辽西油松林水土保持效益评价  

Assessment of ecological benefits of Chinese pine in soil and water conservation forests in Western Liaoning Province

作　　者：杜晓军[1] 姜凤岐[1] 沈慧[1] 焦志华[2] 鹿天阁[3] 金亚荣 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]中国矿业大学北京校区,北京100083 [3]辽宁省建平县林业局,叶柏寿122400 [4]辽宁省凌源市南刘杖子林场,南刘杖子122528

出　　处：《生态学报》2003年第12期2531-2539,共9页Acta Ecologica Sinica

基　　金：中国科学院知识创新工程重要方向资助项目 (KZCX3 -SW-48) ;国家"九五"重点科技攻关资助项目 (96-0 0 7-0 1 -0 6)~~

摘　　要：利用 1 0 1块样地的调查资料 ,采用综合因子评价方法评价了辽西油松水土保持林的生态效益 ,把辽西油松水土保持林划分为低效、较低效、中效、较高效、高效五个等级 :其中牛河梁地区的油松人工林大都为低效林 ,欺天林场的油松人工林大都为中效林 ,南刘杖子林场的天然次生林大都为高效林。这一研究结果将为辽西油松水土保持林生态系统管理提供重要的科学依据。In this paper, the ecological benefits of Soil and Water Conservation Forests planted with Chinese pine (Pinus tabulaeformis) were assessed for 101 plots in Western Liaoning Province by using the comprehensive-index assessment method. The comprehensive-index assessment method is an indirect but effective method used for estimation, especially when the main functional indices are difficult to measure. In order to use this method, a system of estimation indices assessing the ecological benefits of forests was designed for Western Liaoning, including estimation criteria and classification of benefits. The types of forest ecological benefits were classified based on the weight value of every index (by Analytic Hierarchy Process, i.e. AHP) and the comprehensive estimate index (from the survey materials of forest stands).The Soil and Water Conservation Forests of Western Liaoning Province were divided into five classes using the comprehensive-index assessment method: lower-benefit forest, low-benefit forest, middle-benefit forest, high-benefit forest and higher-benefit forest. Most forests of the Niuheliang, Qitian, and Nanliuzhangzi regions were classified as low-benefit, middle-benefit, and high-benefit forests respectively. In Niuheliang region, lower-benefit, low-benefit and middle-benefit forests accounted for 79.4%, 14.7% and 5.9% respectively. In Qitian region, lower-benefit forest, low-benefit and middle-benefit forests were 4.5%, 22.7%, 72.7% respectively. In Nanliuzhangzi region, high-benefit and higher benefit forests were 16.7% and 83.3% respectively. The results showed that forest structural integrity (especially the forests' layer structure) has a great significance in the ability of Soil and Water Conservation Forests to provide ecosystem services. In particular, a key task for ecosystem management in these pine forests is the conservation of the herbage layer and the litter layer on the forest floor. The policy of forest protection should be adopted as an effective approach for ecosystem management in S

关 键 词：水土保持 水土保持林 效益评价 低效林 油松林 辽宁西部 

分 类 号：S714.7[农业科学—林学]