aggraded valley plain

简明释义

加积谷底平原;

英英释义

例句

1.Farmers often prefer to cultivate crops on an aggraded valley plain 堆积的河谷平原 due to its fertile soil.

农民们通常更喜欢在堆积的河谷平原上种植作物，因为那里土壤肥沃。

2.The river has created an aggraded valley plain 堆积的河谷平原 over centuries of sediment deposition.

这条河经过数世纪的沉积作用形成了一个堆积的河谷平原。

3.Geologists study the formation of an aggraded valley plain 堆积的河谷平原 to understand past river behaviors.

地质学家研究堆积的河谷平原的形成，以了解过去河流的行为。

4.The aggraded valley plain 堆积的河谷平原 serves as a natural floodplain, absorbing excess water during heavy rains.

这个堆积的河谷平原作为自然洪泛区，在大雨期间吸收多余的水。

5.Sediment layers in an aggraded valley plain 堆积的河谷平原 can reveal important geological history.

在堆积的河谷平原中的沉积层可以揭示重要的地质历史。

作文

The term aggraded valley plain refers to a flat or gently sloping area that has been formed by the accumulation of sediment in a valley, typically as a result of river processes. This geological phenomenon is significant in understanding how landscapes evolve over time. To grasp the concept of an aggraded valley plain, it is essential to explore the processes involved in its formation and the ecological implications it carries.When a river flows through a valley, it transports sediments from upstream areas. These sediments can include sand, silt, clay, and gravel, which are eroded from the land and carried downstream. As the river reaches flatter areas, its velocity decreases, leading to the deposition of these sediments. Over time, this continuous process results in the formation of an aggraded valley plain, where layers of sediment build up, creating a relatively level surface.The formation of an aggraded valley plain is often influenced by various factors, including climate, topography, and human activities. For instance, during periods of heavy rainfall or snowmelt, rivers may experience increased flow rates, resulting in greater sediment transport and deposition. Conversely, in arid regions, limited water flow may lead to less sediment accumulation. Additionally, human activities such as deforestation, agriculture, and urban development can alter natural sediment transport processes, affecting the formation of these plains.Ecologically, aggraded valley plains play a crucial role in supporting diverse habitats. The rich alluvial soils found in these areas are often fertile, making them ideal for agriculture. Many communities rely on these plains for crop production, as the sediments provide essential nutrients for plant growth. Furthermore, the wetlands that can develop in these plains serve as critical habitats for various species of plants and animals, contributing to biodiversity.However, the stability of aggraded valley plains can be threatened by environmental changes and human activities. For example, excessive sedimentation can lead to the alteration of river channels, potentially causing flooding or erosion. Climate change also poses risks, as rising temperatures and changing precipitation patterns can affect river flow and sediment dynamics. Therefore, it is vital to monitor and manage these landscapes to ensure their sustainability and resilience.In conclusion, the concept of an aggraded valley plain encompasses not only the geological processes of sediment deposition but also the ecological significance of these areas. Understanding how these plains form and function is crucial for effective land management and conservation efforts. Through careful stewardship, we can maintain the health of aggraded valley plains and the myriad of benefits they provide to both humans and wildlife.

术语aggraded valley plain指的是通过沉积物在山谷中积累形成的平坦或缓坡区域，通常是由于河流过程造成的。这一地质现象对于理解景观如何随时间演变具有重要意义。要掌握aggraded valley plain的概念，必须探讨其形成过程及其生态影响。当河流流经山谷时，它会从上游地区运输沉积物。这些沉积物可以包括沙子、淤泥、粘土和砾石，它们从土地上被侵蚀并带到下游。当河流到达较平坦的区域时，其流速减缓，导致这些沉积物的沉积。随着时间的推移，这一连续过程导致了aggraded valley plain的形成，其中沉积层逐渐堆积，创造出相对平坦的表面。aggraded valley plain的形成通常受到气候、地形和人类活动等多种因素的影响。例如，在强降雨或融雪期间，河流可能经历流量增加，从而导致更多沉积物的运输和沉积。相反，在干旱地区，水流有限可能导致沉积物积累较少。此外，人类活动如森林砍伐、农业和城市发展也会改变自然沉积物运输过程，影响这些平原的形成。从生态学的角度来看，aggraded valley plains在支持多样化栖息地方面发挥着至关重要的作用。这些地区富含冲积土壤，往往肥沃，使其成为农业的理想选择。许多社区依赖这些平原进行作物生产，因为沉积物为植物生长提供了必要的养分。此外，这些平原中可能形成的湿地为各种植物和动物物种提供了关键栖息地，促进了生物多样性。然而，aggraded valley plains的稳定性可能受到环境变化和人类活动的威胁。例如，过度沉积可能导致河道的改变，可能引发洪水或侵蚀。气候变化也构成风险，因为气温上升和降水模式变化可能影响河流流动和沉积动态。因此，监测和管理这些景观以确保其可持续性和韧性至关重要。总之，aggraded valley plain的概念不仅涵盖了沉积物沉积的地质过程，还包括这些地区的生态重要性。了解这些平原的形成和功能对于有效的土地管理和保护工作至关重要。通过细心的管理，我们可以维持aggraded valley plains的健康及其对人类和野生动物所提供的众多益处。