园林绿化树种灰色综合评价与分级选择的研究

Study on Graduation and Grey Comprehensive Evaluation for Landscape Plant

本文确定了生态适应性、观赏性、生态效益、保健功能、抗病虫能力、抗污染能力和经济效益7个评价指标,利用灰色关联理论建立了园林绿化树种灰色综合评价与分级模型。对衡阳市常见的84种绿化树种进行了综合评价与分级,评价结果为:Ⅰ级树种有20种;Ⅱ级树种有22种;Ⅲ级树种有23种;Ⅳ级树种有19种。

Ecological effect and integral fuctions of the urban greenbelt depend mainly on rational selection and layout of the landscape plant. The comprehensive evaluation to the quality of the landscape plant can supply scientific basis for layout of the landscape plant of the urban greenbelt. The paper confirms seven which are ecological adaptability, ornamental effect, ecological benefit, sanitarian function, diseases and pests, anti-pollution and economic benefit, and based on grey interrelated graduation and grey comprehensive evaluation for landscape plant. 84 species of greening trees evaluation indexes resistance to plant theory, estabishes commonly used in Hengyang were evaluated and graded, the results showed that the number of class Ⅰ was 20, class Ⅱ was 22, class Ⅲ was 20 and class Ⅳ was 19.