics of slow+blue-green spaces,categorizing them based on walking time and spatial aggregation.The results show:1)In the central urban area of Wuhan,blue spaces are predominant in the Yangtze River basin,the Han River-Sha Lake-East Lake-South Lake,Yangchun Lake-East Lake-South Lake-Yezhi Lake,and Longyang Lake-Moshui Lake directions,with clear dominant patches,while other areas show average performance;2)Green spaces have good patch dominance and connectivity along the Qingshan Park-East Lake Greenway-Moshan-Ma anshan Forest Park;3)The integration of blue and green spaces is best along the Yangtze River,East Lake,and South Lake;4)Areas such as Sha Lake Park in Wuchang District,East Lake Scenic Area in Hongshan District,the South Lake-Yezhi Lake corridor,Moshui Lake and Longyang Lake in Hanyang District,and the northern and southern parts of the Yangtze River are characterized by better integration of slow blue-green spaces.Through the overlay analysis of walking accessibility and landscape pattern indices of blue-green spaces,the study significantly reflects the integration characteristics of slow blue-green spaces in Wuhan s central urban area.This research aims to provide references for the planning and design of urban slow blue-green spaces and the construction of livable and ecological cities,offering practical guidance for creating a healthy urban ecological living environment and for urban ecosystem restoration and management.展开更多
The exploitation and utilization of the city underground space resource is the important approach of building tri-dimensional and ecological cities, solving the environment,resource,and population crisis and continuin...The exploitation and utilization of the city underground space resource is the important approach of building tri-dimensional and ecological cities, solving the environment,resource,and population crisis and continuing cities development.This article, based on the introduction in detail the overview of regional geology,hydrogeologic condition,engineering geology,environmental geology,etc.in center city of Tianjin,establishes evaluating model of urban underground space resource based on GIS展开更多
By reviewing the theories and methods of resource and environmental carrying capacity evaluation and suitability evaluation of land and space development,it provides theoretical and technical support for rational layo...By reviewing the theories and methods of resource and environmental carrying capacity evaluation and suitability evaluation of land and space development,it provides theoretical and technical support for rational layout and optimization of land and space development pattern.From the aspects of resource carrying capacity,environmental carrying capacity,the importance of ecological protection,the suitability of agricultural production,and the suitability of urban construction,we sort out domestic and foreign documents.The evaluation of resource carrying capacity has changed from single-factor evaluation to multi-factor comprehensive evaluation.At present,the optimization of land use pattern based on the“three-generation”space is still under exploration,it is not enough to systematize and summarize the thought of optimizing the spatial pattern of the national territory.The theoretical framework,model,method and index of“dual evaluation”of territorial space need to be improved continuously,it also needs the scientific analysis and cognition from the natural direction to the human location direction and the spatial equilibrium state as the new driving force.展开更多
Recently,underground space evaluation has become fundamental for a city’s long term sustainable development planning.This paper,based on the 3D-GIS tools,adopts"multi-factors comprehensive evaluation"models...Recently,underground space evaluation has become fundamental for a city’s long term sustainable development planning.This paper,based on the 3D-GIS tools,adopts"multi-factors comprehensive evaluation"models to establish a practicable underground space resources quantitative evaluation system.It sets up展开更多
This methodological investigation deals with measurement and valuation of ecological service functions for urban green space. Social, economic and ecological dimensions for such types of function were analyzed and a ...This methodological investigation deals with measurement and valuation of ecological service functions for urban green space. Social, economic and ecological dimensions for such types of function were analyzed and a concept “integrated ecological service functions” (IESF) was put forward for evaluation. Based upon this conceptual approach, an index system for measuring IESF for urban green space was established. With a methodological integration of fuzzy mathematics, decision making analysis and Delphi method, an AHP fuzzy evaluation techniques for IESF for urban green space, called AFIFUG method, was developed. Such a method has been directly applied to the land use strategic planning of Tianjin out ring green belt(TOGB), and its analysis results have been successfully put into operation.展开更多
[Objective] The paper was to understand the physiological response of space flight mutation new strains of Festuca arundinacea to high temperature stress. [Method] The influence of high temperature stress on eco-physi...[Objective] The paper was to understand the physiological response of space flight mutation new strains of Festuca arundinacea to high temperature stress. [Method] The influence of high temperature stress on eco-physiological characteristics of 11 F. arundinacea materials was studied in a pot experiment.Physiological and biochemical indexes,including soluble protein content,superoxide dismutase( SOD),peroxidase( POD) and catalase( CAT) activities,were measured and analyzed once every 4 d for a total of three times. Subordinate function and grey rational analysis were used to comprehensively evaluate the heat resistance of 11 materials. [Result] The soluble protein content decreased with the extension of heat resistance stress,while SOD,POD and CAT activities showed an upward trend. The high temperature resistance of 11 F. arundinacea materials was evaluated by subordinate function method. The resistance order was SP5-85> SP5-60 > SP5-71 > SP5-42 > SP5-94 > SP5-7 > SP5-88 > F. arundinacea cv Shuicheng > SP5-5 > SP5-89 = F. arundinacea cv Qiancao No. 1. The relational order of various heat resistance indexes and heat resistance obtained by grey rational analysis was SOD > CAT > POD > soluble protein content. [Conclusion]The result provides a theoretical basis for stress physiology and stress breeding of cold season grass in southwest region.展开更多
The overall structure of live pig supply chain was constructed based on theoretical study and practical investigation, and the performance evaluation sys- tem for supply chain was studied from two perspectives of time...The overall structure of live pig supply chain was constructed based on theoretical study and practical investigation, and the performance evaluation sys- tem for supply chain was studied from two perspectives of time and space and balanced score card （BSC）. From the space perspective and BSC, the performance evaluation system composed of four primary indicators （financial dimension, customer dimension, internal business dimension and innovation/learning perspective） and 26 secondary indicators. From the time perspective and BSC, the system could be divided into four stages, including formation stage, development stage, matu- rity stage and recession stage, with a total of 30 indicators.展开更多
Wuhua District and Panlong District are two major downtown areas of Kuming City,recent construction and renovation of public green spaces in both districts have achieved considerable fruits.Through sampling major publ...Wuhua District and Panlong District are two major downtown areas of Kuming City,recent construction and renovation of public green spaces in both districts have achieved considerable fruits.Through sampling major public green spaces in the study districts,plant landscapes were analyzed and compared on the basis of plant landscape evaluation system,principal characteristics of plant landscaping patterns in public green spaces of Kunming City and problems in the construction of public green spaces in both districts were summarized,so as to provide references for the landscape construction of public green spaces in Kunming City.展开更多
Researchers' understandings of economic, ecological and social benefits of urban green spaces were discussed from many perspectives, connotations of such three major benefits were redefined, existing problems in t...Researchers' understandings of economic, ecological and social benefits of urban green spaces were discussed from many perspectives, connotations of such three major benefits were redefined, existing problems in the present evaluation were analyzed. According to service objects of urban green spaces, 6 relationship fields were classified, specifically, global ecology, regional environment, regional health, basic life, spiritual life and material life, a basic framework for evaluating economic, ecological and social benefits of urban green spaces was proposed.展开更多
The quality dimension of the urban living space was addressed much earlier abroad; nevertheless, it has not been studied in the Chinese academia up to date, as evidenced by the limited research literature. Through rec...The quality dimension of the urban living space was addressed much earlier abroad; nevertheless, it has not been studied in the Chinese academia up to date, as evidenced by the limited research literature. Through recourse to Rich BOYER′s nine-factor theory, this study attempted to evaluate and rank 31 target cities, by using the data from the China Statistical Yearbook 2002. Our research results show that the quality of a city′s living space is in positive correlation with its size, and that there will be changing demands for the quality of the urban living space as a result of future social, economic, sci-tech, cultural and educational developments, combined with the improvement of the overall quality of urban residents. Previous research was focused on the quality of food, housing, education, transportation and entertainment. However, with the development of the knowledge-economy, such factors as information accessibility, green environment, and air quality, will be major considerations in the quality evaluation of the urban living space.展开更多
This paper took public space of the village of Shuzhang as the evaluation object,analyzed based on the picture and space syntax,used spatial syntax,field visit,literature reading,etc.,evaluated the construction,street...This paper took public space of the village of Shuzhang as the evaluation object,analyzed based on the picture and space syntax,used spatial syntax,field visit,literature reading,etc.,evaluated the construction,streets,space,culture and so on of the village,and revealed the characteristics of the spatial form and the present situation of the village.It provided reference for the future village protection and development of Shuzhang Village.At the same time,it also provided an effective reference and value system for the development and evaluation of the protection of traditional villages in the future.展开更多
Taking the Donghaochong River as a study case, the environmental evolution process and spatial characteristics of Donghaochong River are analyzed through field investigation, questionnaire and in-depth interview in th...Taking the Donghaochong River as a study case, the environmental evolution process and spatial characteristics of Donghaochong River are analyzed through field investigation, questionnaire and in-depth interview in the context of urban renewal and combining relevant historical documents and statistical data. From the perspective of users, the behavior characteristics and use demand of surrounding users for waterfront space of Donghaochong River in Guangzhou City and the evaluation of usage situation before and after reconstruction of Donghaochong River are summarized to provide relevant optimization suggestions for the creation of satisfactory waterfront landscape environment for users.展开更多
Rural complex is a bright spot for China to realize the development of new industries for rural revitalization.Starting from the concept,development history and current situation of rural complex,based on the perspect...Rural complex is a bright spot for China to realize the development of new industries for rural revitalization.Starting from the concept,development history and current situation of rural complex,based on the perspective of production-living-ecological space,according to the different characteristics of agriculture and tourism,3 secondary indices and 18 tertiary indices were selected,and each of them was weighted using the Delphi expert consultation method and analytic hierarchy process(AHP)to construct an evaluation system for the coupling degree of agriculture and tourism in rural complex.The results show gross domestic product and forest coverage have the most significant impact on agriculture,economic benefits and the ecological water quality of tourist attractions have the most significant impact on the tourism industry,and tourism economic benefits and agricultural ecological benefits have the most significant impact on rural complex.展开更多
In order to strengthen the construction of university library,promote the sustainable development of university library,and provide a good library space environment for university students,this paper expounds the qual...In order to strengthen the construction of university library,promote the sustainable development of university library,and provide a good library space environment for university students,this paper expounds the quality evaluation of university library by establishing the evaluation index of space service quality,and puts forward the ways to improve the service quality of University Library for reference.展开更多
With the globe getting highly internationalized, commercial activities have transformed from traditional buying and selling functions into more complicated functions. Thus, sounds coming from commercial activities are...With the globe getting highly internationalized, commercial activities have transformed from traditional buying and selling functions into more complicated functions. Thus, sounds coming from commercial activities are becoming much more multifarious, at the same time, more annoying. This is because of Taiwan’s special residence custom. In Taiwan, most people live in the residence commercial complex zoning, which means residents expose to the commercial activities noise in daily lives. In order to investigate residence commercial complex zoning sound environment from user’s point of view, there were 800 questionnaires handed round, and 273 questionnaires were replied. There are six evaluation factors in influencing molding commercial space sound environment. According to the users’ observation and experience, three factors play important roles in influencing users’ evaluation regarding sound environment design, including amenity(pleasant, comfortable or unpleasant, uncomfortable), vitality(active or inactive) , and atmosphere of warmth (warm or cold). In the regression analysis, amenity and volume(Leq) have a negative relationship(r=-0.558), which means volume is an important factor in commercial space sound environment molding. In the past, high volume amplifier system was applied extensively in commercial district to attract more crowds. However, amenity is declined under such noisy environment. It is a very important issue to study the trade off relationship between these two situations and improve noise problem in residence-commercial complex zoning.展开更多
基金The project of the Chinese Geological Survey'Survey of geothermal resources in the northern branch of Luoxiao Mountains'(Grant No.DD20221677-2)the special funds for basic scientific research business'Research on dome structure and circulation mechanism of annular hot spring chain'(Grant No.JKY202004)funded this research project。
文摘Underground space resources are important for the purposes of urban sustainable development and are a significant means by which to realize three-dimensional urban development.A reasonable and scientific evaluation of underground space resources is the foundation for the rational use of land resources and urban planning.On the basis of the geological conditions used by preceding researchers,this study adds the analysis of two influencing factors of social and economic value,alongside existing facilities and protection needs.The evaluation index is quantified and the comprehensive quality evaluation system of underground space resources is constructed.Finally,taking the Nanshan District of Shenzhen as an example,the evaluation of underground space resources is carried out.The results show that for shallow underground space,the comprehensive quality of underground space resources development in Nanshan District is generally high.Nantou,Nanshan and Yuehai streets are recommended as areas to actively develop underground space,whereas the Qianhai and Houhai areas are recommended to be used with caution in the development and construction of their underground space.In addition,this study also provides a reference for the purposes of underground space planning in the Nanshan district of Shenzhen.
文摘Taking the sociopetal space with high using rate and welcomed by visitors in Jingxiu Park of Baoding as the study object,human demands on spatial characteristics and space factors were evaluated by the method of POE,and modification measures of the sociopetal space in city opening park were put forward,which provided evidence for solving regional problems of city park and creating urban open space.
基金funded by the National Basic Research Program(2015CB452706)Hebei Social Science Fund Project(HB17GL020)Hebei Province Natural Science Foundation(D2018403031)。
文摘A rational utilization of land is a matter of importance in sustainable development of mountainous area.The land function in mountainous areas has a close connection with space structure of ecology,production and living.To promote a harmonious development of the relationship between people and nature in mountainous areas,it is necessary to coordinate their relationships of space functions.Suitability evaluation of basic unit function associated with multi-scale space analysis is a prerequisite to a reasonable optimization of land function structure.In this study,an optimized evaluation index system of combination functions was introduced into the assessment of ecological spatial functional suitability in ecological fragile regions by adding three indicators,namely,soil erosion sensitivity,landscape ecological risk and ecological sensitivity.The principle of"taking high"(referred to a function with high suitability to be regarded as the main function of an evaluation unit)and ecological priority(referred to the case,supposing the suitability of a unit’s three functions is consistent,the main function is determined to be the ecological function)were used to determine the main function of an evaluation unit.Pingshan County,China,located at the eastern foot of the Taihang Mountain,was targeted in this case study.The production-livingecology space(PLES)function in Pingshan was identified by applying our improved valuation indexes.Further,the functional suitability distribution of the combination of elements was obtained by using overlapping comprehensive analysis method,considering the tradeoff of the functional suitability of combination elements.The regions suitable for production/living were distributed in relatively flat piedmont plains,whereas the regions suitable for ecology were distributed in the mountain areas of middle and low altitudes.Therefore,to maintain a sustainable development in mountainous areas,an improved scheme of development for Pingshan should be to delineate ecologically fragile areas,to build ecological industrial parks near existing scenic spots,to protect basic agricultural production areas,and to increase investment in science and technology,including reasonable ecological compensation.This study can provide reference for the planning of sustainable development in the Taihang Mountain area and similar regions.
文摘The importance of ecological benefit analyses about green space systems has been widely discussed on the basis of a perceived bias towards the landscaping effect of green spaces to be built in urban areas as opposed to the perception of comprehensive ecological benefits of designed plant communities. Given the basic principle of ecological benefit analyses and evaluation methods widely applied today, the methodology to calculate ecological benefits and to model the expansion of urban green spaces by CITY- green 5.0 and its conditions for application were explored. We propose that aerial images can be substituted by AutoCAD graphics of a green space containing detailed information of plant dispositions by digitizing the key features during the working process in order to evaluate the ecological benefits quickly and to offer proper guidance to the establishment of small scale green spaces in urban areas. The theoretical foundation, potential application range and prospects for extension of the method are introduced by using the analysis of ecological benefits of the green spaces on the campus of Southwest Forestry College, Kunming, as an example.
文摘In order to improve the safety of the battery of satellite side mounting,and prevent the screw from producing excess due to frequent assembly and disassembly,the YS-20 material replacement and structure optimization design of the screw body are carried out under the premise of not changing the original tooling.The double⁃shear test of YS-20 bar is carried out,and the ANSYS optimization design module is used to design 7×7×6,a total of 294,calculation cases of D1,D2,T,the three important dimension parameters of screw structure.The actual bearing state of screw composite structure is accurately simulated by using asymmetric contact model.Three comprehensive evaluations are established,and the calculation examples satisfying the conditions are evaluated comprehensively.The final results are T=12.2 mm,D1=16 mm,D2=2 mm.The stress verification and contact analysis are carried out for the final scheme and the bearing state and contact state optimized screw structure are obtained.
文摘Urban planning often faces issues of spatial separation between blue and green spaces,as well as the lack of integration in slow traffic networks.The development and shaping of urban slow,blue,and green spaces often proceed along separate paths.However,building an ecological and livable city requires the integrated development of slow,blue,and green spaces.Taking the central urban area of Wuhan as a case study,this research uses ArcGIS visualization,walking accessibility analysis,and landscape pattern index analysis methods.By overlapping slow traffic spaces with blue and green spaces,the study explores the distribution of slow,blue,and green spaces and the integration characteristics of slow+blue-green spaces,categorizing them based on walking time and spatial aggregation.The results show:1)In the central urban area of Wuhan,blue spaces are predominant in the Yangtze River basin,the Han River-Sha Lake-East Lake-South Lake,Yangchun Lake-East Lake-South Lake-Yezhi Lake,and Longyang Lake-Moshui Lake directions,with clear dominant patches,while other areas show average performance;2)Green spaces have good patch dominance and connectivity along the Qingshan Park-East Lake Greenway-Moshan-Ma anshan Forest Park;3)The integration of blue and green spaces is best along the Yangtze River,East Lake,and South Lake;4)Areas such as Sha Lake Park in Wuchang District,East Lake Scenic Area in Hongshan District,the South Lake-Yezhi Lake corridor,Moshui Lake and Longyang Lake in Hanyang District,and the northern and southern parts of the Yangtze River are characterized by better integration of slow blue-green spaces.Through the overlay analysis of walking accessibility and landscape pattern indices of blue-green spaces,the study significantly reflects the integration characteristics of slow blue-green spaces in Wuhan s central urban area.This research aims to provide references for the planning and design of urban slow blue-green spaces and the construction of livable and ecological cities,offering practical guidance for creating a healthy urban ecological living environment and for urban ecosystem restoration and management.
文摘The exploitation and utilization of the city underground space resource is the important approach of building tri-dimensional and ecological cities, solving the environment,resource,and population crisis and continuing cities development.This article, based on the introduction in detail the overview of regional geology,hydrogeologic condition,engineering geology,environmental geology,etc.in center city of Tianjin,establishes evaluating model of urban underground space resource based on GIS
基金This paper is supported by National Natural Science Foundation of China(Grant Nos.41661109,4261043)Guangxi Science and Technology Base and Talent Special Project(Grant No.Guike AD19245041)Nanning Normal University Doctoral Research Project(Grant No.0819-2019L07).
文摘By reviewing the theories and methods of resource and environmental carrying capacity evaluation and suitability evaluation of land and space development,it provides theoretical and technical support for rational layout and optimization of land and space development pattern.From the aspects of resource carrying capacity,environmental carrying capacity,the importance of ecological protection,the suitability of agricultural production,and the suitability of urban construction,we sort out domestic and foreign documents.The evaluation of resource carrying capacity has changed from single-factor evaluation to multi-factor comprehensive evaluation.At present,the optimization of land use pattern based on the“three-generation”space is still under exploration,it is not enough to systematize and summarize the thought of optimizing the spatial pattern of the national territory.The theoretical framework,model,method and index of“dual evaluation”of territorial space need to be improved continuously,it also needs the scientific analysis and cognition from the natural direction to the human location direction and the spatial equilibrium state as the new driving force.
文摘Recently,underground space evaluation has become fundamental for a city’s long term sustainable development planning.This paper,based on the 3D-GIS tools,adopts"multi-factors comprehensive evaluation"models to establish a practicable underground space resources quantitative evaluation system.It sets up
文摘This methodological investigation deals with measurement and valuation of ecological service functions for urban green space. Social, economic and ecological dimensions for such types of function were analyzed and a concept “integrated ecological service functions” (IESF) was put forward for evaluation. Based upon this conceptual approach, an index system for measuring IESF for urban green space was established. With a methodological integration of fuzzy mathematics, decision making analysis and Delphi method, an AHP fuzzy evaluation techniques for IESF for urban green space, called AFIFUG method, was developed. Such a method has been directly applied to the land use strategic planning of Tianjin out ring green belt(TOGB), and its analysis results have been successfully put into operation.
基金Supported by United Fund of Guizhou Province(QKH J LKN[2013]24)Key Special Project of Guizhou Province(QKHZDZX[2014]6017)High-level Innovative Talents Training of Guizhou Province(QKHRC[2016]4024)
文摘[Objective] The paper was to understand the physiological response of space flight mutation new strains of Festuca arundinacea to high temperature stress. [Method] The influence of high temperature stress on eco-physiological characteristics of 11 F. arundinacea materials was studied in a pot experiment.Physiological and biochemical indexes,including soluble protein content,superoxide dismutase( SOD),peroxidase( POD) and catalase( CAT) activities,were measured and analyzed once every 4 d for a total of three times. Subordinate function and grey rational analysis were used to comprehensively evaluate the heat resistance of 11 materials. [Result] The soluble protein content decreased with the extension of heat resistance stress,while SOD,POD and CAT activities showed an upward trend. The high temperature resistance of 11 F. arundinacea materials was evaluated by subordinate function method. The resistance order was SP5-85> SP5-60 > SP5-71 > SP5-42 > SP5-94 > SP5-7 > SP5-88 > F. arundinacea cv Shuicheng > SP5-5 > SP5-89 = F. arundinacea cv Qiancao No. 1. The relational order of various heat resistance indexes and heat resistance obtained by grey rational analysis was SOD > CAT > POD > soluble protein content. [Conclusion]The result provides a theoretical basis for stress physiology and stress breeding of cold season grass in southwest region.
基金Supported by National Natural Science Funds(71462020)Humanities and Social Science Fund Project of Ministry of Education(12YJC630050)+3 种基金Soft Science Bidding Subject of Ministry of Agriculture(20140203)Soft Science Fund Project of Jiangxi Province(20141BBA10065)Science and Technology Project of Education Department of Jiangxi Province(GJJ13727)Humanities and Social Science Fund Project of Jiangxi Province(14GL06)
文摘The overall structure of live pig supply chain was constructed based on theoretical study and practical investigation, and the performance evaluation sys- tem for supply chain was studied from two perspectives of time and space and balanced score card （BSC）. From the space perspective and BSC, the performance evaluation system composed of four primary indicators （financial dimension, customer dimension, internal business dimension and innovation/learning perspective） and 26 secondary indicators. From the time perspective and BSC, the system could be divided into four stages, including formation stage, development stage, matu- rity stage and recession stage, with a total of 30 indicators.
基金Supported by Program of State Forestry Administration(2008-4-11)~~
文摘Wuhua District and Panlong District are two major downtown areas of Kuming City,recent construction and renovation of public green spaces in both districts have achieved considerable fruits.Through sampling major public green spaces in the study districts,plant landscapes were analyzed and compared on the basis of plant landscape evaluation system,principal characteristics of plant landscaping patterns in public green spaces of Kunming City and problems in the construction of public green spaces in both districts were summarized,so as to provide references for the landscape construction of public green spaces in Kunming City.
文摘Researchers' understandings of economic, ecological and social benefits of urban green spaces were discussed from many perspectives, connotations of such three major benefits were redefined, existing problems in the present evaluation were analyzed. According to service objects of urban green spaces, 6 relationship fields were classified, specifically, global ecology, regional environment, regional health, basic life, spiritual life and material life, a basic framework for evaluating economic, ecological and social benefits of urban green spaces was proposed.
基金Under theauspices oftheNational Natural Science Foundation of China (No.40071032)
文摘The quality dimension of the urban living space was addressed much earlier abroad; nevertheless, it has not been studied in the Chinese academia up to date, as evidenced by the limited research literature. Through recourse to Rich BOYER′s nine-factor theory, this study attempted to evaluate and rank 31 target cities, by using the data from the China Statistical Yearbook 2002. Our research results show that the quality of a city′s living space is in positive correlation with its size, and that there will be changing demands for the quality of the urban living space as a result of future social, economic, sci-tech, cultural and educational developments, combined with the improvement of the overall quality of urban residents. Previous research was focused on the quality of food, housing, education, transportation and entertainment. However, with the development of the knowledge-economy, such factors as information accessibility, green environment, and air quality, will be major considerations in the quality evaluation of the urban living space.
基金Sponsored by the National Natural Science Foundation of China(51808004)。
文摘This paper took public space of the village of Shuzhang as the evaluation object,analyzed based on the picture and space syntax,used spatial syntax,field visit,literature reading,etc.,evaluated the construction,streets,space,culture and so on of the village,and revealed the characteristics of the spatial form and the present situation of the village.It provided reference for the future village protection and development of Shuzhang Village.At the same time,it also provided an effective reference and value system for the development and evaluation of the protection of traditional villages in the future.
文摘Taking the Donghaochong River as a study case, the environmental evolution process and spatial characteristics of Donghaochong River are analyzed through field investigation, questionnaire and in-depth interview in the context of urban renewal and combining relevant historical documents and statistical data. From the perspective of users, the behavior characteristics and use demand of surrounding users for waterfront space of Donghaochong River in Guangzhou City and the evaluation of usage situation before and after reconstruction of Donghaochong River are summarized to provide relevant optimization suggestions for the creation of satisfactory waterfront landscape environment for users.
基金National Undergraduates'Innovation and Entrepreneurship Training Program of China(201910626028).
文摘Rural complex is a bright spot for China to realize the development of new industries for rural revitalization.Starting from the concept,development history and current situation of rural complex,based on the perspective of production-living-ecological space,according to the different characteristics of agriculture and tourism,3 secondary indices and 18 tertiary indices were selected,and each of them was weighted using the Delphi expert consultation method and analytic hierarchy process(AHP)to construct an evaluation system for the coupling degree of agriculture and tourism in rural complex.The results show gross domestic product and forest coverage have the most significant impact on agriculture,economic benefits and the ecological water quality of tourist attractions have the most significant impact on the tourism industry,and tourism economic benefits and agricultural ecological benefits have the most significant impact on rural complex.
文摘In order to strengthen the construction of university library,promote the sustainable development of university library,and provide a good library space environment for university students,this paper expounds the quality evaluation of university library by establishing the evaluation index of space service quality,and puts forward the ways to improve the service quality of University Library for reference.
文摘With the globe getting highly internationalized, commercial activities have transformed from traditional buying and selling functions into more complicated functions. Thus, sounds coming from commercial activities are becoming much more multifarious, at the same time, more annoying. This is because of Taiwan’s special residence custom. In Taiwan, most people live in the residence commercial complex zoning, which means residents expose to the commercial activities noise in daily lives. In order to investigate residence commercial complex zoning sound environment from user’s point of view, there were 800 questionnaires handed round, and 273 questionnaires were replied. There are six evaluation factors in influencing molding commercial space sound environment. According to the users’ observation and experience, three factors play important roles in influencing users’ evaluation regarding sound environment design, including amenity(pleasant, comfortable or unpleasant, uncomfortable), vitality(active or inactive) , and atmosphere of warmth (warm or cold). In the regression analysis, amenity and volume(Leq) have a negative relationship(r=-0.558), which means volume is an important factor in commercial space sound environment molding. In the past, high volume amplifier system was applied extensively in commercial district to attract more crowds. However, amenity is declined under such noisy environment. It is a very important issue to study the trade off relationship between these two situations and improve noise problem in residence-commercial complex zoning.
