水土保持学报2012，Vol.26Issue(1)：62-66,71,6.
北京山区侧柏人工林水源涵养功能对抚育间伐的响应
Effects of Thinning on Water Conservation of Platycladus orientalis Plantation in Beijing Mountain Area
摘要
Abstract
The research subject of this paper is to study the soil characteristics and hydrological effects of litter of Platycladus orientalis plantation with heavy,medium and light intensity thinning respectively,the results showed： Compared with nonthinning,the soil bulk density decreased 9.5%,13.0%,18.9% respectively at soil depth of 0-10 cm and decreased 0.3%,6.5% and 9.8% respectively at soil depth of 10-20 cm;the soil total porosity increased 9.6%,13.1%,19.1% respectively at soil depth of 0-10 cm and increased-0.3%,6.3%,9.5% respectively at soil depth of 10-20 cm;water conservation increased 5.5%,25.1%,32.1% respectively;the total water holding capacity increased 14.3%,4.6%,9.7% respectively after different intensity thinning after 5 years.Contrasted with the control,the litter amount increased 92.2%,268.3%,19.0% respectively,maximal litter water retention rate increased 10.6%,28.4%,28.7%,litter water retention increased 116.8%,379.3%,55.8% respectively.Variance analysis shows that there are notable differences between the treatments of medium,heavy intensity thinning and the control which indicated that thinning measure can improve the soil physical properties,reduce soil bulk density,increase the soil total porosity and improve soil water conservation.Therefore,the medium and heavy intensity thinning measure is more favorable for Platycladus orientalis plantation according to the water conservation.关键词
抚育间伐/水源涵养/土壤孔隙度/枯落物持水量Key words
thinning/water conservation/soil porosity/litter water retention分类
农业科技引用本文复制引用
贾忠奎,温志勇,贾芳,公宁宁,游伟斌,汪加魏,马履一..北京山区侧柏人工林水源涵养功能对抚育间伐的响应[J].水土保持学报,2012,26(1):62-66,71,6.基金项目
中央高校基本科研业务费专项 （）
林业公益性行业科研专项 （）
林业科技推广项目 （）
