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城市河道开放空间景观修复后评价研究——以南京内秦淮河东段为例(PDF/HTML)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2020年3期
Page:
195-201
Column:
研究论文
publishdate:
2020-06-05

Article Info:/Info

Title:
Post?evaluation of urban river open space landscape restoration:a case study of the eastern part of the Inner Qinhuai River in Nanjing
Article ID:
1000-2006(2020)03-0195-07
Author(s):
CAO Jiajie1 WANG Jie1 WU Xiangchong2 DING Changhui1 WANG Weixi1 WANG Hao1
(1.College of Landscape Architecture, Nanjing Forestry University, Nanjing210037,China; 2.Sanya Daxing New Landscape Ecological Co. Ltd., Sanya572000, China)
Keywords:
urban river open space landscape restoration post-evaluation analytic hierarchy process(AHP) inner Qinhuai River in Nanjing
Classification number :
TV82
DOI:
10.3969/j.issn.1000-2006.201809023
Document Code:
A
Abstract:
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 0.521 4, accounting for 52.14% of the total proportion, followed by the social factor with a weight of 0.253 7, and finally the landscape factor with a weight of 0.224 9. In the indicator layer, the weight value of water quality in ecological factors was up to 0.221 8, the weight value of accessibility in social factors was up to 0.102 1, and the weight value of recreational functions in landscape factors was up to 0.118 4. 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 the eastern section of the inner Qinhuai River in Nanjing has achieved good results in general, but the hydrophilicity of the rivers needs to be further improved. Based on the analysis of the evaluation results of people in different age groups, it is concluded that there are significant differences in the evaluation results of young and middle-aged people on the three indicators of safety, recreational function, and hydrophilicity and near-water bank. Conclusion The post-recovery evaluation model of urban river open space landscape restoration constructed by this research provides an objective and accurate evaluation method for urban river open space landscape restoration. This can provide a theoretical basis for post-rehabilitation evaluation of urban river open space landscape under different conditions in the future.

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Last Update: 2020-06-11