施用自然有机物料土壤中Pb的动态变化  

Effect of Application of Natural Organic Material on Dynamic of Pb in Soil

作　　者：冯娜娜[1] 吴景贵[1] 胡娟[1] 杨子仪[1] 陈闯[1] 赵欣宇[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《东北农业科学》2016年第1期64-67,共4页Journal of Northeast Agricultural Sciences

基　　金：国家科技支撑计划项目(2013BAC09B01;2012BAD14B05);吉林省科技厅重点科技成果转化项目(20130303035NY)

摘　　要：采用培养试验将树叶、稻糠、秸秆三种自然有机物料与化肥配施,研究对土壤中Pb含量及其形态变化的影响。结果表明:施入自然有机物料使土壤中Pb总量和各形态Pb含量增加,以稻糠增幅最大;增加了土壤中酸可提取态Pb含量和可还原态Pb含量,降低了可氧化态Pb含量和残渣态Pb含量,使土壤中Pb由生物有效性低的形态向生物有效性高的形态转化,以稻糠处理转化最大;土壤有机质和p H值表现出逐年下降趋势,各形态Pb含量与有机质的相关性较与p H值的相关性显著。In the culture experiment, tree leaves, rice chaff, crop straw were mixed the fertilizer and applied into soil, their effect on content and form of Pb was studied. The results showed that application of natural organic materials made the total content of Pb and the content of all forms of Pb in soil increased. The increase in rice chaff treatment was the largest. The content of acid extractable of Pb and reducible Pb increased, but oxidation states of Pb and the residual state of Pb reduced. So Pb in soil changed from low bioavailability fraction to high bioavailability fraction. The changes in rice chaff treatment was the largest. The content of organic matter and pH decreased gradually. The relationship between the content of various forms of Pb and organic matter in all treatments was significantly more than the relationship with pH.

关 键 词：自然有机物料 土壤PB 动态变化 

分 类 号：S158[农业科学—土壤学]