DOI: 10.1007/s10584-015-1448-5
Scopus记录号: 2-s2.0-84942501616
论文题名: Terrestrial net primary productivity in India during 1901–2010: contributions from multiple environmental changes
作者: Banger K. ; Tian H. ; Tao B. ; Ren W. ; Pan S. ; Dangal S. ; Yang J.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2015
卷: 132, 期: 4 起始页码: 575
结束页码: 588
语种: 英语
Scopus关键词: Carbon
; Climate models
; Ecosystems
; Land use
; Photosynthesis
; Phytoplankton
; Pollution
; Troposphere
; Atmospheric nitrogen deposition
; Cropland management
; Dynamic land ecosystem models (DLEM)
; Environmental change
; Interannual variation
; Net primary productivity
; Terrestrial carbon cycle
; Tropospheric ozone
; Climate change
; agricultural land
; atmospheric deposition
; atmospheric pollution
; biome
; carbon cycle
; carbon dioxide
; climate change
; environmental change
; land cover
; land use change
; net primary production
; nitrogen
; ozone
; spatiotemporal analysis
; terrestrial ecosystem
; troposphere
; India
英文摘要: India is very important but relatively unexplored region in terms of carbon studies, where significant environmental changes have occurred in the 20th century that can alter terrestrial net primary productivity (NPP). Here, we used a process-based, Dynamic Land Ecosystem Model (DLEM), driven by land cover and land use change (LCLUC), climate change, elevated atmospheric CO2 concentration, atmospheric nitrogen deposition (NDEP), and tropospheric ozone (O3) pollution to estimate terrestrial NPP in India during 1901–2010. Over the country, terrestrial NPP showed significant inter-annual variations ranging 1.2 Pg C year−1 to 1.7 Pg C year−1 during the 1901–2010. Overall, multiple environmental changes have increased terrestrial NPP by 0.23 Pg C year−1. Elevated atmospheric CO2 concentration has increased NPP by 0.29 Pg C; however climate change has offset a portion of terrestrial NPP (0.11 Pg C) during this study period. On an average, terrestrial NPP reduced by 0.12 Pg C year−1 in drought years; when precipitation was 100 mm year−1 lower than long term average, suggesting that terrestrial carbon cycle in India is strongly linked to climate change. LCLUC, including land conversions and cropland management practices, increased terrestrial NPP by 0.043 Pg C year−1 over the country. Tropospheric O3 pollution reduced terrestrial NPP by 0.06 Pg C year−1 and the decrease was comparatively higher in croplands than other biomes after the 1980s. Our results have shown that climate change and tropospheric O3 pollution may partially offset terrestrial NPP increase caused by elevated CO2 concentration, LCLUC, and NDEP over India. © 2015, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84491
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: International Center for Climate and Global Change Research, School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States
Recommended Citation:
Banger K.,Tian H.,Tao B.,et al. Terrestrial net primary productivity in India during 1901–2010: contributions from multiple environmental changes[J]. Climatic Change,2015-01-01,132(4)