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林业资源管理 ›› 2017, Vol. 0 ›› Issue (3): 31-34.doi: 10.13466/j.cnki.lyzygl.2017.03.007

• 科学研究 • 上一篇    下一篇

近10年我国荒漠化地区植被长势变化分析

刘旭升(), 孙涛   

  1. 国家林业局调查规划设计院,北京 100714
  • 收稿日期:2017-05-05 修回日期:2017-06-01 出版日期:2017-06-28 发布日期:2020-09-24
  • 作者简介:刘旭升(1974-),女,内蒙古商都人,高工,主要从事荒漠化沙化监测工作。Email:liuxush@163.com
  • 基金资助:
    国家林业局林业公益性行业项目(201204202)

Vegetation Growth Changes of the Desertificated Area in China over the Past Ten Years

LIU Xusheng(), SUN Tao   

  1. Academy of Forest Inventory & Planning,SFA,Beijing 100714,China
  • Received:2017-05-05 Revised:2017-06-01 Online:2017-06-28 Published:2020-09-24

摘要:

利用全国2005—2014近10年的MODIS遥感卫星数据,通过对最具代表性的归一化植被指数的提取,对我国荒漠化地区近10年的植被长势进行趋势分析。结果表明:我国荒漠化地区近10年植被长势整体呈现持续好转趋势;近5年(2010—2014年)植被指数均值0.26,较前5年(2005—2009年)增加5.4%;呼伦贝尔、内蒙古东部和中部植被长势向好,阿拉善高原和河西走廊、青海北部植被长势略显增加,新疆趋势平稳。

关键词: 植被长势, 归一化植被指数, 荒漠化, 遥感监测, 趋势分析

Abstract:

Land desertification has strong impact on eco-environment,ecological security and economic and social development.In addition,vegetation is regarded as one of the most important methods for land desertification control,so its growth analysis and changes detection become more and more important.In this article,MODIS,from 2005 to 2014,was used as the main data source to extract the NDVI(Normalized Differential Vegetation Index) for analyzing the trend of vegetation growth of desert areas in China over the past ten years.The results indicated that the vegetation growth showed a trend of continuous improvement in the desert regions of China in recent 10 years.The average NDVI in the period from 2010 to 2014 reached to 0.26,increasing 5.4% than that in the period from 2005 to 2009.The vegetation grew towards improvement in Hulun Buir,the middle and eastern part of Inner Mongolia and slightly increased in Alxa,Hexi Corridor and North Qinghai.The vegetation growth kept steady in Xinjiang region.

Key words: vegetation growth, NDVI, desertification, remote sensing monitoring, trend analysis

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