基于RULSE的江淮生态经济区水土流失量分析  

Analysis of Soil Erosion in Jianghuai Ecological Economic Zone Based on RULSE

作　　者：柴燕妮 张浩[1] 钱梦茹 CHAI Yanni;ZHANG Hao;QIAN Mengru(Provincial Geomatics Centre of Jiangsu,Nanjing 210013,China)

机构地区：[1]江苏省基础地理信息中心,江苏南京210013

出　　处：《测绘与空间地理信息》2021年第11期66-69,72,共5页Geomatics & Spatial Information Technology

基　　金：江淮生态经济区生态空间监测项目(066018214296);扬子江城市群生态空间综合监测项目(066017H13533)资助。

摘　　要：江淮生态经济区拥有独特的生态资源优势,是江苏省“1+3”重点功能区战略的重要组成部分,且在新时期,江苏发展中的地位不断凸显,作为省级生态重点建设区,了解区域内的水土流失状况至关重要。本文基于修正通用水土流失方程RULSE,结合地理国情数据,从时空视角对2015—2018年江淮生态经济区的水土流失情况进行评估分析,得到以下主要结论:1)近几年来,江淮生态经济区西部地区水土流失强度高于东部地区,但整体上处于微度和轻度侵蚀状态;2)2015—2018年,江淮生态经济区微度侵蚀水土流失面积增加,轻度侵蚀以上水土流失面积减少,除宿豫区外,其他区县中度侵蚀以上水土流失面积均呈减少状态,总体上呈现好转的趋势。Jianghuai Ecological Economic Zone with unique ecological resource advantages is an important part of the“1+3”key functional zone strategy.In the development of new era and new Jiangsu,its status has become increasingly prominent.As a provincial ecological key construction region,it is important to understand the situation of soil erosion.Based on the RULSE model,combined with the geographical condition data,this paper analyzes the situation of soil erosion in Jianghuai Ecological Economic Zone from the perspective of time and space from 2015 to 2018,and draws the following main conclusions:(1)In recent years,the intensity of soil erosion in the western region is higher than that in eastern region of the Jianghuai Ecological Economic Zone,but overall it is in a state of slight and mild erosion;(2)From 2015 to 2018,the area of slight erosion increases,and the area of above light erosion is reduced in the Jianghuai Ecological Economic Zone.Except for the Suyu district,the area above moderate erosion showed a decreasing state in other districts,and the overall state showed a trend of improvement.

关 键 词：水土流失 RULSE模型 生态环境 江淮生态经济区 地理国情 

分 类 号：P208[天文地球—地图制图学与地理信息工程]