Spatiotemporal evolution and driving factors of coupling coordination between carbon emission efficiency of cultivated land use and food security in Fenhe River basin

Li Man; Wang Mengzhu; Liu Huancai; Wang Chao; Jian Kai

doi:10.13961/j.cnki.stbctb.2025.02.027

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Spatiotemporal evolution and driving factors of coupling coordination between carbon emission efficiency of cultivated land use and food security in Fenhe River basin

- Spatiotemporal evolution and driving factors of coupling coordination between carbon emission efficiency of cultivated land use and food security in Fenhe River basin
- Bulletin of Soiland Water Conservation Vol. 45, Issue 2, Pages: 262-271(2025)
- 作者机构：
  
  山西师范大学地理科学学院,山西,太原,030031
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2025.02.027
  CLC： S17;K90
- Online First：16 May 2025，
  
  Published：2025
- 稿件说明：
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Li Man, Wang Mengzhu, Liu Huancai, et al. Spatiotemporal evolution and driving factors of coupling coordination between carbon emission efficiency of cultivated land use and food security in Fenhe River basin[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 262-271.
DOI：

Li Man, Wang Mengzhu, Liu Huancai, et al. Spatiotemporal evolution and driving factors of coupling coordination between carbon emission efficiency of cultivated land use and food security in Fenhe River basin[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 262-271. DOI： 10.13961/j.cnki.stbctb.2025.02.027.

摘要

[目的] 探讨汾河流域耕地利用碳排放效率与粮食安全耦合协调的时空演变特征及驱动因素，为提升汾河流域耕地利用碳排放效率与粮食安全耦合协调水平提供决策参考。[方法] 利用非期望产出超效率SBM模型和熵权法分别对2005—2021年汾河流域耕地利用碳排放效率与粮食安全进行测度及时空特征分析，在此基础上运用耦合协调度模型和参数最优地理探测器探讨了二者的耦合协调性及其驱动因素。[结果] ①耕地利用碳排放效率各县差异明显，大部分县区仍处于中低等效率。②汾河流域粮食安全水平整体呈“上升—下降—上升”的趋势；高值区主要集中在东北部以及南部地区，低值区主要位于汾河流域上游、太原市区以及灵霍山峡地区。③汾河流域耕地利用碳排放效率与粮食安全的耦合协调水平总体偏低，空间上呈现“上游低、中下游高”的分布特征。处于失调衰退阶段的县区主要以碳排放效率滞后型为主，处于过渡发展阶段的县区主要以粮食安全滞后型为主。④人均耕地面积、城市化率和人口规模是影响碳排放效率与粮食安全耦合协调水平的主要驱动因子。[结论] 汾河流域各县区应瞄准差异方向，提升短板，在优化耕地利用的同时加强农业科技支持与政策引导，最终实现二者同步协调发展。

Abstract

[Objective] The spatiotemporal evolutionary characteristics and driving factors of coupling coordination between the carbon emission efficiency of cultivated land use and food security in the Fenhe River basin were explored

in order to provide decision-making references for improving the level of coupling coordination. [Methods] The undesired output super-efficiency SBM model and entropy weight method were used to measure the carbon emission efficiency and food security in the Fenhe River basin from 2005 to 2021. Next

the spatiotemporal characteristics were analyzed. On this basis

coupling coordination and its driving factors were discussed using the coupling coordination degree model and an optimal parameter-based geographic detector model. [Results] ① The carbon emission efficiency of cultivated land use varied significantly among counties; most counties still had mid-and low levels of efficiency. ② The level of food security in the Fenhe River basin showed a trend of “increase-decrease-increase.” The high-value areas were primarily concentrated in the northeast and southern regions

while the low-value areas were located mainly in the upper reaches of the Fenhe River basin

the urban area of Taiyuan City

and the gorge region of Linghuo Mountain. ③ The level of coupling coordination between carbon emission efficiency and food security in the Fenhe River basin was relatively low

showing a spatial distribution feature of “low in the upstream and high in the middle and lower reaches.” Counties in the stage of imbalanced degradation were mostly characterized by lagging carbon emission efficiency

while those in the phase of transitional development were chiefly characterized by lagging food security. ④ Per capita cultivated land area

urbanization rate

and population size were the primary driving factors affecting the level of coupling coordination between carbon emission efficiency and food security. [Conclusion] Counties in the Fenhe River basin should focus on differences

improve the short boards

and optimize cultivated land use while strengthening support for agricultural science as well as technological and policy-related guidance

ultimately achieving simultaneous and coordinated development of the two.

关键词

Keywords

references

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