摘要
阐述了建立城市森林树种综合评价体系的指导思想与基本原则。建立了由7个抗性功能指标、5个生态功能指标5、个美学功能指标组成的城市森林树种综合评价指标体系;应用层次分析法(AHP),利用13位专家对评价指标成对比较的平均值构建了判断矩阵,进而确定了各层指标的权重值,并进行了一致性检验。研究表明,固碳释氧、抗污染、防风固沙、抗旱、滞尘5项指标的权重值最高,这与沈阳地区的基本状况以及城市森林树种选择的基本原则有着高度的一致性,研究在城市树种评价方面做了一次定性与定量、主观与客观相结合的有益尝试。
The paper describes of application of the analytical hierarchy pwcess （AHP） constructing an evaluation system for tree species of UF in Shenyang . The system includes resistant objective identified by 7 indicators, ecological and aesthetic objectives both identified by 5 indicators. The study generates square objectives and indicators matrixes by the average ratios based on the independent judgments of 13 experts, and computes the consistency ratios and gains acceptable results. The study shows that indicators includes carbon storage, pollution resistance, wind breaking, drought resistance and dust absorption have the highest weightings. This is consistent with the situation of the study area and the principles of tree selection of UF. Therefore the paper develops a systematic procedure for combination objective/quantitative model and subjective/expert judgments for urban tree evaluation that no objective model exsits.
出处
《辽宁林业科技》
北大核心
2006年第3期1-3,15,共4页
Liaoning Forestry Science and Technology
基金
国家自然科学基金重点项目(90411019)
中国科学院知识创新工程重要方向项目(KZCX3-SW-43)
关键词
城市生态
城市森林
树种评价
指标体系
层次分析法
urban ecology
urban forest
tree species evaluation
evaluation system
analysis hierarchy process （AHP）
