The characteristics of land cover and macroscopical ecology changes in the Source Region of Three Rivers in Qinghai-Tibet plateau during last 30 years

Author

Shao, Quanqin ; Zhao, Zhiping ; Liu, Jiyuan ; Fan, Jiangwen

Author_Institution

Inst. of Geographic Sci. & Natural Resources Res., Chinese Acad. of Sci., Beijing, China

fYear

2010

fDate

25-30 July 2010

Firstpage

363

Lastpage

366

Abstract

We obtained four phases of land cover spatial data sets by interpreting MSS images of middle and late 1970s and three phases of TM images of late 1980s, 2004 and 2008 based on field investigation in Three Rivers´ Source Region. We analyzed the temporal and spatial characteristics of land cover and macro ecological changes in Three Rivers´ Source Region in Qinghai-Tibet plateau since middle and late 1970s. Indicated by land cover condition index change rate and land cover change index, land cover and macroscopical ecological condition degenerated (7090 period Zc -0.63, LCCI -0.58)-obviously degenerated (9004 period, Zc -0.94, LCCI -1.76)-slightly meliorated (0408 period, Zc 0.06, LCCI 0.33). This course was jointly driven by climate change, grassland stocking pressure and implement of ecological construction project.

Keywords

ecology; environmental monitoring (geophysics); vegetation mapping; China; MSS images; Qinghai-Tibet plateau; Three Rivers source region; land cover change index; land cover characteristics; land cover condition index change rate; land cover spatial data sets; macroscopical ecology changes; Degradation; Ecosystems; Indexes; Meteorology; Remote sensing; Rivers; Direction and extent of land cover change; Land cover change index; Land cover condition index; Three Rivers´ Source Region;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International

Conference_Location

Honolulu, HI

ISSN

2153-6996

Print_ISBN

978-1-4244-9565-8

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2010.5651314

Filename

5651314