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http://dx.doi.org/10.14481/jkges.2019.20.12.33

Landuse and Landcover Change and the Impacts on Soil Carbon Storage on the Bagmati Basin of Nepal  

Bastola, Shiksha (Department of Disaster Prevention and Environmental Engineering, Kyungpook National University)
Lim, Kyuong Jae (Department of Regional Infrastructure Engineering, Kangwon National University)
Yang, Jae Eui (Department of Biological Environment, Kangwon National University)
Shin, Yongchul (Department of Agricultural Civil Engineering, Kyungpook National University)
Jung, Younghun (Department of Disaster Prevention and Environmental Engineering, Kyungpook National University)
Publication Information
Journal of the Korean GEO-environmental Society / v.20, no.12, 2019 , pp. 33-39 More about this Journal
Abstract
The upsurge of population, internal migration, economic activities and developmental works has brought significant land use and land cover (LULC) change over the period of 1990 and 2010 in the Bagmati basin of Nepal. Along with alteration on various other ecosystem services like water yield, water quality, soil loss etc. carbon sequestration is also altered. This study thus primary deals with evaluation of LULC change and its impact on the soil carbon storage for the period 1990 to 2010. For the evaluation, InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) Carbon model is used. Residential and several other infrastructural development activities were prevalent on the study period and as a result in 2010 major soil carbon reserve like forest area is decreased by 7.17% of its original coverage in 1990. This decrement has brought about a subsequent decrement of 1.39 million tons of carbon in the basin. Conversion from barren land, water bodies and built up areas to higher carbon reserve like forest and agriculture land has slightly increased soil carbon storage but still, net reduction is higher. Thus, the spatial output of the model in the form of maps is expected to help in decision making for future land use planning and for restoration policies.
Keywords
Soil carbon; Land use; Carbon storage; Development; Decision-making;
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