The study was conducted in the Huashanzhai Forest Farm in Zhongxiang City,Hubei Province,using Pinus massoniana forests as the research subject.Soil samples were collected from different thinning intensities 0％,10％,20％,30％,and 40％,and the changes in soil organic matter and microbial communities(including aerobic bacteria,fungi,and actinomycetes)were investigated one year after treatment.The results indicated that high thinning intensity(40％)signif-icantly reduced soil organic matter content and significantly increased the number of actinomycetes.For moderate thinning(30％),there were no significant changes in soil organic matter content,but there was a significant increase in fungal pop-ulations.Therefore,selecting a thinning intensity of 30％～40％is a reasonable reference for enhancing the quantity of soil microbial communities in forest lands.
维普
万方数据