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遥感技术与应用  2010, Vol. 25 Issue (1): 84-90    DOI: 10.11873/j.issn.1004-0323.2010.1.84
研究与应用     
近10a新疆地区植被动态与R/S分析
王桂钢1,2,周可法1,孙 莉1,秦艳芳1,2,李雪梅1,2
1.中国科学院新疆生态与地理研究所,新疆 乌鲁木齐 830011; 2.中国科学院研究生院,北京 100049
Study on the Vegetation Dynamic Change and R/S Analysis in the Past Ten Years in Xinjiang
WANG Gui-gang1,2,ZHOU Ke-fa1,SUN  Li1,QIN Yan-fang1,2,LI Xue-mei1,2
1.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China
 全文: PDF(2547 KB)  
摘要:

利用SPOT VGT传感器的NDVI时序数据,采用时间序列谐波分析算法(HANTS)对NDVI数据进行去云预处理,基于趋势分析、Hurst指数分析等方法,研究了1999~2008年新疆植被覆盖的时空变化,分析了Hurst指数的空间分布规律及其在不同土地覆盖类型下的差异。结果表明:近10 a来,新疆植被总体呈现不显著的增加趋势且具有明显的空间差异性。R/S分析表明,新疆大部分地区植被变化将保持现在的趋势,局部地区具有反持续性。各土地覆盖类型Hurst指数均在0.63以上,沙漠、戈壁、裸地的Hurst指数明显高于其它土地覆盖类型,受人类活动影响较大的土地覆盖类型其Hurst指数较低,可持续性低于自然或半自然状态下的植被覆盖类型。

关键词: NDVI时序数据R/S分析植被覆被变化    
Abstract:

Vegetation change is a hot spot of global change research.Using the SPOT VGT NDVI time series data sets,comprehensive utilization of RS and GIS technology,based on trend analysis,HURST index analysis and other methods,the temporal and spatial vegetation cover changes from 1999 to 2007 in Xinjiang were analyzed and the spatial distribution of HURST index and HURST index differences in land\|use types were explored in this paper.The results show that:an increasing trend of vegetation which is not significant in the past decade is detected in Xinjiang.And changes in vegetation cover in most parts of Xinjiang would maintain the current trend.And the time series in local area is anti\|sustainability.While the mean of HURST indices of NDVI time series in various land\|use types is above 0.65,and the HURST indices in desert,Gobi,and bare land are significantly higher than other land cover types,the HURST indices of NDVI time series in the land\|use types affected by human activities are generally low,which sustainability were lower than that of natural or semi\|natural vegetation cover types.

Key words: NDVI time series    R/S analysis    Vegetation cover change
收稿日期: 2009-03-21 出版日期: 2011-11-04
基金资助:

国家自然科学青年基金项目(40601103)、国家自然科学基金项目(40871204)共同资助。

通讯作者: 周可法(1972-) E-mail:zhkf@ ms.xjb.ac.cn   
作者简介: 王桂钢(1985-),男,硕士研究生,主要从事遥感与GIS应用研究。E-mail:guigangwang@sina.com。
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引用本文:

王桂钢, 周可法, 孙莉, 秦艳芳, 李雪梅. 近10a新疆地区植被动态与R/S分析[J]. 遥感技术与应用, 2010, 25(1): 84-90.

WANG Gui-gang, ZHOU Ke-fa, SUN Li, QIN Yan-fang, LI Xue-mei. Study on the Vegetation Dynamic Change and R/S Analysis in the Past Ten Years in Xinjiang. Remote Sensing Technology and Application, 2010, 25(1): 84-90.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2010.1.84        http://www.rsta.ac.cn/CN/Y2010/V25/I1/84

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