erosional terrace

简明释义

1. 侵蚀阶地; 2. 浪蚀阶地;

英英释义

例句

1.The formation of an erosional terrace 侵蚀阶地 can indicate changes in climate over thousands of years.

一个erosional terrace侵蚀阶地的形成可能表明数千年来气候的变化。

2.Geologists often study erosional terraces 侵蚀阶地 to understand the history of river erosion in the area.

地质学家常常研究erosional terraces侵蚀阶地以了解该地区河流侵蚀的历史。

3.Visitors to the national park were amazed by the stunning views from the erosional terrace 侵蚀阶地 overlooking the valley.

国家公园的游客对俯瞰山谷的erosional terrace侵蚀阶地的壮丽景色感到惊叹。

4.An erosional terrace 侵蚀阶地 often forms when a river's flow decreases, allowing sediment to settle.

当河流流量减少时，通常会形成一个erosional terrace侵蚀阶地，使沉积物得以沉降。

5.The river cut through the landscape, creating an erosional terrace 侵蚀阶地 that was visible from the hiking trail.

这条河流穿过景观，形成了一个从远足小径可见的erosional terrace侵蚀阶地。

作文

In the study of geomorphology, one of the fascinating features that often capture the attention of geologists and environmentalists alike is the erosional terrace. An erosional terrace is a flat, step-like landform that results from the process of erosion, where the landscape has been shaped over time by various natural forces such as water, wind, and ice. These terraces are typically found along riverbanks and hillsides, indicating a history of significant geological activity. Understanding the formation and significance of erosional terraces can provide valuable insights into the evolution of landscapes and the environmental conditions that prevailed in the past.The formation of an erosional terrace begins with the action of flowing water, which erodes the soil and rock along the banks of a river or stream. As the water continues to flow, it carves out a channel, and the surrounding material is gradually worn away. Over time, this process can create a series of flat surfaces, or terraces, at different elevations. These terraces can be seen as remnants of a once higher landscape that has been cut down through prolonged erosion. Each terrace represents a different stage in the landscape's development, often correlating with changes in climate or tectonic activity.One of the most striking aspects of erosional terraces is their ability to tell a story about the environment. For instance, the presence of multiple terraces can indicate periods of stability followed by episodes of intense erosion. This can suggest fluctuations in climate, such as the transition from wetter to drier periods, or even the impact of human activity on the landscape. In many regions, erosional terraces serve as valuable indicators for understanding historical land use and ecological changes, as they can reveal how the terrain has responded to both natural and anthropogenic influences.In addition to their geological importance, erosional terraces also hold ecological significance. These flat areas often become habitats for various plant and animal species, providing unique ecosystems that may not exist elsewhere in the region. The terraces can support diverse vegetation due to their relatively stable soil conditions compared to the surrounding steep slopes. Furthermore, they can act as natural barriers, influencing water drainage and sediment deposition, which can further shape the local ecology.However, erosional terraces are also vulnerable to degradation due to human activities such as agriculture, urban development, and deforestation. These actions can accelerate erosion, leading to the loss of these important landforms. Therefore, recognizing the value of erosional terraces is crucial for conservation efforts. Protecting these areas not only preserves their geological and ecological integrity but also helps maintain the cultural heritage associated with them.In conclusion, erosional terraces are remarkable geological formations that offer a glimpse into the dynamic processes shaping our planet. They serve as important indicators of environmental change and provide essential habitats for diverse species. By studying and preserving erosional terraces, we can gain a deeper understanding of our natural world and the intricate relationships between landforms, ecosystems, and human activity.

在地貌学研究中，一个常常吸引地质学家和环境学家注意的迷人特征是侵蚀阶地。侵蚀阶地是指一种由侵蚀过程形成的平坦、阶梯状的地形，随着时间的推移，景观受到水、风和冰等各种自然力量的塑造。这些阶地通常位于河岸和山坡上，表明了显著的地质活动历史。理解侵蚀阶地的形成及其重要性可以为我们提供关于景观演变和过去环境条件的宝贵见解。侵蚀阶地的形成始于流水的作用，流水侵蚀河流或小溪沿岸的土壤和岩石。随着水流的持续，水流会切割出一个通道，周围的材料逐渐被磨损。随着时间的推移，这一过程可以创造出一系列不同高度的平坦表面或阶地。这些阶地可以被视为曾经更高的景观的遗迹，经过长期侵蚀而被削减。每一个阶地代表了景观发展的不同阶段，通常与气候或构造活动的变化相关。侵蚀阶地最引人注目的方面之一是它们能够讲述环境的故事。例如，多个阶地的存在可能表明稳定时期后经历了强烈侵蚀的阶段。这可能暗示气候的波动，如从湿润到干燥时期的过渡，甚至是人类活动对景观的影响。在许多地区，侵蚀阶地作为理解历史土地利用和生态变化的重要指标，因为它们可以揭示地形如何响应自然和人为影响。除了地质重要性外，侵蚀阶地还具有生态意义。这些平坦区域通常成为各种植物和动物物种的栖息地，提供独特的生态系统，这些生态系统在该地区的其他地方可能不存在。这些阶地由于相对稳定的土壤条件，往往可以支持多样的植被，相较于周围陡峭的坡度。此外，它们可以充当自然屏障，影响水流排放和沉积物沉积，进一步塑造当地生态。然而，侵蚀阶地也因农业、城市发展和森林砍伐等人类活动而容易退化。这些行为可能加速侵蚀，导致这些重要地形的丧失。因此，认识到侵蚀阶地的价值对于保护工作至关重要。保护这些区域不仅维护其地质和生态完整性，还有助于维护与之相关的文化遗产。总之，侵蚀阶地是非凡的地质形成，提供了对塑造我们星球的动态过程的深入了解。它们作为环境变化的重要指标，并为多样物种提供必要的栖息地。通过研究和保护侵蚀阶地，我们可以更深入地理解我们的自然世界以及地形、生态系统和人类活动之间错综复杂的关系。