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当前位置: 首页 > 文章 > 高寒草甸草地水、土、草中氮硫含量冷暖季节的变化 草业科学 2001,18 (4) 39-42+45
Position: Home > Articles > The contents of sulphur and nitrogen in water, soil and forage of alpine meadow during warm and cold season Pratacultural Science 2001,18 (4) 39-42+45

高寒草甸草地水、土、草中氮硫含量冷暖季节的变化

作  者：
罗海玲;黄有德;张尤嘉;张英俊;颜生林;肖西山;李成魁;王玲英;王芳霞
单  位：
甘肃农业大学草业工程系;青海省海北州牧科所;中国农科院兰州畜牧与兽药研究所;青海省海北州牧科?;甘肃农业大学动物医学系;甘肃农业大学动物生产工程系
关键词：
硫;氮;水;土壤;牧草;温度;降水量;积温
摘  要：
根据青海高原特殊的气候分布特征 ,把高寒草甸草地绵羊放牧地划分为冷季和暖季。通过测定冷暖季绵羊放牧地水、土壤、牧草中氮和硫含量的结果表明 :水、土壤、牧草中氮和硫的含量暖季 >冷季 (P<0 .0 5 ) ,其中地表水冷暖季含硫量分别为 3.7mg/ kg、5 .1mg/ kg,水中没有检测到氮 ;牧草中硫含量冷暖季分别为 2 95 2 mg/ kg、32 6 2 mg/ kg,差异显著 (P<0 .0 5 ) ;牧草中氮含量冷暖季分别为 0 .6 2 %、1.36 % ,差异显著 (P<0 .0 5 ) ;土壤氮含量冷暖季分别为0 .2 2 %、0 .2 85 % ,差异显著 (P<0 .0 5 ) ;硫含量冷暖季分别为 0 .2 4 %、0 .37%。
译  名：
The contents of sulphur and nitrogen in water, soil and forage of alpine meadow during warm and cold season
作  者：
LUO Hai-ling1, HUANG You-de2, ZHANG You-jia2, ZHANG Ying-jun3, YAN Sheng-lin 4, XIAO Xi-shan 5, LI Cheng-kui 4, WANG Ling-ying 6, WA NG Fang-xia 1 (1.Department of Animal Science, 2. Department of Animal Veterinary, 3. Departme nt of Paratacultu
关键词：
nitrogen; sulphur; water; soil; forage; cold-season; warm-sea son
摘  要：
Based on the climate of Qinghai Plateau, the sheep grazing g ra ssland was divided into cold-season and warm-season area. Sulphur and nitrogen content of the forage, water and soil in cold-season and warm-season area wer e determined respectively. The results showed that sulphur content of the forage and soil in cold-season area were significantly lower than those in warm-seas on area ( p <0.05), the nitrogen content of forage and soil in cold-season ar ea were significantly lower than those in warm-season area ( p <0.05), the su lphur content of the water in cold-season area was significantly lower than tha t in warm-season area ( p <0.05), respectively. However, no any nitrogen was found out in the water.

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