王建鑫, 罗小锋, 刘在洲, 唐林. 长江经济带农田生态价值时空变化及影响因素分析[J]. 中国生态农业学报 (中英文), 2024, 32(3): 505−517. DOI: 10.12357/cjea.20230515
引用本文: 王建鑫, 罗小锋, 刘在洲, 唐林. 长江经济带农田生态价值时空变化及影响因素分析[J]. 中国生态农业学报 (中英文), 2024, 32(3): 505−517. DOI: 10.12357/cjea.20230515
WANG J X, LUO X F, LIU Z Z, TANG L. Spatial-temporal variation and influencing factors of farmland ecological value in the Yangtze River Economic Belt[J]. Chinese Journal of Eco-Agriculture, 2024, 32(3): 505−517. DOI: 10.12357/cjea.20230515
Citation: WANG J X, LUO X F, LIU Z Z, TANG L. Spatial-temporal variation and influencing factors of farmland ecological value in the Yangtze River Economic Belt[J]. Chinese Journal of Eco-Agriculture, 2024, 32(3): 505−517. DOI: 10.12357/cjea.20230515

长江经济带农田生态价值时空变化及影响因素分析

Spatial-temporal variation and influencing factors of farmland ecological value in the Yangtze River Economic Belt

  • 摘要: 农田生态系统承载着经济、生态和社会功能, 紧密联系农业生态与乡村生态。为考察2010—2021年长江经济带农田生态价值时空动态变化及其影响因素, 本研究基于改进的生态系统服务价值评估模型和生态系统能值分析框架构建了长江经济带农田生态价值测算指标体系, 并采用空间杜宾模型分析了农田生态价值的影响因素。基于以上分析, 本研究得到以下结果: 1) 2010—2021年长江经济带农田生态价值总体呈现波动增长态势, 且具有区域性差异。2)长江经济带农田生态价值呈现“上游—中游—下游” 梯度递减趋势, 整体呈现“西高东低” 的空间分布特征, 空间聚集特征显著。3)影响因素分析结果表明, 财政支农力度、城镇化率、作物种植结构和年均降水量有助于提升农田生态价值, 而农业经济发展水平和城乡收入差距不利于农田生态价值的改善和提升。针对本研究结果提出如下建议: 长江经济带要结合区位优势制定农业生态产品价值实现政策; 加强农业财政支持力度、新型城镇化发展和生态农产品品牌建设; 建立和完善长江经济带农业生态产品交易平台和农业生态产品价值实现机制。

     

    Abstract: Farmland ecosystems perform economic, ecological, and social functions and are closely related to agricultural and rural ecology. To investigate the spatial and temporal dynamic changes in farmland ecological value and their influencing factors in the Yangtze River Economic Belt from 2010 to 2021, we developed an indicator system for assessing farmland ecological value. This system was based on an improved ecosystem service valuation model and ecosystem energetic value analysis framework and analyzed it using the spatial Durbin model. Based on the above analysis, the results showed that: 1) from 2010 to 2021, the average level of farmland ecological value in the Yangtze River Economic Belt showed a fluctuating growth trend with regional differences, and the average value ranging from 0.381 to 0.435. The fluctuation range of farmland ecological value of upstream, midstream, and downstream regions were 0.458−0.607, 0.321−0.433 and 0.247−0.349, respectively, and the fluctuation range of each region was relatively stable. There were significant differences in the growth contribution of the farmland ecological value among the provinces. The growth contribution was mainly concentrated in the upstream region, whereas the middle and downstream regions experienced negative growth. 2) From the perspective of spatial and temporal variation, the farmland ecological value in the Yangtze River Economic Belt displayed a gradient-decreasing trend of “upstream, midstream, downstream” and the high-level areas presented continuous spatial agglomeration. The overall spatial distribution characteristics were “high in the west and low in the east” and the spatial differentiation and aggregation characteristics were significant. 3) Multiple factors affect the ecological value of farmland in the Yangtze River Economic Belt. The results showed that financial and political support for agriculture, the urbanization rate of population, crop planting structure, and average annual precipitation contributed to improving farmland ecological value, among which the urbanization rate of population could significantly improve the farmland ecological value of neighboring areas. In contrast, the level of agricultural economic development and the urban-rural income gap were not conducive to improving and enhancing farmland ecological value. Therefore, based on the research findings, the following recommendations are proposed for the Yangtze River Economic Belt: Green, ecological, and sustainable agricultural policies should be formulated to realize the value of agroecological products, considering their locational advantages. This study focused on improving the utilization efficiency of water, soil, light, heat, and other resources in the regional farmland ecosystem and improving the level of agricultural mechanization, intelligent development, and field management. It should strengthen financial and political support for agriculture, the development of new urbanization and the brand building of regional agricultural products, the construction of agricultural infrastructure, the cultivation of professional farmers, and the formation of a market mechanism of “high quality and high price” for ecological agricultural products. It should establish a trading platform for agroecological products, promote the transformation of ecological value into ecological well-being, and gradually promote the proposal and improvement of mechanisms for realizing the value of agroecological products in the Yangtze River Economic Belt.

     

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