黧蒴锥马尾松混交林涵养水源功能的研究

摘要

对黧蒴锥（Castanopsis fissa）马尾松（Pinus massoniana）混交林和纯林持水性能进行比较分析，结果表明：林分树种结构不同，涵养水源功能存在差异，不同组成林分持水量排序为：6栲4马>4栲6马>10栲纯林>10马纯林；各林分各层次持水量排序为：土壤层>林冠层>枯枝落叶层>植被层，不同混交模式林分总持水量主要分布在土壤层，黧蒴锥马尾松混交林水源涵养能力大于纯林。%Plantation of mixed and pure forest ofCastanopsis fissa andPinus massoniana was conducted in 1999. Investigations were implemented in 2013 on growth, biomass, soil properties and water holding capacities of different tested stands. The result demonstrated that water holding capacity of tested stands was ordered by mixed forest ofC fissa (60%)andP. massoniana(40%)> mixed forest ofC fissa (40%)andP. massoniana(60%) > pureC fissa forest>pureP. massoniana forest. Water holding capacity of different layers of tested stands was soil layer>canopy>litter>undergrowth vegetation. The experiment indicated that water holding capacity of mixed forest was higher than that of pure forest.