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对杉木和马尾松混交人工林伐区人力担筒集材作业前后林地集材道土壤理化性质变化进行研究.结果表明:集材后除土壤容重和结构体破坏率增大外,其余土壤理化性质指标均下降,而且表层土壤(0-20 cm)所受影响较底层土壤(20-40 cm)大;集材作业导致表层土壤容重增大0.08 g.cm-3,土壤结构体破坏率提高1.20%,最大持水量下降8.85%,总孔隙度减小4.39%;表层土壤有机质、全氮、水解性氮、全磷、速效磷、全钾、速效钾的质量分数分别下降3.62 g.kg-1、0.26 g.kg-1、36.70 mg.kg-1、0.11 g.kg-1、3.33 mg.kg-1、1.31 g.kg-1、0.59 mg.kg-1.
The changes of soil physical and chemical properties before and after timbering of Chinese fir and Pinus massoniana plantation in the cutting area of human plantation were studied.The results showed that except for soil bulk density and the destruction rate of structure, the remaining soil physical and chemical properties (0-20 cm) was more affected than that of the bottom soil (20-40 cm), and the bulk density of the top soil increased by 0.08 g · cm-3 and the destruction rate of the soil structure increased by 1.20 %, The maximum water holding capacity decreased by 8.85% and the total porosity decreased by 4.39%. The mass fraction of soil organic matter, total nitrogen, hydrolyzable nitrogen, total phosphorus, available phosphorus, total potassium and available potassium decreased by 3.62 g.kg-1 , 0.26 g.kg-1, 36.70 mg.kg-1, 0.11 g.kg-1, 3.33 mg.kg-1, 1.31 g.kg-1, 0.59 mg.kg-1.