Forest Soil Water-Holding Capacity in Karst Peak-Cluster Depression Areas

Abstract:

The study was conducted in arbor forests, arbor-shrub forests and shrub lands in Karst peak-cluster depression areas. We investigated soil property and water-holding capacity in the three types of woodland by means of cutting-ring and water immersion. Our results show that soil bulk density presents an increasing trend along with soil layers deepening, while total soil porosity, capillary porosity and non-capillary porosity decrease. Natural water-holding capacity of soil, saturation water-holding capacity of soil, water-storage capacity of capillary and soil water storage capacity decline with deeper soil layers in all the three forests. Water-holding capacity and immersion time of soil meet the equation Y=kln (X)+b and the equation Y=k(X)^-b fits water absorption rate and soaking time of soil well.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3690-3696
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3690
• Online since: August 2013
• Authors: Jia Xiang Che, An Ding Li, Jian Li Zhang
• Keywords: Forest Soil, Karst, Peak-Cluster Depression Areas, Water-Holding Capacity

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DOI: 10.5846/stxb201012151792

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