IGSNRR OpenIR
Detecting Effects of the Recent Drought on Vegetation in Southwestern China
Zhang Jinghua; Jiang Luguang; Feng Zhiming; Li Peng
2012
Source PublicationJournal of Resources and Ecology
ISSN1674-764X
Volume3Issue:1Pages:43
AbstractThe severest drought on record occurred in southwestern China from September 2009 until March 2010. In order to measure the impact the drought imposed on vegetation, we developed an evaluation indicator called the Vegetation Index Anomaly (VIA) based on MODIS/EVI. The tempo- spatial pattern of this impact was analyzed. Given that this impact may be modulated by many factors, the responses of different vegetation types (woodland, grassland and cropland), and the spatial pattern of meteorological drought were also analyzed. Results show that more than 50% of vegetation suffered because of this drought event, but there was significant tempo-spatial variability in the range and intensity of impact. This variability may be caused by many factors. Of the three major vegetation types, cropland was the most sensitive to drought, followed by grassland and then woodland. In addition, meteorological factors (precipitation and air temperature) also played a role; however, obvious differences exist between the spatial distribution pattern of drought-stricken vegetation and that of meteorological drought, which further demonstrates the intervention of other factors besides meteorological factors. So compared to meteorological drought, the vegetation index may be more useful for measuring the actual intensity, duration and impact of drought events. The limitations of vegetation indices are also considered.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/125606
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Zhang Jinghua,Jiang Luguang,Feng Zhiming,et al. Detecting Effects of the Recent Drought on Vegetation in Southwestern China[J]. Journal of Resources and Ecology,2012,3(1):43.
APA Zhang Jinghua,Jiang Luguang,Feng Zhiming,&Li Peng.(2012).Detecting Effects of the Recent Drought on Vegetation in Southwestern China.Journal of Resources and Ecology,3(1),43.
MLA Zhang Jinghua,et al."Detecting Effects of the Recent Drought on Vegetation in Southwestern China".Journal of Resources and Ecology 3.1(2012):43.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang Jinghua]'s Articles
[Jiang Luguang]'s Articles
[Feng Zhiming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang Jinghua]'s Articles
[Jiang Luguang]'s Articles
[Feng Zhiming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang Jinghua]'s Articles
[Jiang Luguang]'s Articles
[Feng Zhiming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.