广州城市河涌景观综合评价研究

河涌是城市水系的重要组成部分。城市河涌的景观整治对改善城市生态环境,提升城市建设品味,提高人们生活质量都具重要意义。应用层次分析法,建立广州河涌景观评价体系,选取水体因素、植物群落景观、环境的协调性为评价要素层。水体因素选取了水质质量、河涌的亲水性、河涌活动的安全性3个具体的评价因子;植物群落景观则由植物物种多样性、植物景观空间多样性、植物观赏特性多样性、植物健康状况4个具体的评价因子组成;环境的协调性包括河涌岸线处理自然性、整体环境的协调性。确定了各评价要素和评价因子的权重,以广州及西面的佛山市共12条河涌为实例,对河涌的景观进行客观定量的评价,为以后的河涌规划设计起到一定的指导作用。

Comprehensive Evaluation of Sewage Stream Landscape in Guangzhou City

Sewage stream is an important component of city water systems and special waterfront area of cities.Landscape renovation of city sewage streams contributes greatly to improve urban ecological environments,construction styles and life qualities of the people.This study used Analytic Hierarchy Process（AHP） approach to construct evaluation systems of sewage stream landscapes in Guangzhou City.We selected water systems,landscape of plant community and environmental harmony as the main evaluation hierarchy.Water quality,affinity of sewage stream and safety of sewage stream activities were selected as evaluation factors of water systems.Species diversity,landscape space diversity,ornamental characteristic diversity and plant health status were selected as evaluation factors of landscape of plant community.Environmental harmony includes naturalness of sewage stream line treatment and harmony of the whole environments.This study set up the key evaluation factors and their weights,and quantitative evaluation of sewage stream landscape based on 12 sewage streams in Guangzhou and Foshan Cities,which may be valuable in future plan and design of sewage streams.