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土壤磷素形态及其分级方法研究进展
引用本文:张林,吴宁,吴彦,罗鹏,刘琳,陈文年,胡红宇.土壤磷素形态及其分级方法研究进展[J].应用生态学报,2009,20(7):1775-1782.
作者姓名:张林  吴宁  吴彦  罗鹏  刘琳  陈文年  胡红宇
作者单位:1. 中国科学院成都生物研究所生态恢复重点实验室,成都,610041
2. 四川农业大学资源环境学院,四川雅安,625014
基金项目:国家自然科学基金,国家科技支撑计划,中国科学院知识创新工程西部行动计划项目
摘    要:磷作为植物必需的大量营养元素,在维持农业的可持续发展和生态系统的平衡中起着重要作用.采用适宜的土壤磷素分级方法研究土壤中磷素形态、转化及其有效性,对揭示土壤磷素供应和流失状况都具有重要意义.本文结合国内外已有研究,从土壤无机磷和有机磷的形态划分、分级方法和传统土壤磷素分级方法的局限性等方面进行了总结.Hedley磷素分级方法在分级过程中兼顾了无机磷和有机磷两种磷素形态,有利于了解土壤磷素的生物有效性和动态变化,是目前应用较广的磷素分级方法.本文介绍了Hedley磷素方法的分级流程和应用范围,并对其改进方法Tiessen磷素分级法进行了详细论述.

关 键 词:磷素形态  分级方法  Hedley磷素分级法  Tiessen磷素分级法
收稿时间:2008-11-17

Soil phosphorus form and fractionation scheme: A review
ZHANG Lin,WU Ning,WU Yan,LUO Peng,LIU Lin,CHEN Wen-nian,HU Hong-yu.Soil phosphorus form and fractionation scheme: A review[J].Chinese Journal of Applied Ecology,2009,20(7):1775-1782.
Authors:ZHANG Lin  WU Ning  WU Yan  LUO Peng  LIU Lin  CHEN Wen-nian  HU Hong-yu
Institution:Key Laboratory of Ecological Restoration, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;College of Resources and Environment, Sichuan Agricultural University, Ya’an 625014, Sichuan, China
Abstract:As an essential element of plant nutrition, phosphorus plays an import ant role in the agricultural sustainable development and ecosystem balance. Adop ting appropriate soil phosphorus fractionation scheme to study the forms, transf ormation, and availability of soil phosphorous is critical for understanding soi l phosphorus supply and its losses. This paper reviewed the recent researches about the forms of soil inorganic and organic phosphorous, as w ell as their fractionation schemes and limitations. Hedley method, a widely used soil phosphorous fractionation scheme, gives attention to both organic and inor ganic phosphorous forms, being available to understand the bioavailability and d ynamics of soil phosphorus. The process of Hedley method and its application sco pe were described. A detailed discussion of its modification, the Tiessen method , was also presented.
Keywords:phosphorus form  fraction scheme  Hedley method  Tiessen method  
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