Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data

NWIPB OpenIR

	Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data
	Li, Zhengquan ; Yu, Guirui ; Xiao, Xiangming ; Li, Yingnian ; Zhao, Xinquan ; Ren, Chuanyou ; Zhang, Leiming ; Fu, Yuling
	2007-04-12
发表期刊	REMOTE SENSING OF ENVIRONMENT ; Li Zhengquan,Yu Guirui,Xiao Xiangming,Li Yingnian,Zhao Xinquan,Ren Chuanyou,Zhang Leiming,Fu Yuling.Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data.REMOTE SENSING OF ENVIRONMENT,2007,107(3):510-519
摘要	The eddy covariance technique provides measurements of net ecosystem exchange (NEE) Of CO2 between the atmosphere and terrestrial ecosystems, which is widely used to estimate ecosystem respiration and gross primary production (GPP) at a number Of CO2 eddy flux tower sites. In this paper, canopy-level maximum light use efficiency, a key parameter in the satellite-based Vegetation Photosynthesis Model (VPM), was estimated by using the observed CO2 flux data and photosynthetically active radiation (PAR) data from eddy flux tower sites in an alpine swamp ecosystem, an alpine shrub ecosystem and an alpine meadow ecosystem in Qinghai-Tibetan Plateau, China. The VPM model uses two improved vegetation indices (Enhanced Vegetation Index (EVI), Land Surface Water Index (LSWI)) derived from the Moderate Resolution Imaging Spectral radiometer (MODIS) data and climate data at the flux tower sites, and estimated the seasonal dynamics of GPP of the three alpine grassland ecosystems in Qinghai-Tibetan Plateau. The seasonal dynamics of GPP predicted by the VPM model agreed well with estimated GPP from eddy flux towers. These results demonstrated the potential of the satellite-driven VPM model for scaling-up GPP of alpine grassland ecosystems, a key component for the study of the carbon cycle at regional and global scales. (c) 2006 Elsevier Inc. All rights reserved.; The eddy covariance technique provides measurements of net ecosystem exchange (NEE) Of CO2 between the atmosphere and terrestrial ecosystems, which is widely used to estimate ecosystem respiration and gross primary production (GPP) at a number Of CO2 eddy flux tower sites. In this paper, canopy-level maximum light use efficiency, a key parameter in the satellite-based Vegetation Photosynthesis Model (VPM), was estimated by using the observed CO2 flux data and photosynthetically active radiation (PAR) data from eddy flux tower sites in an alpine swamp ecosystem, an alpine shrub ecosystem and an alpine meadow ecosystem in Qinghai-Tibetan Plateau, China. The VPM model uses two improved vegetation indices (Enhanced Vegetation Index (EVI), Land Surface Water Index (LSWI)) derived from the Moderate Resolution Imaging Spectral radiometer (MODIS) data and climate data at the flux tower sites, and estimated the seasonal dynamics of GPP of the three alpine grassland ecosystems in Qinghai-Tibetan Plateau. The seasonal dynamics of GPP predicted by the VPM model agreed well with estimated GPP from eddy flux towers. These results demonstrated the potential of the satellite-driven VPM model for scaling-up GPP of alpine grassland ecosystems, a key component for the study of the carbon cycle at regional and global scales. (c) 2006 Elsevier Inc. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/30405
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Li, Zhengquan,Yu, Guirui,Xiao, Xiangming,et al. Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data[J]. REMOTE SENSING OF ENVIRONMENT, Li Zhengquan,Yu Guirui,Xiao Xiangming,Li Yingnian,Zhao Xinquan,Ren Chuanyou,Zhang Leiming,Fu Yuling.Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data.REMOTE SENSING OF ENVIRONMENT,2007,107(3):510-519,2007.
APA	Li, Zhengquan.,Yu, Guirui.,Xiao, Xiangming.,Li, Yingnian.,Zhao, Xinquan.,...&Fu, Yuling.(2007).Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data.REMOTE SENSING OF ENVIRONMENT.
MLA	Li, Zhengquan,et al."Modeling gross primary production of alpine ecosystems in the Tibetan Plateau using MODIS images and climate data".REMOTE SENSING OF ENVIRONMENT (2007).