林木根系与土壤环境相互作用研究综述

对林木根系与土壤环境因子相互作用的国内外研究成果进行了综述，总结了土壤温，水分，通过性等物理因子，以及土壤矿质养分，CO2浓度等化学因子对根系生长的作用过程。着重介绍了土壤中Al^3 ,O3、盐分及干旱胁迫对根系的作用机理，分析了根系对土壤环境的作用方式和机理，包括根系分泌物的作用及细根在养分循环中的作用。最后提出了根系与土壤因子相互作用研究的几个重要方向，为今后开展根系与林木生长和产量形成相互关系的生理，生态学机理研究提供依据。

Progress on the Interaction Between Tree Roots and Soil Environment

The research results have been summarized on the interaction between tree roots and soil environment.The author analyzed impacts of physical and chemical factors of the soil such as soil temperature,moisture,nutrients and CO 2 on the root growth.Meanwhile,the effects of soil stress factors like Al 3+ ,O 3,salt and drought on the root systems was also investigated.It was discussed on action patterns and mechanisms of roots on the soil micro environment,including the role of root secretive and that of fine roots in nutrient cycling.Finally,several important research topics have been suggested on the interaction between tree roots and soil environment.They could form the basis for the further physiological and ecological studies on the interrelationship between tree roots and its growth and yield formation.