Wei Yiyuan,Zhang Letao,Wang Qingyuan,et al.Influence of Soil and Water Conservation Investment on the Agricultural Economy and Ecosystem Service Value in Henan Province[J].Research of Soil and Water Conservation,2024,31(03):265-275.[doi:10.13869/j.cnki.rswc.2024.03.031]
河南省水土保持投资对农业经济及生态系统服务价值的影响
- Title:
- Influence of Soil and Water Conservation Investment on the Agricultural Economy and Ecosystem Service Value in Henan Province
- 文章编号:
- 1005-3409(2024)03-0265-11
- Keywords:
- soil and water conservation; input-output ratio; landscape pattern; ecosystem service value; spatiotemporal evolution; Henan Province
- 分类号:
- X171.1; F329.9
- 文献标志码:
- A
- 摘要:
- [目的]探究水土保持投资状况对区域景观格局、生态系统服务价值及农业经济的影响,可为区域后续生态建设和高质量发展提供参考。[方法]基于河南省2009—2020年水土保持投资和土地利用数据,运用C-D函数、景观格局指数、当量因子法等,研究了水土保持投资驱动下的农业经济增长、景观格局变化、生态系统服务价值(ESV)的时空演变。[结果]2009—2020年,河南省水土保持投资在农业领域的经济效益和投入产出比(ROI)整体均呈上升趋势,投资效率逐年下降,在2018年下降至最低值。ESV,TA,PD和COHESION与ROI均在0.01水平上显著相关。林草斑块景观连通性、聚集度降低,破碎化程度加剧。ESV的变化以2012年为转折点呈先减后增趋势,其中2012—2017年增长最多,年均增加8.42亿元。空间上,结合等高线和自然地貌分区的边界连接成一条“人”字形曲线,景观格局和ESV均沿此线发生变化,各分区内部保持较强一致性。[结论]水土保持投资对改善农业生产自然环境的作用逐渐超过其在农业领域创造经济价值的作用,优化投资配置可以更好促进该区域生态环境的恢复和改善。
- Abstract:
- [Objective] The study aims to explore the effects of soil and water conservation investment on regional landscape patterns, ecosystem services value(ESV), and the agricultural economy. This investigation can provide rational reference for regional ecological construction and high-quality development. [Methods] The data focusing on soil and water conservation investment and land use from 2009 to 2020 in Henan Province were utilized. The contribution of this investment to the agricultural economy was measured through Cobb-Douglas production function and an evaluation method of input-output performance. The evolution of landscape patterns, transformations in different land use patterns, and the spatial-temporal variation of ESV in Henan Province were analyzed using landscape pattern indices, land use transfer matrix, and the equivalent factor method. [Results] A general upward trend was found in the economic benefits and the input-output ratio(ROI)of soil and water conservation investment in agriculture sector of Henan Province between 2009 and 2020. However, the investment efficiency exhibited a decrease trend, reaching its lowest point in 2018. A significant correlation was observed between the ESV, patch area index, patch density index, patch cohesion index, and the ROI of soil and water conservation investment exhibited a significant correlation. The connectivity and aggregation of forest and grass patch landscapes experienced a decline, contributing to an intensification of landscape fragmentation. The ESV exhibited a trend of initial decrease followed by subsequent increase, with the most increase occurring between 2012 and 2017, accompanied by an average annual growth of CNY 842 million. Spatially, changes in landscape pattern and ESV occurred along a herringbone curve that combines contour lines with the boundaries of natural geomorphic zones. However, landscape pattern and ESV changed little within the area divided by the curve. [Conclusion] The role of soil and water conservation investment in enhancing the natural environment of agriculture is gradually surpassing its role in generating economic value within the agricultural sector. Optimizing the investment structure can enhance the restoration and improvement of the ecological environment in this region.
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备注/Memo
收稿日期:2023-07-22 修回日期:2023-08-12
资助项目:河南省自然科学基金项目(232300421245); 国家自然科学基金项目(41807066; 42371223)
第一作者:魏仪媛(1996—),女,河南南阳人,硕士生,研究方向为水土保持和生态经济研究。E-mail:wyyuan@henu.edu.cn
通信作者:张乐涛(1989—),男,山东临沂人,博士,讲师,主要从事土壤侵蚀和水土保持研究。E-mail:letao20062006@126.com