广西猫儿山主要林型水源涵养功能研究

Evaluation on Water Conservation Function of Typical Forest Ecosystems in Maoer Mountian

对广西猫儿山国家级自然保护区高山矮林、铁杉林、水青冈林、人工阔叶林和毛竹林5种森林系统林冠层、凋落物层及土壤层水源涵养功能进行研究。结果表明:5种林型水源涵养功能差异明显。依据灰色关联度分析,5种林型水源涵养功能大小依次为:铁杉林>水青冈林>高山矮林>人工阔叶林>毛竹林。铁杉林具有最好的水源涵养功能,而毛竹林水源涵养能力最差。

An investigation on water conservation function of the canopy, litter and soil in five typical forest ecosystems, was conducted in Maoer Mountain, Guangxi Province, e. g. alpine dwarf forest, Tsuga ckinensis forest, Fagus sylvatica forest, broadleaf plantation and Pkyllostachys pubescens forest. The re suits showed that there existed great differences in the water conservation functions among the system studied. Based on gray correlation analysis, the function of water conservation of the five typical forest e cosystems was in the order of T. chinensis forest〉F, sylvatica forest 〉alpine dwarf forest〉broadleaf plantation〉P, pubescens forest. The T. chinensis forest had the greatest water-holding capability, while P. pubescens forest had the lowest capability.