本文研究了江西红壤地区以种植业为主种养结合的农户生态系统的物质循环情况。
This paper deals with the issue of material cycling in the farm household ecosystem in Jiangxi Province.
根据生态系统的物质循环、能量流动和信息传递三大基本功能，分析了网络学习生态系统的功能。
According to an ecosystem'sessential function of substance circulation, energy exchanges and information transfer, the paper analyzes the function of E-Learning ecosystem.
土壤动物是生态系统中特殊的组成部分，在生态系统的物质循环和能量转化过程中起着重要的作用。
Soil animals are special composition in ecosystem that play an important role in the substance circulation and energy transform.
土壤动物作为城市生态系统中特殊的组成部分，在生态系统的物质循环和能量转换中起着重要的作用。
Soil animals are special community in ecosystem which play an important role in the substance circulation and energy transform.
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;
因此，生态系统以生物及其活动作为媒介，涉及能量和物质的循环、转化和积累。
Ecosystems thus involve the circulation, transformation, and accumulation of energy and matter through the medium of living things and their activities.
沼气发酵系统是复合农业生态系统中物质循环和能量转化的枢纽。
Biogas system is the pivot in material recycling and energy transformation of a complex agro-ecosystem.
水生植物腐烂分解作为湖泊生态系统物质循环以及能量流动的关键环节，是维持湖泊生态系统功能的主要过程之一。
As a key aspect of material cycle and energy flow of lake ecosystem, decomposition of lake aquatic plants is one of the main process of maintaining the lake ecosystem functions.
与自然生态系统一样，这是一种相互作用和相互依存的关系，通过能量、物质和信息的反复循环和流动，构成一个有机的整体。
Just as natural ecosystem, this is an interaction and interdependent relationship, forming a complete unit through circulation and flow of energy substance and information.
土壤动物是陆地生态系统的重要组成部分，对系统内物质的循环、能量的流动、转化以及土壤结构的形成和改良具有重要作用。
The soil animal is a major component of the terrestrial ecosystem, and plays an important role in material recycling, energy conversion, and soil structure forming and improving.
为了分析大气降水的化学物质输入及其降水淋溶对云南哀牢山森林生态系统生物物质循环产生的影响。
The influences of chemical substance import of rainfall and rain dripping on organism substance circulation of forest ecosystem in Ailao Mountain of Yunnan Province were analyzed.
土壤酶是一类稳定的蛋白质，参与了土壤中的生物化学反应，对土壤生态系统中物质的循环转化有重要的作用。
Soil enzymes are stable proteins that catalyze biochemical reactions and play important roles in circulation and conversion of materials in soil.
冠层淋溶是森林调节降水的功能之一，是森林生态系统物质循环的重要渠道。
The leach of crown layer is one of the functions of forest in regulating rainfall and also an important. Way of material circulation in forest ecosystem.
城市生态系统是人为改变了结构、改造了物质循环和部分改变了能量转化的、长期受人类活动影响的、以人为中心的陆生生态系统。
Urban ecosystem is the continental ecosystem centering round mankind, with its structure changed, material cycle and part of energy conversion forms reformed.
生态型排水系统是指遵循自然生态系统和工业生态系统的原则、符合物质闭环流动循环的经济模式。
Ecological drainage system is referred to following the principles of natural and industrial ecologic system and cycling economic pattern with which substances cycle with closed loop.
对沿海小型底栖生物在海洋生态系统能流和物质循环中的作用研究。
Studies on the role of coastal microbenthos in energy flow and circulation of materials in marine 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.
凋落物分解是生态系统物质循环和能量流动的重要环节，而土壤生物是凋落物分解的主要完成者。
Litter decomposition is a key process of nutrient cycle and energy flow in ecosystems, while soil microorganism and soil fauna are the main executants of litter decomposition.
作为生态系统重要组成部分的土壤微生物，参与土壤中复杂有机物质的分解和再合成，促进C、N、S、P等的循环。
As an important component of the ecosystem of the soil microbes, involved in the complex of soil organic matter decomposition and re-synthesis, the promotion of c, n, s, p, etc. cycle.
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 .
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 .
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