农村面源污染强度与生态非敏感性强度的空间耦合协调性分析——以鲹鱼河流域会东段为例  

Spatial Coupling Coordination Analysis of Rural Non-point Source Pollution Intensity and Ecological Non-Sensitivity Intensity—Taking Huidong Section of Trevally River Basin as an Example

作　　者：王世忠 张利红 王晓庆 袁建明 黄程璐 WANG Shi-zong;ZHANG Li-hong;WANG Xiao-qing(School of Public Administration,Zhejiang University of Finance and Economy,Hangzhou,Zhejiang 310018;East China Institute of Survey,Design and Research,Hangzhou,Zhejiang 311122)

机构地区：[1]浙江财经大学公共管理学院,浙江杭州310018 [2]华东勘测设计研究院,浙江杭州311122

出　　处：《安徽农业科学》2024年第4期62-70,共9页Journal of Anhui Agricultural Sciences

摘　　要：农村面源污染问题是当前研究的热点和难点问题。以鲹鱼河流域会东段为例,构建了农村面源污染强度与生态非敏感性强度的空间耦合协调度模型,并对各斑块的农村面源污染强度、生态非敏感性强度和空间耦合协调度进行了计算和空间分析。结果表明:鲹鱼河流域会东段虽然有60.55%的土地处于优质耦合协调区和良好耦合协调区,但仍然有11.96%的土地处于极度失调区,农村面源污染带来的生态环境问题依然非常严峻;耦合协调度的热点区和冷点区的空间分布非常明显,99%置信区间的热点区面积占56.08%,99%置信区间的冷点区面积占21.21%;养殖业污染是鲹鱼河流域会东段农村主要的面源污染源,是影响空间耦合协调性的主要因素。建议各乡镇科学地划定畜牧业的禁养限养区,合理确定养殖规模,推行种养结合和生态养殖模式;科学布设生态田埂、生态沟渠和生态池塘等系统,以防止农业尾水和农村生活污水未经任何处理直接排入河道;逐步降低和减少农村经济社会活动对生态环境尤其是生态高敏感区的农村生态环境的影响和干扰。Rural non-point source pollution is a hot and difficult problem in current research.Taking the Huidong section of the Trevally River basin as an example,this paper constructs a spatial coupling coordination model of rural non-point source pollution intensity and ecological non sensitivity intensity,and the rural non-point source pollution intensity,ecological non sensitivity intensity and spatial coupling coordination degree of each patch were calculated and analyzed.The results show that:Although 60.55%of the land in Huidong section of Trevally River basin is in high-quality coupling coordination area and good coupling coordination area,11.96%of the land is still in extreme imbalance area,and the ecological and environmental problems caused by rural non-point source pollution are still very serious;The spatial distribution of hot spots and cold spots of coupling coordination degree is very obvious,the hot spot area of 99%confidence interval accounts for 56.08%,and the cold spot area of 99%confidence interval accounts for 21.21%;Aquaculture pollution is the main non-point source pollution source in rural areas in Huidong section of Trevally River basin,and it is the main factor affecting the spatial coupling coordination.It suggests that each villages and towns scientifically delimit the no breeding and limited breeding areas of animal husbandry,reasonably determine the breeding scale,and promote the combination of planting and breeding and ecological breeding mode;Ecological ridge,ecological ditch and ecological pond systems shall be scientifically arranged to prevent agricultural tail water and rural domestic sewage from being directly discharged into the river without any treatment;The impact and interference of rural economic and social activities on the ecological environment,especially the rural ecological environment in ecological highly sensitive areas should be gradually reduced.

关 键 词：面源污染强度 生态非敏感性强度 空间耦合协调模型 耦合协调度 

分 类 号：X71[环境科学与工程—环境工程]