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

Zhang Zhiwei; Yin Huiyan; Xue Jie; Yu Bo; Han Jiahua; Jiang Youwei

doi:10.13961/j.cnki.stbctb.2021.06.047

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

- Desert Classification of Chengguan District of Lhasa City Based on GIS Technology
- Bulletin of Soiland Water Conservation Vol. 41, Issue 6, Pages: 369-375(2021)
- 作者机构：
  
  1. 西藏农牧学院资源与环境学院,西藏,林芝,860000
  2. 西藏高原森林生态教育部重点实验室(西藏农牧学院),西藏,林芝,860000
  3. 中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室,新疆,乌鲁木齐,830011
  4. 新疆策勒荒漠草地生态系统国家野外科学观测研究站, 新疆策勒,848300
  5. 新疆农业大学水利与土木工程学院,新疆,乌鲁木齐,830052
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.06.047
  CLC： P941.74
- Published：2021
- 稿件说明：
移动端阅览
Zhang Zhiwei, Yin Huiyan, Xue Jie, et al. Desert Classification of Chengguan District of Lhasa City Based on GIS Technology[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 369-375.
DOI：

Zhang Zhiwei, Yin Huiyan, Xue Jie, et al. Desert Classification of Chengguan District of Lhasa City Based on GIS Technology[J]. Bulletin of Soiland Water Conservation, 2021, 41(6): 369-375. DOI： 10.13961/j.cnki.stbctb.2021.06.047.

摘要

[目的] 尝试在青藏高原县级尺度上对荒漠化区域进行划分，并分析不同荒漠类型的分布特征，为荒漠区划及荒漠化防治工作提供科学依据。[方法] 以西藏自治区拉萨市城关区为例，利用2018年的TM遥感影像，2000—2018年的MODIS影像数据，结合GIS制图技术，通过长期野外调查，探讨高寒区荒漠分类系统。[结果] 在分析荒漠形成主要影响因素的基础上，提出荒漠分类的主要原则和划分指标。利用气候区划、地表物质组成、地貌形态及成因、植被盖度等指标，将拉萨市城关区荒漠划分为2个Ⅰ级类型，7个Ⅱ级类型，18个Ⅲ级类型，31个Ⅳ级类型，并确定各级各类荒漠的面积及空间分布范围。[结论] 确定了高寒区荒漠分类的指标，对城关区的荒漠区域进行分级分类。初步建立了西藏高寒地区的荒漠分类体系，奠定了青藏高原高寒区荒漠分类研究的基础。

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.

关键词

Keywords

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