Modeling gross primary productivity for winter wheat-maize double cropping System using MODIS time series and CO2 eddy flux tower data

	Modeling gross primary productivity for winter wheat-maize double cropping System using MODIS time series and CO2 eddy flux tower data
	Yan, Huimin 1; Fu, Yuling 1; Xiao, Xiangming 2; Huang, He Qing 1; He, Honglin 1; Ediger, Laura 1
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2009-02-01
卷号	129 期号:4 页码:391-400
关键词	Crop Intensity Vegetation Index Vegetation Photosynthesis Model Multiple Cropping
文献子类	Article
英文摘要	Accurate and spatially explicit monitoring of gross primary productivity of agricultural ecosystems at a large scale is of great significance to assessment of crop conditions and agricultural production, and is necessary for understanding the carbon balance of the terrestrial biosphere. Identifying crop intensity (including multiple cropping and crop calendar) dynamics and assigning appropriate light use efficiency to C3 and C4 crops could substantially improve our ability to model and evaluate the seasonal dynamics of carbon flux in intensified agricultural ecosystems. In this paper, we have analyzed temporal dynamics of vegetation indices and phenological characteristics in the winter-wheat and maize double cropping system using multi-year satellite images from the moderate resolution imaging spectral radiometer (MODIS) and in situ observation of key crop phenological transition dates. The multiple cropping and crop calendar information were incorporated into simulations of the satellite-based vegetation photosynthesis model (VPM). Canopy-level maximum light use efficiency, a key parameter in the satellite-based VPM model, was estimated for both winter wheat (0) and maize (C4) based on the observed CO2 flux data from an eddy flux tower site in a winter wheat-maize double cropping agro-ecosystem in the Huang-Huai-Hai plain, China. The seasonal dynamics of GPP predicted by the VPM model agreed well with estimated GPP from eddy flux tower data. These results demonstrate the potential of the satellite-driven VPM model for scaling-up GPP estimation of intensified agricultural ecosystems, which is relevant to food production and security. (C) 2008 Elsevier B.V. All rights reserved.
WOS关键词	LIGHT-USE EFFICIENCY ; NET PRIMARY PRODUCTIVITY ; PHOTOSYNTHETICALLY ACTIVE RADIATION ; EVERGREEN NEEDLELEAF FOREST ; VEGETATION WATER-CONTENT ; REMOTE-SENSING DATA ; NORTH CHINA PLAIN ; ECOSYSTEM EXCHANGE ; CLIMATE DATA ; TIBETAN PLATEAU
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000263022200005
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/67939]
专题	中国科学院地理科学与资源研究所
通讯作者	Yan, Huimin
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA
推荐引用方式 GB/T 7714	Yan, Huimin,Fu, Yuling,Xiao, Xiangming,et al. Modeling gross primary productivity for winter wheat-maize double cropping System using MODIS time series and CO2 eddy flux tower data[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2009,129(4):391-400.
APA	Yan, Huimin,Fu, Yuling,Xiao, Xiangming,Huang, He Qing,He, Honglin,&Ediger, Laura.(2009).Modeling gross primary productivity for winter wheat-maize double cropping System using MODIS time series and CO2 eddy flux tower data.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,129(4),391-400.
MLA	Yan, Huimin,et al."Modeling gross primary productivity for winter wheat-maize double cropping System using MODIS time series and CO2 eddy flux tower data".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 129.4(2009):391-400.