Plant biomass and vegetation index of oasis ecosystem

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Plant biomass and vegetation index of oasis ecosystem

LIU Weiguo¹; GAO Wei^1,2;GAO Zhiqiang³; GUO Kai¹; LU Guanghui¹

¹International Center for Desert Affairs-Research for Sustainable Development in Semi-Arid and Arid Land, College of Resources and Environment Science,Xinjiang University, Urumqi 830046, China; ²Natural Resource Ecology Laboratory, Colorado State University, Fort Collins Colorado, 80309, USA; ³Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

Received:2005-05-30 Revised:2006-05-10 Online:2006-09-10 Published:2006-09-10

Abstract

Abstract: By using the measured data from 53 sampling sites in Fukang oasis and the related remote sensing data with 250 m resolution from 1-2 band of MODIS Thematic Mapper, this paper analyzed the relationships between plant biomass and vegetation index of oasis ecosystem, and established their monadic linear and non-linear regression models. The results showed that there was a significant correlation between the plant biomass and vegetation indices NDVI and MSAVI. Among the established models, cubic equation was the most available in monitoring oasis ecosystem plant biomass and growth.

Key words: Variograms, Ordinary Kriging, Nilaparvata lugens, Spatial structure

LIU Weiguo¹; GAO Wei^1,2;GAO Zhiqiang³; GUO Kai¹; LU Guanghui¹. Plant biomass and vegetation index of oasis ecosystem[J]. cje.

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Plant biomass and vegetation index of oasis ecosystem

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