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相关概念视频

Responses to Drought and Flooding02:41

Responses to Drought and Flooding

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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.
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Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

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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.
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Disorder of Water Balance01:29

Disorder of Water Balance

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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...
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Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

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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...
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Water and Mineral Acquisition02:34

Water and Mineral Acquisition

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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.
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Sustainable Development01:43

Sustainable Development

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As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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相关实验视频

Updated: Jul 17, 2025

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
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Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

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打击干旱:一个多维挑战

Vincent Vadez1,2,3, Carlos D Messina4, Andrea Carminati5

  • 1Institute for Research and Development (IRD), DIADE Research Unit, University of Montpellier, 34394 Montpellier cedex 5, France.

Journal of experimental botany
|September 2, 2023
PubMed
概括
此摘要是机器生成的。

为粮食生产解决全球缺水问题至关重要. 这项研究强调了一种多学科的干旱性方法,重点关注小农和可持续农业的综合系统.

关键词:
农业的风险 农业的风险气候变化 气候变化 气候变化气候变化的变化.干旱适应性特征 干旱适应性特征使用水的效率提高了水的使用效率.

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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

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相关实验视频

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科学领域:

  • 农业科学 农业科学
  • 环境科学 环境科学
  • 粮食安全 粮食安全

背景情况:

  • 水资源短缺对21世纪的粮食生产构成重大威胁.
  • 干旱的影响广泛,需要紧急解决有利可图的农业和安全的粮食供应.
  • 干旱社区已经召开了30年的会议,促进了多学科的干旱挑战方法.

研究的目的:

  • 介绍第七届干旱国际会议的研究成果,重点关注农业的干旱抵御能力.
  • 强调系统层面的干旱管理方法的重要性,特别是对于小农的干旱管理.
  • 整合包括分子生物学,农学和社会科学在内的各种科学领域,以获得全面的解决方案.

主要方法:

  • 综合分子生物学,生理学,遗传学,农学,育种,环境和社会科学,政策和系统建模的多学科研究.
  • 在小农农业背景下分析干旱影响和弹性战略.
  • 系统建模以了解作物与环境的相互作用和农民的决策.

主要成果:

  • 在非洲举行的第七届干旱国际会议特别讨论了小农环境中的干旱问题.
  • 在以前的Interdrought事件中,传统的以作物为中心的方法增加了"系统"维度.
  • 会议促进了各个科学领域的合作,以应对干旱的挑战.

结论:

  • 基于系统的整体方法对于有效的干旱管理和确保粮食安全至关重要.
  • 将科学研究与社会和政策考虑相结合,是支持小农的关键.
  • 持续的国际合作对于推动全球农业的抗旱能力至关重要.