相关实验视频
Updated: Jun 16, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
互动的水不安全和粮食不安全:理论和应用的最新进展
Alexandra Brewis1, Wendy Jepson2, Asher Y Rosinger3,4
1School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, USA.
概括
家庭用水不安全显著推动粮食不安全,影响全球健康. 未来的研究需要更好的测量工具和因果路径分析这些相关问题.
科学领域:
- 公共卫生 公共卫生
- 环境健康 环境健康
- 社会学 社会学 社会学
背景情况:
- 2020年由Brewis,Workman等人进行的研究. 建立了理解家庭用水不安全和粮食不安全之间的联系的基础.
- 过去五年的研究已经扩大了这些初步发现,探索了动态机制和全球背景.
研究的目的:
- 思考自2020年以来关于水和粮食不安全问题的研究演变.
- 突出将水资源不安全与粮食不安全联系在一起的动态机制.
- 讨论对人类健康的影响,并确定未来的研究重点.
主要方法:
- 这篇评论综合了最近的文献和案例研究.
- 它通过公共卫生镜头分析了水和粮食不安全之间的相互作用.
- 它回顾了了解多尺度贡献因素的进展.
主要成果:
- 最近的研究表明,水资源不安全是粮食不安全的一个更重要的驱动力,而不是以前理解.
- 本地化案例研究揭示了影响这些关系的复杂,多层次因素.
- 水资源不安全,粮食不安全和健康结果之间的双向联系越来越明显.
结论:
- 水资源不安全在推动粮食不安全方面的作用需要通过精细的测量工具进行进一步的调查.
- 了解水资源不安全,粮食不安全和健康之间的因果关系对于有效的干预至关重要.
- 未来的研究应该优先考虑在不同的环境中测试这些机制.
相关概念视频
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
Adaptations that Reduce Water Loss
25.2K
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.
25.2K
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
Water and Mineral Acquisition
32.7K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
32.7K
Quality of Water
89
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
89
Regulation of Water Output
281
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...
281

