鹰嘴界自然保护区不同植被类型土壤的水源涵养功能  

Water conservation function of soil of different forest types in Yingjiezui Nature Reserve

作　　者：王忠诚[1] 张展[1] 吕磊[1] 周亮[1] 

机构地区：[1]中南林业科技大学林学院,湖南长沙410004

出　　处：《中南林业科技大学学报》2011年第10期21-25,共5页Journal of Central South University of Forestry & Technology

基　　金：湖南省森林生态公益林效益监测与评价(2130209)

摘　　要：对鹰嘴界自然保护区阔叶林、杉木毛竹混交林和杉木林的土壤密度、孔隙度、蓄水性能以及渗透性能等进行了研究。结果表明,不同林分类型土壤密度和土壤孔隙度(0～45cm)差异较大,密度大小依次为:杉木毛竹混交林>杉木林>阔叶林;非毛管孔隙度的大小为:杉木林>杉木毛竹混交林>阔叶林;毛管孔隙度的大小为:阔叶林>杉木毛竹混交林>杉木林;总孔隙度的大小为:杉木林>阔叶林>杉木毛竹混交林。土壤有效蓄水量大小顺序为:杉木林>杉木毛竹混交林>阔叶林;最大蓄水量为:阔叶林>杉木林>杉木毛竹混交林;稳渗速度为:阔叶林>杉木林>杉木毛竹混交林。该研究结论对鹰嘴界自然保护区水源涵养林建设实践具有一定的参考价值。Soil bulk density,soil porosity,water-holding capacity and permeability of forest land for broad leaf forest,Chinese fir forest and mixed forest of Chinese fir and Moso bamboo in Yingjiezui Nature Reserve were studied.The results indicate that there existed obvious differences in soil bulk density and soil porosity（in 0~45 cm layer）among different forest types;the soil bulk density of the mixed forest of Chinese fir and Moso bamboo was the biggest and that of broad leaf forest was the smallest;the non-capillary porosity of Chinese fir forest was the biggest and that of broad leaf forest was the smallest;the capillary porosity of broad leaf forest was the biggest and that of Chinese fir forest is the smallest;the total porosity of broad leaf forest is the biggest and that of Chinese fir forest was the smallest;the effective soil water storage of Chinese fir forest was the most while that of broad leaf forest the least;the maximum water storage of broad leaf forest was the most while that of the mixed forest of Chinese fir and Moso bamboo the least;the stable permeability rate of broad leaf forest was the biggest while that of the mixed forest of Chinese fir and Moso bamboo the smallest.The conclusions above are of certain reference value toward the construction of water conservation forest in Yingjiezui Nature Reserve.

关 键 词：水源涵养 林分类型 孔隙度 鹰嘴界自然保护区 

分 类 号：S714[农业科学—林学]