| 安徽主要水稻土中重金属形态分布与土壤酶活性研究 |
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| 引用本文： | 杨红飞,严密,王友保,刘登义.安徽主要水稻土中重金属形态分布与土壤酶活性研究[J].土壤,2007,39(5):753-759. |
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| 作者姓名： | 杨红飞 严密 王友保 刘登义 |
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| 作者单位： | 1. 安徽师范大学生命科学学院,重要生物资源保护与利用安徽省重点实验室,安徽芜湖,241000;安徽中医药高等专科学校药学系,安徽芜湖,241000
2. 安徽师范大学生命科学学院,重要生物资源保护与利用安徽省重点实验室,安徽芜湖,241000 |
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| 基金项目： | 国家自然科学基金;安徽省教育厅自然科学基金;安徽省重点实验室基金 |
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| 摘 要： | 通过野外调查和实验分析,对安徽几类不同地貌下的水稻土中重金属Cu、Zn、Pb的化学形态特征及其与4种土壤酶活性间的关系进行了研究.结果表明:3种不同地区水稻土中,残留态和有机态Cu、Zn、Pb含量在总量中所占比例最高.平原和丘陵地区水稻土中有机结合态Cu、Zn、Pb明显高于山区;而山区水稻土中Fe-Mn氧化物结合态Cu、Zn、Pb相对含量高于平原和丘陵地区.在水稻土中,碳酸盐结合态Cu、Zn对过氧化氢酶活性的抑制作用最大,交换态Pb对脲酶活性的抑制作用最大.反映水稻土Cu、Zn污染用碳酸盐结合态Cu、Zn和过氧化氢酶活性指标,而反映Pb污染用交换态Pb和脲酶活性指标是可行的.
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| 关 键 词： | 水稻土 重金属 形态 土壤酶 |
Activities of Soil Enzymes Related to Forms and Distribution of Heavy Metals in Paddy Soil in Anhui Province |
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| YANG Hong-fei,YAN Mi,WANG You-bao and LIU Deng-yi.Activities of Soil Enzymes Related to Forms and Distribution of Heavy Metals in Paddy Soil in Anhui Province[J].Soils,2007,39(5):753-759. |
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| Authors: | YANG Hong-fei YAN Mi WANG You-bao and LIU Deng-yi |
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| Institution: | College of Life Science, Anhui Normal University, Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu, Anhui 241000, China;Department of Pharmacy, Anhui College of Chinese Traditional Medicine, Wuhu, Anhui 241000, China,College of Life Science, Anhui Normal University, Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu, Anhui 241000, China,College of Life Science, Anhui Normal University, Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu, Anhui 241000, China and College of Life Science, Anhui Normal University, Provincial Key Laboratory of Conservation and Exploitation of Biological Resources in Anhui, Wuhu, Anhui 241000, China |
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| Abstract: | Based on the field investigation and laboratory analyses, relationships were studied of activities of four soil enzymes (calatase, invertase, urease, phosphatase) with forms, contents, and distribution of Cu, Zn and Pb in paddy soils of five regions different in landform in Anhui Province. Results showed that the contents of Cu, Zn and Pb in residual and organic forms occupied the biggest proportion in the total in all these paddy soils. The contents of organic Cu, Zn and Pb were obviously higher in the plain and hill regions than in the mountain region, whereas the relative contents of Fe-Mn oxide combined Cu, Zn and Pb were the other way round. In paddy soils, carbonate combined Cu and Zn inhibited the activity of calatase the most significantly, while exchangeable Pb did the activity of urease the most. It is, therefore, feasible to use carbonate combined Cu, Zn and calatase activity as biochemical indicators of Cu and Zn pollution, and exchangeable Pb and urease activity as indicators of Pb pollution of soils. |
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| Keywords: | Paddy soil Heavy metal Forms Soil enzyme |
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