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2013•Hubei nongye kexueRequires access

Optimization of Hydraulic Conductivity of Root Zone Formula Soil for Golf Course Green

Wang Xiao-qion

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Abstract

The saturated hydraulic conductivity(Ksat) of root zone formula soil in 13 golf course green was tested;and a significantly correlative regression model between Ksat and formula components of formula soil was established.Factor analysis and simulation optimization of the model were conducted.The results showed that Ksat of the formula soil increased with the increase of content of middle-coarse and fine sand,while decreased with the increase of peat content.Ksat increased with the increase of content of very fine sand+ silt+ clay when it was at low to middle level,but decreased when it was at middle to high level.As it was recommended by USGA(United States Golf Association)(Ksat 15 cm / h),the optimal soil mixture was middle-coarse 70.6%~74.1%,fine sand 18.5%~20.3%,very fine sand+ silt+ clay 7.1%~8.6%,and peat 0%~0.9%.

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What this paper is about

The saturated hydraulic conductivity(Ksat) of root zone formula soil in 13 golf course green was tested;and a significantly correlative regression model between Ksat and formula components of formula soil was established.Factor analysis and simulation optimization of the model were conducted.The results showed that Ksat of the formula soil increased with the increase of content of middle-coarse and fine sand,while decreased with the increase of peat content.Ksat increased with the increase of content of very fine sand+ silt+ clay when it was at low to middle level,but decreased when it was at middle to high level.As it was recommended by USGA(United States Golf Association)(Ksat 15 cm / h),the optimal soil mixture was middle-coarse 70.6%~74.1%,fine sand 18.5%~20.3%,very fine sand+ silt+ clay 7.1%~8.6%,and peat 0%~0.9%.

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Available abstract

The saturated hydraulic conductivity(Ksat) of root zone formula soil in 13 golf course green was tested;and a significantly correlative regression model between Ksat and formula components of formula soil was established.Factor analysis and simulation optimization of the model were conducted.The results showed that Ksat of the formula soil increased with the increase of content of middle-coarse and fine sand,while decreased with the increase of peat content.Ksat increased with the increase of content of very fine sand+ silt+ clay when it was at low to middle level,but decreased when it was at middle to high level.As it was recommended by USGA(United States Golf Association)(Ksat 15 cm / h),the optimal soil mixture was middle-coarse 70.6%~74.1%,fine sand 18.5%~20.3%,very fine sand+ silt+ clay 7.1%~8.6%,and peat 0%~0.9%.

Key concepts: Hydraulic conductivity, Silt, Peat, Soil science, Environmental science, Soil water, Geology, Biology

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