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KMID : 1024520130220101295
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Journal of the Environmental Sciences
2013 Volume.22 No. 10 p.1295 ~ p.1304
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Physicochemical Properties of Topsoil Used for River Improvement and Non-Improvement Areas
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Kim Won-Tae
Cho Yong-Hyeon
Yoon Yong-Han
Kang Hee-Kyoung
Park Bong-Ju
Shin Kyung-Jun
Eo Yang-Joon
Yoon Taek-Seong
Jang Kwang-Eun
Kwak Moo-Young
Song Hong-Seon
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Abstract
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This study was carried out to evaluate the physicochemical properties and perform a feasibility analysis of planting material composed of topsoil from river improvement and non-improvement areas. The results showed that the physicochemical properties of topsoil from river improvement areas were on the average sandy loam~loamy sand in soil texture, 5.6~6.8 in pH,0.01~0.06 dS/m in EC, 0.9~2.1% in OM, 0.02~0.12% in T-N, 8~14 cmol+/kg in CEC, 0.01~0.08 cmol+/kg in Ex. K+,2.55~11.11 cmol+/kg in Ex. Ca2+, 0.34~2.06 cmol+/kg in Ex. Mg2+, and 3~396 mg/kg in Av. P2O5. And non-improvement areas showed on average sandy clay loam~sand in soil texture, 5.7~6.7 in pH, 0.02~0.08 dS/m in EC, 0.9~4.4% in OM, 0.02~0.23% in T-N, 7~18 cmol+/kg in CEC, 0.01~0.08 cmol+/kg in Ex. K+, 3.81~12.67 cmol+/kg in Ex. Ca2+, 0.60~1.95 cmol+/kg in Ex.Mg2+, and 3~171 mg/kg in Av. P2O5. Meanwhile, the results of an applied valuation of topsoil- based planting were as follows.
Ex. K+ levels were low grade in all survey areas. OM was low grade in 12 improvement areas and 11 non-improvement areas.Av. P2O5 levels were low grade in 10 improvement areas and 10 non-improvement areas. T-N was low grade in six
improvement areas and four non-improvement areas. Ex. Mg2+ levels were low grade in two improvement areas.
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KEYWORD
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Topsoil, River improvement, Physicochemical properties, Planting base
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