| 两种来源狗牙根的生长对铜污染土壤酶活性的影响 |
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| 引用本文： | 王友保,蒋田华,安雷,姚婧,黄永杰.两种来源狗牙根的生长对铜污染土壤酶活性的影响[J].草业学报,2008,17(6):40-46. |
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| 作者姓名： | 王友保 蒋田华 安雷 姚婧 黄永杰 |
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| 作者单位： | 安徽师范大学生命科学学院,安徽,芜湖,241000;安徽师范大学生命科学学院,安徽,芜湖,241000;安徽师范大学生命科学学院,安徽,芜湖,241000;安徽师范大学生命科学学院,安徽,芜湖,241000;安徽师范大学生命科学学院,安徽,芜湖,241000 |
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| 基金项目： | 国家自然科学基金
，
安徽省自然科学基金
，
安徽省重点实验室基金
，
安徽省高等学校青年教师科研资助计划
，
安徽师范大学博上基金
|
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| 摘 要： | 研究了２种来源狗牙根的生长对Ｃｕ污染土壤酶活性的影响。结果表明，随着Ｃｕ污染程度的增加，土壤过氧化氢酶、脲酶、蔗糖酶、磷酸酶、多酚氧化酶活性均逐渐减少，与Ｃｕ浓度呈高度负相关。随培养时间的延长，各处理组土壤酶活性均得到不同程度的恢复，但仍然低于对照；种植狗牙根能有效降低Ｃｕ污染对土壤酶活性的抑制作用，各处理组土壤酶活性均极显著增加；其中来源于污染区的狗牙根作用效果更加显著；５种土壤酶的活性均与狗牙根干重呈正相关，并且与狗牙根地下部分干重的相关性大于地上部分。脲酶活性对土壤Ｃｕ污染敏感性高，可以作为土壤Ｃｕ污染的监测指标之一。
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| 关 键 词： | 铜 狗牙根 生长 土壤酶 |
| 收稿时间： | 1900-01-01; |
Effects of growth of Cynodon dactylon from two sources on enzyme activities of soil polluted by copper |
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| WANG You-bao,JIANG Tian-hua,AN Lei,YAO Jing,HUANG Yong-jie.Effects of growth of Cynodon dactylon from two sources on enzyme activities of soil polluted by copper[J].Acta Prataculturae Sinica,2008,17(6):40-46. |
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| Authors: | WANG You-bao JIANG Tian-hua AN Lei YAO Jing HUANG Yong-jie |
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| Abstract: | The effects of growth of Cynodon dactylon from two sources on enzyme activities in soils polluted by copper was studied in pot cultivation experiments.With higher Cu concentrations,the activities of catalase,urease,invertase,phosphatase,and polyphenoloxidase gradually decreased.There was a significant negative correlation between Cu concentration and soil enzyme activities.C.dactylon reduced the inhibition of Cu on the activities of catalase,urease,invertase,phosphatase and polyphenoloxidase from cultivated C.dactylon.Among them,the function of C.dactylon from polluted areas was greater than that from unpolluted areas,and the enzyme activities had a positive correlation to dry weight of C.dactylon.Urease activity may be a monitoring index for Cu polluted soil and one of the appraisal indexes of phytoremediation effects for Cu polluted soil. |
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| Keywords: | copper Cynodon dactylon growth soil enzyme |
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