arcuate delta

简明释义

弧形三角洲;

英英释义

例句

1.The arcuate delta provides essential nutrients to the surrounding marine ecosystem.

这个弯曲三角洲为周围的海洋生态系统提供了重要的营养。

2.Tourists flock to see the stunning views of the arcuate delta at sunset.

游客们涌向观赏日落时美丽的弯曲三角洲。

3.The river formed an arcuate delta as it emptied into the sea, creating a rich habitat for wildlife.

这条河在流入大海时形成了一个弯曲三角洲，为野生动物创造了丰富的栖息地。

4.The arcuate delta of the Mississippi River is one of the most studied geographical formations in the United States.

密西西比河的弯曲三角洲是美国最受研究的地理形态之一。

5.Geologists often study the arcuate delta to understand sediment deposition patterns.

地质学家经常研究弯曲三角洲以了解沉积物沉积模式。

作文

The term arcuate delta refers to a specific type of river delta that is characterized by a curved or arc-like shape. These deltas typically form at the mouth of a river where it meets a body of water, such as an ocean or a lake. The formation of an arcuate delta occurs when sediment carried by the river is deposited as the water slows down upon entering the larger body of water. This process creates a unique landform that can be visually striking and ecologically significant. One of the most notable examples of an arcuate delta is the Nile Delta in Egypt. The Nile River flows northward through northeastern Africa and empties into the Mediterranean Sea. As the river approaches the sea, it spreads out and forms a fan-shaped delta, which is slightly curved. This curvature is what classifies it as an arcuate delta. The fertile lands of the Nile Delta have supported agriculture for thousands of years, making it one of the most important regions in terms of food production in Egypt.Another example is the Mississippi River Delta in the United States. The delta formed by the Mississippi River is also considered arcuate delta due to its distinctive crescent shape. It is one of the largest and most complex delta systems in the world, providing critical habitats for various species of wildlife. The Mississippi River carries a substantial amount of sediment, which contributes to the growth of the delta over time. However, human activities, such as dam construction and land reclamation, have significantly altered the natural processes that sustain the delta, leading to concerns about its future stability and health.The ecological significance of an arcuate delta cannot be overstated. These deltas serve as vital ecosystems that support diverse flora and fauna. They provide breeding grounds for fish, nesting sites for birds, and habitats for numerous other species. Additionally, deltas often act as natural buffers against storm surges and flooding, protecting inland areas from extreme weather events. Moreover, arcuate deltas have considerable economic importance. They are often rich in resources, including fisheries and fertile agricultural lands. Many communities rely on these deltas for their livelihoods, engaging in fishing, farming, and tourism activities. The cultural significance of deltas is also profound, as they are often home to indigenous populations with deep historical ties to the land and its resources.In conclusion, understanding the concept of arcuate delta is essential for appreciating the complex interactions between rivers, landforms, and ecosystems. These unique geological formations play a crucial role in shaping landscapes, supporting biodiversity, and sustaining human communities. As we continue to study and manage our natural resources, recognizing the importance of arcuate deltas will be vital in ensuring their preservation for future generations. By protecting these ecosystems, we can maintain the ecological balance and continue to benefit from the resources they provide, ensuring that they remain vibrant and productive for years to come.

“弓形三角洲”一词指的是一种特定类型的河流三角洲，其特征是呈弯曲或弧形的形状。这些三角洲通常形成在河流的入海口，与海洋或湖泊等水体相接。弓形三角洲的形成发生在河流携带的沉积物在水流减缓并进入更大水体时被沉积的过程。这一过程创造了一种独特的地貌，既具有视觉冲击力，又具有生态意义。最著名的弓形三角洲的例子是埃及的尼罗河三角洲。尼罗河穿越东北非向北流动，并注入地中海。当河流接近海洋时，它会扩展并形成一个扇形的三角洲，这个三角洲略微弯曲。这种弯曲是其被分类为弓形三角洲的原因。尼罗河三角洲的肥沃土地数千年来一直支持农业，使其成为埃及食品生产中最重要的地区之一。另一个例子是美国的密西西比河三角洲。密西西比河形成的三角洲也被认为是弓形三角洲，因为它具有独特的弯月形状。它是世界上最大和最复杂的三角洲系统之一，为各种野生动物提供了关键栖息地。密西西比河携带大量沉积物，这有助于三角洲随着时间的推移而增长。然而，人类活动，如筑坝和土地开垦，显著改变了维持三角洲的自然过程，导致对其未来稳定性和健康的担忧。弓形三角洲的生态重要性不容小觑。这些三角洲作为重要的生态系统，支持着多样的动植物群。它们为鱼类提供繁殖场所，为鸟类提供巢穴，以及为其他许多物种提供栖息地。此外，三角洲通常充当风暴潮和洪水的自然缓冲区，保护内陆地区免受极端天气事件的影响。此外，弓形三角洲在经济上也具有重要意义。它们通常富含资源，包括渔业和肥沃的农业用地。许多社区依靠这些三角洲谋生，参与捕鱼、农业和旅游活动。三角洲的文化意义也很深远，因为它们往往是与土地及其资源有深厚历史联系的土著人口的家园。总之，理解弓形三角洲的概念对于欣赏河流、地貌和生态系统之间复杂的相互作用至关重要。这些独特的地质形成在塑造景观、支持生物多样性和维持人类社区方面发挥着至关重要的作用。随着我们继续研究和管理自然资源，认识到弓形三角洲的重要性将对确保其保护以造福后代至关重要。通过保护这些生态系统，我们可以维持生态平衡，并继续从它们提供的资源中受益，确保它们在未来仍然充满活力和生产力。