moving dune

简明释义

移动沙丘;

英英释义

例句

1.Local guides often warn hikers about the dangers of getting too close to a moving dune 流动沙丘.

当地向导常常警告徒步旅行者不要靠近流动沙丘。

2.Tourists were amazed by the sight of the moving dune 流动沙丘 shifting with the wind.

游客们被风中不断移动的流动沙丘所惊艳。

3.The moving dune 流动沙丘 can bury anything in its path if not monitored properly.

如果不加以监测，流动沙丘可能会掩埋其路径上的任何东西。

4.Photographers flock to capture the beauty of a moving dune 流动沙丘 at sunset.

摄影师们聚集在一起拍摄日落时分的流动沙丘之美。

5.The researchers studied the effects of climate change on the moving dune 流动沙丘 in the desert.

研究人员研究了气候变化对沙漠中流动沙丘的影响。

作文

The desert is a place of extremes, where the sun blazes during the day and the temperature drops dramatically at night. One of the most fascinating features of deserts is the presence of sand dunes, particularly the concept of a moving dune. A moving dune refers to a sand dune that shifts position due to the wind's force, constantly reshaping the landscape around it. This phenomenon is not only visually striking but also plays a crucial role in the ecosystem of arid environments.The process of a moving dune begins when strong winds blow across the surface of the desert, lifting grains of sand and carrying them over considerable distances. As these grains collide with obstacles such as rocks or other dunes, they are deposited, leading to the formation of new dune shapes. Over time, this movement can result in dunes that can reach heights of several hundred feet, with their forms changing continuously.One of the most notable examples of moving dunes can be found in the Namib Desert in Namibia, where the famous Sossusvlei dunes rise majestically against the backdrop of a clear blue sky. Here, the red sands of the dunes contrast beautifully with the white salt pans, creating a stunning visual effect. Tourists flock to this area to witness the breathtaking views and to experience the unique environment shaped by these moving dunes.The ecological impact of moving dunes extends beyond their aesthetic appeal. These dunes act as natural barriers against wind erosion, protecting the delicate flora and fauna that inhabit the surrounding areas. The shifting sands create microhabitats that can support various species adapted to extreme conditions. For instance, certain plants have developed deep root systems that allow them to access moisture trapped beneath the dunes, while animals have evolved to navigate the ever-changing terrain.However, the phenomenon of moving dunes is not without its challenges. Human activities, such as agriculture and urban development, can disrupt the natural balance of these ecosystems. When vegetation is removed, the protective cover that stabilizes the sand is lost, leading to increased erosion and the potential for the dunes to shift more dramatically. Conservation efforts are essential to preserve these unique landscapes and the biodiversity they support.In conclusion, the concept of a moving dune encapsulates the dynamic nature of desert ecosystems. These sand formations are not merely piles of sand; they are integral components of a larger environmental system that supports life in some of the harshest conditions on Earth. Understanding and appreciating the significance of moving dunes can inspire us to protect these natural wonders for future generations to enjoy. As we continue to explore the deserts of the world, let us remember the beauty and importance of the moving dunes that shape our planet’s landscape.

沙漠是极端环境的地方，白天阳光炽热，夜晚温度骤降。沙漠中最引人注目的特征之一就是沙丘，尤其是“移动沙丘”的概念。“移动沙丘”指的是由于风的作用而移动位置的沙丘，这些沙丘不断重塑周围的景观。这种现象不仅在视觉上令人惊叹，而且在干旱环境的生态系统中也发挥着重要作用。“移动沙丘”的过程始于强风吹过沙漠表面，扬起沙粒并将其带走。当这些沙粒与岩石或其他沙丘发生碰撞时，它们被沉积下来，形成新的沙丘形状。随着时间的推移，这种运动可以导致沙丘的高度达到几百英尺，其形态不断变化。“移动沙丘”的一个显著例子可以在纳米比亚的纳米布沙漠中找到，那里著名的索苏斯弗雷沙丘在蔚蓝的天空下雄伟地耸立。这里，沙丘的红色沙子与白色盐滩形成了美丽的对比，创造出令人惊叹的视觉效果。游客纷纷前往这个地区，目睹壮丽的景色，体验由这些“移动沙丘”塑造的独特环境。“移动沙丘”的生态影响超出了它们的美学吸引力。这些沙丘作为自然屏障，抵御风蚀，保护周围地区脆弱的植物和动物。流动的沙子创造了微生境，可以支持适应极端条件的各种物种。例如，某些植物发展出深根系，使其能够获取埋藏在沙丘下的水分，而动物则进化出在不断变化的地形中导航的能力。然而，“移动沙丘”的现象并非没有挑战。人类活动，如农业和城市开发，可能会破坏这些生态系统的自然平衡。当植被被移除时，稳定沙子的保护层丧失，导致侵蚀加剧，沙丘可能会更剧烈地移动。保护工作对于保护这些独特的景观及其支持的生物多样性至关重要。总之，“移动沙丘”的概念概括了沙漠生态系统的动态特性。这些沙丘不仅仅是沙子的堆积；它们是更大环境系统的组成部分，在地球上最恶劣的条件下支持生命。理解和欣赏“移动沙丘”的重要性可以激励我们保护这些自然奇观，以便未来的世代也能享受。当我们继续探索世界的沙漠时，让我们铭记那些塑造我们星球景观的“移动沙丘”的美丽和重要性。