NDLI: Simulation for NPP of grassland ecosystem in Qinghai-Tibetan Plateau based on the process model

Content Provider	IEEE Xplore Digital Library
Author	Wang Peijuan Xie Donghui Song Jinling Zhang Jiahua Zhu Qijiang
Copyright Year	2010
Description	Author affiliation: Chinese Academy of Meteorological Science, Beijing 100081, China (Zhang Jiahua) \|\| Beijing Normal University School of Geography, State key Laboratory of Remote Sensing Science, Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, 100875, China (Xie Donghui; Song Jinling; Zhu Qijiang) \|\| Institute of Plateau Meteorology, CMA, Chengdu 610072, China (Wang Peijuan)
Abstract	Qinghai-Tibetan Plateau plays an important role in estimating net primary productivity of grassland ecosystem for global carbon cycling research. In this paper, boreal ecosystem productivity simulator (BEPS) model was modified according to the characteristics of grassland canopy. A hypothesis of horizontal homogeneity and vertical layer was put forward for grassland canopy and BEPS was modified to GEPS (grassland ecosystem productivity simulator) to simulate the NPP of grassland ecosystem. With MODIS products (MOD15A2 and MOD12Q1) and routine meteorological data, net primary productivity of grassland ecosystem was simulated in Qinghai-Tibetan Plateau in 2006 based on GEPS. The result shows that NPP of grassland ecosystem in Qinghai-Tibetan Plateau is between 20 and 500 $gC/m^{2}·a,$ which is close to the other studies. The spatial distribution of NPP of grassland ecosystem in Qinghai-Tibetan Plateau has the trend of decreasing from east to west. Finally the seasonal change of NPP was investigated based on monthly NPP, which has good coherence with the seasonal changes of temperature. This study suggests that the process model - GEPS - is suitable to simulate NPP of grassland ecosystem in Qinghai-Tibetan Plateau.
Starting Page	3307
Ending Page	3310
File Size	347719
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5649558
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Biological system modeling Ecosystems Productivity Data models Remote sensing Temperature distribution Solar radiation NPP GEPS process model Qinghai-Tibetan Plateau
Content Type	Text
Resource Type	Article

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