Title :
An analysis on the degradation pattern of the steppe grassland on different slope in North China
Author :
Li, Su-ying ; Li, Xiao-bing ; Fu, Na ; Wang, Dan-dan ; Wang, Hong ; Long, Hui-ling
Author_Institution :
Minist. of Educ., Beijing
Abstract :
In this study, the degradation pattern of the steppe was taken as the study object. Based on Gutman model, four kinds of degraded grassland were extracted from TM image in 1991 and 2005. And the slope of the research area was computed from DEM. In addition, the degradation pattern of the grassland on different slope was analyzed. The result suggests that the study of degradation pattern of the steppe is helpful to control the grassland degradation, and to attain the aim of the sustainable grassland ecosystem management.
Keywords :
digital elevation models; environmental degradation; geophysical techniques; vegetation; AD 1991 to 2005; Gutman model; North China; degradation pattern; digital elevation models; grassland ecosystem management; steppe grassland; Degradation; Digital cameras; Distributed computing; Ecosystems; Educational institutions; Geographic Information Systems; Global Positioning System; Pattern analysis; Spatial resolution; Vegetation mapping; degradation grassland pattern; land use; vegetation fractional coverage;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423583
