有机物料对黄壤性质及外源铜有效性的影响  

Effects of Organic Matters on the Properties and External Copper Validity of Yellow Soil

作　　者：陆晓辉[1] 黎成厚[2] 涂成龙[3] 

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550001 [2]贵州大学生命科学学院,贵州贵阳550001 [3]中国科学院地球化学研究所环境地球化学国家重点实验室,贵州贵阳550002

出　　处：《安徽农业科学》2009年第6期2613-2616,共4页Journal of Anhui Agricultural Sciences

基　　金：贵州师范大学青年教师基金(校科青2005-1-19);中国科学院地球化学研究所前沿领域项目

摘　　要：[目的]探讨有机物料对黄壤主要理化性质及外源铜有效性的影响。[方法]采用动态培养法研究4种有机物料对黄壤主要理化性质及外源铜有效性的影响。[结果]猪粪和玉米秸秆处理使黄壤pH值升高,但随着培养时间的延长这种影响减弱。泥炭和风化煤处理对土壤pH值影响不大。各有机物料的加入均使土壤活性铁和络合铁含量显著增高,且玉米秸秆和猪粪处理对土壤活性铁含量的影响更为突出;各有机物料的加入对活性铝和络合铝的影响不显著,但风化煤处理与泥炭和猪粪处理间的活性铝含量变化存在显著差异。有机物料的加入降低了土壤中外源铜的有效性,并随时间的增长降低得更明显,且泥炭和风化煤的影响强于猪粪和玉米秸秆。[结论]该试验为有机物料对土壤铜含量影响机制的研究作出一定补充。[ Objective ] The aim was to discuss the effects of organic matters on the main physical and chemical properties and external copper validity of yellow soil. [ Method] The effects of 4 organic matters on the main physical and chemical properties and external copper validity of yellow soil were studied by dynamic culture method. [ Result] The pH value of yellow soil was increased in the treatments with pig manure and corn straw, but their effects was weakened along with the prolonging of culture time. The treatments with peat and weathering coal had little effect on the pH value of soil. Adding every organic matter all could increase the contents of activated iron and chelation iron in soil significantly and the effects of treatments with corn straw and pig manure on the content of activated iron in soil were more prominent. Adding organic matters had no significant effect on the activated aluminum and chelation aluminum, but there was significant difference on the content change of activated aluminum between the treatments with weathering coal and peat and the treatment with pig manure. Adding organic matters decreased the validity of external copper in soil and the decrement was more obvious along with the increasing of culture time. Then the effects of peat and weathering coal were stronger than that of pig manure and corn straw. [ Conclusion] The experiment was the complemetarity for studying the affecting mechanism of organic matter on soil copper.

关 键 词：有机物料 黄壤 土壤性质 铜有效性 

分 类 号：S156.6[农业科学—土壤学]