| 珠三角城市群地区都市农业功能演变及其协同-权衡关系 |
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| 引用本文： | 杨忍,刘芮彤.珠三角城市群地区都市农业功能演变及其协同-权衡关系[J].地理研究,2022,41(7):1995-2015. |
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| 作者姓名： | 杨忍 刘芮彤 |
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| 作者单位： | 1.中山大学地理科学与规划学院,广州5102752.中山大学土地研究中心,广州510275 |
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| 基金项目： | 国家自然科学基金项目（42171193、41871177）；;广东省重点领域研发计划（2020B0202010002）； |
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| 摘 要： | 以珠三角城市群地区的县（区）为研究单元,从生产供给、经济发展、社会保障和生态保育四个维度构建都市农业功能评价指标体系,利用熵值法、时空差异诊断模型、Spearman秩相关系数法和双变量局部空间自相关模型等对2005年、2012年和2019年珠三角地区都市农业多维功能演变及协同-权衡关系进行测度。结果表明：① 2005—2019年,珠三角地区都市农业的生产供给、经济发展和社会保障功能均值先下降后上升而生态保育功能反之;生产供给和生态保育功能总体呈现稳定的外部较强而中心偏弱的空间格局,经济发展和社会保障功能的空间分布格局变化较大。② 时间上,2005年珠三角都市农业经济发展功能较其他功能相对独立发展,2012年功能之间权衡关系显现,2019年各功能之间以协同关系为主;空间上,珠三角地区都市农业生态保育功能与其他三项功能的协同-权衡关系较为稳定,社会保障功能与生产供给、经济发展功能的协同-权衡关系较为稳定。③ 都市农业功能演变及协同-权衡关系发展具有阶段性特征,大致呈现“相互独立/低位协同-相互权衡-高位协同”的演化规律。
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| 关 键 词： | 都市农业 农业多功能 农业去中心化 协同与权衡 珠三角城市群 |
| 收稿时间： | 2021-08-06 |
Functional evolution and collaboration/trade-off relationship of urban agriculture in the Pearl River Delta urban agglomeration |
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| YANG Ren,LIU Ruitong.Functional evolution and collaboration/trade-off relationship of urban agriculture in the Pearl River Delta urban agglomeration[J].Geographical Research,2022,41(7):1995-2015. |
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| Authors: | YANG Ren LIU Ruitong |
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| Institution: | 1. School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China2. Land Research Center, Sun Yat-sen University, Guangzhou 510275, China |
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| Abstract: | Urban-rural integration is a new demand for the development of urban-rural relations, and urban agriculture is a new format for coordinating the development of urban-rural integration. Its functional evolution and collaboration/trade-off relationship are worthy of attention. Constructing an evaluation index system from four dimensions of production supply, economic development, social security and ecological conservation, and using entropy weight method, spatio-temporal differences identifying model, Spearman's rank correlation coefficient method and bivariate local spatial autocorrelation model, this study comprehensively evaluated the multifunctional evolution and collaboration/trade-off relationship of urban agriculture at the county level in the Pearl River Delta (PRD) urban agglomeration from 2000 to 2015. The main results are as follows: (1) From 2000 to 2019, the average value of the production supply, economic development and social security functions of urban agriculture decreased first and then increased, while that of the ecological conservation function went the other way in the PRD urban agglomeration. The production supply and ecological conservation functions presented a stable spatial pattern with strong externality and weak centre, while the spatial distribution pattern of economic development and social security functions changed greatly. (2) In terms of temporal pattern, urban agricultural economic development functions developed relatively independently compared with other functions in 2005, the trade-off relationship among functions appeared in 2012, the collaboration between functions was the main relationship in 2019. As for spatial pattern, the collaboration/trade-off relationship between urban agricultural ecological conservation function and the other three functions are relatively stable, and the collaboration/trade-off relationship between urban agricultural social security, production supply and economic development function are relatively stable in the study area. (3) Functional evolution and collaboration/trade-off relationship of urban agriculture are characterized by stages, and the evolution law is "mutual independence/low level collaboration—mutual trade-off—high level collaboration". By revealing the spatio-temporal evolution pattern of multi-functional trade-offs and synergies of urban agriculture in the PRDelta urban agglomeration, and summarizing the internal logic mechanism and phased law of its evolution, the paper aims to provide scientific support for the coordinated development of agricultural multi-functional development and green development in metropolitan areas. |
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| Keywords: | urban agriculture agricultural multifunction agricultural decentralization collaboration/trade-off Pearl River Delta urban agglomeration |
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