结构调整和财政支持是否会影响黄河流域的低碳农业生产?
1College of Economics and Management, Northwest A&F University, Yangling, 712100, China.
概括
黄河流域的低碳农业生产效率正在下降,受到结构调整的负面影响,但通过财政支持得到改善. 协同效应显示出可持续农业发展的前景.
科学领域:
- 农业经济学 农业经济学
- 环境科学 环境科学
- 区域发展 区域发展
背景情况:
- 黄河流域面临着平衡农业发展与生态保护的挑战.
- 了解影响农业低碳生产效率的因素对于可持续实践至关重要.
- 之前的研究还没有充分探讨结构调整和财政支持对这种效率的空间影响.
研究的目的:
- 测量黄河流域农业低碳生产效率.
- 分析结构调整和财政支持对这一效率的影响,考虑空间溢出效应.
- 研究结构调整和财政支持对农业低碳生产效率的协同效应.
主要方法:
- 利用黄河流域75个城市的面板数据 (2000-2020年).
- 采用超级SBM模型来衡量农业低碳生产效率.
- 应用了空间德宾模型来评估结构调整和财政支持的影响.
主要成果:
- 农业低碳生产效率显示出波动性的下降趋势和"高东,低西部"的空间模式.
- 结构调整对效率产生负面影响,邻近地区的负面溢出效应更为强烈.
- 财政支持对效率有积极的影响,尽管其空间溢出效应不那么明显.
结论:
- 结构调整阻碍了低碳农业,特别是在中游和下游地区.
- 财政支持有利于低碳农业,特别是在上游地区.
- 结构调整和财政支持之间的协同作用对效率产生了积极的影响,这表明财政支持可以减轻负面结构影响.
相关概念视频
Adaptations that Reduce Water Loss
25.5K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.5K
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
The Calvin Benson Cycle
4.5K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.5K
Multiple Regression
3.0K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.0K
Key Elements for Plant Nutrition
18.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.7K


