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| 蚯蚓对As污染土壤酶活性及其P养分的影响 | |
| 引用本文： | 白建峰,林先贵,尹睿,陈雪民,李江元,张华勇,王俊华.蚯蚓对As污染土壤酶活性及其P养分的影响[J].土壤通报,2007,38(5):978-983. |
| 作者姓名： | 白建峰 林先贵 尹睿 陈雪民 李江元 张华勇 王俊华 |
| 作者单位： | 1. 中国科学院,南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏,南京,210008;中国科学院,南京土壤研究所-香港浸会大学土壤与环境联合开放实验室,江苏,南京,210008;中国科学院,研究生院,北京,100049 2. 中国科学院,南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏,南京,210008;中国科学院,南京土壤研究所-香港浸会大学土壤与环境联合开放实验室,江苏,南京,210008 3. 江苏省吴江市农林局,江苏,吴江,215200 |
| 基金项目： | 中国科学院知识创新团队国际合作伙伴计划;江苏省社会发展基金 |
| 摘 要： | 从湖南石门县的As矿区附近采集不同程度As污染的农田土壤,分别设置添加秸秆、接种蚯蚓等处理,研究蚯蚓对As污染土壤酶活性及其P养分供给的影响。结果发现,高浓度As土壤的脱氢酶活性显著低于中、低浓度As土壤,而酸性磷酸酶活性及有效P含量则与之相反。蚯蚓+20g秸秆处理在50d时脱氢酶活性最高,而酸性磷酸酶活性则是秸秆处理在100d时最高,且接种蚯蚓和施用秸秆有利于土壤P素的释放。结果表明在施用秸秆条件下接种蚯蚓有利于改善As污染土壤的养分供给,从而改善根际营养。 |
| 关 键 词： | As污染农田土壤 土壤酶 有效P 秸秆 蚯蚓 |
| 文章编号： | 0564-3945(2007)05-0978-06 |
| 修稿时间： | 2006年8月8日 |
Effects of Earthworm on Enzyme Activities of Soil Polluted by Different Concentrations of Arsenic |
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| BAI Jian-feng,LIN Xian-gui,YIN Rui,CHEN Xue-min,LI Jiang-yuan,ZHANG Hua-yong,WANG Jun-hua.Effects of Earthworm on Enzyme Activities of Soil Polluted by Different Concentrations of Arsenic[J].Chinese Journal of Soil Science,2007,38(5):978-983. | |
| Authors: | BAI Jian-feng LIN Xian-gui YIN Rui CHEN Xue-min LI Jiang-yuan ZHANG Hua-yong WANG Jun-hua |
| Abstract: | A pot culture experiment was carried out to investigate the effects of earthworm (Eisenia foetida ) on the activities of dehydrogenase and phosphatase and bioavailable P in arable soil sampled near the largest Arsenic mine of Asia in Shimen County,Hunan Province. Dehydrogenase activities,phosphatase activities and bioavailable P were all impacted by inoculable earthworm,corn residues and the concentration of Arsenic in soil. Dehydrogenase activity was much lower in high As level than that in low and medium As level. However,the trend of phosphatase activities and bioavailable P,compared with dehydrogenase activities,were reversed. Dehydrogenase activities in the soil inoculated earthworm and put on rice straw was the highest when samples were collected at the 50th day,and phosphatase activities were the highest at the 100th day. Inoculating earthworm and putting on rice straw in As-polluted soil were in favor of P released from the soil. The results showed that inoculating earthworm in As-polluted soil could ameliorate nutrient supply in the rhizosphere and might be beneficial to the plant,phytoremedying As-polluted soil. |
| Keywords: | Arable soil polluted by Arsenic Soil enzyme Bioavailable phosphorus Rice straw Earthworm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |