Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

XU Weixin; LIU Xiaodong

doi:10.1007/s11769-007-0151-5

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Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

XU Weixin, LIU Xiaodong

文章导航 > Chinese Geographical Science > 2007 > 17(2): 151-159

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. 中国地理科学, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

引用本文:

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. 中国地理科学, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. Chinese Geographical Science, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

Citation:

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. Chinese Geographical Science, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

doi: 10.1007/s11769-007-0151-5

XU Weixin^1,2,3,,
LIU Xiaodong¹

1.
Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.
Meteorological Institute of Qinghai Province, Xining 810001, China;
3.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China

基金项目: Under the auspices of the National Natural Science Foundation of China (No.40599424,No.40472086,No.40121303),National Basic Research Program of China (No.2004CB720208)

详细信息

通讯作者:
XU Weixin.E-mail:Weixin.Xu@163.com

Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

XU Weixin^{1,2,3
,},
LIU Xiaodong¹

1.
Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.
Meteorological Institute of Qinghai Province, Xining 810001, China;
3.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China

摘要: Using satellite-observed Normalized Difference Vegetation Index (NDVI) dada and station-observed surface air temperature anomalies for the Northern Hemisphere (NH), we analyze the spatio-temporal characteristics of vege-tation variations in the Qinghai-Tibet Plateau and their correlations with global warming from 1982 to 2002. It is found that the late spring and early summer (May-June) are the months with the strongest responses of vegetation to global warming. Based on the Rotated Empirical Orthogonal Function (REOF) method, the study shows that the first REOF spatial pattern of average NDVI for May-June reveals the northern and southern zones with great inter-annual variations of vegetation, the northern zone from the eastern Kunlun Mountains to the southwestern Qilian Mountain and southern zone from the northern edge of the Himalayas eastward to the Hengduan Mountains. The vegetation, especially grassland, in the two zones increases significantly with global warming, with a correlation coefficient of 0.71 between the first REOF of May–June vegetation and the April–May surface air temperature anomaly in the NH during 1982–2002. A long-term increasing trend in May–June vegetation for the plateau region as a whole is also attributed mainly to global warming although there are considerable regional differences. The areas with low NDVI (grassland and shrubland) usually respond more evidently to global warming, especially since the 1990s, than those with moderate or high NDVI values.
- NDVI /
- REOF /
- global warming /
- vegetation /
- Qinghai-Tibet Plateau
Abstract: Using satellite-observed Normalized Difference Vegetation Index (NDVI) dada and station-observed surface air temperature anomalies for the Northern Hemisphere (NH), we analyze the spatio-temporal characteristics of vege-tation variations in the Qinghai-Tibet Plateau and their correlations with global warming from 1982 to 2002. It is found that the late spring and early summer (May-June) are the months with the strongest responses of vegetation to global warming. Based on the Rotated Empirical Orthogonal Function (REOF) method, the study shows that the first REOF spatial pattern of average NDVI for May-June reveals the northern and southern zones with great inter-annual variations of vegetation, the northern zone from the eastern Kunlun Mountains to the southwestern Qilian Mountain and southern zone from the northern edge of the Himalayas eastward to the Hengduan Mountains. The vegetation, especially grassland, in the two zones increases significantly with global warming, with a correlation coefficient of 0.71 between the first REOF of May–June vegetation and the April–May surface air temperature anomaly in the NH during 1982–2002. A long-term increasing trend in May–June vegetation for the plateau region as a whole is also attributed mainly to global warming although there are considerable regional differences. The areas with low NDVI (grassland and shrubland) usually respond more evidently to global warming, especially since the 1990s, than those with moderate or high NDVI values.
- NDVI /
- REOF /
- global warming /
- vegetation /
- Qinghai-Tibet Plateau

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Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

doi: 10.1007/s11769-007-0151-5

XU Weixin^1,2,3,,
LIU Xiaodong¹

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;

2. Meteorological Institute of Qinghai Province, Xining 810001, China;

3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

基金项目: Under the auspices of the National Natural Science Foundation of China (No.40599424,No.40472086,No.40121303),National Basic Research Program of China (No.2004CB720208)

通讯作者: XU Weixin.E-mail:Weixin.Xu@163.com

收稿日期: 2006-09-06
修回日期: 2007-02-28
刊出日期: 2007-06-20

关键词:

NDVI /

REOF /

global warming /

vegetation /

Qinghai-Tibet Plateau

摘要: Using satellite-observed Normalized Difference Vegetation Index (NDVI) dada and station-observed surface air temperature anomalies for the Northern Hemisphere (NH), we analyze the spatio-temporal characteristics of vege-tation variations in the Qinghai-Tibet Plateau and their correlations with global warming from 1982 to 2002. It is found that the late spring and early summer (May-June) are the months with the strongest responses of vegetation to global warming. Based on the Rotated Empirical Orthogonal Function (REOF) method, the study shows that the first REOF spatial pattern of average NDVI for May-June reveals the northern and southern zones with great inter-annual variations of vegetation, the northern zone from the eastern Kunlun Mountains to the southwestern Qilian Mountain and southern zone from the northern edge of the Himalayas eastward to the Hengduan Mountains. The vegetation, especially grassland, in the two zones increases significantly with global warming, with a correlation coefficient of 0.71 between the first REOF of May–June vegetation and the April–May surface air temperature anomaly in the NH during 1982–2002. A long-term increasing trend in May–June vegetation for the plateau region as a whole is also attributed mainly to global warming although there are considerable regional differences. The areas with low NDVI (grassland and shrubland) usually respond more evidently to global warming, especially since the 1990s, than those with moderate or high NDVI values.

English Abstract

Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

XU Weixin^1,2,3,,
LIU Xiaodong¹

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;

2. Meteorological Institute of Qinghai Province, Xining 810001, China;

3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2006-09-06
Rev Recd Date: 2007-02-28
Publish Date: 2007-06-20

Keywords:

Abstract: Using satellite-observed Normalized Difference Vegetation Index (NDVI) dada and station-observed surface air temperature anomalies for the Northern Hemisphere (NH), we analyze the spatio-temporal characteristics of vege-tation variations in the Qinghai-Tibet Plateau and their correlations with global warming from 1982 to 2002. It is found that the late spring and early summer (May-June) are the months with the strongest responses of vegetation to global warming. Based on the Rotated Empirical Orthogonal Function (REOF) method, the study shows that the first REOF spatial pattern of average NDVI for May-June reveals the northern and southern zones with great inter-annual variations of vegetation, the northern zone from the eastern Kunlun Mountains to the southwestern Qilian Mountain and southern zone from the northern edge of the Himalayas eastward to the Hengduan Mountains. The vegetation, especially grassland, in the two zones increases significantly with global warming, with a correlation coefficient of 0.71 between the first REOF of May–June vegetation and the April–May surface air temperature anomaly in the NH during 1982–2002. A long-term increasing trend in May–June vegetation for the plateau region as a whole is also attributed mainly to global warming although there are considerable regional differences. The areas with low NDVI (grassland and shrubland) usually respond more evidently to global warming, especially since the 1990s, than those with moderate or high NDVI values.

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. 中国地理科学, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

引用本文:

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. 中国地理科学, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. Chinese Geographical Science, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

Citation:

XU Weixin, LIU Xiaodong. Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming[J]. Chinese Geographical Science, 2007, 17(2): 151-159. doi: 10.1007/s11769-007-0151-5

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Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

doi: 10.1007/s11769-007-0151-5

通讯作者: XU Weixin.E-mail:Weixin.Xu@163.com

Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

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Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

doi: 10.1007/s11769-007-0151-5

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China; 2. Meteorological Institute of Qinghai Province, Xining 810001, China; 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

通讯作者: XU Weixin.E-mail:Weixin.Xu@163.com

English Abstract

Response of Vegetation in the Qinghai-Tibet Plateau to Global Warming

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China; 2. Meteorological Institute of Qinghai Province, Xining 810001, China; 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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目录

通讯作者:
XU Weixin.E-mail:Weixin.Xu@163.com

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;

2. Meteorological Institute of Qinghai Province, Xining 810001, China;

3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

1. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;

2. Meteorological Institute of Qinghai Province, Xining 810001, China;

3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China