近代森林－环境问题与森林养分循环研究进展（综述）

Development of Research on Forest Nutrient Cycling Related to Recent Issue of Forest-environment

在对主要生命元素全球循环的研究中发现，森林不只是环境污染的蓄积库，同时也是一个重要的污染发生源。而且两者的相对强度正接近平衡。环境污染是否造成了森林生长的削弱和衰亡，也基本形成了两种相对的观点，即“有害说”和“有益说”的理论。此外，由于特殊的地缘格局，各国环境政策关系微妙。

Based on research on the globe cycling of main nutrient elements,it was suggested thatforests is not only a huge sink for environmental pollutants,but also a large emissive source by it-self of some pollutants.Moreover ,the relative intensities of both are getting close to balance.Based on abundant research on whethere the environniental pollution is assiciated to forest declineor dieback, two controversial viewpoints, namely“harmfulness, hypothesis”and “beneficalnesshypothesis”have formed.In addition ,multilateral environmental policies have reflected subtle re-lations among some countries for the particularly geopolitic pattern. All these research fields men-tioned at last can not be of independance to exploration of nutrient cycling,becaause of its basisof providing scientific proof for each issue.