Estimation and analysis of net primary productivity by integrating MODIS remote sensing data with a light use efficiency model

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 历年回溯文献

	Estimation and analysis of net primary productivity by integrating MODIS remote sensing data with a light use efficiency model
	Liu Jiyuan; Shi Wenjiao
	2013
关键词	Computer simulation Ecosystems Efficiency Estimation Radiometers Satellite imagery
英文摘要	Estimates of regional net primary productivity (NPP) are very useful in modeling regional and global carbon cycles. This work proposed a new method to study NPP characteristics and changes in the Inner Mongolia Autonomous Region, China. To estimate NPP accurately, we integrated photosynthetically active radiation (PAR) with a light use efficiency model, derived from Moderate Resolution Imaging Spectroradiometer atmospheric and land products. Validation analyses showed that the PAR and NPP values simulated by the model matched observed data well. Annual NPP in the study area was about 0.25 PgC a-1 from 2003 to 2008. In spatial distribution, NPP decreased from northeast to southwest in the Inner Mongolia Autonomous Region. NPP from May to September accounted for 84.2% of annual NPP, while that from July to August accounted for 44.3%. NPP was significantly correlated to both precipitation and temperature at monthly temporal scales. NPP also changed with the fraction of absorbed PAR. 2012 Elsevier B.V.
出处	Ecological Modelling
卷	252 期:1 页:3-10
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31295]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Liu Jiyuan,Shi Wenjiao. Estimation and analysis of net primary productivity by integrating MODIS remote sensing data with a light use efficiency model. 2013.