Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain

Zhang Yujia; Cai Haisheng; Zhang Xueling; Chen Liting; He Qinggang

doi:10.13961/j.cnki.stbctb.2023.03.029

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Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain

- Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain
- Bulletin of Soiland Water Conservation Vol. 43, Issue 3, Pages: 245-253(2023)
- 作者机构：
  
  江西农业大学江西省自然资源利用科技与管理创新研究基地/农业农村部鄱阳湖流域农业资源与生态重点实验室/南昌市鄱阳湖生态重点实验室/富硒农业产业发展研究中心,江西,南昌,330045
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2023.03.029
  CLC： F301.2;S341.1
- Published：2023
- 稿件说明：
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Zhang Yujia, Cai Haisheng, Zhang Xueling, et al. Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 245-253.
DOI：

Zhang Yujia, Cai Haisheng, Zhang Xueling, et al. Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 245-253. DOI： 10.13961/j.cnki.stbctb.2023.03.029.

摘要

[目的] 科学认知耕地多功能时空演变规律及驱动机制，为保障粮食安全和促进区域耕地多功能水平与社会经济发展相协调提供支持。[方法] 运用了熵权法、层次分析法、综合指数法、GIS空间可视化分析及地理探测器。[结果] ①2000—2020年鄱阳湖平原各县区耕地综合功能总体呈上升趋势，受社会经济发展水平影响显著，具体表现为耕地综合功能的提高优先发展于社会经济发展较快地区，如南昌县、安义县等南昌市周边地区。②20 a间鄱阳湖平原耕地多功能变化趋势不同，其中生产和景观美学功能呈现增长趋势，生态维持和社会保障功能则出现下降趋势，说明鄱阳湖平原耕地生产功能虽有所提高，但难以保障日益增长的粮食、经济需求，同时第二、三产业的飞速发展使耕地所能提供的经济贡献比重逐渐下降。③鄱阳湖平原耕地多功能发展水平受社会和自然两方面影响，社会因素可通过实施改善农业生产基础条件，保障农村居民最低收入，提高农村居民医疗福利标准等政策调节，自然环境方面则需要人类共同保护、修复生态环境。[结论] 多种因素共同影响鄱阳湖平原耕地多功能发展水平，合理制定耕地保护利用政策、保障农村居民生活水平对提高耕地多功能发展水平具有促进作用。

Abstract

[Objective] The spatial and temporal evolution patterns and driving mechanisms of multifunctional cropland were analyzed in order to provide support for ensuring food security and promoting the coordinated development of regional multifunctional cropland along with socio-economic development.[Methods] The entropy power method

hierarchical analysis method

comprehensive index method

GIS spatial visualization analysis

and geographic probe were used in this study.[Results] ① The comprehensive function of arable land in each county of Poyang Lake p lain generally increased from 2000 to 2020

and was significantly influenced by socio-economic development level. Specifically

improvement of the comprehensive function of arable land was given priority to areas with faster socio-economic development

such as Nanchang County

Anyi County

and other areas around Nanchang City. ② Different trends of multi-functional changes were observed for arable land in Poyang Lake plain during the 20 years of the study. Production and landscape aesthetic functions showed a growing trend

while ecological maintenance and social security functions show a decreasing trend. These patterns indicated that even though the production function of arable land in Poyang Lake plain improved

it was difficult to guarantee the growing food and economic demand

while the rapid development of secondary and tertiary industries gradually decreased the proportion of economic contribution that arable land can provide. ③ The multi-functional development level of arable land in Poyang Lake plain was influenced by both social and natural factors. The social factors could be regulated by policies such as improving the basic conditions of agricultural production

guaranteeing the minimum income of rural residents

and improving the medical welfare standard of rural residents

while the natural environment requires human intervention to protect and restore the ecological environment.[Conclusion] A variety of factors jointly influenced the level of multifunctional development of arable land in Poyang Lake plain

and the rational formulation of policies related to the protection and utilization of arable land and the protection of rural residents' living standards that have a facilitating effect on improving the level of multifunctional development of arable land.

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