The peatland area change in past 20 years in the Zoige Basin, eastern Tibetan Plateau

doi:10.1007/s11707-011-0178-x

Front Earth Sci

0, Vol.

Issue () : 271-275 https://doi.org/10.1007/s11707-011-0178-x

RESEARCH ARTICLE

The peatland area change in past 20 years in the Zoige Basin, eastern Tibetan Plateau

Li YAO¹, Yan ZHAO²(

), Shujun GAO¹, Jinghui SUN², Furong LI²

1. College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, China; 2. Research School of Arid Environment and Climate Change, Lanzhou University, Lanzhou 730000, China

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Abstract

Using unsupervised classification, visual interpretation, slope mask with the aid of ArcGIS and ERDAS, we analyzed the peatland area change in the Zoige Basin, eastern Tibetan Plateau, during last two decades on the basis of 12 Landsat-TM images. The results showed that the peatland area decreased seriously from 4143.39 to 3407.29 km² between early 1990s and 2000 and increased slightly to 3588.71 km² in 2009. Though peatland area change is positively correlated with the climate trend, the correlation is not very significant. Instead, in considering the population increase, stock development and government policy, we suggest that human activity is likely the more important factor that caus the peatland area variations.

Keywords Zoige Basin peatland area remote sensing TM images human activity

Corresponding Author(s): ZHAO Yan,Email:yanzhao@lzu.edu.cn

Issue Date: 05 September 2011

Cite this article:

Jinghui SUN,Furong LI,Li YAO, et al. The peatland area change in past 20 years in the Zoige Basin, eastern Tibetan Plateau[J]. Front Earth Sci, 0, (): 271-275.

URL:

https://academic.hep.com.cn/fesci/EN/10.1007/s11707-011-0178-x
https://academic.hep.com.cn/fesci/EN/Y0/V/I/271

Fig.1 Location and geographical position of the study area

Fig.2 Distribution map of peatland in the Zoige Basin in 1990(a), 2000(b) and 2009(c)

Tab.1 Meteorological data statistics of the past 50 years from 1954 to 2003

Fig.3 Broken-line graph of precipitation (a) and temperature (b) of the past 50 years in the Zoige region

Fig.4 Broken-line graph of population

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