runoff

简明释义

英[ˈrʌnɒf]美[ˈrʌnɔːf]

n. [水文] 径流；决赛；流走的东西

adj. 决胜的

英英释义

单词用法

同义词

反义词

例句

1.You'd reduce water use and end runoff by recycling water in a closed irrigation system.

人们还可以在封闭的灌溉系统中循环用水以减少用水量、避免径流造成土肥流失。

2.Only at Titan's "Ontario Lacus," as one interesting site is called, the runoff consists of liquid hydrocarbons, not water.

只是在这个被某网站趣称为泰坦星的“安大略·拉库斯湖”中，流淌的是液态碳氢化合物，而非水。

3.If anything, there will actually be an embarrassing margin in favor of the opposition in the runoff.

如果有什么的话，决选实际上会出现令人尴尬的有利于反对派的差距。

4.Only at Titan's "Ontario Lacus, " as one interesting site is called, the runoff consists of liquid hydrocarbons, not water.

只是在这个被某网站趣称为泰坦星的“安大略·拉库斯湖”中，流淌的是液态碳氢化合物，而非水。

5.Fertilizer-laden runoff triggers explosive planktonic algae growth in coastal areas.

富含肥料的水流入大海造成了海岸附近水域的水藻大规模生长。

6.But over the last 30 years "there has been an increase in runoff," he said in an email exchange.

但在过去30年“径流一直不断增加，”他在电子邮件交流时说。

7.There will be a runoff between these two candidates on December 9th.

在12月9日，将举行这两位候选人的决胜选举。

8.Areas where surface runoff is directed.

地表径流汇集的地区。

9.The heavy rain caused a lot of runoff 径流, which flooded the nearby fields.

大雨导致了大量的径流，淹没了附近的田地。

10.Farmers are concerned about the chemical runoff 径流 from their fields contaminating the local water supply.

农民们担心他们田地里的化学径流会污染当地的水源。

11.The city implemented a new drainage system to reduce stormwater runoff 径流 into the rivers.

该市实施了一种新的排水系统，以减少暴雨时的径流流入河流。

12.After the snow melted, the runoff 径流 increased significantly, causing concern for downstream communities.

雪融化后，径流显著增加，令下游社区感到担忧。

13.The environmental study focused on the effects of agricultural runoff 径流 on local ecosystems.

这项环境研究集中于农业径流对当地生态系统的影响。

作文

In recent years, the issue of water pollution has gained significant attention across the globe. One of the major contributors to this problem is agricultural runoff, which refers to the water that flows over land and carries with it various pollutants into nearby streams, rivers, and lakes. This runoff can include fertilizers, pesticides, and sediments, all of which can have detrimental effects on aquatic ecosystems and human health. Agricultural practices have intensified over the decades, leading to increased use of chemical fertilizers and pesticides. When it rains, these chemicals are washed away from the fields into the waterways, creating a phenomenon known as non-point source pollution. Unlike point source pollution, which comes from a single identifiable source, runoff is diffuse and can be challenging to manage. The consequences of this type of pollution are far-reaching, affecting not only the quality of water but also the organisms that depend on these water bodies for survival. One of the most alarming effects of agricultural runoff is the occurrence of algal blooms, which can deplete oxygen levels in the water and create dead zones where aquatic life cannot survive. These blooms are often fueled by excess nutrients from fertilizers, particularly nitrogen and phosphorus. When these nutrients enter the water, they promote rapid growth of algae, which eventually die and decompose, consuming oxygen in the process. As a result, fish and other aquatic organisms may suffocate, leading to a decline in biodiversity. Moreover, the impact of runoff extends beyond ecological concerns. Contaminated water can pose serious health risks to humans, especially those who rely on these water sources for drinking, bathing, or irrigation. Pathogens and toxic substances present in runoff can lead to waterborne diseases and other health issues, highlighting the need for effective management strategies. To combat the challenges posed by agricultural runoff, various best management practices (BMPs) have been developed. These practices aim to minimize the amount of pollutants entering waterways. For instance, implementing buffer strips—areas of vegetation planted between agricultural fields and water bodies—can help absorb excess nutrients and reduce runoff. Additionally, rotating crops and reducing tillage can improve soil health and decrease erosion, further mitigating the impacts of runoff. Public awareness and education are also critical components in addressing the issue of runoff. Farmers, policymakers, and consumers must understand the implications of agricultural practices on water quality. By promoting sustainable farming techniques and encouraging responsible consumption of agricultural products, we can work towards healthier ecosystems and safer water supplies. In conclusion, agricultural runoff is a complex environmental challenge that requires a multifaceted approach. Through the implementation of effective management practices, public education, and collaboration among stakeholders, we can mitigate the negative impacts of runoff on our water resources. Protecting our waterways is essential not only for the health of our planet but also for the well-being of future generations.

近年来，水污染问题在全球范围内引起了显著关注。其中一个主要的贡献者是农业径流，指的是流经土地并携带各种污染物进入附近溪流、河流和湖泊的水。这种径流可能包括肥料、农药和沉积物，所有这些都可能对水生生态系统和人类健康产生不利影响。 随着几十年来农业实践的加剧，化学肥料和农药的使用增加。当下雨时，这些化学物质会从田地冲刷到水道中，形成一种称为非点源污染的现象。与来自单一可识别源的点源污染不同，径流是弥散的，管理起来可能具有挑战性。这种类型污染的后果是深远的，不仅影响水质，还影响依赖这些水体生存的生物。 农业径流最令人担忧的影响之一是藻类暴发的发生，这可能导致水中氧气水平下降，并创造出水生生命无法生存的死区。这些暴发通常是由肥料中的过量养分，特别是氮和磷推动的。当这些营养物质进入水中时，它们促进藻类的快速生长，最终死亡并分解，在此过程中消耗氧气。因此，鱼类和其他水生生物可能窒息，导致生物多样性下降。 此外，径流的影响超越了生态问题。污染水源可能对人类构成严重健康风险，尤其是那些依赖这些水源饮用、洗浴或灌溉的人。存在于径流中的病原体和有毒物质可能导致水传播疾病和其他健康问题，突显出有效管理策略的必要性。 为了应对农业径流带来的挑战，各种最佳管理实践（BMP）已被开发。这些实践旨在最小化进入水道的污染物数量。例如，在农业田地和水体之间实施缓冲带——种植植被的区域，可以帮助吸收多余的养分并减少径流。此外，轮作和减少耕作可以改善土壤健康并减少侵蚀，进一步减轻径流的影响。 公众意识和教育也是解决径流问题的关键组成部分。农民、政策制定者和消费者必须了解农业实践对水质的影响。通过推广可持续农业技术和鼓励负责任地消费农业产品，我们可以朝着更健康的生态系统和更安全的水源努力。 总之，农业径流是一个复杂的环境挑战，需要多方面的方法。通过实施有效的管理实践、公众教育以及利益相关者之间的合作，我们可以减轻径流对水资源的负面影响。保护我们的水道不仅对我们星球的健康至关重要，而且对未来几代人的福祉也至关重要。