Response of Vegetation Coverage to Changes of Precipitation and Temperature in Chinese Mainland

CHEN Huan; REN Zhi-yuan

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Response of Vegetation Coverage to Changes of Precipitation and Temperature in Chinese Mainland

- Response of Vegetation Coverage to Changes of Precipitation and Temperature in Chinese Mainland
- Bulletin of Soiland Water Conservation Vol. 32, Issue 2, Pages: 78-82(2013)
- 作者机构：
  
  陕西师范大学旅游与环境学院,陕西,西安,710062
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
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CHEN Huan, REN Zhi-yuan. Response of Vegetation Coverage to Changes of Precipitation and Temperature in Chinese Mainland[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 78-82.
DOI：

CHEN Huan, REN Zhi-yuan. Response of Vegetation Coverage to Changes of Precipitation and Temperature in Chinese Mainland[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 78-82. DOI：

摘要

应用GIMMS NDVI时间序列遥感数据集合中国大陆188个气象站的温度与降水资料

基于时滞互相关方法和GIS工具

利用中国生态地理区划图分析了中国大陆不同生态地理区植被NDVI的变化趋势及其与温度、降水年内变化的时滞响应及其空间特征。结果表明

1982-2000年中国大陆气温升高

降水量减少

NDVI呈现增加趋势。中温带和北亚热带植被NDVI略有减少

边缘热带、高原亚寒带和高原温带植被NDVI增加速度显著。植被NDVI与降水和温度之间有较显著的相关性。中国大陆植被NDVI对气温和降水有滞后效应

并且滞后水平存在着明显的空间差异。

Abstract

Climate changes affect the growth of vegetation and photosynthesis

which can be represented byNDVI change.It is therefore very important to investigate the relationship between NDVI and climate.NDVI values can be used to characterize earth surface conditions regarding vegetation coverage

growth

typeand other variables.The change of vegetation at Chinese mainland and its relationship with temperature andprecipitation were studied on different geographic ecological zones in China using time lag cross-correlationanalysis and GIS based on GIMMS NDVI data set along with temperature and precipitation data from 188stations in Chinese mainland.It was found that in general

the temperature of mainland China increased

theprecipitation was reduced

and the vegetation coverage increased from 1982to 2000.The NDVI values of thecold temperature zone

temperate zone

north subtropical and central asian tropical zone decreased while theNDVI values of the other five ecological geographic zones increased.There is a significant correlation between NDVI and precipitation and temperature.The NDVI values of mainland China showed substantiallyspatial variability in lagging behind the variations of precipitation and temperature.

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