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Title: Estimating Trends and Variation of Net Biome Productivity in India for 1980–2012 Using a Land Surface Model

Abstract

In this paper we explore the trend in net biome productivity (NBP) over India for the period 1980–2012 and quantify the impact of different environmental factors, including atmospheric CO2 concentrations ([CO2]), land use and land cover change, climate, and nitrogen deposition on carbon fluxes using a land surface model, Integrated Science Assessment Model. Results show that terrestrial ecosystems of India have been a carbon sink for this period. Driven by a strong CO2 fertilization effect, magnitude of NBP increased from 27.17 TgC/yr in the 1980s to 34.39 TgC/yr in the 1990s but decreased to 23.70 TgC/yr in the 2000s due to change in climate. Adoption of forest conservation, management, and reforestation policies in the past decade has promoted carbon sequestration in the ecosystems, but this effect has been offset by loss of carbon from ecosystems due to rising temperatures and decrease in precipitation.

Authors:
 [1];  [2]; ORCiD logo [2];  [1]
  1. Indian Inst. of Technology (IIT), New Delhi (India)
  2. Univ. of Illinois, Urbana, IL (United States)
Publication Date:
Research Org.:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1537302
Grant/Contract Number:  
SC0016323
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 22; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Geology

Citation Formats

Gahlot, Shilpa, Shu, Shijie, Jain, Atul K., and Baidya Roy, Somnath. Estimating Trends and Variation of Net Biome Productivity in India for 1980–2012 Using a Land Surface Model. United States: N. p., 2017. Web. doi:10.1002/2017gl075777.
Gahlot, Shilpa, Shu, Shijie, Jain, Atul K., & Baidya Roy, Somnath. Estimating Trends and Variation of Net Biome Productivity in India for 1980–2012 Using a Land Surface Model. United States. doi:10.1002/2017gl075777.
Gahlot, Shilpa, Shu, Shijie, Jain, Atul K., and Baidya Roy, Somnath. Mon . "Estimating Trends and Variation of Net Biome Productivity in India for 1980–2012 Using a Land Surface Model". United States. doi:10.1002/2017gl075777. https://www.osti.gov/servlets/purl/1537302.
@article{osti_1537302,
title = {Estimating Trends and Variation of Net Biome Productivity in India for 1980–2012 Using a Land Surface Model},
author = {Gahlot, Shilpa and Shu, Shijie and Jain, Atul K. and Baidya Roy, Somnath},
abstractNote = {In this paper we explore the trend in net biome productivity (NBP) over India for the period 1980–2012 and quantify the impact of different environmental factors, including atmospheric CO2 concentrations ([CO2]), land use and land cover change, climate, and nitrogen deposition on carbon fluxes using a land surface model, Integrated Science Assessment Model. Results show that terrestrial ecosystems of India have been a carbon sink for this period. Driven by a strong CO2 fertilization effect, magnitude of NBP increased from 27.17 TgC/yr in the 1980s to 34.39 TgC/yr in the 1990s but decreased to 23.70 TgC/yr in the 2000s due to change in climate. Adoption of forest conservation, management, and reforestation policies in the past decade has promoted carbon sequestration in the ecosystems, but this effect has been offset by loss of carbon from ecosystems due to rising temperatures and decrease in precipitation.},
doi = {10.1002/2017gl075777},
journal = {Geophysical Research Letters},
number = 22,
volume = 44,
place = {United States},
year = {2017},
month = {11}
}

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