river gravel

简明释义

河砾石

英英释义

例句

1.In landscaping, river gravel 河卵石 is often used for pathways and decorative features.

在园艺中，河卵石常用于小径和装饰性特征。

2.For drainage purposes, we installed a layer of river gravel 河卵石 around the house.

为了排水，我们在房子周围安装了一层河卵石。

3.The fish pond was lined with river gravel 河卵石 to provide a natural habitat.

鱼塘用河卵石铺底，以提供自然栖息地。

4.The construction team used river gravel 河卵石 to create a solid foundation for the new building.

施工队使用河卵石来为新建筑打下坚实的基础。

5.We collected river gravel 河卵石 from the stream to use in our garden.

我们从小溪中收集了河卵石以用于我们的花园。

作文

In the world of geology and natural resources, various materials play crucial roles in shaping landscapes and supporting ecosystems. One such material is river gravel, which consists of small, rounded stones typically found in riverbeds and along riverbanks. These stones are formed through the natural process of erosion, where larger rocks are worn down over time by the constant flow of water. The significance of river gravel extends beyond its physical presence; it has numerous applications in construction, landscaping, and environmental conservation.Firstly, the use of river gravel in construction cannot be overstated. It serves as a fundamental component in concrete production, providing strength and stability to structures. Builders often prefer river gravel over other types of aggregates due to its smooth texture and uniform size, which contribute to better workability and durability of concrete. Additionally, river gravel is used in the creation of drainage systems, ensuring proper water management around buildings and roads. By allowing excess water to flow away, river gravel helps prevent flooding and erosion, making it an essential material in urban planning.Moreover, river gravel plays a significant role in landscaping projects. Gardeners and landscape architects utilize this material to create visually appealing pathways, decorative borders, and even as a ground cover for plants. The natural colors and textures of river gravel can enhance the aesthetic appeal of outdoor spaces, providing a rustic charm that complements various design styles. Furthermore, it is an environmentally friendly option, as it promotes drainage and reduces soil erosion, contributing to healthier plant growth.In addition to its practical uses, river gravel also has ecological importance. It provides habitat for various aquatic species, including fish and invertebrates, which rely on the structure and composition of riverbeds for breeding and feeding. The presence of river gravel in rivers contributes to the overall health of aquatic ecosystems, as it supports biodiversity and maintains the natural balance of these environments. Conservation efforts often focus on preserving areas with abundant river gravel, recognizing its critical role in sustaining wildlife.Despite its many benefits, the extraction of river gravel must be approached with caution. Over-extraction can lead to significant environmental issues, such as habitat destruction, increased sedimentation, and altered water flow patterns. Sustainable practices are essential to ensure that the benefits of river gravel can be enjoyed without compromising the integrity of ecosystems. This includes monitoring extraction sites, implementing restoration projects, and exploring alternative materials when necessary.In conclusion, river gravel is more than just a collection of stones; it is a vital resource with diverse applications in construction, landscaping, and ecology. Understanding its importance allows us to appreciate the natural processes that create it and the careful management required to maintain its availability. As we continue to navigate the challenges of urbanization and environmental conservation, recognizing the value of river gravel will be crucial in promoting sustainable practices and protecting our natural resources.

在地质学和自然资源的世界中，各种材料在塑造景观和支持生态系统方面发挥着至关重要的作用。其中一种材料是河卵石，它由通常在河床和河岸发现的小圆石组成。这些石头通过侵蚀的自然过程形成，较大的岩石在水流的不断冲刷下逐渐被磨损。河卵石的重要性不仅体现在其物理存在上；它在建筑、园艺和环境保护方面有着众多应用。首先，在建筑中使用河卵石的重要性不容小觑。它是混凝土生产的基本组成部分，为结构提供强度和稳定性。由于其光滑的质地和均匀的大小，建筑商通常更喜欢使用河卵石而非其他类型的骨料，这有助于混凝土的可操作性和耐久性。此外，河卵石还用于排水系统的建设，确保建筑物和道路周围的水管理得当。通过让多余的水流走，河卵石帮助防止洪水和侵蚀，使其成为城市规划中的重要材料。此外，河卵石在园艺项目中也发挥着重要作用。园丁和景观设计师利用这种材料创建视觉上吸引人的小径、装饰边界，甚至作为植物的覆盖层。河卵石的自然颜色和质感可以增强户外空间的美学吸引力，提供一种与各种设计风格相辅相成的乡村魅力。此外，它是一种环保的选择，因为它促进排水并减少土壤侵蚀，从而有助于植物的健康生长。除了其实际用途，河卵石在生态上也很重要。它为各种水生物种提供栖息地，包括鱼类和无脊椎动物，这些生物依赖河床的结构和成分进行繁殖和觅食。河卵石在河流中的存在有助于水生生态系统的整体健康，因为它支持生物多样性并维持这些环境的自然平衡。保护工作通常集中在保护丰富的河卵石区域，认识到其在维持野生动物方面的关键作用。尽管有许多好处，但提取河卵石必须谨慎对待。过度开采可能导致严重的环境问题，如栖息地破坏、沉积物增加和水流模式改变。可持续的做法对于确保能够享受河卵石的好处而不损害生态系统的完整性至关重要。这包括监测开采地点、实施恢复项目以及必要时探索替代材料。总之，河卵石不仅仅是一堆石头；它是一种具有多种用途的重要资源，在建筑、园艺和生态方面都发挥着重要作用。理解其重要性使我们能够欣赏创造它的自然过程以及维护其可用性所需的谨慎管理。随着我们继续应对城市化和环境保护的挑战，认识到河卵石的价值将对促进可持续实践和保护我们的自然资源至关重要。