| 五氯酚在长期定位施肥土壤中的残留动态 |
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| 引用本文： | 王诗生,卞永荣,王 芳,杨兴伦,李忠佩,蒋 新.五氯酚在长期定位施肥土壤中的残留动态[J].土壤,2009,41(3):442-447. |
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| 作者姓名： | 王诗生 卞永荣 王 芳 杨兴伦 李忠佩 蒋 新 |
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| 作者单位： | 1. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008;安徽工业大学建筑工程学院,安徽马鞍山,243002
2. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，中国科学院国际合作伙伴计划项目，中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 研究好氧和厌氧条件下五氯酚 (PCP) 在长期不施肥 (CK),施无机肥尿素 (N),施有机肥 (OM)和无机有机肥配施 (N+OM) 4 种处理土壤中的残留动态.结果表明,无论在好氧或厌氧条件下,PCP 在土壤中的消解均遵循一级动力学方程.在好氧条件下,PCP 在 CK、N、OM 和 N+OM 4 种处理土壤中半衰期分别为 26.9、27.7、21.5、20.6 天,在厌氧条件下,PCP 的半衰期分别为 30.8、32.2、27.1、25.9 天.表明无论在好氧或厌氧条件下,长期单施有机肥或无机有机肥配施显著加速 PCP 在土壤中的消解,原因可能是长期单施有机肥或无机有机肥配施能显著提高土壤有机质含量和微生物活性,加速 PCP 在土壤中的消解.好氧条件下 PCP 的消解速率显著高于厌氧条件.
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| 关 键 词： | 长期施肥 五氯酚 土壤 残留 |
Dissipation Dynamics of Pentachlorophenol in Red Paddy Soils Under Long-Term Located Fertilization Conditions |
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| WANG Shi-sheng,BIAN Yong-rong,WANG Fang,YANG Xing-lun,LI Zhong-pei,JIANG Xin.Dissipation Dynamics of Pentachlorophenol in Red Paddy Soils Under Long-Term Located Fertilization Conditions[J].Soils,2009,41(3):442-447. |
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| Authors: | WANG Shi-sheng BIAN Yong-rong WANG Fang YANG Xing-lun LI Zhong-pei JIANG Xin |
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| Institution: | State Key Laboratory of Soil and Sustainable Agriculture (Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China |
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| Abstract: | Dissipation of pentachlorophenol (PCP) in red paddy soils under aerobic and anaerobic conditions were investigated under four long-term fertilization treatments as follows: (1) no fertilizer (the control, CK), (2) application of urea (N), (3) application of organic fertilizer (OM), and (4) N+OM. The results showed that the dissipation of PCP followed one-order kinetic equation under aerobic or anoxic conditions, and the half-lives of dissipation under aerobic condition in soils were 26.9, 27.7, 21.5 and 20.6 days for CK, N, OM and N+OM respectively. The half-lives of dissipation under anaerobic condition were 30.8, 32.2, 27.1 and 25.9 days respectively. The results suggested that long-term application of organic fertilizer significantly accelerated the dissipation of PCP in soils under aerobic or anoxic conditions due to the significantly higher organic matter content and microbial activity, and dissipation rate under aerobic condition was higher than that under anaerobic condition. |
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| Keywords: | Long-term fertilization Pentachlorophenol Paddy soil Residue |
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