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长株潭城市群都市农业可持续发展综合评价
周子英1, 向昌盛2, 米振华1
1.湖南工程学院 管理学院, 湖南 湘潭 411104;2.湖南工程学院 计算机与通信学院, 湖南 湘潭 411104
摘要:
[目的] 在借鉴国内外有关都市农业可持续发展评价的基础上,全面考虑都市农业的多功能性,构建都市农业可持续发展评价指标体系,对长株潭城市群都市农业可持续发展进行评价,为城市群建设提供理论支撑。[方法] 首先利用层次分析法确定各指标的主观权重,然后利用指标数据的变化情况,求取各指标的熵权,利用主观权重与熵权确定各指标的复合权重,最后利用TOPSIS模型对2010-2017年长株潭城市群都市农业可持续发展水平进行评价与分析。[结果] ①2010-2017年间,长株潭城市群都市农业可持续发展水平相对贴近度由2010年的0.306 5增加到了2017年的0.523 9;②各分功能的相对贴近度变化趋势各异,但总体呈上升的发展态势。[结论] 长株潭城市群都市农业可持续发展水平呈波动上升的发展态势,可持续水平由"低水平"上升为"中等水平";都市农业的经济功能已呈现出逐步弱化与边缘化的趋势,越来越多地展示出了都市农业的社会功能、生态功能与示范教育功能。为了进一步促进长株潭城市群都市农业的可持续发展水平,在进行长株潭城市群建设规划时,必须保持一定数据与规模的都市农业景观用地,保证都市农业生态系统结构完整,同时需要加大经济功能所占比重,以保持各分功能更为协调。
关键词:  都市农业  多功能  TOPSIS模型  长株潭城市群
DOI:10.13961/j.cnki.stbctb.2019.05.039
分类号:F303.4;F127
基金项目:湖南省哲学社会科学基金项目“基于田园综合体视角的武陵山片区精准扶贫机制研究”(18YBX008);湖南省教育厅项目“一体化背景下长株潭城市群都市农业可持续发展综合评价研究”(15C0346);湖南省自科基金面上项目“湖南省重金属污染地区土地轮作休耕试点模式与效果评价研究”(2019JJ40058);湖南省社会科学评审委员会课题(XSP19YBC036)。
Comprehensive Evaluation of Sustainable Development of Urban Agriculture in Changsha-Zhuzhou-Xiangtan Urban Agglomeration
Zhou Ziying1, Xiang Changsheng2, Mi Zhenhua1
1.College of Management, Hu'nan Institute of Engineering, Xiangtan, Hu'nan 411104, China;2.College of Computer and Communication, Hu'nan Institute of Engineering, Xiangtan, Hu'nan 411104, China
Abstract:
[Objective] Based on the evaluation of sustainable development of urban agriculture in China and abroad, and considering the multi-function of urban agriculture, an evaluation index system for the sustainable development of urban agriculture was constructed to evaluate the sustainable development of urban agriculture in Changsha-Zhuzhou-Xiangtan urban agglomeration and provide theoretical support for the construction of an urban agglomeration.[Methods] First, the subjective weight of each index was determined using the analytic hierarchy process. Then, using the change of index data, the entropy weight of each index was obtained and the composite weight of each index was determined by subjective weight and entropy weight. Finally, the sustainable development level of urban agriculture in the Changsha-Zhuzhou-Xiangtan urban agglomeration from 2010 to 2017 was evaluated and analyzed based on the TOPSIS model.[Results] ① During 2010-2017, the degree of urban agriculture sustainable development in the Changsha-Zhuzhou-Xiangtan urban agglomeration increased from 0.306 5 to 0.523 9. ② The sustainable development level trend for each sub-function was different, but it was on the rise overall.[Conclusion] The sustainable development level of urban agriculture in the Changsha-Zhuzhou-Xiangtan urban agglomeration fluctuated and increased from "low level" to "medium level". The economic function of urban agriculture gradually weakened and became marginalized. Increasingly more urban agriculture showed its social function, ecological function, and demonstration education function. To promote the sustainable development level of urban agriculture in the Changsha-Zhuzhou-Xiangtan urban agglomeration, it is necessary to maintain a certain amount of data and scale of the urban agricultural landscape land during the construction planning of the urban agglomeration, ensure the integrity of urban agricultural ecosystem structure, and increase the proportion of economic functions and develop each sub-function in a more coordinated way.
Key words:  urban agriculture  multifunction  TOPSIS model  Changsha-Zhuzhou-Xiangtan urban agglomeration