Towards sustainable management of agricultural resources: A framework to assess the relationship between water, soil, economic factors, and grain production,Journal of Environmental Management |
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Towards sustainable management of agricultural resources: A framework to assess the relationship between water, soil, economic factors, and grain production,Journal of Environmental Management
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As the requirements for environmental protection and high-efficiency economies increase, grain production (GP) across the globe faces more stringent ecological constraints and economic pressure. Understanding the relationships between natural resources and economic and agricultural factors in grain-producing regions is paramount for ensuring global food security. This paper proposes a methodological framework to explore the relationships between water and soil resources (WSRs), economic input factors (EIFs), and GP. We employed the northeast region of China as a case study to advance our understanding of the factors driving the development of grain-producing capacity. We first constructed and calculated the region's water and soil comprehensive index (WSCI) to describe water-soil properties. We then used hotspot analysis to explore the spatial agglomeration characteristics of WSRs, EIFs, and GP. Finally, we used threshold regression analysis to understand the effects of EIFs and GP with the WSCI as the threshold variable. With the improvement of the WSCI, the positive impact of fertilizer and irrigation on GP shows a U-shaped curve in elasticity coefficients. The positive effect of agricultural machinery on GP decreases significantly, and the impact of labor input on GP is insignificant. These results provide new insights into the relationship between WSRs, EIFs, and GP and a reference for improving GP efficiency globally. This work thus contributes to advancing our capabilities to enable food security while considering aspects of sustainable agriculture in important grain-producing regions across the globe.
中文翻译：
随着环境保护和经济高效要求的提高，全球粮食生产面临更加严格的生态约束和经济压力。了解粮食产区自然资源与经济和农业因素之间的关系对于确保全球粮食安全至关重要。本文提出了一个方法框架来探讨水土资源（WSR）、经济投入因素（EIF）和GP之间的关系。我们以东北地区为例，加深对粮食生产能力发展驱动因素的认识。我们首先构建并计算了该地区的水土综合指数（WSCI）来描述水土性质。然后，我们利用热点分析来探讨WSR、EIF和GP的空间集聚特征。最后，我们使用阈值回归分析来了解 EIF 和 GP 以 WSCI 作为阈值变量的影响。随着WSCI的改善，化肥和灌溉对GP的正向影响在弹性系数上呈现出U型曲线。农业机械对GP的正向作用显着下降，劳动力投入对GP的影响不显着。这些结果为WSR、EIF和GP之间的关系提供了新的见解，并为全球提高GP效率提供了参考。因此，这项工作有助于提高我们实现粮食安全的能力，同时考虑全球重要粮食产区可持续农业的各个方面。 |
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