Based on the field surveys and repeated cross-profile observations combined with the comparison of many years’ topog-raphic maps,this study shows the spatial variability and varying patterns of coastal erosion along ...Based on the field surveys and repeated cross-profile observations combined with the comparison of many years’ topog-raphic maps,this study shows the spatial variability and varying patterns of coastal erosion along the west coast of the Taiwan Strait.Regional differentiation in the Meso-Cenozoic coastal tectonics determined the irregular coastline and geological background for large-scale coastal erosion distribution.The intensity of coastal erosion on the west side of the Taiwan Strait is mild in the northern region,severe in the central region and modest in the southern region.The beaches along the coast are mainly backed by dunes,sea-walls or cliffs.The dunes and beaches show periodic erosion and recovery along the coast adjacent to river mouths,while persistent retreat of frontal dunes and beaches tends to occur in other areas.The beach erosion occurs mainly in front of seawalls.Due to the low strength of the unconsolidated sediment the soft cliffs suffer the severest coastline recession.Sea level rise and river sediment discharge reduction are main causes of coastal erosion.Storm surge is common in the studied area and plays an important role in the progress of coastal erosion.Human activities including coastal constructions and sand mining also tend to interfere strongly with the balance of sediment budget in some coastal cells.展开更多
With the implementation of reform and opening-up, the overall economy of China has made brilliant achievements; meanwhile, however, the economic disparity has been enlarging among some regions, and between the city an...With the implementation of reform and opening-up, the overall economy of China has made brilliant achievements; meanwhile, however, the economic disparity has been enlarging among some regions, and between the city and the countryside. The existence and evolution of this kind of economic disparity is concerned with social stability, sustainable development and the construction of harmonious society, which has gradually become the hotspot in social economic development. The West Coast of the Strait (WCS) located in southeast littoral areas is adjacent to the Pearl and Yangtze River Delta in the south and north and faces Taiwan Province in the east. The stability and development of this region has vital political and economic meaning in the social eco-nomic development of our country. It has important theoretical meaning and practical value to research the form, characteristics and evolution of regional economic disparity in the WCS. Based on insightful analysis on existing study results on the WCS, the paper defines the connotation and extension. By a series of abso-lute and comparative relative evaluation indexes and taking the WCS since 1992 as the study object, the paper makes analysis on different scales including three regions, four regions, 20 cities and 152 counties, quantitatively evaluates the level, characteristics and evolution of the regional economic disparity and compares the regional economic disparity on different scales. The main conclu-sions are as follows: the variation trend of the absolute disparity of the whole region is obvious and stable, which has presented an inflating trend; the comparative variation trend on a large scale has waved, The comparative disparity of the three regions in-creased annually from 1992 to around 2000, which had a decreas-ing trend from around 2000 to 2005; the comparative variation trend on a small scale was not stable, which showed an annual increase of four regions, 20 cities and 152 counties from 1992 to around 2003 and a decrease from around 2003 to 2005; there were some correlations between the regional disparity and scale. In other words, the smaller the scale was, the bigger the disparity was.展开更多
According to practice and exploration of spark program for 26 years in Quanzhou,the main model and their effects of new rural construction in west bank of Taiwan Strait led by spark science and technology were expound...According to practice and exploration of spark program for 26 years in Quanzhou,the main model and their effects of new rural construction in west bank of Taiwan Strait led by spark science and technology were expounded. Six spark program systems were established,consisting of policy support guide,science and technology project lead,experts' intelligence support,spark science and technology training,scitech information service and spark program demonstration. Five spark projects were implemented to promote new rural construction in the west bank of Taiwan Strait,such as constructing the national spark industrial zone,organizing the new rural construction led by science and technology,constituting spark sci-tech innovation center,developing the rural informatization,and establishing science and technology commissioner bases. Finally,enlightenment of spark program and its development ways in the future were put forward.展开更多
2019年4月19日20时—4月26日07时,台湾海峡西岸发生了一次严重海雾事件,通过海西沿海的自动气象站数据进行了海雾生消规律研究。海雾集中于02时至08时发生,其生成时间越接近清晨,持续时间越短。海雾多为本地生成,部分站点海雾为传播而...2019年4月19日20时—4月26日07时,台湾海峡西岸发生了一次严重海雾事件,通过海西沿海的自动气象站数据进行了海雾生消规律研究。海雾集中于02时至08时发生,其生成时间越接近清晨,持续时间越短。海雾多为本地生成,部分站点海雾为传播而形成且南北海雾之间关联性不大。海雾发生前能见度均快速下降,海雾消亡后能见度快速上升。当海雾生成时,陆表温度–气温LST-T(LST,land surface temperature;T,temperature)在-1.7~2℃之间,陆表温度–露点温度LST-Td(dewpoint temperature,Td)在-1~2.7℃之间,T-Td在0.2~1℃之间,海雾维持阶段相对湿度(relative humility,RH)≥96%。在水汽丰沛的大背景下,海雾生成与发展与风速的关系较为密切,与风向的关系较弱。结合Himawari-8卫星影像与ERA5(European centre for fifth generation of atmospheric reanalysis)再分析资料对本次海雾过程的特征进行了分析。卫星影像给出了本次过程的影响范围和生消特点。环流形势表明,500h Pa上福建处于槽后脊前弱西南气流控制下。850h Pa和925h Pa高度场上均受西南气流的影响,带来了充沛的水汽,根据海气状况分析此次海雾类型为平流雾。展开更多
基金supported by the National Science Foundation of China (No.40976057)the State Oceanic Administration of China (No.908-02-03-04)
文摘Based on the field surveys and repeated cross-profile observations combined with the comparison of many years’ topog-raphic maps,this study shows the spatial variability and varying patterns of coastal erosion along the west coast of the Taiwan Strait.Regional differentiation in the Meso-Cenozoic coastal tectonics determined the irregular coastline and geological background for large-scale coastal erosion distribution.The intensity of coastal erosion on the west side of the Taiwan Strait is mild in the northern region,severe in the central region and modest in the southern region.The beaches along the coast are mainly backed by dunes,sea-walls or cliffs.The dunes and beaches show periodic erosion and recovery along the coast adjacent to river mouths,while persistent retreat of frontal dunes and beaches tends to occur in other areas.The beach erosion occurs mainly in front of seawalls.Due to the low strength of the unconsolidated sediment the soft cliffs suffer the severest coastline recession.Sea level rise and river sediment discharge reduction are main causes of coastal erosion.Storm surge is common in the studied area and plays an important role in the progress of coastal erosion.Human activities including coastal constructions and sand mining also tend to interfere strongly with the balance of sediment budget in some coastal cells.
文摘With the implementation of reform and opening-up, the overall economy of China has made brilliant achievements; meanwhile, however, the economic disparity has been enlarging among some regions, and between the city and the countryside. The existence and evolution of this kind of economic disparity is concerned with social stability, sustainable development and the construction of harmonious society, which has gradually become the hotspot in social economic development. The West Coast of the Strait (WCS) located in southeast littoral areas is adjacent to the Pearl and Yangtze River Delta in the south and north and faces Taiwan Province in the east. The stability and development of this region has vital political and economic meaning in the social eco-nomic development of our country. It has important theoretical meaning and practical value to research the form, characteristics and evolution of regional economic disparity in the WCS. Based on insightful analysis on existing study results on the WCS, the paper defines the connotation and extension. By a series of abso-lute and comparative relative evaluation indexes and taking the WCS since 1992 as the study object, the paper makes analysis on different scales including three regions, four regions, 20 cities and 152 counties, quantitatively evaluates the level, characteristics and evolution of the regional economic disparity and compares the regional economic disparity on different scales. The main conclu-sions are as follows: the variation trend of the absolute disparity of the whole region is obvious and stable, which has presented an inflating trend; the comparative variation trend on a large scale has waved, The comparative disparity of the three regions in-creased annually from 1992 to around 2000, which had a decreas-ing trend from around 2000 to 2005; the comparative variation trend on a small scale was not stable, which showed an annual increase of four regions, 20 cities and 152 counties from 1992 to around 2003 and a decrease from around 2003 to 2005; there were some correlations between the regional disparity and scale. In other words, the smaller the scale was, the bigger the disparity was.
基金Supported by the Regional Science and Technology Project of Fujian Province,China(2009N3007)Science and Technology Project of Quanzhou City,Fujian Province,China(2008ZD11-1)12396 Multimedia Information Remote Service Platform Construction of Spark Science and Technology for Quanzhou City,Fujian Province,China(2008ZD15,2011ZD04N01)
文摘According to practice and exploration of spark program for 26 years in Quanzhou,the main model and their effects of new rural construction in west bank of Taiwan Strait led by spark science and technology were expounded. Six spark program systems were established,consisting of policy support guide,science and technology project lead,experts' intelligence support,spark science and technology training,scitech information service and spark program demonstration. Five spark projects were implemented to promote new rural construction in the west bank of Taiwan Strait,such as constructing the national spark industrial zone,organizing the new rural construction led by science and technology,constituting spark sci-tech innovation center,developing the rural informatization,and establishing science and technology commissioner bases. Finally,enlightenment of spark program and its development ways in the future were put forward.
文摘2019年4月19日20时—4月26日07时,台湾海峡西岸发生了一次严重海雾事件,通过海西沿海的自动气象站数据进行了海雾生消规律研究。海雾集中于02时至08时发生,其生成时间越接近清晨,持续时间越短。海雾多为本地生成,部分站点海雾为传播而形成且南北海雾之间关联性不大。海雾发生前能见度均快速下降,海雾消亡后能见度快速上升。当海雾生成时,陆表温度–气温LST-T(LST,land surface temperature;T,temperature)在-1.7~2℃之间,陆表温度–露点温度LST-Td(dewpoint temperature,Td)在-1~2.7℃之间,T-Td在0.2~1℃之间,海雾维持阶段相对湿度(relative humility,RH)≥96%。在水汽丰沛的大背景下,海雾生成与发展与风速的关系较为密切,与风向的关系较弱。结合Himawari-8卫星影像与ERA5(European centre for fifth generation of atmospheric reanalysis)再分析资料对本次海雾过程的特征进行了分析。卫星影像给出了本次过程的影响范围和生消特点。环流形势表明,500h Pa上福建处于槽后脊前弱西南气流控制下。850h Pa和925h Pa高度场上均受西南气流的影响,带来了充沛的水汽,根据海气状况分析此次海雾类型为平流雾。
