Study on the Landcover Changes Based on GIS and RS Technologies: A Case Study of the Sanjiangyuan National Nature Reserve in the Hinterland Tibet Plateau, China  

作　　者：Renjie Zhao Qingsong Du Renjie Zhao;Qingsong Du(School of Economics and Management, Northwest University, Xi’an, China;University of Chinese Academy of Sciences, Beijing, China)

机构地区：[1]School of Economics and Management, Northwest University, Xi’an, China [2]University of Chinese Academy of Sciences, Beijing, China

出　　处：《Journal of Geoscience and Environment Protection》2022年第1期140-150,共11页地球科学和环境保护期刊（英文）

摘　　要：<div style="text-align:justify;"> With global warming and increased human activity, more and more ground surface areas have been affected, which leads to the creation of many problems. To understand the ecological environment changes in a typical alpine region, information on landcovers changes in the study area from 2000 to 2020 was obtained by combining remote sensing, geographic information system, and traditional statistical analysis for the Sanjiangyuan National Nature Reserve on the Qinghai-Tibet Plateau, China. The results show that the changes of surface cover in Sanjiangyuan National Nature Reserve are relatively concentrated, mainly distributed in the sections of south, northwest, central, and northeast, with the area of the changed regions and the unchanged regions being 31,127.45 km² and 271,941.37 km², respectively. The transformation between the various types of ground landcover is mainly characterized by a shift from other types to grassland and from grassland to bare land. And the regions of change are mostly concentrated between 3500 - 4600 m in elevation. <div style="text-align:justify;"> With global warming and increased human activity, more and more ground surface areas have been affected, which leads to the creation of many problems. To understand the ecological environment changes in a typical alpine region, information on landcovers changes in the study area from 2000 to 2020 was obtained by combining remote sensing, geographic information system, and traditional statistical analysis for the Sanjiangyuan National Nature Reserve on the Qinghai-Tibet Plateau, China. The results show that the changes of surface cover in Sanjiangyuan National Nature Reserve are relatively concentrated, mainly distributed in the sections of south, northwest, central, and northeast, with the area of the changed regions and the unchanged regions being 31,127.45 km² and 271,941.37 km², respectively. The transformation between the various types of ground landcover is mainly characterized by a shift from other types to grassland and from grassland to bare land. And the regions of change are mostly concentrated between 3500 - 4600 m in elevation.

关 键 词：Sanjiangyuan National Nature Reserve (SNNR) Alpine Region Qinghai-Tibet Plateau (QTP) Landcover Change GIS and RS 

分 类 号：S81[农业科学—畜牧学]