Evolution of Desertification Types on the North Shore of Qinghai Lake

作     者：Wenzheng Yu Jintao Cui Yang Gao Mingxuan Zhu Li Shao Yanbo Shen Xiaozhao Zhang Chen Guo Hanxiaoya Zhang 

作者机构：School of Geographical SciencesNanjing University of Information Science&TechnologyNanjing210044China College of Hydrology and Water ResourcesHohai UniversityNanjing210098China 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 China Huaneng Group Co.Ltd.Beijing100036China China Huaneng Group Cleaning Energy Technology Academy Co.Ltd.100081China 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71卷第5期

页      面：3635-3646页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

基　　金：This research was supported by the National Nature&Science Foundation of China“Study on the dynamic mechanism of grassland ecosystem response to climate change in Qinghai Plateau”(No.U20A2098) the second Tibetan plateau scientific expedition and research program(STEP,No.2019QZKK0804) China Huaneng Group Co.Science and Technology Program“The research development and implement on the evaluation technology of wind resource”(No.HNKJ18-H31) 

主　　题：Qinghai Lake desertification evolution mechanism remote sensing 

摘      要：Land desertification is a widely concerned ecological environment *** the evolution trend of desertification types is of great significance to prevent and control land *** this study,we applied the decision tree classification method,to study the land area and temporal and spatial change law of different types of desertification in the North Bank of Qinghai Lake area from 1987 to 2014,based on the current land use situation and TM remote sensing image data of Haiyan County,Qinghai Province,The results show that the area of mild desertification land and moderate desertification land in the study area has decreased,while the area of severe desertification land and extreme desertification land has increased significantly in the past 30 *** area of desertification land decreased by 4.02 km2,of which the area of mild and moderate desertification land decreased by 39.73 km2 and 36.8 km2 respectively,and the area of severe and extreme desertification land increased by 32.78 km2 and 39.73 km2 *** for the mutual transformation relationship,the transformation from severe desertification land to extreme desertification land is the main,and the junction of severe desertification land and extreme desertification land is the sensitive area of *** the north shore of Qinghai Lake,the sandy land tends to expand *** research provides reference basis for local land desertification monitoring,and has a great guidance for local effective land desertification and soil and water conservation.