Spatial-temporal Changes and Driving Forces of Cultivated Land at County Level in Hu'nan Province from 2009 to 2018

Chen Songlin; Zhao Xiang; Liu Zhongqiu; Pan Yupiao; Wang Xu

doi:10.13961/j.cnki.stbctb.2022.03.035

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Spatial-temporal Changes and Driving Forces of Cultivated Land at County Level in Hu'nan Province from 2009 to 2018

- Spatial-temporal Changes and Driving Forces of Cultivated Land at County Level in Hu'nan Province from 2009 to 2018
- Bulletin of Soiland Water Conservation Vol. 42, Issue 3, Pages: 274-283(2022)
- 作者机构：
  
  1. 湖南省第三测绘院,湖南,长沙,410007
  2. 武汉大学资源与环境科学学院,湖北,武汉,430079
  3. 北京吉威空间信息股份有限公司,北京,100043
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.03.035
  CLC： F301.2
- Published：2022
- 稿件说明：
移动端阅览
Chen Songlin, Zhao Xiang, Liu Zhongqiu, et al. Spatial-temporal Changes and Driving Forces of Cultivated Land at County Level in Hu'nan Province from 2009 to 2018[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 274-283.
DOI：

Chen Songlin, Zhao Xiang, Liu Zhongqiu, et al. Spatial-temporal Changes and Driving Forces of Cultivated Land at County Level in Hu'nan Province from 2009 to 2018[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 274-283. DOI： 10.13961/j.cnki.stbctb.2022.03.035.

摘要

[目的

]

分析近年来湖南省县域单元耕地的时空变化特征及驱动力，为耕地保护政策的制定提供决策依据。[方法

]

基于湖南省2009—2018年的土地利用变更调查数据库，利用耕地变化动态度、景观格局指数和地理探测器模型，从数量规模、景观格局和驱动力等方面分析湖南省县级行政单元的耕地变化。[结果

]

①2009—2018年，湖南省耕地总量累计增加379.02 km

。新增耕地主要分布在环洞庭湖地区、湘中盆地群和湘西北等土地整治重点地区。②在土地综合整治等工程的积极作用下，湖南省耕地图斑形状趋于规整化；而受城镇化和基础设施建设的影响，全省耕地破碎化趋势明显。③地方财政收支情况、人口增长和地形条件是湖南省2009—2018年间耕地变化的主要驱动力因子。各驱动因子之间通过双因子增强和非线性增强等交互作用实现对耕地时空变化的综合影响。[结论

]

湖南省耕地保护成效显著，但依然面临许多挑战。新时期全省耕地保护应该处理好国土空间开发与保护之间的关系；新增耕地的开发应当更加注重对农村低效建设用地的复垦而减少对生态空间的挤占；优化耕地保护政策，切实提高现有耕地的经济产出效益，发挥市场机制在耕地保护中的长效与可持续的作用。

Abstract

[Objective] The characteristics of spatial-temporal cultivated land change and its driving forces at county level in Hu'nan Province from 2009 to 2018 were analyzed in order to support the formulation of farmland protection policies.[Methods] The cultivated land dynamic index

landscape indices

and the Geodector model were used to determine the area

spatial distribution

and driving forces of cultivated land changes in Hu'nan Province based on land survey data.[Results] ① The total area of cultivated land increased by 379.02 km2 in Hu'nan Province from 2009 to 2018. The newly reclaimed cultivated land was mainly located in the area around Dongting Lake

the Central Hu'nan Basin group

and Northwest Hu'nan Province. ② Due to the implementation of land consolidation projects

the shapes of cultivated land patches became more and more regular over the past ten years. On the other hand

as the mean area of cultivated land patches became smaller and smaller

cultivated land patches in Hu'nan Province showed a significant trend towards fragmentation from 2009 to 2018 that was mainly due to urban-rural development and infrastructure construction. ③ The fiscal revenue and expenditure of local governments

population growth

the output value of agriculture were the main driving forces of cultivated land changes in Hu'nan Province from 2009 to 2018. These driving factors produced a comprehensive impact on the changes of cultivated land through interactions such as dual-factor enhancement and nonlinear enhancement.[Conclusion] The protection of cultivated land in Hu'nan Province has achieved remarkable results in the past 10 years. However

the protection of cultivated land in Hu'nan Province still faces some challenges. Therefore

cultivated land protection in Hu'nan Province during the next decade should give greater attention to the trade-offs between the development and protection of land resources. Development of new cultivated land should focus on reclamation of inefficient construction land in rural areas

rather than on occupying ecological space. Additionally

Hu'nan Province should also optimize policies for the protection and utilization of cultivated land that will promote the productivity of cultivated land so that market factors can play a stabilizing and sustaining role in cultivated land protection.

关键词

Keywords

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