重点功能区生态用地变化及驱动力分析

Analysis on the Change and Driving Force of Ecological Land in Key Functional Areas

基于地理国情数据,利用遥感、地理信息系统(Geographic Information System,GIS)等技术手段,分析江淮生态经济区生态用地时空变化特征及驱动力因素。通过分析可知:2015—2018年,江淮生态经济区内蓝色生态用地增加,绿色生态用地减少。开挖坑塘、退耕还湖(还湿)等人类活动是蓝色生态用地增加的主要驱动因素;造成绿色生态用地减少的主要原因是近年来开展的树种更新砍伐工程,尤其在废黄河、淮沭河河道边,宿城区邓庄、泗阳县魏圩村等村庄周边较为显著。

Based on the geographical conditions data,using remote sensing GIS and other technical means,in this paper,it analyzed the spatial-temporal change characteristics and driving factors of Jianghuai ecological economic zone.Through the analysis,it was concluded that:from 2015 to 2018,the blue ecological land increased,while the green ecological land decreased.The main driving factors for the increase of blue ecological land were digging ponds and returning farmland to Lake(returning wet);the main cause for the decrease of green ecological land was the tree species regeneration and felling project carried out in recent years,especially in the abandoned Yellow River,Huaishu River,Dengzhuang village in Sucheng District and Weiwei village in Siyang County.