Time-dalayed Correlation Analysis Between Vegetation Cover Changes and Climatic Factors in Hanjiang River Basin

LI Xiao-yan

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Time-dalayed Correlation Analysis Between Vegetation Cover Changes and Climatic Factors in Hanjiang River Basin

- Time-dalayed Correlation Analysis Between Vegetation Cover Changes and Climatic Factors in Hanjiang River Basin
- Bulletin of Soiland Water Conservation Vol. 32, Issue 4, Pages: 268-270(2013)
- 作者机构：
  
  陕西理工学院历史文化与旅游学院,陕西,汉中,723000
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- Published：2013
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LI Xiao-yan. Time-dalayed Correlation Analysis Between Vegetation Cover Changes and Climatic Factors in Hanjiang River Basin[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 268-270.
DOI：

LI Xiao-yan. Time-dalayed Correlation Analysis Between Vegetation Cover Changes and Climatic Factors in Hanjiang River Basin[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 268-270. DOI：

摘要

对汉江流域主要类型植被覆盖变化及与主要气候要素的相关程度时滞进行了分析。结果表明:(1)汉江流域植被覆盖具有相对一致性和差异性的特点。人类活动对植被覆盖变化影响较大。(2)NDVI与气温的相关程度较与降水强

农耕区植被对气温和降水的依赖性较弱。(3)NDVI对气温和降水的滞后时间存在明显的时空差异。

Abstract

Correlation analysis were taken on vegetation coverage changes of the main vegetation types and the main climatic factors in Hanjiang River Basin and indicated that:(1)Vegetation coverage changes in Hanjiang River Basin were of relative consistency with deep influence of the human activities;(2)The NDVI correlation with air temperature was bigger than that with precipitation and the human activities weakened the vegetation's dependency on the air temperature and the precipitation in farming areas;(3)There is significant difference for lagtime between NDVI and dimatic factors.

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