摘要
【目的】将定量评价和定性评价相结合,分析南京内秦淮河东段各项指标的适宜性,构建后评价体系模型,明确城市河道修复的重点方向。【方法】以南京内秦淮河东段为研究对象,从生态因素、社会因素、景观因素3方面入手,对城市河道开放空间景观修复后的景观现状、历史文化和人文特征等进行调研。利用专家问卷所得数据,通过层次分析法(AHP)确定各指标权重,构建城市河道开放空间景观修复后评价模型,结合群众问卷调查所得数据,通过距离指数法得到南京内秦淮河东段景观修复后评价等级。【结果】准则层中生态因素的权重最高,为0.5214,占总比例的52.14%;其次为社会因素,权重为0.2537;最后是景观因素,权重为0.2249。在指标层,生态因素中水质的权重值最高,为0.2218;社会因素中可达性的权重最高,为0.1021;景观因素中休闲娱乐功能的权重值最高,为0.1184;南京内秦淮河东段景观修复后评价等级为适宜(距离指数为0.23),其中生态因素的距离指数(0.19)为适宜,社会因素的距离指数(0.14)为适宜,景观因素的距离指数(0.42)为基本适宜。通过指标因子权重的排序,可以看出水质的改善是城市河道开放空间的关键因素,南京内秦淮河东段景观修复总体上取得了良好的成果,但河道的亲水性有待进一步改善。通过对不同年龄结构人群评价结果的数据分析得出,在安全性、休闲娱乐功能与亲水及近水驳岸3个指标上,青壮年、中老年两个年龄层次人群评价结果有显著差异。【结论】本研究所构建的城市河道开放空间景观修复后评价模型,给城市河道开放空间景观修复的评价工作提供了一种客观、准确的评价方法,可为不同条件下的城市河道开放空间景观修复后评价提供理论依据。
【Objective】The aim of this study was to clarify the key direction of urban river rehabilitation by evaluating the applicability of various indicators in the eastern section of the Inner Qinhuai River in Nanjing,combining quantitative evaluation with qualitative evaluation,and constructing a post-evaluation system model.【Method】Three aspects of the eastern section of the inner Qinhuai River in Nanjing were examined:ecological factors,social factors and landscape factors.We investigated the landscape status,historical culture and human characteristics of urban river open space landscape restoration.Using the data obtained from the expert questionnaire,we determined the weight of each index through the analytic hierarchy process(AHP)and constructed a post-rehabilitation evaluation model of urban river open space landscape restoration.Combined with the data obtained from the field questionnaire survey,the post-rehabilitation evaluation of the eastern section of the inner Qinhuai River in Nanjing was obtained via the distance index method.【Result】The ecological factor had the highest weight value in the criterion layer with a weight of 0.5214,accounting for52.14%of the total proportion,followed by the social factor with a weight of 0.2537,and finally the landscape factor with a weight of 0.2249.In the indicator layer,the weight value of water quality in ecological factors was up to 0.2218,the weight value of accessibility in social factors was up to 0.1021,and the weight value of recreational functions in landscape factors was up to 0.1184.The post-rehabilitation evaluation level of the eastern section of the inner Qinhuai River in Nanjing(distance index was 0.23),the distance index of ecological factors(0.19),the distance index of social factors(0.14),and the distance index of landscape factors(0.42)were all appropriate.By ordering the weights of the index factors,it becomes clear that improvement of water quality is the most critical factor for the open space of urban rivers.The landscape restoration of
作者
曹加杰
王杰
吴向崇
丁昌辉
王伟希
王浩
CAO Jiajie;WANG Jie;WU Xiangchong;DING Changhui;WANG Weixi;WANG Hao(College of Landscape Architecture,Nanjing Forestry University,Nanjing 210037,China;Sanya Daxing New Landscape Ecological Co.Ltd.,Sanya 572000,China)
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第3期195-201,共7页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
江苏省高校“青蓝工程”学术带头人培养对象资助项目(2018)
国家自然科学基金项目(31400594)
江苏省高校哲学社会科研研究项目(2016SJB630010)
江苏高校品牌专业建设工程项目(PPZY2015A063)。
关键词
城市河道开放空间
景观修复
后评价
层次分析法
南京秦淮河
urban river open space
landscape restoration
post-evaluation
analytic hierarchy process(AHP)
inner Qinhuai River in Nanjing
