以坡耕地作为对照,对丹江口库区栎类阔叶林、马尾松林、松柏混交林、柑桔园、灌木林6个主要植被类型的水源涵养功能采用层次分析法(AHP)进行了定量分析和综合评价。结果表明:不同类型林冠截留率平均为2064％;林地凋落物持水量平均185mm;林地土壤总蓄水量平均87978t／hm2;地表径流平均为2519mm;土壤侵蚀量平均为1040t／hm2。综合评价结果表明栎类阔叶林的水源涵养功能最强,其后依次是松柏混交林、马尾松林、柑桔园、灌木林和坡耕地。
Abstract
The sloping land was used as control, and the water conservation capacity of broadleaf forest , Pinus massoniana forest, pine and cypress mixed forest, citrus orchard and shrub was studied in Danjiangkou reservoir area. Then we used the method of analytic hierarchy process(AHP) to evaluate the water conservation capacity of six vegetation types. The results showed that the average canopy percentage of interception was 20.64%; the average waterholding capacity of litter form was 1.85mm; the average waterholding capacity of soil was 879.78t/hm2; the average surface runoff was 251.9mm; the average soil erosion was 10.40t/hm2. The water conservation capacity of six vegetation types was in order that broadleaf forest was the best, followed by pine and cypress mixed forest, P. massoniana forest, citrus orchard, shrub and sloping land.
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基金
收稿日期：2007-09-17修回日期：2008-03-20 基金项目：湖北省科技厅“十五”科技攻关计划(2004AA204B01) 作者简介：刘学全(1966—),研究员,研究方向为森林生态学。Email:cuihxia@tom.com 引文格式：刘学全,唐万鹏,崔鸿侠.丹江口库区主要植被类型水源涵养功能综合评价［J］.南京林业大学学报：自然科学版，2009,33(1):5963.
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