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首页> 外文期刊>Annals of Agricultural Science >Effect of different irrigation water sources on certain heavy metals concentration and accumulation level in different soil types.
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Effect of different irrigation water sources on certain heavy metals concentration and accumulation level in different soil types.

机译：不同灌溉水源对不同土壤类型中某些重金属浓度和累积水平的影响。

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摘要

This study was conducted during 1999/2000 and 2000/01 to determine the influence of different irrigation water sources (sewage water, agricultural drainage water, groundwater and Nile water) on the heavy metal (Cd, Pb, Ni and Co) contents of two soil types (heavy and light soils; silty clay loam and loamy sand, respectively) in a maize and wheat field in Egypt. All of the studied heavy metals were highly accumulated in the heavy soil in both maize and wheat fields. The accumulation percentage ranged from 1.66 to 1.70% in the heavy soil and from 0.59 to 0.61% in the light soil of the maize and wheat fields, respectively. The mean accumulation percentage of almost all the studied heavy metals in soil decreased according to irrigation water sources: sewage water > agricultural drainage water > groundwater > Nile water. The accumulation and concentration of the heavy metals were in the following order: Pb > Ni > Co > Cd. The accumulation percentage of Cd, Pb, Ni and Co was relatively higher in the wheat field than in the maize field. All the studied metals were below the toxic limits for agricultural soil except for the heavy soil irrigated with sewage water, which contained the highest amount of Pb..
机译：这项研究是在1999/2000年和2000/01年进行的，以确定不同灌溉水源（污水，农业排水，地下水和尼罗河水）对两种重金属（镉，铅，镍和钴）含量的影响。埃及玉米和麦田的土壤类型（重土壤和轻土壤;粉质粘土壤土和壤质沙）。在玉米和小麦田中，所有研究的重金属都高度积累在重土壤中。在玉米和麦田中，重土壤中的积累百分比分别为1.66％至1.70％和轻土壤中的0.59％至0.61％。几乎所有研究的重金属在土壤中的平均积累百分比均随着灌溉水源而降低：污水>农业排水>地下水>尼罗河水。重金属的积累和浓度按以下顺序排列：Pb> Ni> Co> Cd。麦田中Cd，Pb，Ni和Co的积累百分比相对高于玉米田。所有研究的金属均低于农业土壤的毒性极限，但污水中灌溉的重土壤中铅含量最高。

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