accretion of bed level

简明释义

河床淤高;

英英释义

例句

1.Engineers are monitoring the accretion of bed level to ensure the stability of the dam.

工程师正在监测床面沉积以确保大坝的稳定性。

2.The river's flow has led to an accretion of bed level in certain areas, which can affect navigation.

河流的流动导致某些区域出现了床面沉积，这可能影响航行。

3.The accretion of bed level in the estuary has changed the local ecosystem significantly.

入海口的床面沉积显著改变了当地生态系统。

4.Sediment transport studies focus on the accretion of bed level over time.

沉积物运输研究集中于随时间变化的床面沉积。

5.The accretion of bed level can lead to increased flooding risk during heavy rains.

在大雨期间，床面沉积可能导致洪水风险增加。

作文

The concept of accretion of bed level refers to the gradual increase in the elevation of a riverbed or seabed due to the accumulation of sediments over time. This natural process plays a crucial role in shaping aquatic ecosystems and influencing the hydrology of rivers and lakes. Understanding accretion of bed level is essential for environmental scientists, engineers, and policymakers who aim to manage waterways effectively and sustainably. In many regions, rivers transport sediment from upstream areas and deposit it at various points along their courses. Over time, this deposition can lead to the formation of new landforms, such as bars or islands, which can alter the flow of water and impact local habitats. The accretion of bed level can also affect navigation, flood control, and the overall health of aquatic ecosystems. For instance, when sediment accumulates excessively, it can raise the bed level of a river, potentially leading to flooding during heavy rainfall events.Moreover, the accretion of bed level is influenced by several factors, including human activities. Deforestation, urbanization, and agricultural practices can increase erosion and sediment runoff into waterways, accelerating the rate of accretion. Conversely, dam construction can trap sediments, disrupting the natural flow and leading to decreased bed levels downstream. This imbalance can have long-term ecological consequences, such as habitat loss for fish and other aquatic organisms.To illustrate the importance of understanding accretion of bed level, consider the case of the Mississippi River in the United States. Over the years, sediment from the river has built up in various locations, creating new land but also posing challenges for navigation and flood management. Engineers and scientists continuously monitor these changes to ensure that the river remains navigable and that surrounding communities are protected from potential flooding.In conclusion, the accretion of bed level is a vital process that impacts both the physical landscape and the ecological balance of aquatic environments. By studying this phenomenon, we can better manage our water resources, mitigate the effects of climate change, and preserve the biodiversity that relies on healthy waterways. As we continue to face environmental challenges, understanding processes like accretion of bed level will be key to developing sustainable solutions for the future.

床面水平的增加（accretion of bed level）这一概念指的是由于沉积物的逐渐积累而导致河床或海床高度的增加。这个自然过程在塑造水生生态系统和影响河流和湖泊水文方面发挥着至关重要的作用。理解accretion of bed level对于希望有效和可持续地管理水道的环境科学家、工程师和政策制定者来说是必要的。在许多地区，河流将上游地区的沉积物运输到沿途的不同点并沉积下来。随着时间的推移，这种沉积可以导致新地貌的形成，例如沙洲或岛屿，这可以改变水流并影响当地栖息地。accretion of bed level也会影响航行、洪水控制以及水生生态系统的整体健康。例如，当沉积物过度积累时，它可能会提高河流的床面水平，从而在暴雨事件中可能导致洪水。此外，accretion of bed level还受到多种因素的影响，包括人类活动。森林砍伐、城市化和农业实践可能会增加侵蚀和沉积物径流进入水道，从而加速沉积的增加。相反，水坝的建设可以捕获沉积物，破坏自然流动，并导致下游床面水平的降低。这种失衡可能会对生态产生长期影响，例如鱼类和其他水生生物的栖息地丧失。为了说明理解accretion of bed level的重要性，可以考虑美国密西西比河的案例。多年来，河流中的沉积物在各个位置堆积，创造了新的土地，但也给航行和洪水管理带来了挑战。工程师和科学家不断监测这些变化，以确保河流保持可通行，并保护周围社区免受潜在洪水的影响。总之，accretion of bed level是一个影响物理景观和水生环境生态平衡的重要过程。通过研究这一现象，我们可以更好地管理我们的水资源，减轻气候变化的影响，并保护依赖健康水道的生物多样性。随着我们继续面临环境挑战，理解诸如accretion of bed level这样的过程将是为未来开发可持续解决方案的关键。