安徽肖坑亚热带常绿阔叶林土壤水源涵养功能的研究  

Water conservation function of subtropical evergreen broad-leaved forest in Xiaokeng,Anhui Province

作　　者：王雪梅[1] 王勤[1] 丁增发[1] 徐小牛[1] 

机构地区：[1]安徽农业大学林学与园林学院,合肥230036

出　　处：《安徽农业大学学报》2008年第3期362-367,共6页Journal of Anhui Agricultural University

基　　金：国家自然科学基金项目(30471386)资助

摘　　要：对安徽肖坑亚热带常绿阔叶林不同林龄阶段林分的土壤物理性质、凋落物持水量以及林地土壤蓄水性能等进行研究。结果表明,不同林分的土壤物理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:近熟林(2152和244 t.hm-2)>中龄林(2010和227 t.hm-2)>幼龄林(1883和186 t.hm-2)。近熟林土壤的水源效应显著高于幼龄林。Investigation on soil physical properties,water-holding capacity of forest floor and soil for the different age-stages of a subtropical evergreen broad-leaved forest was conducted in Xiaokeng, Southern Anhui Province, and the results 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 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 litter and soil （0 -40 cm）, the order of the water conservation function for the forest stands was as pre-matured stand （2 152 and 244 t·hm^ -2 ） 〉 mid-aged stand （2 010 and 227 ·hm^-2） 〉 young stand （1 883 and 186 t·hm^-2）, indicating that the hydrological effect of soil was greater significantly in the pre-matured stand than that in the young stand.

关 键 词：常绿阔叶林 水源涵养 天然次生林 持水量 土壤性质 

分 类 号：S715.7[农业科学—林学] S152.7