南京市土地利用与生态环境协调发展研究

Study on the Coordinated Development between Land Use and Ecological Environment in Nanjing City

协调土地利用与生态环境的关系是区域土地利用规划的重要环节.利用统计分析法、文献资料法,结合实地调研,综合分析评价了南京市不同土地利用类型对生态环境的影响.结果表明:建设用地对生态环境的影响主要体现在工业污染、城镇生活污染、地质灾害、城市热岛效应等方面.农业用地对生态环境的影响具有农业面源污染问题严峻,高效生态农业有利于稳定和改善生态环境的两面性.未利用土地对于维护和改善生态环境意义重大.针对实际,提出建立不同土地利用类型的环境友好型土地利用模式,协调土地利用与生态环境的关系,并提出进行土地利用的环境影响程度分级研究、加强生态环境研究与监测、优化区域土地利用布局等建议.

The coordinated relations between land use and the eco-environment are important links for regional land use plan. Methods of statistical analysis, documentation and investigation were employed to assess the ecologic and environmental influences for different land types in Nanjing City. The study indicate that the influences on ecology and environment of built-up land mainly contain the industry and domestic pollution, the geological disaster, and the ＂heat island effect＂ of city, etc. ; the utilization of agricultural land has two opposite influences on ecology and environment, i.e. on the one hand the non-point source pollution is stern, on the other hand the highly effective ecological agriculture is advantageous to stabilize and can improve ecological environment; the unused land is significant for maintaining and improving the ecological environment. According to the fact, the environmental friendly land use patterns for different land types were propounded to coordinate the relations between land use and eco-environment. And some suggestions for the future research were proposed, such as dividing the influence degree of land use on environment, enhancing the study and monitor of eco-environment, and optimizing regional land use layout.