摘要
本文采用１４Ｃ标记示踪法研究我国北方潮土中有机物质的分解速率及其影响因素。潮土中有机物质的分解，除受气候条件影响外，还受土壤ＣａＣＯ３含量、水分及盐碱含量等因素的影响，并讨论了潮土有机质积累及提高潮土有机质含量的途径。
A microplot experiments using nonlabelled and 14C-labelled plant materials were carriedout in Fengqiu (warm temperature region)and Wuxi(subtroplc region)to study the effectsof climatic conditions, composition and property or plant material and soil as well as theform of land used on the decomposition of plant materials.It seems obvlous that in additionto climatic conditions, composition of plant materials,content of soil CaCO3,Na2CO3 andsome other factors suck as water regime,play an important role in tbe decomposition rate ofplant materials.The contribution of plant materials for maintaining soil organic matter con-tent is discussed.
出处
《核农学报》
CAS
CSCD
1995年第2期95-101,共7页
Journal of Nuclear Agricultural Sciences
基金
国家自然科学基金
关键词
有机物质
腐殖质积累
分解
潮土
C-labelled organic material, decomposition rate
