Desert Classification of Chengguan District of Lhasa City Based on GIS Technology

doi:10.13961/j.cnki.stbctb.2021.06.047

Home > Archive>Volume 41, Issue 6, 2021 >369-375. DOI:10.13961/j.cnki.stbctb.2021.06.047

Desert Classification of Chengguan District of Lhasa City Based on GIS Technology
DOI:
                        10.13961/j.cnki.stbctb.2021.06.047
                    
Author:
                        Zhang ZhiweiZhang Zhiwei
Resources & Enviroment College, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet 860000, China;Key Laboratory of Forest Ecology in Tibet Plateau (Tibet Agricultural & Animal Husbandry University), Ministry of Education Nyingchi 860000, China
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Yin HuiyanYin Huiyan
Resources & Enviroment College, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet 860000, China;Key Laboratory of Forest Ecology in Tibet Plateau (Tibet Agricultural & Animal Husbandry University), Ministry of Education Nyingchi 860000, China
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Xue JieXue Jie
State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China;Qira National Field Station for Desert Steppe Ecosystem Observation and Research, Qira, Xinjiang 848300, China
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Yu BoYu Bo
Resources & Enviroment College, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet 860000, China;Key Laboratory of Forest Ecology in Tibet Plateau (Tibet Agricultural & Animal Husbandry University), Ministry of Education Nyingchi 860000, China
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Han JiahuaHan Jiahua
Resources & Enviroment College, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet 860000, China;Key Laboratory of Forest Ecology in Tibet Plateau (Tibet Agricultural & Animal Husbandry University), Ministry of Education Nyingchi 860000, China
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Jiang YouweiJiang Youwei
College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China
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Clc Number:P941.74
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Abstract:

[Objective] In order to provide scientific basis for desert regionalization and desertification control, this paper tries to classify desertification areas on the county scale of the Qinghai-Tibet Plateau and analyze the distribution and characteristics of different desert types.[Methods] Based on TM images from 2018, MODIS images from 2000 to 2018, combined with GIS mapping technology and long-term field investigation, the study selected Chengguan District of Lhasa City as a case to explore the desert classification system in the alpine region.[Results] According to the main influencing factors of desert formation, the main principles and indexes of desert classification were put forward. Based on the indexes of climate regionalization, surface material composition, geomorphic morphology, and vegetation coverage, the desert in the Chengguan District of Lhasa City was divided into 2 first-level types, 7 second-level types, 18 third-level types, and 31 fourth-level types, and the area and spatial distribution of each desert type were determined.[Conclusion] This study determines the index of desert classification, and classifies the desert area of the Chengguan District. The desert classification system in the Qinghai-Tibet Plateau is preliminarily established, which is the basis for the alpine classification research in the Qinghai-Tibet Plateau.

Key words:Qinghai-Tibet Plateau;desert;classification system;Lhasa City;GIS technology

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张志伟,尹惠妍,薛杰,余波,韩嘉华,姜有为.基于GIS技术的拉萨市城关区荒漠分类研究[J].水土保持通报英文版,2021,41(6):369-375

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Received:May 25,2021
Revised:July 20,2021
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Online: January 06,2022
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