estuaries

简明释义

英[ˈɛstjuːəriz]美[ˈɛstʃuˌɛriz]

n. （江河入海的）河口（estuary 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Water could surge over levies and flood estuaries, where organisms depend on a careful balance between salt and freshwater.

汹涌的海水可能会漫过堤岸（原文levies 似有误，估计是levees）和泄洪河口，那里的海水和淡水间保持着细微的平衡，是有机生物体赖以生存之处。

2.They may also enter estuaries and mangroves in search of prey.

他们也可输入猎物寻找的红树林，河口。

3.Now, many of their estuaries and coastal seas are suffering the same malady.

但是现在，那里的许多河口和沿海地区却出现了同样的问题。

4.They haunt shallow waters like bays and estuaries worldwide-and some species even ascend freshwater rivers.

它们常出没于像海湾的浅水水域，世界上的海口处，有些种类甚至追溯到内河中。

5.With fisheries and estuaries closed, they cannot easily find other jobs.

但随着渔场和和河口场的关闭，他们很难找到其他工作。

6.Unfortunately, , this function also makes estuaries very sensitive to enviro-mental pollution.

不幸的是， 髧这个作用也使河口对环境污染很敏感。

7.The alongshore drifts caused by waves appear only in the estuaries and adjacent areas.

波浪作用下的沿岸漂沙只限于各河口及附近海岸。

8.Ponds, marshes, mangroves and intertidal areas at estuaries and coastal areas are good examples.

鱼塘，淡水沼泽森林，红树林，河口及浅海区域均是最好的例子。

9.In October, the United Nations Environment Program declared the Yangtze and Pearl River estuaries dead zones.

去年十月，联合国环境署宣布扬子江及珠江入海口为死水区。

10.The wildlife in the estuaries 河口 is diverse and includes many species of birds and fish.

在这些河口中，野生动物种类繁多，包括许多鸟类和鱼类。

11.Pollution can severely affect the health of estuaries 河口, leading to a decline in marine life.

污染会严重影响河口的健康，导致海洋生物的减少。

12.Many communities rely on the resources provided by estuaries 河口 for their livelihoods.

许多社区依赖于河口提供的资源来维持生计。

13.The mixing of fresh and saltwater in estuaries 河口 creates unique ecosystems.

在河口中，淡水和盐水的混合形成了独特的生态系统。

14.Birdwatchers often visit estuaries 河口 to observe migratory birds.

观鸟者经常访问河口观察候鸟。

作文

Estuaries are unique and dynamic ecosystems where freshwater from rivers meets and mixes with saltwater from the ocean. These areas are characterized by their brackish water, which is a mix of salt and fresh water, creating a habitat that supports a diverse range of plant and animal life. The importance of estuaries (河口) cannot be overstated, as they serve numerous ecological, economic, and social functions. Firstly, estuaries (河口) act as crucial nurseries for many marine species. Fish such as flounder, salmon, and shrimp rely on these environments for breeding and development. The shallow waters provide shelter and abundant food sources for juvenile fish, which helps to ensure the survival of various species. As a result, estuaries (河口) contribute significantly to the productivity of coastal fisheries, supporting both commercial and recreational fishing industries. Moreover, estuaries (河口) play a vital role in improving water quality. They act as natural filters, trapping pollutants and sediments from rivers before they enter the open ocean. The vegetation found in estuaries (河口), such as mangroves and salt marshes, helps to absorb excess nutrients and contaminants, thus protecting marine ecosystems from degradation. This filtering process is essential in maintaining the health of coastal waters and preserving biodiversity. In addition to their ecological significance, estuaries (河口) also provide substantial economic benefits. Many communities rely on estuaries (河口) for tourism and recreation. Activities such as birdwatching, kayaking, and fishing attract visitors and generate revenue for local economies. Furthermore, estuaries (河口) often support industries such as aquaculture, where shellfish and other seafood are farmed, contributing to food security and employment opportunities. Socially, estuaries (河口) hold cultural significance for many indigenous communities. These areas have historically been sites for fishing, gathering, and other traditional practices. The preservation of estuaries (河口) is not only crucial for environmental health but also for maintaining the cultural heritage and livelihoods of these communities. Despite their importance, estuaries (河口) face numerous threats. Urbanization, pollution, and climate change are significant challenges that jeopardize the health of these ecosystems. Coastal development often leads to habitat destruction, while runoff from agriculture and industry can introduce harmful substances into estuaries (河口). Additionally, rising sea levels due to climate change can alter the salinity and hydrology of estuaries (河口), further threatening their delicate balance. To protect and preserve estuaries (河口), concerted efforts are needed at local, national, and global levels. Implementing sustainable management practices, restoring degraded habitats, and reducing pollution are crucial steps in ensuring the long-term health of these vital ecosystems. Public awareness and education about the value of estuaries (河口) can also foster community involvement in conservation efforts. In conclusion, estuaries (河口) are essential ecosystems that provide numerous ecological, economic, and social benefits. Their unique characteristics make them vital for the survival of many species and the well-being of human communities. Protecting estuaries (河口) is not just an environmental issue; it is a matter of sustaining our natural heritage and ensuring a healthy future for generations to come.

河口是独特而动态的生态系统，淡水从河流汇入并与海洋的盐水混合。这些地区的特点是咸淡水交融，形成了支持多种植物和动物生命的栖息地。河口的重要性不容小觑，因为它们在生态、经济和社会功能上发挥着重要作用。 首先，河口作为许多海洋物种的重要育婴场。比目鱼、鲑鱼和虾等鱼类依赖这些环境进行繁殖和发育。浅水区为幼鱼提供了庇护和丰富的食物来源，有助于确保各种物种的生存。因此，河口对沿海渔业的生产力贡献巨大，支持商业和休闲捕鱼产业。 此外，河口在改善水质方面也发挥着至关重要的作用。它们充当自然过滤器，在淡水流入开放海洋之前捕捉污染物和沉积物。存在于河口的植被，如红树林和盐沼，有助于吸收过量的营养物质和污染物，从而保护海洋生态系统免受退化。这一过滤过程对于维持沿海水域的健康和保护生物多样性至关重要。 除了生态重要性，河口还提供了可观的经济利益。许多社区依赖河口进行旅游和休闲活动。鸟类观察、皮划艇和钓鱼等活动吸引游客，为当地经济创造收入。此外，河口通常支持水产养殖等产业，培育贝类和其他海鲜，为食品安全和就业机会做出贡献。 在社会层面，河口对许多土著社区具有文化意义。这些地区历来是捕鱼、采集和其他传统活动的场所。保护河口不仅对环境健康至关重要，而且对维护这些社区的文化遗产和生计也是如此。 尽管如此，河口仍面临诸多威胁。城市化、污染和气候变化是危及这些生态系统健康的重大挑战。沿海开发往往导致栖息地破坏，而农业和工业的径流可能将有害物质引入河口。此外，由于气候变化导致的海平面上升可能改变河口的盐度和水文特征，进一步威胁其脆弱的生态平衡。 为了保护和维护河口，需要在地方、国家和全球层面上共同努力。实施可持续管理实践、恢复退化栖息地以及减少污染是确保这些重要生态系统长期健康的关键步骤。提高公众对河口价值的认识和教育也可以促进社区参与保护工作。 总之，河口是提供众多生态、经济和社会利益的重要生态系统。它们独特的特性使其对许多物种的生存和人类社区的福祉至关重要。保护河口不仅仅是一个环境问题；它关乎维持我们的自然遗产，确保子孙后代的健康未来。