dissolved oxygen

简明释义

溶解氧

英英释义

例句

1.Fish species vary in their requirements for dissolved oxygen.

鱼类对溶解氧的需求各不相同。

2.Aquarium owners should regularly check the dissolved oxygen levels in their tanks.

水族箱主人应定期检查水箱中的溶解氧水平。

3.High temperatures can decrease the amount of dissolved oxygen in water.

高温会降低水中溶解氧的含量。

4.The health of aquatic life is directly related to the levels of dissolved oxygen.

水生生物的健康与溶解氧的水平直接相关。

5.Monitoring dissolved oxygen in lakes can help identify pollution sources.

监测湖泊中的溶解氧可以帮助识别污染源。

作文

Dissolved oxygen is a crucial component in aquatic ecosystems, playing a vital role in the survival of fish and other aquatic organisms. It refers to the amount of oxygen that is present in water, which is essential for the respiration of fish, invertebrates, and microorganisms. Without adequate levels of dissolved oxygen (溶解氧), aquatic life would struggle to survive, leading to a decline in biodiversity and the overall health of freshwater and marine environments.The sources of dissolved oxygen (溶解氧) in water bodies include atmospheric diffusion, photosynthesis by aquatic plants, and the aeration caused by wind and water movement. During photosynthesis, plants and algae release oxygen into the water, significantly contributing to the levels of dissolved oxygen (溶解氧). This process is especially important in shallow waters where sunlight can penetrate, allowing photosynthetic organisms to thrive.However, several factors can affect the concentration of dissolved oxygen (溶解氧) in water. Temperature plays a significant role; warmer water holds less oxygen than cooler water. Additionally, the presence of organic matter can lead to increased microbial activity, which consumes oxygen during decomposition, potentially leading to hypoxic conditions (low oxygen levels). When dissolved oxygen (溶解氧) levels drop too low, it can result in fish kills and the collapse of aquatic ecosystems.Monitoring dissolved oxygen (溶解氧) levels is essential for maintaining healthy aquatic environments. Various methods are used to measure these levels, including the Winkler titration method and electronic oxygen sensors. These tools help scientists and environmentalists assess the health of water bodies and take necessary actions to protect them.Human activities also have a significant impact on dissolved oxygen (溶解氧) levels. Pollution from agricultural runoff, industrial discharges, and sewage can introduce excess nutrients into water bodies, leading to algal blooms. While these blooms can initially increase dissolved oxygen (溶解氧) through photosynthesis, they often result in a rapid decrease in oxygen when the algae die and decompose, creating dead zones where aquatic life cannot survive.In conclusion, dissolved oxygen (溶解氧) is a fundamental element of aquatic ecosystems, critical for the survival of many species. Understanding the factors that influence its levels and the consequences of its depletion is vital for the conservation of our water resources. By monitoring and managing dissolved oxygen (溶解氧) levels, we can help ensure that our aquatic environments remain healthy and sustainable for future generations.

溶解氧是水生生态系统中的一个关键组成部分，在鱼类和其他水生生物的生存中发挥着至关重要的作用。它指的是水中存在的氧气量，这对鱼类、无脊椎动物和微生物的呼吸至关重要。如果没有足够的dissolved oxygen（溶解氧）水平，水生生命将难以生存，导致生物多样性下降以及淡水和海洋环境的整体健康恶化。水体中dissolved oxygen（溶解氧）的来源包括大气扩散、水生植物的光合作用，以及风和水流引起的曝气。在光合作用过程中，植物和藻类将氧气释放到水中，显著提高了dissolved oxygen（溶解氧）水平。这个过程在阳光能够穿透的浅水区尤为重要，使光合生物得以繁茂生长。然而，几个因素可以影响水中dissolved oxygen（溶解氧）的浓度。温度起着重要作用；温暖的水比凉爽的水含有更少的氧气。此外，有机物的存在可能导致微生物活动增加，分解过程消耗氧气，可能导致缺氧状态（低氧水平）。当dissolved oxygen（溶解氧）水平降得太低时，可能导致鱼类死亡和水生生态系统的崩溃。监测dissolved oxygen（溶解氧）水平对于维持健康的水生环境至关重要。使用多种方法来测量这些水平，包括温克勒滴定法和电子氧传感器。这些工具帮助科学家和环保人士评估水体的健康状况，并采取必要措施保护它们。人类活动也对dissolved oxygen（溶解氧）水平产生重大影响。农业径流、工业排放和污水污染可能会向水体中引入过量的营养物质，导致藻类暴发。虽然这些暴发可以通过光合作用初步增加dissolved oxygen（溶解氧），但当藻类死亡并分解时，通常会导致氧气快速减少，形成死区，水生生命无法生存。总之，dissolved oxygen（溶解氧）是水生生态系统的基本元素，对许多物种的生存至关重要。理解影响其水平的因素及其减少的后果对于保护我们的水资源至关重要。通过监测和管理dissolved oxygen（溶解氧）水平，我们可以帮助确保我们的水生环境保持健康和可持续，为未来的世代服务。