摘要
湖泊动态变化一直是区域环境变化和经济、生态环境的可持续发展研究的重要课题。本研究分别基于水体指数模型(NDWI)和改进的水体指数模型(MNDWI),基于GIS和RS等技术,并结合人工目视解译的方法,使用IDL算法和ModelBuilder自动化提取江苏省内2009—2019年十个时期,太湖、洪泽湖、高邮湖、骆马湖湖泊数据,建立了湖泊空间数据库,得到以下结论:2009—2014年,湖泊面积呈现减少的趋势,2015—2016年,湖泊面积增加,2017—2019年湖泊面积缓慢增加;四大湖泊中太湖流域景观形状指数最小,最不易受到人类生活活动影响;江苏省湖泊质心整体呈现由东南向西北的偏移。
the dynamic change of lakes has always been an important topic in the study of regional environmental change and sustainable development of economy and ecological environment.This study based on NDWI and MNDWI,GIS and RS technologies,combined with artificial visual interpretation,used IDL algorithm and ModelBuilder to automatically extract Lake data of Taihu Lake,Hongze Lake,Gaoyou Lake and Luoma Lake from 2009 to 2019 in Jiangsu Province,and a lake spatial database is established.The conclusions are as follows:from 2009 to 2014,the lake area showed a decreasing trend,from 2015 to 2016,the lake area increased,and from2017 to 2019,the lake area slowly increased;among the four lakes,the landscape shape index of Taihu Lake was the smallest,and it was the least affected by human activities;the lake centroid of Jiangsu Province showed an overall shift from southeast to northwest.
作者
李杨
解琨
梁子亮
LI Yang;XIE Kun;LIANG Ziliang(Jiangsu Basic Geographic Information Center,Nanjing 210000,China)
出处
《测绘地理信息》
CSCD
2022年第S01期172-176,共5页
Journal of Geomatics
基金
精密工程与工业测量国家测绘地理信息局重点实验室开放研究基金(PF2017-15)
