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林业资源管理 ›› 2019›› Issue (5): 12-17.doi: 10.13466/j.cnki.lyzygl.2019.05.003

• 综合管理 • 上一篇    下一篇

我国沙化土地现状及动态变化研究

李芹芳(), 潘悦, 周森林   

  1. 长安大学 地球科学与资源学院,西安 710000
  • 收稿日期:2019-08-26 修回日期:2019-10-17 出版日期:2019-10-28 发布日期:2020-09-18
  • 作者简介:李芹芳(1963-),女,陕西渭南人,教授,主要从事土地管理、土地利用等方面的研究。Email: 493999796@qq.com
  • 基金资助:
    陕西省土地整治重点实验室开放基金项目“土地沙化土体有机重构结构研究”(2018-JC07)

Study on Current Status and Dynamics of Land Prone to Desertification in China

LI Qinfang(), PAN Yue, ZHOU Senlin   

  1. College of Geosciences and Resources,Chang'an University,Xi'an 710054,China
  • Received:2019-08-26 Revised:2019-10-17 Online:2019-10-28 Published:2020-09-18

摘要:

依据1994—2014全国沙漠化和沙化监测数据,归纳总结近20年来我国沙化土地现状及动态变化情况,结果表明:1)我国沙化土地面积总体呈下降趋势,从1994年172.89万km2减少到2014年172.12万km2;2)沙化土地主要分布于新疆、内蒙古、西藏、青海和甘肃等5个典型省(自治区);3)沙化类型以戈壁、流动沙地、固定沙地为主;4)沙化程度由极重度沙化逐渐向重度、中度沙化发展,中度沙化向轻度沙化发展。同时,分析了我国沙化土地动态变化成因,并提出了针对性的治理对策。

关键词: 沙化土地, 现状, 动态变化, 成因, 对策

Abstract:

Based on the national desertification and desertification monitoring data from 1994 to 2014,this paper summarizes the current status and dynamic changes of land prone to desertification in China in the past 20 years,research results:① the desertification land area in China is generally declining,from 1.7289 million km2 in 1994 to 1.7212 million km2 in 2014;②desertified land is mainly distributed in five typical provinces(autonomous regions) of Xinjiang,Uygur Autonomous Region,Inner Mongolia,Tibet,Qinghai,Gansu;③the desertification types are mainly gobi,flowing sand and fixed sand;④the degree of desertification gradually changed from very severe desertification to severe,moderate desertification,and moderate desertification to light desertification.At the same time,the reasons for the change of desertification land area in China are analyzed,and the targeted countermeasures are proposed.

Key words: desertification land, current situation, dynamic, reasons, measure

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