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为了分析牧草与土壤中微量元素的盈亏状况,试验对可可西里国家自然保护区冷季(4月份和9月份)两种类型天然草地(紫花针茅草地型和高山嵩草草地型)牧草和土壤中微量元素铁、锰、锌、铜、钼、硒的含量进行了采样分析。结果表明:与一般植物相比,冷季两类天然草地型牧草中微量元素硒、钼含量极低,锌含量略低于正常范围的下限,铜含量处于正常范围内,而铁、锰含量却极高;以世界和我国土壤资料为标准,冷季两类天然草地型土壤中铜、锰、铁、锌、硒含量均低于世界和我国平均水平,而钼含量相对更低。
In order to analyze the profit and loss status of trace elements in pasture and soil, two types of natural grassland (Alder grassland and Alpine Kobresia meadow grassland) in pasture and soil of Kekexili National Nature Reserve in cold season (April and September) Trace elements iron, manganese, zinc, copper, molybdenum, selenium content were sampled and analyzed. The results showed that the contents of trace elements selenium and molybdenum in two natural grassland herbage in cold season were extremely low, the content of zinc was slightly lower than the lower limit of normal range, the content of copper was in the normal range, while the content of iron and manganese The content of copper, manganese, iron, zinc and selenium in two types of natural grassland soil in the cold season were lower than the world average and China, while the molybdenum content was relatively lower.