bed material

简明释义

1. 底质; 2. 河床质;

英英释义

例句

1.The construction team selected high-quality bed material for the foundation to ensure stability.

施工队选择了高质量的床垫材料作为基础，以确保稳定性。

2.The geologist studied the bed material to understand the historical sedimentation patterns.

地质学家研究了床垫材料以了解历史沉积模式。

3.In landscaping, using appropriate bed material can help with drainage and plant growth.

在园艺中，使用合适的床垫材料可以帮助排水和植物生长。

4.The riverbank restoration project required specific bed material to protect against erosion.

河岸恢复项目需要特定的床垫材料以防止侵蚀。

5.When building a pond, the choice of bed material is crucial for maintaining water quality.

在建造池塘时，床垫材料的选择对保持水质至关重要。

作文

In the field of geology and environmental science, understanding the concept of bed material is essential for various applications, including river management, sediment transport, and habitat restoration. The term bed material refers to the solid particles that form the bottom layer of a riverbed or streambed. This material can consist of gravel, sand, silt, clay, or a combination of these elements, and it plays a crucial role in shaping the physical characteristics of aquatic environments.The composition of bed material directly influences the flow of water in rivers and streams. For instance, a riverbed composed primarily of coarse gravel will allow for faster water flow compared to one made up of fine silt. This difference in flow rate can impact erosion processes, sediment deposition, and the overall health of the aquatic ecosystem. Moreover, the type of bed material present can affect the habitats available for various species of fish and other aquatic organisms, making it a vital consideration for conservation efforts.In addition to its ecological significance, bed material is also important in engineering and construction projects. When designing bridges, dams, or other structures that interact with water bodies, engineers must consider the properties of the bed material to ensure stability and safety. For example, if the bed material is too soft or unstable, it may not provide adequate support for heavy structures, leading to potential failures.Furthermore, the study of bed material is critical in the context of sediment transport. Sediment transport refers to the movement of soil and rock particles by water, wind, or ice. Understanding how different types of bed material interact with flowing water allows scientists to predict how sediment will move through a system. This knowledge is particularly useful for managing sedimentation in reservoirs and navigating the challenges posed by sediment-laden rivers.One practical application of studying bed material is in river restoration projects. Many rivers have been altered by human activities, such as dam construction and urban development, which can disrupt natural sediment transport processes. By analyzing the bed material in these rivers, ecologists can determine the best strategies for restoring natural flow patterns and improving habitat conditions for aquatic life. For example, introducing appropriate bed material in specific areas can help create suitable spawning habitats for fish, thereby enhancing biodiversity.Moreover, understanding bed material is essential for addressing environmental issues like pollution. Contaminants can bind to sediment particles, and the type of bed material can influence how pollutants are transported and accumulated in aquatic systems. By studying the interactions between contaminants and bed material, researchers can develop better strategies for pollution remediation and prevention.In conclusion, the concept of bed material is multifaceted and holds significant importance across various disciplines, including ecology, engineering, and environmental science. Its influence on water flow, sediment transport, habitat availability, and pollution dynamics makes it a critical factor in both natural ecosystems and human-designed structures. As we continue to face environmental challenges, a deeper understanding of bed material will be vital for developing effective management practices and ensuring the sustainability of our waterways and their surrounding environments.

在地质学和环境科学领域，理解“bed material”的概念对于河流管理、沉积物运输和栖息地恢复等各种应用至关重要。术语“bed material”指的是形成河床或溪床底层的固体颗粒。这种材料可以由砾石、沙子、淤泥、粘土或这些元素的组合组成，它在塑造水生环境的物理特征方面发挥着至关重要的作用。“bed material”的成分直接影响河流和溪流中的水流动。例如，主要由粗砾石组成的河床将比由细淤泥组成的河床允许更快的水流。这种流速的差异会影响侵蚀过程、沉积物沉积以及水生生态系统的整体健康。此外，存在的“bed material”类型可以影响各种鱼类和其他水生生物的栖息地，使其成为保护工作的重要考虑因素。除了生态意义外，“bed material”在工程和建筑项目中也很重要。在设计与水体相互作用的桥梁、坝或其他结构时，工程师必须考虑“bed material”的特性，以确保稳定性和安全性。例如，如果“bed material”过软或不稳定，可能无法为重型结构提供足够的支撑，从而导致潜在的故障。此外，研究“bed material”在沉积物运输的背景下也至关重要。沉积物运输是指通过水、风或冰移动土壤和岩石颗粒的过程。了解不同类型的“bed material”如何与流动水相互作用，可以让科学家预测沉积物将在系统中如何移动。这一知识对于管理水库中的沉积和应对沉积物丰富的河流所带来的挑战尤其有用。研究“bed material”的一个实际应用是在河流恢复项目中。许多河流因人类活动（如修建大坝和城市开发）而被改变，这可能会破坏自然沉积物运输过程。通过分析这些河流中的“bed material”，生态学家可以确定恢复自然流动模式和改善水生生物栖息地条件的最佳策略。例如，在特定区域引入适当的“bed material”可以帮助创造适合鱼类产卵的栖息地，从而增强生物多样性。此外，了解“bed material”对于解决污染等环境问题至关重要。污染物可以与沉积物颗粒结合，而“bed material”的类型可以影响污染物在水生系统中的运输和积累方式。通过研究污染物与“bed material”之间的相互作用，研究人员可以制定更好的污染修复和预防策略。总之，“bed material”的概念是多方面的，并在生态学、工程学和环境科学等多个学科中具有重要意义。它对水流、沉积物运输、栖息地可用性和污染动态的影响，使其成为自然生态系统和人类设计结构中的关键因素。随着我们继续面临环境挑战，对“bed material”的深入理解将对制定有效的管理实践和确保水道及其周边环境的可持续性至关重要。