基于生态风险评价的水网乡村适应性规划研究--以吴江三白荡片区为例

Research on Rural Adaptability Planning of Water Network Based on Ecological Risk Assessment:Taking Wujiang Sanbaidang Area as an Example

作为乡村振兴的先行区,苏南地区乡村建设发展程度较高,但过快的城镇化进程也给乡村带来了水网格局破碎、生态功能降低等问题,导致乡村面临的生态风险增加,静态的景观规划方法逐渐无法适应当前乡村生态文明发展的需求。论文以苏南乡村的地域特征为基础,选取苏州吴江三白荡北部片区的乡村为研究对象,在生态要素识别的基础上,通过景观干扰度分析和景观脆弱度分析构建生态风险评价体系,并得到研究区生态风险空间分布。依据不同风险等级经空间分异将研究区域划分为生态维育区、动态适应区和综合建设区,分别从构建生态安全格局、改善乡村适应性循环和提升乡村多情境反馈三方面提出苏南水网乡村适应性规划策略。

As a leading area for rural revitalization,rural areas in southern Jiangsu have a relatively high level of construction and development.However,the rapid urbanization process has also brought problems such as fragmentation of water grids and reduced rural ecological functions to the villages,resulting in increased ecological risks faced by the villages,and then static landscape planning methods are gradually unable to meet the needs of the current rural ecological civilization construction and development.This research takes the regional characteristics of rural areas in south of Jiangsu as the research basis,selects the rural areas in the northern part of Sanbaidang,Wujiang,Suzhou as the research objects.Based on the identification of ecological elements,the ecological risk assessment system is constructed through the landscape disturbance index and the landscape vulnerability index.The spatial distribution of ecological risks in the study area is obtained.According to the results of ecological risk assessment,the research area is divided into ecological maintenance area,dynamic adaptation area and comprehensive construction area according to different levels.Suggestions are put forward from the three aspects of constructing ecological security pattern,improving rural adaptability cycle and enhancing rural multi-situation feedback.