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甘肃省陇东塬区土壤及农作物中微量元素的分布特征
引用本文:潘峰,赵艳萍,梁俊宁,周立辉,陈丽华,马金珠. 甘肃省陇东塬区土壤及农作物中微量元素的分布特征[J]. 环境科学研究, 2012, 25(3): 290-296
作者姓名:潘峰  赵艳萍  梁俊宁  周立辉  陈丽华  马金珠
作者单位:1.兰州大学西部环境教育部重点实验室;兰州大学大气科学学院
基金项目:长庆油田分公司科技项目(09AK-KF-003)
摘    要:通过测定甘肃省陇东塬区马岭、西峰和华庆油田区土壤以及小麦、苹果、油菜中Cu、Ni、Cd、Pb、Cr、Zn等6种微量金属元素质量分数,研究塬区土壤中微量元素的空间分布特征及其在植物体内的转移、富集能力.结果表明:塬区土壤中w(Zn)明显高于其他5种元素,其平均值达111.64 mg/kg;w(Cd)最小,在1.64~3.38 mg/kg之间;其余4种元素(Cr、Pb、Ni、Cu)质量分数在20~70 mg/kg之间.当地主要农作物对土壤中微量元素的富集系数均小于1,富集能力一般,其中根部的富集能力相对较大,地上部位均较小. 

关 键 词:微量元素   土壤   农作物   富集   陇东塬区

Distribution Characteristics of Several Trace Elements in Soil and Crops in Longdong Tableland Plateau,Gansu Province
PAN Feng,ZHAO Yan-ping,LIANG Jun-ning,ZHOU Li-hui,CHEN Li-hua and MA Jin-zhu. Distribution Characteristics of Several Trace Elements in Soil and Crops in Longdong Tableland Plateau,Gansu Province[J]. Research of Environmental Sciences, 2012, 25(3): 290-296
Authors:PAN Feng  ZHAO Yan-ping  LIANG Jun-ning  ZHOU Li-hui  CHEN Li-hua  MA Jin-zhu
Affiliation:1.Key Laboratory of Western China’s Environmental Systems(Ministry of Education),Lanzhou University,Lanzhou 730000,China ;College of Atmospheric Sciences,Lanzhou University,Lanzhou 730000,China2.Key Laboratory of Western China’s Environmental Systems(Ministry of Education),Lanzhou University,Lanzhou 730000,China3.Shaanxi Provincial Academy of Environmental Science,Xi’an 710061,China4.Institute of Oil-Gas Techniques,Companies of Changqing Oil Field,Xi’an 710018,China
Abstract:The spatial distribution of six trace elements(Cu,Ni,Cd,Pb,Cr and Zn) in soil,and their transfer and enrichment in crops,were studied by investigating their contents in the Maling,Xifeng and Huaqing oilfields in the Longdong tableland plateau and in wheat,apple and rape crops.The results showed that the mean content of Zn in the soil was 111.64 mg/kg,which was the highest among the six elements in the tableland plateau.The content of Cd in the soil was 1.64-3.38 mg/kg,while those of the other four elements were between 20 and 70 mg/kg.The crop enrichment coefficients of all the trace elements were less than 1,which indicated a normal enrichment ability of these crops.Furthermore,the enrichment ability of the roots was higher than that of the plant part above ground.
Keywords:trace elements  soil  crop  enrichment  Longdong plateau
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