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当前位置: 首页 > 文章 > 天然草场土壤、牧草中重金属含量对放牧家畜的影响 湖北农业科学 2012,51 (20) 4579-4582
Position: Home > Articles > The Effect of Several Heavy Metal Elements in Soil and Grass on Livestock in Alpine Grassland Hubei Agricultural Sciences 2012,51 (20) 4579-4582

天然草场土壤、牧草中重金属含量对放牧家畜的影响

作  者：
张静;李希来;裴海昆
单  位：
青海大学农牧学院草业科学系
关键词：
放牧家畜;天然草场;土壤重金属;相关性
摘  要：
对青海省3个主要天然放牧草场中土壤、牧草和家畜中汞、砷、镉、铅重金属的累积与迁移规律进行研究。结果表明,黄南州河南县和海南州共和县土壤中汞含量超过限量值,海北州祁连县土壤中镉含量超过限量值,其他指标均符合标准要求。牦牛肌肉、羊肌肉中铅含量与饲养环境中土壤、牧草中铅含量均无显著相关关系(P>0.05),与饲养环境牧草中砷、汞含量也无显著相关关系(P>0.05),牦牛肌肉中汞、镉含量与饲养环境土壤、牧草中汞、镉的含量具有显著相关关系(P<0.05),羊肌肉中砷含量与饲养环境土壤、牧草中砷的含量具有显著相关关系(P<0.05)。从总迁移系数看,汞的迁移系数最大,其次为砷。汞、砷向羊肌肉中的迁移系数大于牦牛肌肉,镉向牦牛、羊肌肉迁移的系数最小。
译  名：
The Effect of Several Heavy Metal Elements in Soil and Grass on Livestock in Alpine Grassland
作  者：
ZHANG Jing,LI Xi-lai,PEI Hai-kun(Department of Grassland Science,Qinghai Agricultural and Animal Husbandry College,Xining 810003,China)
关键词：
grazing livestock;natural grassland;soil heavy metal;correlation analysis
摘  要：
The content of Hg,As,Pb and Cd and their transferring rule among soil,grass and livestock in three alpine grasslands(Gonghe,Henan and Qilian Conuties) in Qinghai were analyzed.The results showed that the Hg content of soil in Henan and Gonghe county,and the Cd content in Qilian County was above the limit level;while and the other was consistent with the requirement of environmental quality standard for soil.The content of Hg,As,Pb and Cd in grass and musculature of yak and sheep was also consistent with the requirements of the hygienic standards for feed.There was no significant correlationship between the Pb content in the musculature of yak and sheep and in the soil and grass(P>0.05),as well as the Hg and As content in the grass(P>0.05).The Hg and Cd content in the musculature of yak was significantly correlated with those in the soil and grass(P <0.05).The significant correlationship also laid in the As content in the musculature of sheep and in soil and grass(P<0.05).Viewing from the total transferring coefficient of the heavy metal,the highest coefficient was of Hg;the second one was of As.The transferring coefficient of Hg and As into the musculature of sheep was higher than those into the musculature of yak.The lowest transferring coefficient into the musculature of yak and sheep was of Cd.

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