Impacts of climate and land use changes on water and sediment yields for the black soil region, northeastern China

Haiyan Fang () and Zemeng Fan ()
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Haiyan Fang: Chinese Academy of Sciences
Zemeng Fan: Chinese Academy of Sciences

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2021, vol. 23, issue 4, No 71, 6259-6278

Abstract: Abstract The impact of climate or land use change on hydro-sedimentological process has been widely studied. However, their combined and distinct impacts to catchment runoff and sediment yield (SY) have received comparatively little attention, which impedes decision makers to better manage land use. To that end, the spatially distributed TETIS model was adopted to estimate impacts of land use and climate change on runoff and SY during 1978–2014 in the Yian catchment of the black soil region, northeastern China. Results indicated that the scenario with only climate change increased water and SYs by 31.55% and 92.1%, respectively. The scenarios with the changes in land use in 1985, 1995, 2000 and 2010 increased water and SYs by 1.28% and 12.54%, respectively. With respect to the baseline period in 1978–1987, the average increased rates of water and SYs were 31.7% and 114.5%, respectively. The contributions by climate change were 99.5% for water yield and 69.2% for SY, respectively. This study indicated that rational configuration and management of land use can alleviate the adverse impact derived by climate change in the black soil region and similar regions all over the world.

Keywords: Climate and land use changes; Modeling; Water yield; Sediment yield; Black soil region (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10668-020-00871-2

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