alluvial dam

简明释义

1. 冲积坝; 2. 冲积堤;

英英释义

例句

1.The construction of the alluvial dam has significantly improved irrigation in the region.

这座冲积坝的建设显著改善了该地区的灌溉。

2.The alluvial dam helps to control flooding in the nearby town.

这座冲积坝有助于控制附近城镇的洪水。

3.Local farmers rely on the water stored by the alluvial dam during dry seasons.

当地农民依靠冲积坝储存的水在干旱季节灌溉。

4.Research indicates that alluvial dams can enhance local biodiversity.

研究表明，冲积坝可以增强当地的生物多样性。

5.Engineers studied the sediment flow to design an effective alluvial dam.

工程师们研究了沉积物流动，以设计一个有效的冲积坝。

作文

The concept of an alluvial dam is integral to understanding how natural landscapes are shaped by water flow and sediment deposition. An alluvial dam refers to a type of dam that is formed from the accumulation of sediments, primarily sand and silt, carried by rivers during periods of high water flow. These dams can be found in river valleys where the flow of water slows down, allowing sediments to settle. The formation of an alluvial dam is a natural process that occurs over time, influenced by various environmental factors such as climate, topography, and vegetation.In many regions, alluvial dams play a crucial role in the ecosystem. They can create wetlands that serve as habitats for diverse wildlife, including fish, birds, and other aquatic organisms. These areas are often rich in biodiversity due to the variety of environments created by the dam's presence. Furthermore, alluvial dams can also help improve water quality by trapping pollutants and sediments, thus acting as natural filters for the water that flows downstream.However, alluvial dams are not without their challenges. In some cases, human activities such as deforestation, agriculture, and urban development can disrupt the natural processes that lead to the formation of these dams. When the sediment supply is altered or reduced, it can result in erosion and the degradation of the riverbanks, leading to increased flooding risks. Additionally, the construction of artificial dams can impede the natural flow of sediments, which affects the health of ecosystems reliant on alluvial dams.Understanding the dynamics of alluvial dams is essential for effective environmental management and conservation efforts. By studying these natural structures, scientists and policymakers can develop strategies to protect and restore river ecosystems. For instance, implementing sustainable land use practices can help maintain the sediment supply needed for the formation of alluvial dams. Moreover, restoring damaged riverbanks and wetlands can enhance the resilience of these ecosystems against climate change impacts.In conclusion, the significance of alluvial dams extends beyond their physical presence in the landscape. They are vital components of healthy river systems, providing ecological benefits and supporting biodiversity. As we continue to face environmental challenges, recognizing the importance of alluvial dams and promoting their preservation will be crucial for maintaining the balance of our natural ecosystems. By fostering a deeper understanding of these natural formations, we can better appreciate their role in shaping our environment and ensuring the sustainability of our water resources.

“冲积坝”的概念对于理解自然景观如何受到水流和沉积物沉积的影响至关重要。冲积坝是指一种由河流在高水流期间携带的沉积物（主要是沙子和淤泥）积累而形成的坝。这些坝可以在河谷中找到，在那里水流减缓，允许沉积物沉降。冲积坝的形成是一个自然过程，随着时间的推移受到气候、地形和植被等多种环境因素的影响。在许多地区，冲积坝在生态系统中发挥着至关重要的作用。它们可以创造湿地，为鱼类、鸟类和其他水生生物提供栖息地。这些区域通常因坝的存在而形成的多样化环境而富含生物多样性。此外，冲积坝还可以通过捕获污染物和沉积物来改善水质，因此作为流向下游水体的天然过滤器。然而，冲积坝并非没有挑战。在某些情况下，诸如森林砍伐、农业和城市开发等人类活动可能会破坏形成这些坝的自然过程。当沉积物供应被改变或减少时，可能导致侵蚀和河岸退化，从而增加洪水风险。此外，人工坝的建设可能会阻碍沉积物的自然流动，从而影响依赖于冲积坝的生态系统的健康。理解冲积坝的动态对于有效的环境管理和保护工作至关重要。通过研究这些自然结构，科学家和政策制定者可以制定保护和恢复河流生态系统的策略。例如，实施可持续的土地利用实践可以帮助维持形成冲积坝所需的沉积物供应。此外，恢复受损的河岸和湿地可以增强这些生态系统抵御气候变化影响的韧性。总之，冲积坝的重要性超越了它们在景观中的物理存在。它们是健康河流系统的重要组成部分，提供生态益处并支持生物多样性。随着我们继续面临环境挑战，认识到冲积坝的重要性并促进其保护对于维持我们自然生态系统的平衡至关重要。通过加深对这些自然形成的理解，我们可以更好地欣赏它们在塑造我们的环境和确保水资源可持续性方面的作用。