基于土壤流失方程的土壤保持服务评估研究——以连云港市东海县为例  

Evaluation of Soil Conservation Services Based on Soil Loss Equation:Take Donghai County of Lianyungang City as an Example

作　　者：王飞 王皓辰 刘昊天 郎施展 邹洋 李丽 WANG Fei;WANG Haochen;LIU Haotian;LANG Shizhan;ZOU Yang;LI Li(School of Marine Technology and Surveying and Mapping,Jiangsu Ocean University,Lianyungang 222005,China)

机构地区：[1]江苏海洋大学海洋技术与测绘学院,江苏连云港222005

出　　处：《测绘与空间地理信息》2022年第5期52-56,共5页Geomatics & Spatial Information Technology

基　　金：江苏海洋大学大学生实践创新训练计划项目(Z202011641632001)资助。

摘　　要：以江苏省连云港市东海县为研究对象,利用遥感和GIS(Geographic Information System)空间分析方法,结合通用土壤流失方程(USLE)对连云港市东海县2020年土壤保持服务进行评估。结果表明:2020年,连云港市东海县地区土壤保持总量为8.35×10^(4)t,且土壤保持量呈较为均匀地分布,全县土壤保持服务价值为1.07亿元。土壤保持服务主要受降雨、土壤理化性质和地形地貌的影响,东海县东部的潜在土壤侵蚀量需要格外重视,因此区域生态系统建设及管理政策的支持力度要不断加强。Taking Donghai county of Lianyungang city of Jiangsu province as the research object,this paper uses remote sensing and GIS(Geographic Information System)spatial analysis methods,in combination with universal soil loss equation(USLE),to evaluate the soil conservation services of Donghai county of Lianyungang city in 2020.The results showed that:the total amount of soil conservation in Donghai county of Lianyungang city was 8.35×10^(4) t in 2020,and the amount of soil conservation was evenly distributed,and the service value of soil conservation in the whole county was 1.07×10^(8) yuan.Soil conservation services are mainly affected by rainfall,soil physical and chemical properties and topography.The potential amount of soil erosion in the east of Donghai county needs to be paid more attention.Therefore,the support of regional ecosystem construction and management policies should be strengthened.

关 键 词：土地利用 土壤保持服务 通用土壤流失方程 遥感 GIS空间分析 

分 类 号：P237[天文地球—摄影测量与遥感]