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土壤钾素运移的影响因素研究进展
引用本文:占丽平,李小坤,鲁剑巍,王 瑾,廖志文.土壤钾素运移的影响因素研究进展[J].土壤,2012,44(4):548-553.
作者姓名:占丽平  李小坤  鲁剑巍  王 瑾  廖志文
作者单位:华中农业大学资源与环境学院,武汉,430070
基金项目:国家自然科学基金项目(41001178)、华中农业大学新进博士科研启动专项(2009BQ080)和中央高校基本科研业务费专项资金资助
摘    要:钾是植物必需的营养元素,土壤中钾素是作物所需钾素的主要来源。土壤中钾素通过质流、扩散和根系截获的方式到达根表被植物吸收。这些运移方式受一定因素的影响。本文简要综述了土壤钾素运移的影响因素,包括物理因素、化学因素和生物因素,归纳了土壤水分、质地、体积质量、温度、pH值、陪伴离子、钾离子的浓度和植物特性等因素对土壤钾素运移的影响,并展望了未来土壤钾素运移的重点研究方向。

关 键 词:土壤钾素运移  扩散  物理因素  化学因素  生物因素

Research advances on influence factors of soil potassium movement
ZHAN Li-ping,LI Xiao-kun,LU Jian-wei,WANG Jin,LIAO Zhi-wen.Research advances on influence factors of soil potassium movement[J].Soils,2012,44(4):548-553.
Authors:ZHAN Li-ping  LI Xiao-kun  LU Jian-wei  WANG Jin  LIAO Zhi-wen
Institution:College of Resources and Environment, Huazhong Agricultural University
Abstract:Potassium (K) is an essential mineral element for plant. K in soil is the main source for plant growth, and it is taken up by plant through mass flow, diffusion and root interception. The different K transference mode are affected by many factors. In this paper we reviewed the factors which affect the movement of K in soil, including physical, chemical and biological factors, summarized the effects of soil moisture, texture, bulk densities, temperature, pH, accompany ions, K concentration and plant characteristics on the movement of K in soil. Finally, we prospected the focus research on the movement of K in soil.
Keywords:Movement of potassium in soil  Diffusion  Physical factors  Chemical factors  Biological factors
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