基于水足迹方法的农作物模式的优化
Muhammed Sungur Demir1, Abdullah Muratoglu1
1Civil Engineering Department, Batman University, Batman, Türkiye.
Integrated environmental assessment and management
|May 28, 2025
概括
优化作物模式大大减少了农业用水量. 在Ceyhan河流域的这项研究表明,通过战略性作物选择,可以大幅减少水足迹的潜力,为水安全提供了实际的解决方案.
科学领域:
- 农业用水管理农业用水管理
- 水文学的水文学
- 环境科学 环境科学
背景情况:
- 农业是全球最大的淡水消费者,需要节水战略.
- 现有的作物优化研究往往优先考虑产量而不是节水,缺乏实际应用.
- 水足迹评估对于了解农业用水需求至关重要.
研究的目的:
- 通过使用水足迹 (WF) 评估,通过作物模式优化评估农业的节水潜力.
- 将高分辨率的空间WF数据与多目标优化框架集成.
- 为土耳其Ceyhan河流域的作物模式设计提供实际建议.
主要方法:
- 使用土壤和水资源评估工具 (SWAT) 来获得高分辨率的空间WF数据.
- 开发了一个多目标优化框架,平衡蓝色,绿色和灰色水成分.
- 模拟了六个场景,其中有不同的粉减少优先级.
主要成果:
- 情景S1实现了23.4%的WF总减少 (61.4亿米3).
- 情景S6实现了47.9%的蓝色WF减少 (46400万m3).
- 一个中间情景 (S5) 提供了平衡的WF减少和实用的作物分配.
结论:
- 优化作物模式是一种可行的策略,可以大大节省农业用水.
- 建议采取激励机制,鼓励农民采用优化模式.
- 该研究为可持续的水资源管理和粮食/水安全提供了一个决策支持工具.
相关概念视频
Responses to Drought and Flooding
11.1K
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.
11.1K
Adaptations that Reduce Water Loss
26.4K
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.
26.4K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
108
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
108
Design Example: Design of an Irrigation Channel
235
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
235
Light Acquisition
8.6K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.6K
Regulation of Water Output
1.1K
The human body predominantly expels water through the urinary system. On average, an individual generates around 1.5 liters of urine each day. This amount can fluctuate based on how well a person is hydrated, but a critical minimum quantity of urine must be produced to ensure the body's proper functioning. Daily, the kidneys remove 600 to 1200 milliosmoles of dissolved substances, effectively excreting excess minerals and water-soluble toxins such as creatinine, urea, and uric acid from the...
1.1K


