灌区的盐平衡演变:莱尔马盆地的案例 (西班牙,2004-2020年)
J Causapé1, M J Gimeno2, L Auqué2
1Geological and Mining Institute of Spain, Spanish National Research Council, Residence CSIC Campus Aula Dei, Avda, Montañana 1005, 50059 Zaragoza, Spain; IGME-CSIC/University of Zaragoza, Associated Unit in Earth Sciences, Zaragoza, Spain.
The Science of the total environment
|September 24, 2023
概括
西班牙的灌方式
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 地质化学 地质化学
背景情况:
- 降雨量较低的盐水区容易发生自然盐化.
- 灌可以加速水系统的盐化.
- 了解灌对水质的影响至关重要.
研究的目的:
- 分析灌对西班牙莱尔马盆地的盐化影响.
- 为了评估在灌巩固之前和之后的盐平衡.
- 为了评估因灌而导致的离子度变化.
主要方法:
- 从2004年到2020年计算了素平衡.
- 盐出口量被评估为整体和每种化学元素.
- 分析了离子度 (SO42-, Cl-, Mg2+, Na+, K+, HCO3-, Ca2+) 的变化.
主要成果:
- 灌使盐出口增加了一倍,达到每年3177公斤/公.
- 55%的盐出口来自矿物溶解,随着时间的推移而减少.
- 灌导致水输出中的HCO3-和Ca2+减少.
结论:
- 灌巩固逐渐减少接收水系统中诱导的盐化.
- 需要对地球化学过程和环境影响进行进一步的研究.
- 灌管理可以减轻水的盐化.
相关概念视频
Regulation of Water Output
324
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...
324
Design Example: Design of an Irrigation Channel
124
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...
124
Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Adaptations that Reduce Water Loss
25.7K
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.
25.7K
Disorder of Water Balance
440
Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
440
Responses to Drought and Flooding
10.7K
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.
10.7K


