base flow

简明释义

1. 底流; 2. 基本径流; 3. 基流;

英英释义

例句

1.The river's base flow 基流 is essential for maintaining aquatic ecosystems during dry seasons.

河流的基流 base flow 对于在干旱季节维持水生生态系统至关重要。

2.Hydrologists measure the base flow 基流 to assess groundwater contributions to surface water.

水文专家测量基流 base flow 来评估地下水对地表水的贡献。

3.Monitoring base flow 基流 helps in predicting flood events.

监测基流 base flow 有助于预测洪水事件。

4.The base flow 基流 in this stream is primarily fed by underground springs.

这条溪流的基流 base flow 主要由地下泉水供给。

5.During drought, the base flow 基流 can significantly decrease, impacting water availability.

在干旱期间，基流 base flow 可能会显著减少，影响水资源的可用性。

作文

Water is an essential resource for all living beings on Earth. It plays a crucial role in maintaining ecosystems, supporting agriculture, and providing drinking water to communities. One important aspect of the hydrological cycle that often goes unnoticed is the concept of base flow. 基流 refers to the portion of streamflow that is sustained between precipitation events, fed to streams by delayed pathways such as groundwater. Understanding base flow is vital for effective water resource management and environmental conservation.The significance of base flow lies in its contribution to the overall health of river systems. During dry periods, when there is little to no rainfall, base flow ensures that rivers continue to flow, providing essential habitats for aquatic life. For example, fish and other organisms rely on consistent water levels to thrive. If base flow is diminished due to over-extraction of groundwater or changes in land use, it can lead to habitat degradation and a decline in biodiversity.Moreover, base flow plays a crucial role in maintaining water quality. When water levels are stable, it reduces the concentration of pollutants, thereby improving the overall health of the aquatic ecosystem. Conversely, if base flow is reduced, pollutants can become more concentrated, leading to harmful algal blooms and other water quality issues. This highlights the interconnectedness of hydrology and environmental health.In many regions, understanding and managing base flow is becoming increasingly important due to climate change. As weather patterns shift, some areas may experience prolonged droughts or intense rainfall events, both of which can impact base flow. For instance, during a drought, reduced precipitation can lead to lower groundwater levels, subsequently decreasing base flow. On the other hand, heavy rain can lead to increased runoff, which may temporarily boost streamflow but can also disrupt the natural recharge processes that sustain base flow.To effectively manage water resources, it is essential to monitor and assess base flow regularly. Hydrologists often use various methods, such as streamflow gauging stations and groundwater monitoring wells, to gather data on base flow levels. This information helps inform water management strategies, ensuring that sufficient water is available for both human use and ecological health.In conclusion, the concept of base flow is fundamental to understanding the dynamics of freshwater ecosystems. By recognizing the importance of base flow in sustaining river systems, maintaining water quality, and adapting to climate change, we can better protect our water resources for future generations. Effective management of base flow not only benefits the environment but also supports the communities that depend on these vital water sources. As we move forward, it is imperative that we prioritize the preservation of base flow to ensure a sustainable and healthy ecosystem for all.

水是地球上所有生物的重要资源。它在维持生态系统、支持农业和为社区提供饮用水方面起着至关重要的作用。一个常常被忽视的水文循环的重要方面是基流的概念。基流指的是在降水事件之间持续的河流流量，通过地下水等延迟通道向河流供水。理解基流对于有效的水资源管理和环境保护至关重要。基流的重要性在于它对河流系统整体健康的贡献。在干旱时期，当几乎没有降雨时，基流确保河流继续流动，为水生生物提供必需的栖息地。例如，鱼类和其他生物依赖于稳定的水位生存。如果由于过度抽取地下水或土地利用变化而减少了基流，可能导致栖息地退化和生物多样性的下降。此外，基流在维持水质方面也发挥着关键作用。当水位稳定时，它减少了污染物的浓度，从而改善水生生态系统的整体健康。相反，如果减少了基流，污染物的浓度可能会增加，导致有害藻华和其他水质问题。这突显了水文学与环境健康之间的相互联系。在许多地区，由于气候变化，理解和管理基流变得越来越重要。随着天气模式的变化，一些地区可能经历长期干旱或强降雨事件，这两者都可能影响基流。例如，在干旱期间，降水减少可能导致地下水位降低，随之减少基流。另一方面，强降雨可能导致径流增加，这可能暂时提升河流流量，但也可能扰乱维持基流的自然补给过程。为了有效管理水资源，定期监测和评估基流至关重要。水文学家通常使用各种方法，例如河流流量测量站和地下水监测井，收集有关基流水平的数据。这些信息有助于制定水管理策略，确保人类使用和生态健康所需的水量充足。总之，基流的概念是理解淡水生态系统动态的基础。通过认识到基流在维持河流系统、维护水质和适应气候变化中的重要性，我们可以更好地保护我们的水资源，以造福未来几代人。有效管理基流不仅有利于环境，也支持依赖这些重要水源的社区。展望未来，我们必须优先考虑保护基流，以确保可持续和健康的生态系统。