摘要
通过培养试验研究了猪粪和稻草对Cd污染黄泥土生物活性的影响 .结果表明 ,Cd污染土壤的生物活性下降 .施用有机肥料后 ,土壤有效态Cd含量降低 ,降幅约为 4 0 % ;微生物量C、N、P和脱氢酶、过氧化氢酶的活性增高 ,增幅为 30 %～ 10 0 % ,其中微生物量C、N与土壤有效态Cd之间有显著的负相关关系 。
Studies on the effects of pig manure and rice straw on the biological activity of Cd-contaminated permeable paddy soil showed that Cd-contaminated soil had a declined biological activity. After applying organic manure, the content of soil available Cd decreased significantly, being about 40%, and soil microbial C, N and P and soil dehydrogenase and catalase activities increased 30%～100%. There existed a negative correlation between soil available Cd and soil microbial C and N, indicating that microbial C and N could be used as an index of Cd-contaminated soil.
出处
《应用生态学报》
CAS
CSCD
2003年第11期1997-2000,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金重点项目 (3 983 0 2 2 0)
国家科技部 863资助项目(2 0 0 1AA2 460 81)
关键词
猪粪
稻草
镉污染黄泥土
生物活性
Pig manure, Rice straw, Cd-contaminated permeable paddy soil, Biological activity
