河南农业大学学报2017，Vol.51Issue(2)：163-169,7.
杨树人工林表层土壤水分及养分特征对森林抚育的响应
Effects of forest tending on soil surface water and nutrients of Populus plantation forest
摘要
Abstract
In order to address the effects of forest tending on the soil physical and chemical properties of soil surface,three treatments of forest tending densities were set up in Populus plantation forest in Zhengzhou Huiji area of Henan Province,and soil sampling and relative experiments were carried out,the effects of different tending densities on soil water and nutrients were analyzed.The results showed that soil saturated water holding capacity,soil non-capillary porosity,soil capillary porosity and soil bulk density of two soil layers increased significantly with the increase of forest trending density,the relationship between three treatments was middle ＞ weak ＞ control,and the soil bulk density of 0 ～ 10 cm soil layers was greatly higher than that of the other two soil layers(P ＜ 0.05).Soil initial infiltration rate,soil stable infiltration rate,cumulative infiltration capacity of former 36 min and soil average infiltration the rate of former 36 min in the soil layer of 0 ～ 10 cm were significantly higher than those of the 10 ～20 cm layer(P ＜ 0.05).The soil organic carbon content and soil organic carbon storage in the 0 ～ 10 cm layer of three treatments were significantly higher than that of the 10 ～ 20 cm layer(P ＜ 0.05),and with the thinning intensity increasing,soil organic carbon content and organic carbon storage were increasing correspondingly,soil organic carbon content and soil organic carbon storage of middle tending were significantly higher than that control and weak tending(P ＜ 0.05).The total nitrogen content of two soil layers increased with the thinning intensity increased,and middle tending to achieve maximum values,which were 0.998 g · kg-1 and 0.597 g · kg-1.Obvious effects of forest tending on the soil surface were addressed,soil bulk density was reduced,the soil capillary porosity and non-capillary porosity were improved,at the same time,soil organic carbon were increased too.关键词
抚育强度/土壤渗透/土壤水分/土壤养分/杨树人工林Key words
forest tending intensity/soil infiltration/soil water properties/soil nutrients/Populus plantation分类
农业科技引用本文复制引用
王德彩,郭丹丹,吴桂藏,闫东锋..杨树人工林表层土壤水分及养分特征对森林抚育的响应[J].河南农业大学学报,2017,51(2):163-169,7.基金项目
国家自然科学基金项目(41201210) （41201210）
河南省林业厅技术招标项目 （）
河南省高等学校青年骨干教师资助计划(2014GGJS-036) （2014GGJS-036）
