摘要
进行耕地生态承载力供需评价,对区域耕地资源合理开发利用,协调人与自然环境可持续发展具有重要意义。以喀斯特地区耕地生态承载力供需现状为切入点,借助耕地生态足迹模型和GIS软件,在修正耕地产量因子基础上,对以喀斯特地貌为主的铜仁市2017年耕地生态供需现状进行定量评价。结果表明:1)铜仁市耕地资源生态承载力供给状态良好;2)各区县耕地生态承载力供需平衡指数EI与耕地面积、农业产值之间存在明显的负相关关系;3)各区县耕地生态承载力供需平衡指数EI与地区人口数量及生产总值之间存在正相关关系。以期为铜仁市生态安全预警、国土空间规划编制及农业产业结构调整提供决策依据。
Taking the current situation of cultivated land ecological carrying capacity supply and demand in Karst areas as the entry point,the current situation of cultivated land ecological supply and demand in tongren in 2017,which is dominated by Karst landform,was quantitatively evaluated by using the model of cultivated land ecological footprint and GIS software and modifying the cultivated land yield factor.The results show that :1)The supply and demand of cultivated land ecological carrying capacity in tongren is in good condition,and there is a significant difference in spatial distribution,which is manifested as rich in the north and south,but surplus in the east and west;2) There is a significant negative correlation between EI ,the balance index of supply and demand of cultivated land ecological carrying capacity,cultivated land area and agricultural output value in each district and county;3)There is a positive correlation between the supply and demand balance index EI of cultivated land ecological carrying capacity of each district and county and the population and GDP of the region.It can provide decision-making basis for the early warning of ecological security,the overall planning of land use and the adjustment of agricultural industrial structure in Tongren city.
作者
王雅敬
赵震洋
王金艳
罗海波
WANG Yajing;ZHAO Zhenyang;WANG Jinyan;LUO Haibo(Tongren Municipal Bureau of Land and Resources,Tongren,Guizhou 554300,China)
出处
《贵州师范大学学报（自然科学版）》
CAS
2019年第4期7-12,共6页
Journal of Guizhou Normal University：Natural Sciences
基金
国家重点研发计划项目(2016YFC0502406)
教育部人文社科重点研究基地重大项目(14JJD720016)
关键词
生态承载力
耕地
供需现状
铜仁市
ecological carrying capacity
cultivated land
supply and demand
Tongren
