upwelling

简明释义

英[ʌpˈwelɪŋ]美[ʌpˈwelɪŋ]

n. 上涌；[海洋]上升流（指海水由较深层上升到较浅层的过程）

v. 上涌（upwell 的 ing 形式）

英英释义

单词用法

同义词

反义词

例句

1.Over the next two months, the northern flank of the mountain was deformed by a large bulge-a sign that upwelling magma was pushing up on the rock from below.

在这之后两个月间，北侧山体变形并出现一个巨大的隆起——这是底部岩浆上涌，岩石被推起来的标志。

2.In contrast, a la Nina increases upwelling in the same area, enhancing phytoplankton growth (December 1998, right).

相反，拉尼娜现象时，同一地区的上升流加速，加快了浮游植物的增长(1998年12月，右图)。

3.In spring, weak upwelling exists in the river mouth, whereas in summer downwelling occurs in steep area north and south of the mouth.

春季在长江口近岸存在弱上升流，夏季长江口外的陡坡区出现下降流，而长江口以北和以南的陡坡区出现上升流。

4.The upwelling of currents can also bring to light exotic creatures from the deep.

上涌的海流也能从海洋深处带来奇异的能发光的生物。

5.Phytoplankton are most abundant (yellow, high chlorophyll) in high latitudes and in upwelling zones along the equator and near coastlines.

位于高纬度以及赤道和靠近海岸线的上升流区的浮游植物最为丰富(黄色代表高叶绿素)。

6.The uranium deposits (occurrences) are regularly distributed along the mobile fault zone of the periphery of mantle upwelling.

铀矿床(点)沿地幔隆起周边构造活动带规律性分布。

7.Then there are those which sit over isolated "hotspots" of upwelling magma from deep in the earth, like the volcanoes of Hawaii.

然后就是那些座落于有不断从地底深处上涌岩浆的单独“热点”之上的火山，就像夏威夷的火山一样。

8.It was lower than that in the coastal upwelling area off Zhejiang coast.

其值低于浙江沿岸上升流海域。

9.According to dissecting depth of the zone of faults, the two zones of faults with upwelling of magma were transcrust (crust-upper mantle zone of faults).

根据断裂带切割深度，认定这两个断裂带均为超壳断裂，且都有岩浆上涌。

10.The warm water from the ocean can suppress upwelling, affecting local fisheries.

海洋中的温暖水域可能抑制上涌，影响当地渔业。

11.The phenomenon of upwelling is crucial for marine ecosystems as it brings nutrient-rich waters to the surface.

现象上涌对海洋生态系统至关重要，因为它将富含营养的水带到水面。

12.Fishermen often target areas where upwelling occurs because these regions are teeming with fish.

渔民们通常会瞄准发生上涌的区域，因为这些地区鱼类丰富。

13.Scientists study upwelling patterns to predict changes in fish populations.

科学家研究上涌模式以预测鱼类种群的变化。

14.In coastal regions, upwelling can lead to significant increases in phytoplankton growth.

在沿海地区，上涌可以导致浮游植物生长显著增加。

作文

The ocean is a vast and complex ecosystem, teeming with life and energy. One of the most fascinating processes that occur in marine environments is known as upwelling. This phenomenon plays a crucial role in supporting marine biodiversity and sustaining fisheries, making it an essential topic for anyone interested in oceanography and environmental science. Upwelling refers to the process where deep, cold, and nutrient-rich water rises to the surface, replacing the warmer surface water. This process is driven by various factors, including wind patterns, ocean currents, and the Earth's rotation. In coastal regions, upwelling is particularly significant. When winds blow along the coastline, they can push surface waters away from the shore. As these surface waters move outwards, deeper waters rise to fill the void. This influx of cold water brings essential nutrients, such as nitrates and phosphates, which are vital for the growth of phytoplankton, the foundation of the marine food web. The increase in phytoplankton populations leads to higher productivity in the ocean, benefiting everything from small fish to large marine mammals.The impact of upwelling on local fisheries cannot be overstated. Many of the world's most productive fishing grounds are located in areas where upwelling occurs. For example, the Humboldt Current off the coast of Peru is known for its rich marine life, largely due to the upwelling of nutrient-rich waters. This current supports one of the largest fisheries in the world, providing millions of tons of fish annually. Similarly, regions like the California Current and the Benguela Current in southwestern Africa also experience significant upwelling, contributing to their thriving fishing industries.However, upwelling is not only beneficial; it can also have negative effects on marine ecosystems. For instance, when upwelling occurs too frequently or intensely, it can lead to harmful algal blooms. These blooms can deplete oxygen levels in the water, leading to dead zones where marine life cannot survive. Furthermore, changes in climate patterns can alter the frequency and intensity of upwelling, potentially disrupting the delicate balance of marine ecosystems.In conclusion, upwelling is a vital oceanic process that enhances productivity and supports diverse marine life. Understanding this phenomenon is crucial for managing fisheries and conserving marine resources. As we face challenges such as climate change and overfishing, recognizing the importance of upwelling will help us develop sustainable practices to protect our oceans. By studying and monitoring upwelling zones, scientists can better predict changes in marine ecosystems and work towards preserving the health of our oceans for future generations.

海洋是一个广阔而复杂的生态系统，充满了生命和能量。在海洋环境中发生的最迷人的过程之一被称为上涌。这个现象在支持海洋生物多样性和维持渔业方面发挥着至关重要的作用，使其成为任何对海洋学和环境科学感兴趣的人必须了解的重要主题。上涌是指深处寒冷且富含营养的水上升到水面，取代温暖的表层水。这一过程是由多种因素驱动的，包括风向、洋流和地球的自转。在沿海地区，上涌尤其重要。当风沿着海岸吹动时，它们可以将表层水推离海岸。当这些表层水向外移动时，深层水便上升以填补空缺。这股寒冷水域的涌入带来了必需的营养物质，如硝酸盐和磷酸盐，这些对于浮游植物的生长至关重要，而浮游植物是海洋食物链的基础。浮游植物数量的增加导致海洋生产力的提高，惠及从小鱼到大型海洋哺乳动物的所有生物。上涌对当地渔业的影响不可低估。世界上许多最富饶的渔场位于发生上涌的地区。例如，秘鲁沿海的洪堡洋流因其丰富的海洋生物而闻名，这在很大程度上归功于营养丰富的水的上涌。该洋流每年支持着数百万吨鱼类的捕捞，是世界上最大的渔场之一。类似地，加利福尼亚洋流和西南非洲的本格拉洋流也经历了显著的上涌，促进了它们繁荣的渔业。然而，上涌不仅仅是有益的；它也可能对海洋生态系统产生负面影响。例如，当上涌发生得过于频繁或强烈时，可能会导致有害藻类的暴发。这些暴发可能会耗尽水中的氧气水平，导致死区的形成，海洋生物无法生存。此外，气候模式的变化可能会改变上涌的频率和强度，从而可能破坏海洋生态系统的微妙平衡。总之，上涌是一个重要的海洋过程，它增强了生产力并支持多样的海洋生命。理解这一现象对于管理渔业和保护海洋资源至关重要。随着我们面临气候变化和过度捕捞等挑战，认识到上涌的重要性将帮助我们制定可持续的做法，以保护我们的海洋。通过研究和监测上涌区，科学家们可以更好地预测海洋生态系统的变化，并努力保护我们海洋的健康，以造福未来的世代。