| 镧对太湖地区水稻土若干水解酶活性的影响 |
| |
| 引用本文： | 褚海燕,朱建国,谢祖彬,曹志洪,曾青,林先贵. 镧对太湖地区水稻土若干水解酶活性的影响[J]. 稀土, 2002, 23(3): 41-43 |
| |
| 作者姓名： | 褚海燕 朱建国 谢祖彬 曹志洪 曾青 林先贵 |
| |
| 作者单位： | 中国科学院南京土壤研究所,土壤圈物质循环开放研究实验室,江苏,南京,210008 |
| |
| 基金项目： | 国家自然科学基金重大资助项目 ( 2 9890 2 82 ) |
| |
| 摘 要： | 通过模拟试验研究了镧对太湖地区水稻土酸性磷酸酶、脲酶及蔗糖酶活性的影响。镧对水稻土酸性磷酸酶活性表现出抑制作用 ,当镧浓度大于 6 0 mg/kg时 ,抑制作用达到显著水平 ,最大抑制率达到 13%;镧对水稻土脲酶活性影响不显著 ;镧对水稻土蔗糖酶活性表现出一定的刺激作用 ,当镧浓度为 30 0 mg/kg时 ,刺激作用达到显著水平 ,最大刺激率为 10 %。
|
| 关 键 词： | 稀土 镧 水稻土 水解酶活性 |
| 文章编号： | 1004-0277(2002)03-0041-03 |
| 修稿时间： | 2001-05-29 |
Effects of Lanthanum on Hydrolytic Enzymes Activities of Paddy Soil in Tai Lake District |
| |
| CHU Hai-yan,ZHU JIAN-guo,XIE Zu-bin,CAO Zhi-hong,ZENG Qing,LIN Xian-gui. Effects of Lanthanum on Hydrolytic Enzymes Activities of Paddy Soil in Tai Lake District[J]. Chinese Rare Earths, 2002, 23(3): 41-43 |
| |
| Authors: | CHU Hai-yan ZHU JIAN-guo XIE Zu-bin CAO Zhi-hong ZENG Qing LIN Xian-gui |
| |
| Abstract: | The effects of Lanthanum (La) on the activities of acid phosphatase, urease and sucrase of paddy soil in Tai Lake district were studied through simulation experiment. La inhibited acid phosphatase activity of paddy soil, and there was a significant inhibition (p<0.05) when La concentration was over 60 mg/kg,and the maximum inhibition rate was 13%. La had no significant effect on urease activity of paddy soil. La stimulated sucrase activity of paddy soil, and there was significant stimulation (p<0.05) at 300 mg/kg, and the maximum stimulation rate was 10%. |
| |
| Keywords: | rare earth element lanthanum paddy soil hydrolytic enzyme activitiy |
| 本文献已被 万方数据 等数据库收录！ |
|
