植物根系吸水模型研究进展

植物根系吸水模型是当前生态水文和陆面过程建模领域最为活跃的研究方向,是研究流域水文、生态、环境以及水资源可持续利用等科学问题中最为关键的部分,研究植物根系吸水的物理和生理机制及其影响因素,是建立植物根系吸水模型的基础.本文通过对植物根系吸水模型研究的回顾,讨论了水分和盐分胁迫在根系吸水中的作用、根系吸水的多维模型、根系吸水在陆面过程中的作用等问题,指出植物根系吸水模型发展所面临的问题并展望了未来的发展方向.

Research Advances about Water-uptake Models by Plant Roots

The research about water-uptake models by plant roots is the most active frontier of the model construction in ecological hydrology land-surface process as well as the most crucial part in studying the hydrology,ecology,environment and sustainable water resource utilization in a catchments area,and studying the physical and physiological mechanisms for plant roots to uptake water and their affecting factors is the basis for constructing the water-uptake models by plant roots.While reviewing the studies about the water-uptake models by plant roots,the paper discusses the effects of water and salt stresses,the multi-dimension water-uptake models and the role of root water uptake in land surface processes,and points out the problems that the research about the models of root water uptake is facing,and envisages the future in this research field.