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Study on the Adaptation Mechanism of Epiphytes

LIU Hai-gang et al(Dinghushan Arboretum,South China Botanical Garden,The Chinese Academy of Sciences,Zhaoqing,Guangdong 526070)  
In this paper the summarization about the following aspects of the litter of the forest was mainly unfold: firstly,the important impaction of the litter exerts to the material cycling and power flow;secondly,the factors influencing the decomposition of the litter and finally,the positive and passive effect on the renewal of the plant and the succession of the community.The litter plays an important role in the forestry ecosystem.Its decomposition makes the effective utilized nutrient element released to the environment and participated in the biogeochemical cycle again.Consequently,the nutrient will be never run out for the utilization of the plant.It maintains the survival and the development of the population,the community and even the ecosystem and the result is the litter covering the field.So the litter will impact the microhabitat of the surface of the soil,because the microhabitat is the origination of the forestry ecosystem,the litter will indirectly influence the forestry ecosystem.The former studies focused on the positive effects of the litter,however the passive effect to the renewal of the forest was ignored.Nevertheless,the passive effects indeed existed.Moreover,these effects will determine the success of the renewal of the forest and the development of ecosystem to balance,harmony,persistence and health.
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