混交林种间养分关系研究进展

该文从养分的角度对混交林树种间关系的研究进展加以综合述评 .文献表明 ,不同树种组成的混交林可通过种间相互作用改变林地地上、地下凋落物的组成、数量、性质及其分解模式和养分释放过程 ,提高林地养分总水平、养分有效性和养分利用效率 ;合理配置的混交林树种间可通过养分吸收的时空差异性、养分转移等机制达到种间养分互补、协调的关系 .同时探讨了混交林种间养分关系研究中存在的问题

Advances on the research of interspecific nutrient interaction in mixed forest ecosystems

In this paper the authors make a review on advances on researches of interspecific nutrient interaction of mixed forest ecosystems. Studies show that mutual influence among species of mixed forest ecosystems change the component, quantity, quality of above and below ground litters; their decomposition, nutrient release processes are different from pure forest ecosystems; and also, soil nutrient level, efficiency and utilization ratio in the former ecosystems are higher than the latter. The interspecific nutrient relation among reasonable blended mixed forest ecosystems can come up to be mutually beneficial and harmonious by means of space time nutrient absorbing difference and nutrient transfer between tree species in these ecosystems. Finally, problems in researches on interspecific nutrient interaction among mixed forest ecosystems are probed.