Implications of Land Use Changes on Carbon Dynamics and Sequestration—Evaluation from Forestry Datasets, India

V. Krishna Prasad, K.V.S. Badarinath, H. Tsuruta, S. Sudo, S. Yonemura, John Cardina, Benjamin Stinner, Richard Moore, Deborah Stinner and Casey Hoy
Additional contact information
V. Krishna Prasad: Ohio State University
K.V.S. Badarinath: Ohio State University
H. Tsuruta: Ohio State University
S. Sudo: Ohio State University
S. Yonemura: Ohio State University
John Cardina: Ohio State University
Benjamin Stinner: Ohio State University
Richard Moore: Ohio State University
Deborah Stinner: Ohio State University
Casey Hoy: Ohio State University

Environment Systems and Decisions, 2003, vol. 23, issue 2, 175-187

Abstract: Abstract Forests and soils are a major sink of carbon, and land use changes can affect the magnitude of above ground and below ground carbon stores and the net flux of carbon between the land and the atmosphere. Studies on methods for examining the future consequences of changes in patterns of land use change and carbon flux gains importance, as they provide different options for CO2 mitigation strategies. In this study, a simulation approach combining Markov chain processes and carbon pools for forests and soils has been implemented to study the carbon flows over a period of time. Markov chains have been computed by converting the land use change and forestry data of India from 1997 to 1999 into a matrix of conditional probabilities reflecting the changes from one class at time t to another class time t+1. Results from Markov modeling suggested Indian forests as a potential sink for 0.94 Gt carbon, with an increase in dense forest area of about 75.93 Mha and decrease of about 3.4 Mha and 5.0 Mha in open and scrub forests, if similar land use changes that occurred during 1997–1999 would continue. The limiting probabilities suggested 34.27 percent as dense forest, 6.90 as open forest, 0.4 percent mangrove forest, 0.1 percent scrub and 58 percent as non-forest area. Although Indian forests are found to be a potential carbon sink, analysis of results from transition probabilities for different years till 2050 suggests that, the forests will continue to be a source of about 20.59 MtC to the atmosphere. The implications of these results in the context of increasing anthropogenic pressure on open and scrub forests and their contribution to carbon source from land use change and forestry sector are discussed. Some of the mitigation aspects to reduce greenhouse gas emissions from land use change and forestry sector in India are also reviewed in the study.

Keywords: land use cover changes; Markov chains; transition probabilities; forest and soil carbon (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1023/A:1024841217199

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