摘要
目的以科学指导南水北调中线工程水源区各分区水土保持生态建设,为南水北调中线工程提供优质可靠的水源保证。方法以各县土壤侵蚀量、人口密度、降雨量和该县内汉、丹江流域面积作为分区指标,运用模糊聚类分析方法进行分区。结果31个县可分为3个区,每个分区的特点和指标各有差异,即Ⅰ区流域面积较大,人口密集,水土流失现象较严重,Ⅱ,Ⅲ区水土流失现象较轻。结论针对各分区特点提出不同水土保持治理建议,即Ⅰ区应以加大水土保持治理为主Ⅱ,Ⅲ区以预防保护为主等。
Aim Scientific guidance to the water and soil conservation ecological construction, to provide quality water for south-to-north water diversion. Methods Use of quantity of soil erosion, population density, rainfall, the Han and Danjiang River drainage area of the four characteristics. Use of fuzzy clustering analysis of the South-North Water Transfer Zone in Shaanxi section. Results Through the fuzzy relationship similar matrix to divide the 31 counties into 3 zones Ⅰ zone thedrainage is large, population density, soil erosion is a serious problem Ⅱ and Ⅲ zone solierosion not serious. Conclusion Based on the characteristics of each district, different soil and water management proposals were offered. Ⅰ zone increase soil and water conservasion management. Ⅱ and Ⅲ zone mainly to prerent soil erosion.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第4期656-659,共4页
Journal of Northwest University（Natural Science Edition）
基金
陕西省水土保持局计划基金资助项目(2007-06-11)
关键词
南水北调中线工程
水源区
水土保持生态建设
模糊聚类
south-to-north water diversion project
water district
the water and soil conservation ecological construction
fuzzy cluster
