甘南地区土壤-牧草-牦牛系统部分微量元素的 季节变化和盈缺分析  

Analysis of Seasonal Variations and Surplus and Shortage of Partial Trace Elements in the Soil-Forage-Yak System in Gannan Region

作　　者：付东海 马武 成述儒[3] 马晓明 褚敏[1,2] 姚喜喜 郭宪 阎萍[1,2] 梁春年 Fu Donghai;Ma Wu;Cheng Shuru;Ma Xiaoming;Chu Min;Yao Xixi;Guo Xian;Yan Ping;Liang Chunnian(Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences,Lanzhou 730050,China;Key Laboratory of Yak Breeding Engineering,Lanzhou 730050,China;Gansu Agricultural University,Lanzhou 730050,China)

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所,兰州730050 [2]甘肃省牦牛繁育工程重点实验室,兰州730050 [3]甘肃农业大学,兰州730050

出　　处：《中国草食动物科学》2020年第6期18-23,共6页China Herbivore Science

基　　金：国家重点研发计划子课题(2018YFD0502403);中国农业科学院创新工程项目(CAAS-ASTIP-2014-LIHPS-01);甘肃省草食畜产业技术体系(CAR-008)。

摘　　要：微量元素是动物维持机体活动不可或缺的营养成分之一。为探究甘肃省甘南地区土壤-牧草-牦牛系统中部分微量元素的不同季节变化规律和盈缺状况,试验通过采集甘肃省甘南地区春、夏、秋3个季节中的土壤、牧草和牦牛血液样品,测量并分析系统中微量元素的变化状况。结果表明:春季、夏季、秋季3个季节中,甘南地区土壤、牧草和牦牛血清中的Cu和Se含量均处于缺乏状态。该研究明晰了甘南地区土壤-牧草-牦牛系统微量元素的盈缺现状,为甘南地区牧场管理、草地保护以及畜牧生产力的提高提供了理论依据。Trace elements are one of the indispensable nutrients for animals to maintain body activities.In order to explore the seasonal variations and surplus and shortage of partial trace elements in the soil-grass-yak system in Gannan region,soil,grass and blood samples of yak during different seasons in Gannan region were collected determined and analyzed.Comparing the standards of different elements,the results showed that in the three seasons,the contents of Cu and Se in the soil,pasture and yak serum of Gannan region were in a lacking status.This study clarified the current status of trace element surpluses in the soil-grass-yak system in Gannan region,and provided a theoretical basis for pasture management,grassland protection and livestock productivity improvement in Gannan region.

关 键 词：甘南地区 土壤-牧草-牦牛系统 微量元素 季节变化 盈缺分析 

分 类 号：S812[农业科学—草业科学] S823.85[农业科学—畜牧学]