A modified framework for the regional assessment of climate and human impacts on net primary productivity
Pan, Y; Yu, CQ; Zhang, XZ; Chen, BX; Wu, JX; Tu, YL; Miao, YJ; Luo, LM
2016
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume60Pages:184-191
AbstractImproving models that depict the components of net primary production (NPP) in ecosystems will help us to better understand how climate change and human activities affect the biosphere. In this study, NPPgap was introduced into the present human appropriation of net primary production (HANPP) framework. We introduced NPPgap in this study as potential NPP (NPPpot) minus the sum of ecosystem NPP (NPPeco) and HANPP, which relates to the ability of models to depict NPP components. Using the Lhasa River region of the Tibetan Plateau, we examined temporal and spatial variations in the components of NPP over a 10-year period. Results showed that NPPpot, HANPP and NPPeco increased from 2000 to 2010, but at different rates and with different spatial patterns. NPPgap each year ranged from -9.2% to 13.1% for each site and on average composed 1.2% of the total NPPpot. NPPgap was significantly correlated with precipitation, plant biodiversity, plant height and soil properties. NPPgap increased if either of the previous 2 years had been wet years with relative high precipitation. An increase in the richness of palatable species would lead to a larger NPPgap through more compensatory growth. The large fluctuation level of NPPgap reflected the higher stability of vegetation productivity, which is caused by higher plant heights and soil maximum water capacity. This study showed the potential of the HANPP framework in regional assessment of climate and human impacts on net primary productivity. The use of the NPPgap measure reflects the gap in our knowledge and our ability to accurately estimate the components of NPP. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeJournal
KeywordNPPgap HANPP Plant functional traits Precipitation legacy Tibetan Plateau
Subject AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS Subject ExtendedBiodiversity Conservation ; Environmental Sciences
WOS KeywordHUMAN APPROPRIATION ; ALPINE GRASSLAND ; FUNCTIONAL DIVERSITY ; COMPENSATORY GROWTH ; TIBETAN PLATEAU ; LARGE HERBIVORE ; ECOSYSTEM ; STEPPE ; MODEL ; AVAILABILITY
Indexed BySCI
Language英语
WOS IDWOS:000367407000018
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44322
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Pan, Y,Yu, CQ,Zhang, XZ,et al. A modified framework for the regional assessment of climate and human impacts on net primary productivity[J]. ECOLOGICAL INDICATORS,2016,60:184-191.
APA Pan, Y.,Yu, CQ.,Zhang, XZ.,Chen, BX.,Wu, JX.,...&Luo, LM.(2016).A modified framework for the regional assessment of climate and human impacts on net primary productivity.ECOLOGICAL INDICATORS,60,184-191.
MLA Pan, Y,et al."A modified framework for the regional assessment of climate and human impacts on net primary productivity".ECOLOGICAL INDICATORS 60(2016):184-191.
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