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干旱区地理 ›› 2018, Vol. 41 ›› Issue (6): 1333-1340.doi: 10.12118/j.issn.1000-6060.2018.06.21

• 地球信息科学 • 上一篇    下一篇

近40 a新疆土地利用及其绿洲动态变化

贺可1,2, 吴世新1, 杨怡1,2, 王丹1,2, 张寿雨1,2, 尹楠1   

  1. 1 中国科学院新疆生态与地理研究所, 新疆 乌鲁木齐 830011;
    2 中国科学院大学, 北京 100049
  • 收稿日期:2018-07-08 修回日期:2018-09-28 出版日期:2018-11-25
  • 通讯作者: 吴世新.E-mail:wushixin@ms.xjb.ac.cn
  • 作者简介:贺可(1993-),女,硕士研究生,研究方向为遥感应用.E-mail:heke_ke@163.com
  • 基金资助:
    国家科技基础资源调查专项课题(2017FY101004)资助

Dynamic changes of land use and oasis in Xinjiang in the last 40 years

HE Ke1,2, WU Shi-xin1, YANG Yi1,2, WANG Dan1,2, ZHANG Shou-yu1,2, YIN Nan1   

  1. 1 Laboratory of LUCC and Global Change, Xinjiang Institute of Ecology and Geography, Chinese Academy of Science, Urumqi 830011, Xinjiang, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-07-08 Revised:2018-09-28 Online:2018-11-25

摘要: 利用1972-2015年Landsat MSS/TM/OLI以及CBERS遥感影像数据,得到近40 a新疆土地利用时空数据,综合分析新疆土地利用及其绿洲的动态变化与动因。结果表明:新疆土地不断开垦、耕地面积不断扩大,已达到了相当的数量规模;土地的开垦与撂荒成为新疆乃至我国西北干旱地区土地利用变化最重要的特征,耕地撂荒与土地开垦的比率逐期下降,土地利用效率不断提高;城镇居民建设用地持续扩大;近40 a里,绿洲面积逐步扩大,面积占比由8.18%上升到9.93%;人工绿洲面积及占比也逐步增大,目前一半以上的绿洲面积为人工绿洲。气候的暖湿变化,以及政策、人口、社会经济、科技等要素成为新疆土地利用变化的动因。本文还提出了在关注各类土地数量变化的同时进一步开展土地开发的质量变化与评估研究。

关键词: 土地利用, 绿洲, 动态变化, 新疆

Abstract: In this study,a comprehensive analysis on the dynamic change and its causes of the land use and oasis was conducted based on the spatio-temporal data of land use in Xinjiang,China obtained by using the remotely sensed data from Landsat MSS/TM/OLI and CBERS in the past 40 years from 1972 to 2015.The results indicated that the cultivation area in Xinjiang had been constantly expanding as result of land reclamation,which had reached a considerable quantity; the land reclamation and some of the cultivated land left uncultivated become the most important feature of the land use in Xinjiang and even in northwest arid area of China.The ratio of the land left uncultivated against the land reclaimed was gradually being decreased,translating into a continuously improving efficiency of land use;the construction land of urban residents has been expanded continuously.The area of oasis has gradually been expanded with its occupation rate being increased from 8.18% to 9.93%.The area of artificial oasis and its proportion have also been increased gradually.At present,more than half of the oasis area is the artificial oasis.The warm and wet climate changes,as well as the policies,population,social economy,science and technology and other factors have become the motivation of the change of land use in Xinjiang.This paper also puts forward the research on the quality change and evaluation of land development while paying attention to the change of land quantity.

Key words: land use, oasis, dynamic change, Xinjiang

中图分类号: 

  • TP79