摘要
以陕西省宝鸡市为研究对象,在GIS系统支持下,运用单要素敏感性评价和综合敏感性评价两种方法,从土壤侵蚀、生境、地质灾害3个方面对宝鸡市土地生态敏感性及其空间分布进行了研究。研究结果表明,宝鸡市土地生态敏感性区域差异比较明显,轻度敏感区占市域总面积的62.1%,中度敏感区占37.0%,高度敏感区所占的比例较小,占0.9%。最后结合生态敏感性评价结果,提出了各区块的土地生态环境建设和保护对策,为宝鸡市区域土地生态环境保护提供决策依据。
By taking Baiji City of Shaanxi Province as a research object, land sensibility and its spatial distri- bution are studied in views of the sensitivities to soil erosion, bio-diversity protection, and geology disaster under support of GIS technologies. Single and comprehensive element sensitivity assessment is used in the study. Results show that regional differences of land eco-environmental sensitivity in the city are compara- tively obvious. The proportion of slightly sensitive area to the total area is 62.1%; the moderately sensitive area accounts for 37%; and highly sensitive area shares the smallest proportion, only accounting for 0.9%. By combining with the result of eco-environmental sensitivity assessment, countermeasures for eco-environ- mental construction and protection of each of the areas are proposed and a basis for government making land policy is provided.
出处
《水土保持通报》
CSCD
北大核心
2009年第4期200-204,共5页
Bulletin of Soil and Water Conservation
基金
宝鸡市土地利用总体规划修编前期专题研究
关键词
土地生态环境
敏感性评价
宝鸡市
land eco-environment
sensitivity assessment
Baoji City
