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Study on the variation of arable land use and management countermeasures under rapid urbanization: the application of a gravity model in a regional perspective

机译：快速城市化背景下耕地利用变化与管理对策：重力模型在区域视角下的应用

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摘要

Scientifically determining the characteristics of arable land use in different regions is significant in promoting arable land protection. Most studies on the changes in arable land focus on an isolated analysis of the impact of urban development on arable land. Studies on the influence mechanism of regional spatial forces in different cities from the macro perspective are limited. A gravity model and ArcGIS spatial analysis methods were used to analyze the characteristics and driving mechanisms of arable land changes in different urban function orientations from the perspective of interregional economic interaction. We hope to provide guidance for the establishment of arable land protection in a similar city circle. The results indicated the following: (1) During the study period, the geographic range of arable land with strong dynamic changes (average annual change exceeding 1.5%) gradually widened from the core area to the surrounding area, while the annual change rate decreased. (2) There is a strong correlation between the change in arable land use and the scope of gravitational action. The dynamic changes in arable land in areas with strong gravitational relationships with the core area are strong, while in the weak gravitational areas that are less affected by the core area, the average annual rate of change is nearly below 1%. (3) In the 10-year study period, the overall changing trend of the radiation circle in the core area expanded. The gravitational value where the breaking point falls within its own administrative division is more related to the change of its arable land area, and the greater the gravitational attraction is, the more likely the correlation. In a city circle, it is essential to both protect arable land resources and promote coordinated economic development. Future research on arable land utilization in different city circles should consider overall area development. Different functional areas can be determined by calculating the gravitational value, then regional development potential and key development types can be determined, and arable land protection measures can be optimized based on these functional areas.
机译：科学确定不同地区的耕地利用特征对促进耕地保护具有重要意义。关于耕地变化的大多数研究都集中于对城市发展对耕地的影响的孤立分析。从宏观角度研究不同城市区域空间力量的影响机制是有限的。从区域间经济互动的角度，利用引力模型和ArcGIS空间分析方法，分析了不同城市功能定位下耕地变化的特征和驱动机制。我们希望为在类似城市圈建立耕地保护提供指导。结果表明：（1）在研究期内，动态变化剧烈（平均年变化率超过1.5％）的耕地范围从核心区域向周边地区逐渐扩大，而年变化率却逐渐减小。 （2）耕地用途的变化与引力作用范围之间有很强的相关性。与核心区具有很强引力关系的地区的耕地动态变化很强，而在核心区影响较小的弱引力区，耕地的年平均变化率几乎低于1％。 （3）在为期10年的研究期内，核心区域辐射圈的总体变化趋势有所扩大。折点落在其自己的行政区划内的引力值与其耕地面积的变化关系更大，引力的吸引力越大，其相关性就越大。在城市圈中，保护耕地资源和促进经济协调发展至关重要。未来不同城市圈的耕地利用研究应考虑整个地区的发展。通过计算重力值可以确定不同的功能区域，然后可以确定区域发展潜力和关键发展类型，并可以基于这些功能区域优化耕地保护措施。

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  • 来源
    《Environmental Monitoring and Assessment》 |2019年第2期|120.1-120.20|共20页
  • 作者

    Song Lei; Cao Yingui; Zhou Wei; Kuang Xinyu; Luo Gubai;

  • 作者单位

    China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China|Minist Land & Resources Peoples Republ China, Key Lab Land Consolidat, Beijing 100035, Peoples R China;

    China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China|Minist Land & Resources Peoples Republ China, Key Lab Land Consolidat, Beijing 100035, Peoples R China;

    China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China;

    China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Arable land use; Gravity model; City circle; Urban function; Arable land preservation;

    机译：耕地利用;重力模型;城市圈;城市功能;耕地保护;

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