施用不同预处理猪粪对菜园土壤pH、胡敏酸含量及Cu、Zn活性的影响  

Effects of different swine manures on soil pH, humic acid content, and Cu and Zn activities

作　　者：余天红 黎华寿[1,2] 贺鸿志[1,2] 陈桂葵[1,2] 

机构地区：[1]华南农业大学农学院,广州510642 [2]华南农业大学农业部华南热带农业环境重点实验室,广州510642

出　　处：《农业环境科学学报》2016年第4期785-791,共7页Journal of Agro-Environment Science

基　　金：国家高新技术(863)项目(2013AA102402);国家自然科学基金项目(41271469)

摘　　要：通过为期30 d的室内模拟试验,研究了风干新鲜猪粪(FM1)、风干堆肥猪粪(FM2)、干式发酵床废弃垫料猪粪(FM3)3种不同预处理方式的高铜、高锌猪粪施用对菜园土壤p H、胡敏酸(HA)含量和Cu、Zn含量及其活性动态变化的影响。结果发现,不同预处理猪粪的施入使土壤p H和HA、全Cu、全Zn含量均显著提高。第1、10、20、30 d的取样测定表明,随着时间的推移,HA含量逐渐降低,水溶态Cu、Zn含量显著降低,而HA结合态的Cu、Zn含量则显著增加,其中FM2处理下HA-Cu、HA-Zn含量的增加最为显著。第30 d时,3种处理的HA-Cu含量占Cu总量的比例分别比第1 d增加了12.67%、21.23%、7.73%,HA-Zn含量占Zn总量的比例分别比第10 d增加了9.68%、21.90%、9.74%,但HA-Zn含量占Zn总量的比例低于第1 d,说明FM2处理对Cu和Zn的活性下降影响最大,Cu易与HA结合,HA对Cu的固定能力强于Zn。In the present study, three different swine manures containing excessive Cu and Zn, including air-dry fresh swine manure（FM1）,air-dry swine manure compost（FM2）, and bio-bed swine manure（FM3）, were selected to investigate their effects on soil p H, humic acid（HA）content, total Cu and Zn, and Cu and Zn activities in vegetable soil in laboratory incubation for 30 days. Soil p H, HA content and total Cu and Zn content increased significantly after additions of three different manures, compared to the control. However, HA and water soluble Cu and Zn content decreased, but HA-Cu, HA-Zn content increased over time, with the most significant increases in HA-Cu and HA-Zn found in FM2-amendment. Compared to day 1, FM1, FM2, and FM3 treatments respectively increased percentages of HA-Cu by12.67%, 21.23%, and 7.73% on day 30, enhanced HA-Zn percentages by 9.68%, 21.90%, and 9.74% on day 10. However, HA-Zn in three treatments were lower on day 30 than on the day 1. These results indicate that FM2 is most effective in reducing Cu and Zn activities.

关 键 词：猪粪 菜园土壤 胡敏酸 重金属 活性 

分 类 号：X713[环境科学与工程—环境工程]