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《Journal of Northwest Forestry College》 2002-02
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Advances on the Interactional Mechanism between Root System and Eco-enviroment

LI Peng 1, ZHAO Zhong 2, LI Zhan bin 1, WANG Nai jiang 2 (1.Research Center of Soil and Water Conservation and Ecological Construction, CAS, Ministry of Education, Yangling, Shaanxi, 712100, China;2. Forestry College, NW Sci Tech Univ. of Agr.  
Effect of environment conditions on root growth, distribution, and morphological, physiological and ecological characters and the amelioration and accommodation effect of vegetation on environment are systematically analysed. It is also illustrated that there may exist favorable micro eco environment as a result of the interaction between plant and environment. And in the seriously eroded areas, the existence of roots in the soil can greatly improve the anti erodibility of the soil, which may be of great importance to the ecological construction and rehabilitation. As root system is an important component in the eco system, it occupies an important position in succession. The rooting depth and total root length of the species at the early successional stage were all larger than that of the species later, which ensures the absorption of water and nutrient from deeper layers for plant growth, and creates better conditions for the apex species growth. In the SVAT (Soil Vegetation Atmosphere Transportation) studies of macro scale and globe, it is agreed that the vegetation root distribution depth is more important as it determines quantity of water and nutrient for vegetation, and will be a hotpot in future root studies.
【Fund】: 中国科学院知识创新重大项目“西部生态环境演变与水土资源可持续利用研究”(KZCX1-10 -0 4)
【CateGory Index】: S718.5
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