平原河网地区水土保持总体方案——以上海市为例

Overall Scheme of Soil and Water Conservation for Plain River Network District——A Case Study in Shanghai City

[目的]对平原河网地区水土保持总体方案进行研究,为完善该地区水土保持监管体系提供理论支持。[方法]以上海市为例,深入分析了全市的水土流失特点、水土保持监管工作现状和存在问题,采用数值模型等方法定性与定量相结合方法。[结果]上海市水土保持分区主要包括流失重点预防区(4大块以及细分出的10个部分)、重点治理区(骨干航道以及流速较大的河道)和易发区(水土流失重点预防区、重点治理区以及开发建设区域);提出了完善该市水土保持监管体系的初步设想以及近期需要开展的水土保持监管工作。[结论]上海市应以生态文明建设为契机,积极完善市级水土保持监管体系,推进水土保持工作进一步开展。

[Objective] The overall scheme of soil and water conservation for plain river district was put for- ward to refine the regulation scheme of soil and water conservation. [Methods] Using numerical models, we analyzed the features of soil and water loss of Shanghai City qualitatively and quantitatively by studying the situations of soil and water conservation and found out the problems needed to be corrected in similar district. [Results] In terms of soil and water conservation, Shanghai City could be sub-zoned into key prevention sub- areas（ten units in four parts）, key control sub-areas（including main waterways and stream channels with quick current ）, and erodible sub-areas（including key prevention sections, key control sections and developing and constructing sections）. Beside that, some suggestions on how to reinforce the conservation regulation and some regulation works needed to be carried out in the future were proposed. [Conclusion] Policy of ecological civilization promotion in Shanghai City should be conducted well to improve the municipal management of soil and water conservation.