西藏自治区土地利用/覆被变化时空演变特征及驱动因素

陈伊多; 杨庆媛

doi:10.13870/j.cnki.stbcxb.2022.05.023

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西藏自治区土地利用/覆被变化时空演变特征及驱动因素

更新时间：2025-03-12

- 西藏自治区土地利用/覆被变化时空演变特征及驱动因素
- Temporal and Spatial Characteristics and Driving Factors of Land Use/Cover Change in Tibet Autonomous Region
- 水土保持学报 2022年36卷第5期页码：173-180
- 作者机构：
  
  1. 西南大学地理科学学院, 重庆金佛山喀斯特生态系统国家野外科学观测研究站,重庆,400715
  2. 西部乡村可持续发展实验室,重庆,400715
- 作者简介：
  
  [ "陈伊多(1992-),男,硕士研究生,主要从事土地利用与国土空间规划研究。E-mail:513dyc@163.com" ]
- 基金信息：
  
  重庆市社会科学规划项目(2020YBZX15)
- DOI：10.13870/j.cnki.stbcxb.2022.05.023
  中图分类号： F323.21
- 纸质出版：2022
- 稿件说明：
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陈伊多, 杨庆媛. 西藏自治区土地利用/覆被变化时空演变特征及驱动因素[J]. 水土保持学报, 2022,36(5):173-180.

CHEN Yiduo, YANG Qingyuan. Temporal and Spatial Characteristics and Driving Factors of Land Use/Cover Change in Tibet Autonomous Region[J]. 2022, 36(5): 173-180.
陈伊多, 杨庆媛. 西藏自治区土地利用/覆被变化时空演变特征及驱动因素[J]. 水土保持学报, 2022,36(5):173-180. DOI： 10.13870/j.cnki.stbcxb.2022.05.023.

CHEN Yiduo, YANG Qingyuan. Temporal and Spatial Characteristics and Driving Factors of Land Use/Cover Change in Tibet Autonomous Region[J]. 2022, 36(5): 173-180. DOI： 10.13870/j.cnki.stbcxb.2022.05.023.

摘要

精准把握西藏自治区土地利用/覆被变化特征

探究其驱动因素

对科学预测西藏土地利用变化趋势、节约集约利用土地资源具有重要意义。以2000—2020年5期LUCC数据为基础

从动态度、转化趋势等方面分析西藏自治区LUCC特征。结果表明:(1)研究区LUCC以草地、林地、未利用地为主

时间上2015-2020年变化频率最高

空间上城乡建设用地、耕地及水域用地变化区域较为集中。(2)城乡建设用地持续增长

草地持续缩减

其余地类波动式增长。(3)一江三河流域LUCC种类丰富

成因复杂

其余地区以草地和未利用地变化为主。(4)过去20年间西藏LUCC驱动因素较多

自然因素对耕地、水域的分布等起决定性作用

而社会经济及政策因素对西藏近年来的LUCC起较大影响作用。研究发现

西藏土地利用类型转换复杂

各地类变化特征存在显著差异

其中变化量最大的是草地与未利用土地的相互转换。西藏LUCC的驱动因素较为复杂

气候变化和人类活动对研究区土地利用变化驱动作用显著。

Abstract

Accurately understanding the characteristics of land use / cover change (LUCC) in Tibet Autonomous Region and exploring its driving factors are of great significance to scientifically predict the trend of land use change in Tibet and make economical and intensive use of land resources. Based on the five periods of LUCC data from 2000 to 2020

this paper analyzed the characteristics of LUCC in Tibet Autonomous Region from dynamics and transformation trend. The results showed that: (1) LUCC in the study area was mainly grassland

forest land and unused land. The change frequency was the highest from 2015 to 2020

and the change areas of urban and rural construction land

cultivated land and water area were relatively concentrated in space. (2) Urban and rural construction land continued to grow

grassland continued to shrink

and other land types increased in a fluctuating manner. (3) LUCC in the "One River and Three Streams" Basin of Tibet were rich in species and complex in causes. The rest of the areas were dominated by grassland and unused land changes. (4) Over the past 20 years

there have been many driving factors for LUCC in Tibet. Natural factors played a decisive role in the distribution of cultivated land and water areas

while socio-economic and policy factors had a great impact on LUCC in Tibet in recent years. The transformation of land use types was complex

and there were significant differences in the change characteristics of different types

among which the biggest change was the transformation between grassland and unused land. The driving factors of LUCC in Tibet were complex. Climate change and human activities had a significant driving effect on land use changes in the study area.

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