| 喀斯特山区不同农作方式下土壤质量变化对浅层地下水质量的影响 |
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| 引用本文： | 廖婧琳,苏跃,李航,刘方,冯泽蔚.喀斯特山区不同农作方式下土壤质量变化对浅层地下水质量的影响[J].农业环境保护,2010(12):2351-2356. |
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| 作者姓名： | 廖婧琳 苏跃 李航 刘方 冯泽蔚 |
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| 作者单位： | [1]贵州财经学院旅游管理学院,贵阳550004 [2]贵州省农业厅,贵阳550001 [3]西南大学资源环境学院,重庆400716 [4]贵州大学环境与资源研究所,贵阳550003 |
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| 基金项目： | 国家重点基础研究项目（2006CB403200）; 贵州省省长专项资金项目（[2009）63号]; 贵州省高层次人才特助项目（TZJF-2007-10）; 贵州省高等学校人文社会科学研究基地基金资助（200506） |
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| 摘 要： | 选择贵州中部喀斯特山区普定县猫洞小流域,对长期受不同农作行为影响的区域（低复种旱作区、高复种旱作区、高复种复合农作区）土壤和浅层地下水进行采样和分析。结果表明,不同农作区浅层地下水化学组分明显不同,从低复种指数的旱作区、高复种指数的旱作区到高复种指数的复合农作区,浅层地下水中的NO3^-、NH4^＋、PO4^3-、高锰酸钾指数和SO2^4-的含量依次增大,呈显著上升趋势,在高复种指数农作区浅层地下水中氮磷含量更高;在浅层地下水中,NO3^-含量受土壤有机质、腐植酸、全氮和碱解氮的影响最大,PO4^3-含量受土壤全磷、碱解氮、CEC的直接影响大;Cl^-对浅层地下水影响不明显。不同农作方式对地下水的NO3^-、NH4^＋、高锰酸钾指数的贡献存在差异,可见喀斯特特殊的双重水文结构使水环境质量易受土壤质量等环境因素影响,特别是浅层地下水更易受到污染。
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| 关 键 词： | 喀斯特 小流域 农户生产行为 浅层地下水 水质 |
Effects of Farming Behaviors on Quality of Shallow Groundwater in Small Karst Basin |
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| LIAO Jing-lin,SU Yue,LI Hang,LIU Fang,FENG Ze-wei.Effects of Farming Behaviors on Quality of Shallow Groundwater in Small Karst Basin[J].Agro-Environmental Protection,2010(12):2351-2356. |
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| Authors: | LIAO Jing-lin SU Yue LI Hang LIU Fang FENG Ze-wei |
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| Institution: | 1.College of Tourism Management ,Guizhou College of Finance and Economics,Guiyang 550004,China; 2.Agriculture Government Department of Guizhou Province,Guiyang 550001,China; 3.Environment and Resource College of Southwest University,Chongqing 400716,China; 4.Environment and Resource Institute of Guizhou University,Guiyang 550003,China) |
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| Abstract: | Shallow groundwater and soil were analyzed by samples collected from three type of agricultural areas in small karst basin. Results showed that the chemical composition of shallow groundwater was distinctly varied in different farming regions. The permanganate index and the content of SO4^2-、 NO3^-、NH4^＋、PO4^3- in shallow groundwater increased by the order of dry farming areas of lower index with planting crops,complex agriculture areas with higher index planting crops. The content of nitrogen and phosphorus was higher in higher complex index planting crops farming areas. The content of NO3^- in shallow grounderwater was obviously influenced by organic matter,total nitrogen,available nitrogen; The content of PO4^3- in shallow grounderwater was mainly influenced by total phosphorus,available nitrogen and CEC; The tested 13 water chemistry components were hardly influenced by Cl^-in shallow groundwater. The different content of NO3^-,NH4^＋ and permanganate index in shallow grounderwater resulted from different agricultural practices. The special double hydrographic structures in Karst made the aquatic environment quality were easily influenced by some environmental factors such as land quality,especially the shallow groundwater was more likely prone to be polluted. |
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| Keywords: | karst small basin farming behaviors shallow groundwater water quality |
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