effect of national-scale afforestation on forest water supply and soil loss in south korea, 1971–2010

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ID: 185048
2017
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Abstract
Afforestation of forests in South Korea may provide an example of the benefit of afforestation on precipitation storage and erosion control. In this study, we presented the effects of afforestation on water supply and soil loss prevention. A spatio-temporal simulation of forest water yield and soil loss was performed from 1971–2010 using InVEST water yield and SWAT models. A forest stock change map was produced by combining land cover data and National Forest Inventory data. The forest water yield increased about twice with changes in forest stock and climate from 1971–2010 and showed a spatially homogeneous water supply capacity. In the same period, the soil loss decreased more than three times, and the volatility of soil loss, in the 2010s, was smaller than before. The analysis of the change in forest stock without considering climate change showed an increase of 43% in forest water yield and a decrease of 87% in soil loss. An increase in precipitation increased the water yield, but also increased the soil loss volume. A change in forest stock led to positive changes in both. This study presents functional positive effects of the afforestation program in South Korea that can be useful in various afforestation programs in other countries.
Reference Key
kim2017sustainabilityeffect Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Gang Sun Kim;Chul-Hee Lim;Sea Jin Kim;Jongyeol Lee;Yowhan Son;Woo-Kyun Lee
Journal journal of physics: conference series
Year 2017
DOI
10.3390/su9061017
URL
http://www.mdpi.com/2071-1050/9/6/1017
Keywords
soil loss afforestation

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