气象驱动下的终端湖泊流域环境变化研究  

Research on Environmental Changes in Terminal Lake Basin Driven by Meteorology

作　　者：汤金颖 景海涛[1] 刘盼盼 张大鹏 刘琪 王磊[1] TANG Jinying;JING Haitao;LIU Panpan;ZHANG Dapeng;LIU Qi;WANG Lei(School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454000

出　　处：《地理空间信息》2023年第8期109-113,共5页Geospatial Information

基　　金：国家自然科学基金资助项目(41801318)。

摘　　要：在干旱地区,终端湖面积变化受气候影响较大,同时湖泊面积变化对生态环境平衡和土地利用变化起着重要作用。基于Landsat和JRC Global Surface Water(JRC GSW)多源遥感数据、气象数据、土地利用数据和NDVI数据,分析了艾比湖水面面积变化及驱动因素,以及对艾比湖流域环境的影响。得出如下结论:2000—2020年艾比湖面积呈现先减少后增加的趋势,2010年左右为转折点;面积变化与降水量的相关性最大(R^(2)=0.589,P<0.01和R^(2)=0.519,P<0.05);流域内耕地面积增长最大,为3140 km^(2),占研究区总面积的6.23%;其次是草地面积增加1402 km^(2),占研究区总面积的2.78%;而面积减少最多的是未利用土地,为2974 km^(2),占总面积的5.90%,主要转化为草地和耕地;由NDVI变化可知,该流域内的植被主要由草地构成,并且草地高覆盖(>0.8)区呈现出增加趋势,集中在人类活动区。干旱区终端湖泊面积变化监测是生态环境保护研究的有益补充,为进一步保护以及恢复干旱区生态环境的方法提供理论基础。In arid regions,the change in terminal lake area is greatly affected by climate,and the change in lake area plays an important role in ecological environment balance and land use change.Based on multi-source remote sensing data of Landsat and JRC global surface water(JRC GSW),meteorological data,land-use data and NDVI,westudied the area change of Ebinur Lake and its driving factors,as well as the impacts on the environment of lake.The results indicated that the surface area of Ebinur Lake showed a trend of first decreasing and then increasing from 2000 to 2020 with turning point founded in around 2010.The correlation between the lake area change and precipitation was the greatest(R^(2)=0.589,P<0.01 and R^(2)=0.519,P<0.05).The largest increase in arable land area within the basin is 3140 km^(2),accounting for 6.23%of the total area,followed by an increase of 1402 km^(2)in grassland,taking up 2.78%of the total area.The area that has decreased the most is unused land,which is 2974 km^(2),accounting for 5.90%of the total area,mainly converted into grassland and arable land.The vegetation in the basin was dominated by grassland and an increasing trend was occurred in the high coverage region,which mainly concentrated in human activity region.Monitoring the changes in the area of terminal lakes in arid areas is a beneficial supplement to research on ecological environment protection,providing a theoretical basis for further protecting and restoring the ecological environment in arid areas.

关 键 词：艾比湖 JRC LANDSAT NDWI 土地利用 NDVI 

分 类 号：P208[天文地球—地图制图学与地理信息工程]