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KMID : 1024520100190070843
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Journal of the Environmental Sciences
2010 Volume.19 No. 7 p.843 ~ p.848
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Change Soil Water and Evaluation with Respect to Shallow-Extensive Green Roof System
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Park Jun-Suk
Park Je-Hea
Ju Jin-Hee
Yoon Yong-Han
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Abstract
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This study focused on the characteristics of change soil water with respect to soil thickness and soil mixture ratio, in order
to effectively carry out an afforestation system for a roof with a low level of management and a light weight. Soil hardness tended to increase as sand particle was increase regardless soil thickness and soil porosity had more higher artificial soil than natural soil mixture. In case of soil pH, natural soil mixture had between 6.7 and 7.4, and artificial soil mixture had 6.0～6.8. Organic matter, electrical conductance and exchangeable content were highest in L10, which it had the highest leafmold ratio. Soil moisture tension(kPa) in 15cm soil thickness was observed natural soil mixture had a considerable change but artificial soil mixture had a gradual change when non-rainfall kept on. In the experimental L10, S10, S7L3 and S5L5 object, the amount of moisture tended to rapidly decrease. However, in the experimental P7P1L2, P6P2L2, P5P3L2 and P4P4L2 objects, which contained pearlite and peat moss, the amount of moisture tended to gradually decrease. As a result, the use of a artificial soil mixture soil seems to be required for the afforestation of a roof for a low level of management.
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KEYWORD
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Greening of building, Biotop, Soil water, Soil thickness, Soil mixture ratio, Artificial soil
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