| 城镇化进程中耕地多功能权衡/协同关系演变及其驱动机制 |
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| 引用本文： | 李怡,方斌,李裕瑞,璩路路,李冬杰.城镇化进程中耕地多功能权衡/协同关系演变及其驱动机制[J].农业工程学报,2022,38(8):244-254. |
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| 作者姓名： | 李怡 方斌 李裕瑞 璩路路 李冬杰 |
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| 作者单位： | 1. 南京师范大学地理科学学院，南京 210023；2. 南京师范大学新型城镇化与土地问题研究中心，南京 210023；5. 江苏省地理信息资源开发与利用协同创新中心，南京 210023；;3. 中国科学院区域可持续发展分析与模拟重点实验室，北京 100101；4. 中国科学院地理科学与资源研究所，北京 100101；;6. 重庆大学公共管理学院，重庆 400044 |
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| 基金项目： | 国家自然科学基金项目（42071229，41671174）；江苏省高校优势学科建设工程项目（164320H116） |
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| 摘 要： | 城镇化进程中中国耕地利用功能变化深刻，探究影响耕地多功能协同与权衡的城镇化因素更是平衡地区经济发展与耕地保护的关键。该研究以淮海经济区为例，选取2000-2018年连续年份时间，从耕地生产、社会和生态三个维度构建评价体系分析耕地多功能时空特征，利用Spearman秩相关分析揭示耕地多功能间权衡与协同的时空演化，运用调节效应模型定量剖析权衡与协同演化的城镇化驱动机制。结果表明：1）耕地生产功能整体呈持续增长趋势，社会功能整体呈持续下降趋势，生态功能整体呈波动下降趋势。2）耕地生产与社会功能整体呈弱权衡向弱协同转变，且大部分地市内部的两功能权衡关系有所缓解，协同区域逐渐向东部转移。耕地生产与生态功能整体呈权衡增长趋势，但部分地市内部的两功能关系趋向协同发展，主要分布在鲁南和苏北地区。3）耕地生产与社会功能相互关系主要受城乡收入差距、人口城镇化率以及居民消费能力的影响。耕地生产与生态功能相互关系则受居民消费能力的显著影响。同一驱动因子在不同水平下对耕地多功能之间权衡与协同关系的作用程度不同。为此提出促进淮海经济区耕地多功能协同发展的策略建议。
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| 关 键 词： | 耕地多功能 权衡 协同 演变 驱动机制 城镇化 淮海经济区 |
| 收稿时间： | 2022/1/27 0:00:00 |
| 修稿时间： | 2022/4/1 0:00:00 |
Trade-off and synergy evolution of farmland functions and its dynamic mechanism in the process of urbanization |
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| Li Yi,Fang Bin,Li Yurui,Qu Lulu,Li Dongjie.Trade-off and synergy evolution of farmland functions and its dynamic mechanism in the process of urbanization[J].Transactions of the Chinese Society of Agricultural Engineering,2022,38(8):244-254. |
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| Authors: | Li Yi Fang Bin Li Yurui Qu Lulu Li Dongjie |
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| Affiliation: | 1. School of Geography Science, Nanjing Normal University, Nanjing 210023, China; 2. Research Center of New Urbanization and Land Problem, Nanjing Normal University, Nanjing 210023, China; 5. Jiangsu Provincial Geographic Information Resources Development and Utilization Cooperative Innovation Center, Nanjing 210023, China;3. Key Laboratory of Regional Sustainable Development Modeling, Chinese Academy of Sciences, Beijing 100101, China; 4. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;;6. School of Public Policy and Administration, Chongqing University, Chongqing 400044, China |
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| Abstract: | Abstract: Farmland functions have undergone the profound changes in the process of urbanization. It is critical to determine the urbanization driving factors of trade-off and synergy of farmland functions for the better balance between local economic improvements and farmland protection. Taking Huai-Hai Economic Zone as an example, this study aims to establish the assessment system of farmland functions from the dimensions of production, society, and ecology. Spearman Rank Correlation was employed to reveal the spatial and temporal variations of trade-off and synergy of farmland functions from 2000-2018. Subsequently, the moderating effect model was adopted to quantify the driving mechanism of population, land, and economic urbanization, urban-rural income gap, residents'' consumption level on trade-off and synergy of farmland functions. The results indicated that: 1) The overall farmland production function was growing continuously, and the growth rate slowed down in the later period. The overall farmland social function dropped continuously, and the decline rate increased in the later period. The overall farmland ecological function declined in 2000-2009 and rebounded in 2009-2018, and it still didn''t rise to the initial level. Furthermore, the farmland production functions of all cities were achieved the growth in different cities, where there was the most significant growth of northern Jiangsu. The share of cities with declining farmland social function was 65%, and the growth areas were strip in shape, mainly distributed in the northern Jiangsu and the southern Shandong. Distribution of cities with declining farmland ecological function were the most extensive, accounting for 65%, where the growth areas were mainly distributed in southern Shandong. 2) In the evolution of relationship between farmland functions, the relationship between the farmland production and ecological function was changed from the insignificant trade-off to significant trade-off, and the relationship between the farmland production and social function was changed from the insignificant trade-off to insignificant synergy. Specifically, the trade-off between the farmland production and social function was the most widely distributed, and the trade-off relationship in most cities had been alleviated from 2009 to 2018, the synergy area of which showed the expansion and shifted to the east in the study area. The relationship between the farmland production and ecological function in all cities was trade-off from 2000 to 2009, indicating the synergy in some cities from 2009 to 2018, the synergy area of which was mainly concentrated in the middle south of Shandong and the adjacent northern Jiangsu with the block distribution. 3) The relationship between the farmland production and social function was mainly affected by the urban-rural income gap, population urbanization rate, and residents'' consumption level. The synergic development of them was significantly promoted by the residents'' consumption level and population urbanization rate, and the growth of urban-rural income gap inhibited the trade-off. The weakening trade-off between the farmland production and ecological function was attributed to the growth of residents'' consumption level. Some strategic suggestions were also addressed to promote the synergy of farmland functions in the Huai-Hai Economic Zone. |
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| Keywords: | farmland functions trade-off synergy evolution dynamic mechanism urbanization Huai-Hai Economic Zone |
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