安徽宁国地区岩-土系统元素迁移及其农业地质环境效应
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摘要
通过多条基岩-土壤剖面和区域性土壤地球化学样品的微量元素丰度测试,分析了宁国地区不同基岩类型地球化 学元素在岩石和土壤中分布的基本特点,表明同一地层的岩-土系统在不同地点有基本相同的元素迁移规律,导致土壤中 的微量元素分布特征受控于其下地质单位的空间分布,植物生长必需的微量营养元素Fe、Mn、Cu、Mo、Zn、B6种元素表现 出在南华纪-寒武纪地层中向土壤强烈富集的趋势.岩-土系统元素迁移特点对宁国市天目山区重要名优特产品-山核 桃的生长环境产生重要影响,该区主导性名特优产品———山核桃,应该选择南沱组、兰田组、杨柳岗组、华严寺组、西阳山组 等地层出露的地段种植才能产生好的经济效益.
How the movement of elements in a rock-soil system affects agriculture in a given geological environment is an entirely new study subject in petrology and geochemistry. This paper generalizes the fundamental features of the geochemical distribution of elements in various soil and rock types in the Ningguo region, Anhui Province, by means of the measurement of trace element abundance in bedrock-soil sections. The results show the regular movement patterns of elements in a rock-soil system in this region. Six trace elements Fe, Mn, Cu, Mo, Zn and B, indispensable to plant growth, are abundant in soil. It shows that, in Nanhuan system - Cambrian system, Fe, Mn and Cu are abundant in soil. This clearly suggests that the movement of elements in a rock-soil system significantly affects the growth environment of well-known agricultural, and forest products in Tianmu Mountains of Ningguo region. Walnuts, the leading product in Tianmu Mountains, are suited to the soil in the area of the Nantuo, Lantian, Yangliugang, Huayansi and Xiyangshan formations.
How the movement of elements in a rock-soil system affects agriculture in a given geological environment is an entirely new study subject in petrology and geochemistry. This paper generalizes the fundamental features of the geochemical distribution of elements in various soil and rock types in the Ningguo region, Anhui Province, by means of the measurement of trace element abundance in bedrock-soil sections. The results show the regular movement patterns of elements in a rock-soil system in this region. Six trace elements Fe, Mn, Cu, Mo, Zn and B, indispensable to plant growth, are abundant in soil. It shows that, in Nanhuan system - Cambrian system, Fe, Mn and Cu are abundant in soil. This clearly suggests that the movement of elements in a rock-soil system significantly affects the growth environment of well-known agricultural, and forest products in Tianmu Mountains of Ningguo region. Walnuts, the leading product in Tianmu Mountains, are suited to the soil in the area of the Nantuo, Lantian, Yangliugang, Huayansi and Xiyangshan formations.
引文
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Huang,C.Y.,2000.SoilScience.ChinaAgriculturePress,Beijing,1-2(inChinese).
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Li,X.Y.,2001.Soilchemistry.HigherEducationPress,Bei jing,1-3(inChinese).
Taylor,S.R.,McClennan,S.,1985.Thecontinentalcrust, compositionandevolution.BlackwellScientificPubli cations,54:209-230,372.
Wang,J.H.,Rao,L.L.,1990.Supergenemovementof chemicalelementsineasternplainsofChina.SciencePress,Beijing,3-10(inChinese).
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Xing,G.X.,Zhu,J.G.,2003.Soilmicroelementandrare earthelementchemistry.SciencePress,Beijing,5-9(inChinese).
Zhu,C.,2000.Studyofmountainoussedimentaryenviron mentinthefourthepochineasternChina.NanjingUni versityPress,Nanjing,94-99(inChinese).
董凤祥,王贵禧,2003.美国薄壳山核桃引种及栽培技术.北京:金盾出版社,5:22-23.
黄昌勇,2000.土壤学.北京:中国农业出版社,1-2.
李家熙,吴功建,黄怀曾,等,2000.区域地球化学与农业和健康.北京:人民卫生出版社,32-33.
李学垣,2001.土壤化学.北京:高等教育出版社,1-3.王景华,饶莉丽,1990.华东平原地区化学元素的表生迁移.北京:科学出版社,3-10.
魏复盛,陈静生,吴燕玉,等,1991.中国土壤环境背景值研究.环境科学,12(4):35.
邢光熹,朱建国,2003.土壤微量元素和稀土元素化学.北京:科学出版社,5-9.
中国地质科学院生物环境地球化学中心,2001.地球化学环境———农业、健康.北京:地质出版社,8-9.
朱诚,2000.华东山地第四纪沉积环境研究.南京:南京大学出版社,94-99.
目录