摘要
本文用层次分析法确定权重，模糊数学方法确定各指标的得分值来评价森林涵养水源的能力，提出一套定性与定量相结合的评价森林涵养水源能力的指标体系。通过贯垭小流域定位观测材料的实际计算得出：桤柏混交林的水源涵养能力＞荒坡地＞纯柏木林＞农耕地，与实际情况相符合，说明这套指标体系和这种评价方法具有实用性。
おy synthtically using AHP determining weight of the indexes and using fuzzy subordination determining the values of the indexes to evaluate the capacity of forest water conservancy,this paper puts forward a set of indices and methods,which are fundamentally quantitative and combined qualitively for the evaluation of forestry water conservancy.By calculating on practical investigating datas of Guan Ya watershed station,the results have shown that water conservancy of mixed plantation between Cupressus funebris and alnus cremastogyne>desert meadow>pure plantation of Cupressus funebris>field.This accords with practical situation.This result shows that the set of indices and methods have been proved to be practical
出处
《四川林业科技》
北大核心
1997年第4期11-17,共7页
Journal of Sichuan Forestry Science and Technology
关键词
森林
涵养水源能力
综合评价
桤柏混交林
柏木林
Capacity of forest water conservancy,Evaluation,Mixed plantation between Alnus cremastogyine and Cuprssus funebris,Pure plantation of Cupressus funebris,Field and desert meadow
