Classification of Desertification on the North Bank of Qinghai Lake

作     者：Wenzheng Yu Xin Yao Li Shao Jing Liu Yanbo Shen Hanxiaoya Zhang 

作者机构：School of Geographical SciencesNanjing University of Information Science&TechnologyNanjing210044China School of Environmental Science&EngineeringNanjing University of Information Science&TechnologyNanjing210044China Public Meteorological Service CenterChina Meteorological AdministrationBeijing100081China Center for Wind and Solar Energy ResourcesChina Meteorological AdministrationBeijing100081China Faculty of ScienceThe University of Auckland1010New Zealand 

出 版 物：《Computers, Materials & Continua》 (计算机、材料和连续体（英文）)

年 卷 期：2022年第72卷第7期

页      面：695-711页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China“Study on the dynamic mechanism of grassland ecosystem response to climate change in Qinghai Plateau”under grant number U20A2098 the Second Tibet Plateau Scientific Expedition and Research Program(STEP)under grant number 2019QZKK0804 

主　　题：Remote sensing Qinghai Lake desertification classification 

摘      要：In this paper,RS,GIS and GPS technologies are used to interpret the remote sensing images of the north shore of Qinghai Lake from 1987 to 2014 according to the inversion results of vegetation coverage(FVC),albedo,land surface temperature(LST),soil moisture(WET)and other major parameters after image preprocessing,such as radiometric correction,geometric correction and atmospheric *** this basis,the decision tree classification method based on landsat8 remote sensing image is used to classify the desertification land in this area,and the development and change of desertification in this period are *** results show that the fluctuation of desertification land area in this area increased during the study period,but from 2003 to 2014,the land area of mild desertification,moderate desertification and severe desertification landwere respectively decreased 0.92,145.89 and 29.39 km2,while the area of serious desertification land still has a slow increasing *** the driving force of desertification change trend in this area is caused by human factors or global change needs to be further studied.