Exploring trade-offs and synergies in the water-agriculture-ecology nexus via cropping structure optimization
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.This study introduces a multi-objective optimization model for sustainable agriculture in water-scarce regions. The integrated optimization scenario balanced economic benefits, water efficiency, and ecosystem services.
Area Of Science
- Agricultural Science
- Environmental Science
- Water Resource Management
Background
- Increasing global food demand and freshwater scarcity strain agricultural systems, especially in arid regions.
- Limited research comprehensively addresses trade-offs between water use, agricultural output, and ecosystem services.
- Sustainable land management is crucial for balancing competing needs in water-scarce environments.
Purpose Of The Study
- To develop and apply a multi-objective optimization framework (MOWAE_CAO) integrating water efficiency, economic benefits, and ecosystem services.
- To evaluate Pareto cropping structure optimization under different policy goals within the water-agriculture-ecology nexus.
- To identify optimal land allocation strategies for sustainable agricultural development.
Main Methods
- Developed the MOWAE_CAO multi-objective optimization model.
- Employed the Non-dominated Sorting Genetic Algorithm II (NSGA-II) and entropy-weighted TOPSIS.
- Constructed four scenarios: water efficiency, economic, ecological, and integrated optimization.
Main Results
- The integrated optimization scenario (S4) demonstrated a balanced improvement across all sustainability criteria compared to the baseline.
- Scenario 4 enhanced net economic benefit by 4.05% and ecosystem service value by 3.67%.
- Crop water productivity for maize and spring wheat was improved under the integrated optimization scenario.
Conclusions
- Integrated, data-driven optimization effectively manages trade-offs in the water-agriculture-ecology nexus.
- The MOWAE_CAO model provides actionable insights for sustainable land-use planning in vulnerable regions.
- Balancing economic, water, and ecological goals is achievable through comprehensive optimization.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
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.
In land plants, the uppermost cell layer of a plant leaf, called the epidermis, is coated with a waxy substance called the cuticle. This hydrophobic layer is composed of the polymer cutin and...
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.
Under normal conditions, water taken up by the plant evaporates from leaves and other parts in a process called transpiration. In times of drought stress, water that evaporates by transpiration far exceeds the water absorbed from the soil, causing plants to wilt. The general plant response to drought stress is the synthesis of hormone...
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
Optimal foraging theory states that natural selection favors foraging strategies that balance the benefits of a particular food, such as energy and nutrients, with the costs of obtaining it, such as energy expenditure and the risk of predation. Optimal foraging maximizes benefits while minimizing costs.
For the Crows
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...
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...
Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
Trophic Level Transfer Efficiency
Following the second law of thermodynamics, large amounts of energy are lost from the ecosystem and from one...