Remote sensing-based ecological quality change and driver analysis for nine counties of Xi-Hai-Gu area,Ningxia,China
In addressing the effectiveness of regional ecological governance,the construction of a Remote Sensing Ecological Index (RSEI )facilitates precise assessment.This study utilized long-term remote sensing imagery to establish the RSEI for the nine counties of the Western Haidong region from 1986 to 2021.It investigated the changing patterns of remote sensing ecological indicators in this area and analyzed the driving mechanisms of RSEI variations through trend analysis,variation analysis,and correlation analysis,integrating climate,land use,and population data.The findings indicate a warming and drying trend in the climate of the study area.The RSEI in the central arid zone is declining,with climate change being the primary influencing factor.The ecological quality in the southern mountainous areas remains stable and is gradually improving,with ecological migration exhibiting statistically significant effects.Over the past 30 years,there has been a reduction in grassland area,accompanied by proportional increases in arable land,forest land,and urban construction land.However,changes in land use patterns account for only about 5％ of the total changes and do not play a dominant role.The results are crucial for regional environmental management and fostering sustainable economic development.
Xi-Hai-Gu area of Ningxia Hui autonomous regionRSEIecological migrationclimate changeland use change
万方数据
维普
