由于养分的重要性和贫乏性，营养循环是我们在这门课中会讲到的最重要的生态系统过程之一。
Because of the importance of nutrients and their scarcity, nutrient recycling is one of the most significant eco-system processes that we'll cover in this course.
农用化工产品破坏了原始生态系统赖以生存的营养更新的自然循环。
Agrochemicals had destroyed the natural cycles of nutrient renewal that intact ecosystems use to maintain themselves.
这种循环使海洋生态系统增加了能量，从而使营养物质向四周移动。
The circulation adds energy to the Marine ecosystems and moves nutrients around.
海岛恢复的长期利益包括重建海岛的生物群落，再现海岛生态系统的营养循环，恢复海岛的进化过程。
The long term benefits of island restoration include re_colonization of biological community, re_establishment of ecosystem matter cycle, and revolution of island.
微型生态系统中P分布的变化可揭示罗非鱼促进系统中营养物循环，从而加速其富营养化的主要机制。
The variation of P distribution in the microcosms can reveal the main mechanism of accelerating nutrient cycling in the systems, and thus, enhancing their eutrophication processes by Nile tilapia.
凋落物分解是生态系统碳循环和营养物质循环的关键过程，受多种因素共同影响。
Litter decomposition is an important ecosystem function, and is an indispensable process for carbon and nutrient cycling.
外生菌根真菌与很多植物形成互利共生关系，在营养物质交换和碳循环等方面起着关键性的作用，是森林生态系统的重要组成部分。
Ectomycorrhizal ( EcM) fungi form mutualistic symbioses with many tree species and are regarded as key organisms involved in nutrient and carbon cycling in forest ecosystems .
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;
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;
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