1·The understory vegetation and dead litter play a great role in the nutrient cycling of the ecosystem.
林下植被和死地被物层在系统养分循环中具有重要作用。
2·The relation between water cycling and nutrient cycling was studied from, community level in the oak forest.
本文从群体水平上研究了蒙古栎林生态系统中的水分循环与养分循环的关系。
3·Litter decomposition is an important ecosystem function, and is an indispensable process for carbon and nutrient cycling.
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。
4·As an important integrant of forest ecological system, soil animals are indispensable to its nutrient cycling and energy flowing.
土壤动物是森林生态系统的重要组成成分，在系统养分循环、能量流动中具有不可替代的重要地位。
5·The decomposition of litters is important to the nutrient cycling of the ecosystems and also is the one of the carbon sources of the ecosystems.
土壤凋落物的分解不仅是生态系统养分循环的重要环节，也是生态系统碳释放源之一。
6·Forests and tree cover combat land degradation and desertification by stabilizing soils, reducing water and wind erosion and maintaining nutrient cycling in soils.
通过稳定土壤，减少水蚀和风蚀并维持土壤养分循环，林木覆盖能够防止土地退化和荒漠化。
7·It is well known that earthworm can affect nutrient cycling in terrestrial ecosystems significantly through modifying soil physical, chemical and biological properties.
蚯蚓是陆地生态系统中最为重要的大型土壤动物，它们通过影响土壤物理、化学和生物学性质来影响土壤养分的循环与转化。
8·Forest litters decomposition was an important process of nutrient cycling in forest ecosystems, and played a central role in soil organic matter formation and nutrients release.
凋落物分解是森林生态系统养分循环中的重要过程，对土壤有机质的形成和养分释放有重要意义。
9·Generally, fast breakdown rates of leaf litter in the Xiangxi River indicated that riparian leaf litter played a significant role in the nutrient cycling and benthic communities.
河流中叶片凋落物在春夏季节的快速分解对底栖生物群落和下游养分循环有重要作用。
10·Soil organisms as well as enzyme activities perform important functions in soil, including structure improvement, nutrient cycling, and organic matter decomposition and retention.
土壤生物和酶活性在改善土壤结构、养分循环、有机质分解和保持中起重要作用。