青狮潭保护区典型森林类型土壤水源涵养功能分析

Analysis on the Water Conservation Function of the Soil of Typical Forest Types in Qingshitan Reserve

通过对青狮潭保护区4种林分类型典型样地中土壤层最大持水量和凋落物持水量进行测定,采用SPSS软件对数据进行分析,发现各类型林分样地中水青冈林土壤层最大持水量>荷木林土壤层最大持水量>杉木林土壤层最大持水量>毛竹林土壤层最大持水量;4种林型地表凋落物层持水量有极显著差异,持水量最高的是水青冈林分,最低是毛竹林分。该研究表明水青冈林具有较好的水源涵养功能,而毛竹林水源涵养能力最差。

Through determination on maximum water-holding capacity of soil layer and litter in typical sites of 4 kinds of forest types in Qingshitan Reserve, data was analyzed by using SPSS software. It was found that the maximum moisture capacity of soil layers is Fagus longipetiolata forest land 〉 Schima superba forest land 〉 Cunninghamia lanceolata forest land 〉 Phyllostachys heterocycla forest land. The moisture capacity of litters in 4 kinds of forest types has extremely significant differences, the maximum is Fagus longipetiolata forest, the minimum is Phyllostachys beterocycla forest. Fagus longipetiolata forest has the best function of water conservation, Phyllostachys heterocycla forest is the worst.