upstream end

简明释义

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英英释义

例句

1.The water quality is often better at the upstream end of the river compared to the downstream areas.

与下游区域相比，河流的上游端水质通常更好。

2.The upstream end of the stream is a great spot for fishing due to its abundant aquatic life.

由于水生生物丰富，溪流的上游端是钓鱼的好地方。

3.We found a blockage at the upstream end of the irrigation system, which is affecting the entire field.

我们在灌溉系统的上游端发现了堵塞，这影响了整个田地。

4.We need to monitor the pollution levels at the upstream end of the pipeline to prevent contamination.

我们需要监测管道上游端的污染水平，以防止污染。

5.The fish population is thriving at the upstream end of the lake where the water is cleaner.

在湖泊的上游端，由于水质更清洁，鱼类种群繁荣。

作文

In the world of river ecosystems, the term upstream end refers to the section of the river that is closest to its source. This area is crucial for the overall health of the river system as it plays a significant role in the ecological balance and water quality. The upstream end is where many important processes occur, such as sediment transport and nutrient cycling. Understanding the dynamics of this region can provide insights into the broader environmental issues affecting waterways.The upstream end is often characterized by clear, cold water, and it serves as a habitat for various aquatic species, including fish and macroinvertebrates. These organisms are essential for maintaining the food web and contribute to the biodiversity of the ecosystem. For instance, trout and other cold-water fish thrive in the cooler temperatures found at the upstream end, making it a vital area for fishing and recreational activities.Moreover, the health of the upstream end significantly impacts the downstream areas of the river. Pollutants or changes in land use near the source can lead to detrimental effects on water quality as these issues travel downstream. For example, if agricultural runoff occurs near the upstream end, it can introduce excess nutrients into the water, leading to algal blooms that affect not only the upstream habitats but also those further along the river.Conservation efforts often focus on protecting the upstream end because preserving this area can help maintain the integrity of the entire river system. Organizations dedicated to river health advocate for sustainable land practices in the surrounding areas to reduce pollution and protect natural habitats. By doing so, they aim to ensure that the upstream end remains a thriving ecosystem that supports biodiversity and provides clean water.Additionally, the upstream end is vital for the cultural and recreational aspects of river life. Many communities rely on the rivers for activities such as kayaking, fishing, and hiking. The scenic beauty of the upstream end attracts tourists and locals alike, contributing to the local economy. Therefore, understanding and promoting the health of this area is not just an environmental concern but also an economic one.In conclusion, the upstream end of a river is a critical component of the aquatic ecosystem. Its health influences not only the immediate environment but also the downstream areas. By focusing on conservation and sustainable practices, we can protect this vital region, ensuring that it continues to support a diverse range of species and provide recreational opportunities for generations to come. The significance of the upstream end cannot be overstated; it is the lifeblood of the river, sustaining both nature and the communities that depend on it.

在河流生态系统中，术语upstream end指的是距离河源最近的河段。这个区域对整个河流系统的健康至关重要，因为它在生态平衡和水质方面发挥着重要作用。upstream end是许多重要过程发生的地方，例如沉积物运输和养分循环。理解这一地区的动态可以为更广泛的水道环境问题提供见解。upstream end通常以清澈、寒冷的水为特征，是各种水生物种的栖息地，包括鱼类和大型无脊椎动物。这些生物对于维持食物网至关重要，并且有助于生态系统的生物多样性。例如，鳟鱼和其他冷水鱼在upstream end的较低温度下生存良好，使其成为钓鱼和休闲活动的重要区域。此外，upstream end的健康显著影响河流下游区域。源头附近的污染物或土地使用变化可能对水质产生不利影响，因为这些问题会向下游传播。例如，如果在upstream end附近发生农业径流，就可能将过量的养分引入水中，导致藻类暴发，这不仅影响上游栖息地，还影响河流更远处的区域。保护工作通常集中在保护upstream end上，因为保护这一地区可以帮助保持整个河流系统的完整性。专注于河流健康的组织倡导在周边地区采取可持续的土地实践，以减少污染并保护自然栖息地。通过这样做，他们旨在确保upstream end仍然是一个繁荣的生态系统，支持生物多样性并提供清洁水源。此外，upstream end对河流生活的文化和休闲方面至关重要。许多社区依赖河流进行皮划艇、钓鱼和徒步旅行等活动。upstream end的自然美吸引了游客和当地居民，为当地经济做出了贡献。因此，理解和促进这一地区的健康不仅是环境问题，也是经济问题。总之，河流的upstream end是水生生态系统的关键组成部分。它的健康影响不仅是直接环境，还有下游区域。通过关注保护和可持续实践，我们可以保护这一重要区域，确保它继续支持多样化的物种并为子孙后代提供休闲机会。upstream end的重要性不容小觑；它是河流的生命线，维持着自然和依赖它的社区。