That's because freshwater ecosystems are so closely linked to human activity.
这是因为淡水生态系统和人类活动密切相关。
Such degradation erodes the natural resilience and adaptability of ecosystems.
环境退化破坏生态系统的自然复原力和适应力。
The plants of natural ecosystems are usually well adapted to the edaphic and climatic character of their region.
自然生态系统的植物, 通常十分适应当地的土壤和气候特点。
Add energy to the marine ecosystems
给海洋中的生态系统增加能量
In addition, it is also easy to exploit marine ecosystems.
另外, 它的开采也极易破坏海洋生态系统。
Marine ecosystems have been adversely affected by the overfishing of local stocks.
海洋生态系统因当地鱼种过度捕捞而受到不利影响。
How have we affected the world's terrestrial ecosystems?
我们怎麽影响了世界的地球生态系？
How have we affected the worlds terrestrial ecosystems
我们如何去影响这个世界的地上生态系？
When these ecosystems are disrupted, youth and children are affected.
在这些生态被破坏时，青年和儿童就会遭殃。
The study found that global warming was already affecting the Earth's ecosystems.
研究表明，全球变暖已经影响到了地球的生态系统。
If they disappear, whole ecosystems in Africa disappear.
如果它们消失了，整个非洲的生态系统都会随之消失。
Natural and agricultural ecosystems form a continuum.
自然生态系统和农业生态系统构成一个连续的统一体。
The expansion of agricultural land is a major cause of damage to natural ecosystems.
这种耕地的增长是自然生态系统遭破坏的主要原因。
Agroecosystems are often highly productive.
农业生态系统通常具有很高的生产力。
The industrial ecosystem would function as an analogue of biological ecosystems.
工业生态系统所起的作用类似于一个生物生态系统。
Trust fund for an integrated pilot project on environmental management and protection of the Andean ecosystems.
安第斯生态系统环境管理和保护综合实验项目信托基金。
Antarctic ecosystems.
南极生态系统
That situation has undoubtedly increased the impact on the Antarctic environment and its associated ecosystems.
这种状况无疑增加了对南极环境及其相关生态系统的影响。
Organic aquaculture management shall maintain the health of aquatic ecosystems.
有机水产养殖得管理应能保持水生生态系统得健康。
Also heavy metals in ash and its cement products are not at high risk of exposure and effects on aquatic ecosystems.
灰渣及其水泥制品中的重金属不会对水体造成污染。
Structure and Dynamics of Arthropod Community in Different Intercropped and Managed Jujube Yard Ecosystems
复合生态枣园节肢动物群落结构与动态的研究
Coral reefs and associated ecosystems are invaluable human treasures.
珊瑚礁和相关生态系统是人类的宝贵财富。
The carbon balance of terrestrial ecosystems is particularly sensitive to climatic changes in autumn and spring.
陆地生态系统的碳平衡对秋季和春季气候变化尤其敏感。
There are highly sensitive and delicately balanced ecosystems in the forest.
森林里有高度敏感，灵敏平衡的各种生态系统。
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