内陆水体生态系统在维持全球物质循环和水分循环中具有重要作用。
The terrestrial aquatic ecosystems play an important role in sustaining global matter and water cycle.
主要生物控制作用包括，一方面促进水体生态系统的物质循环和能量流动，加速营养元素沉降或脱离水生生态系统；
The main biological role include, 1) promoting water ecosystems material circulation, energy flowing and speed up the settlement of nutrients from aquatic ecosystems;
水体底泥？(沉积物)是河流、湖泊等自然水体生态系统的重要组成部分，也是水体生态系统物质循环中的一个重要环节。
Water sediment (sediment) is an important part of the rivers, lakes and other natural water ecosystems, and it's also a significant integral link of material cycle in water ecosystem.
超声波的空化作用能够抑制藻类生长，从保护水体生态系统以及超声波技术本身的特点考虑，低频率、低功率的超声波更适合于水体抑藻应用。
Consider of water ecosystem protection and characteristics of ultrasonic technology, low frequency and low power ultrasonic especially suit to control algal growth in water body.
它提供了300多个美国海岸受缺氧影响的水体综合清单。在八个案例研究中，突出介绍了一系列受缺氧影响有代表性的生态系统。
It provides a comprehensive list of the more than 300 U.S. coastal water bodies affected by hypoxia and, in eight case studies, highlights a range of representative ecosystems affected by hypoxia.
由于沿岸的营养流失和过度捕捞，海洋生态系统遭受由于海岸带侵蚀造成的水体营养水平改变，还有过度捕捞，也极大破坏了几乎全球各地的食物网。
Ocean ecosystems are beset by changes in nutrient levels due to run off near the coasts and by overfishing, which plays havoc with food webs nearly everywhere.
执行理事霍克·罗萨勒斯将这片荒野称之为“神圣的生态系统”。 这个“神圣的生态系统”被狼溪（右侧）等水体穿过，是一项修复鲑鱼栖息地的焦点所在。
The"sacred ecosystem," as executive director Hawk Rosales calls it, isthreaded by waters like Wolf Creek (right), focus of aproject to restore salmon habitat.
城市中的水体是城市生态系统的重要组成。
In the city water body is important composition of the city ecosystem.
该工程兼顾水体修复、生态系统重建与景观改善的功能，湖泊水质得以明显改善。
The project gives consideration to the water restoration, ecosystem rebuilding and landscape improvement. The treated water is improved significantly.
在河流生态系统中，浮游藻类的生长繁殖与在水体中的滞留时间有着特殊重要的关系。
The growth and reproduction of phytoplankton are correlated with the remaining time in river ecosystem.
利用水生生态系统治理水体污染是污水处理领域的研究热点之一。
Research on water pollution control by aquatic ecosystems is a focus of wastewater treatment in recent years.
摇蚊在各类水体中广泛分布且大量发生，在稻田生态系统中也有大量发生。
The chironomid midge is one of world wide distribution insects and normally occurs in a great abundance among many kinds of water bodies.
水，乃生活之本。在这个星球上，只有极少的一部分水——占不足全部水体的百分之一——服务于近70亿的人口以及无数的淡水水生态系统。
Water is the basis of life, and on this planet only a tiny share—less than one percent of all water—is available for nearly 7 billion people and a myriad of freshwater aquatic ecosystems.
研究了模拟水生生态系统中沉水植物对水体营养物质消减的影响。
Effect of submerged plants on nutrient removal was studied in small model aquatic eco-systems consisting of water, sediment and submerged plants.
而且随水土流失进入水体，从而加剧了对环境的污染，导致生态系统失调。
And when the excessive fertilizer enters into the water, the environment is polluted and turned worse, and the ecosystem system would be out of tune.
在设计中通过对不同场所的空间塑造营造出不同的主题空间，体现水体、生态系统、游人的相互关系。
Different theme Spaces are created according to the different Spaces of the sites reflecting the relations between the water body, the eco-system and the visitors.
由于很多淡水水体体积很小，所以生物成分在淡水中对生态系统的影响通常要比在海水或土壤中对生态系统的影响大。
The influence of the biological component on ecosystem is often greater in fresh waters than in marine or terrestrial systems, because of the small size of many freshwater bodies.
沉积物-水体界面氮磷等营养物质的迁移转化对湖泊生态系统的研究具有重要意义。
Nitrogen and phosphorus removing and transforming in sediment-water interface are very important for understanding lake ecosystem.
该工程兼顾水体修复、生态系统重建与景观改善的功能，湖泊水质得以明显改善。
The project gives consideration to the water restoration, ecosystem rebuilding and landscape improvement.
该工程兼顾水体修复、生态系统重建与景观改善的功能，湖泊水质得以明显改善。
The project gives consideration to the water restoration, ecosystem rebuilding and landscape improvement.
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