摘要
对安徽老山自然保护区亚热带常绿阔叶林不同林龄林分的土壤特性、凋落物持水量以及林地土壤蓄水性能等方面进行了研究。结果表明,不同林分的土壤性质及其水源涵养功能差异明显。在森林植被恢复过程中,随着林分生长,林地凋落物层逐渐发育,土壤性质得到明显改善,土壤水文功能逐渐提高。依据林地总蓄水量和有效蓄水量的大小,不同林分的水源涵养功能依次为:65年生(2415,645 t/hm2)>48年生(2407,634 t/hm2)>36年生(2273,562 t/hm2)>幼龄林(2079,462 t/hm2)。高龄林分土壤的水源效应显著高于幼龄林分。
An investigation on soil properties, water-holding capacity of forest floor and soil in a subtropical evergreen broad-leaved forest across a chronosequence was conducted in Laoshan natural reserve, southern Anhui. Results from the study showed that there existed significant differences in soil properties and water conservation function among different stages of the forest. During the forest rehabilitation, the forest floor was developed, soil physical and chemical properties were improved, and their water conservation functions were enhanced gradually along with the stand development. Based on the total and effective water-holding capacity of forest floor and soil （0--40 cm）, the order of the water conservation function for the forest stands studied was： 65-year stand （2 415,645 t/hm^2） 〉 48-year stand （2 407,634 t/hm^2） 〉 36-year stand （2 273,562 t/hm^2） 〉 18-year stand （2 079,462 t/hm^2）, indicating that the hydrological effect of soil was greater significantly in the old stand than in the young stand.
出处
《水土保持学报》
CSCD
北大核心
2009年第1期177-181,共5页
Journal of Soil and Water Conservation
基金
国家自然科学基金项目(No.30471386)
关键词
常绿阔叶林
水源涵养
天然次生林
土壤性质
evergreen broad-leaved forest
water conservation function
secondary forest
soil properties
作者简介
徐小牛（1961-），男，教授，博士生导师，从事森林培育及生物地球化学研究。E-mail：xnxu61@yahoo．com．cn
