bottom sediment

简明释义

海底沉淀物

英英释义

例句

1.The presence of certain minerals in the bottom sediment indicates the geological history of the area.

在底部沉积物中某些矿物的存在表明该地区的地质历史。

2.To understand the historical climate changes, scientists analyzed the layers of bottom sediment from the core samples.

为了理解历史气候变化，科学家分析了核心样本中的底部沉积物层。

3.During the dive, we noticed a thick layer of bottom sediment covering the ocean floor.

潜水时，我们注意到海底覆盖着一层厚厚的底部沉积物。

4.The researchers collected samples of the water along with the bottom sediment to analyze the pollution levels.

研究人员收集了水样以及底部沉积物以分析污染水平。

5.The bottom sediment in this lake is rich in nutrients, which supports a diverse ecosystem.

这个湖泊的底部沉积物富含营养，支持多样的生态系统。

作文

The study of aquatic ecosystems often leads researchers to explore the intricate relationships between various environmental factors. One crucial aspect that scientists examine is the role of bottom sediment in shaping these ecosystems. 底部沉积物 refers to the material that settles at the bottom of a body of water, which can include organic matter, minerals, and other particles. Understanding this phenomenon is essential for several reasons. Firstly, bottom sediment plays a vital role in nutrient cycling within aquatic environments. As organic materials decompose in the bottom sediment, they release nutrients back into the water column. This process supports the growth of phytoplankton and other aquatic plants, which are fundamental to the food web. Without healthy bottom sediment, the balance of nutrients in the water can be disrupted, leading to algal blooms and oxygen depletion. Moreover, bottom sediment serves as a habitat for various organisms. Many species of fish, invertebrates, and microorganisms rely on bottom sediment for shelter and food. For instance, benthic organisms, such as worms and mollusks, thrive in the bottom sediment where they can find organic matter to consume. The diversity of life supported by bottom sediment contributes to the overall health of aquatic ecosystems. Additionally, the composition of bottom sediment can provide valuable information about the history of an aquatic environment. Layers of sediment accumulate over time, preserving evidence of past ecological conditions. By studying the characteristics of bottom sediment, scientists can reconstruct historical climate patterns, pollution levels, and biodiversity changes. This knowledge is crucial for informing conservation efforts and managing aquatic resources effectively. However, human activities pose significant threats to the integrity of bottom sediment. Pollution from agricultural runoff, industrial discharges, and urban development can lead to the degradation of bottom sediment quality. Contaminants may accumulate in the bottom sediment, posing risks to aquatic life and potentially entering the food chain. Furthermore, dredging and other disturbances can disrupt the natural layering of bottom sediment, affecting the organisms that depend on it. In conclusion, the importance of bottom sediment in aquatic ecosystems cannot be overstated. It is essential for nutrient cycling, provides habitat for diverse species, and offers insights into environmental history. Protecting the quality and integrity of bottom sediment is crucial for maintaining healthy aquatic environments. As we continue to study and understand the complexities of these systems, it is imperative that we consider the impacts of our actions on bottom sediment and work towards sustainable practices that safeguard our precious water bodies.

水生生态系统的研究常常引导研究人员探索各种环境因素之间错综复杂的关系。科学家们检查的一个关键方面是底部沉积物在塑造这些生态系统中的作用。底部沉积物是指沉积在水体底部的物质，包括有机物、矿物质和其他颗粒。理解这一现象至关重要，原因有几个。首先，底部沉积物在水生环境中的养分循环中起着至关重要的作用。当有机物在底部沉积物中分解时，它们将养分释放回水柱中。这一过程支持浮游植物和其他水生植物的生长，这些植物是食物网的基础。如果没有健康的底部沉积物，水中的养分平衡可能会被破坏，导致藻类暴发和缺氧。此外，底部沉积物为各种生物提供栖息地。许多鱼类、无脊椎动物和微生物物种依赖于底部沉积物来寻找庇护和食物。例如，底栖生物如蠕虫和软体动物在底部沉积物中繁衍生息，能够找到有机物进行摄食。底部沉积物所支持的生命多样性对水生生态系统的整体健康至关重要。此外，底部沉积物的组成可以提供关于水生环境历史的宝贵信息。沉积层随时间积累，保存了过去生态条件的证据。通过研究底部沉积物的特征，科学家可以重建历史气候模式、污染水平和生物多样性变化。这些知识对告知保护工作和有效管理水生资源至关重要。然而，人类活动对底部沉积物的完整性构成了重大威胁。农业径流、工业排放和城市开发造成的污染可能导致底部沉积物质量的退化。污染物可能在底部沉积物中积累，对水生生物构成风险，并可能进入食物链。此外，疏浚和其他干扰可能破坏底部沉积物的自然层次，影响依赖于其的生物。总之，底部沉积物在水生生态系统中的重要性不容小觑。它对养分循环至关重要，为多样化物种提供栖息地，并提供环境历史的见解。保护底部沉积物的质量和完整性对于维持健康的水生环境至关重要。在我们继续研究和理解这些系统的复杂性时，必须考虑我们的行动对底部沉积物的影响，并努力实现可持续的实践，以保护我们珍贵的水体。