| 青藏高原"黑土滩"退化草地植物和土壤对秃斑面积变化的响应 |
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| 引用本文： | 韩立辉,尚占环,任国华,王彦龙,马玉寿,李希来,龙瑞军.青藏高原"黑土滩"退化草地植物和土壤对秃斑面积变化的响应[J].草业学报,2011,20(1):1-6. |
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| 作者姓名： | 韩立辉 尚占环 任国华 王彦龙 马玉寿 李希来 龙瑞军 |
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| 作者单位： | 青海大学农牧学院,青海,西宁810016;兰州大学青藏高原生态系统管理国际中心,兰州大学草地农业科技学院,甘肃,兰州730020;中国科学院青藏高原研究所,北京100085;兰州大学青藏高原生态系统管理国际中心,兰州大学草地农业科技学院,甘肃,兰州730020;青海畜牧兽医科学院草原研究所,青海,西宁810016 |
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| 摘 要： | 在青藏高原典型"黑土滩"区对93个秃斑块及周边的土壤和植被特征以及变化规律进行了调查分析.结果表明,高寒草地草毡层消失后形成的"黑土滩"秃斑在草地中形成一个"负肥力岛",秃斑块内土壤养分低于秃斑周边有草皮层覆盖的草地,其中全氮、铵态氮、有机碳差异显著;同时秃斑内pH显著高于秃斑块外水平.秃斑块是草地养分流失的通道.当秃...
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| 关 键 词： | 青藏高原 黑土滩 秃斑块 植物群落 土壤养分 |
| 收稿时间： | 1900-01-01; |
The response of plants and soil on black soil patch of the Qinghai-Tibetan Plateau to variation of bare-patch areas |
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| HAN Li-hui,SHANG Zhan-huan,REN Guo-hua,WANG Yan-long,MA Yu-shou,LI Xi-lai,LONG Rui-jun.The response of plants and soil on black soil patch of the Qinghai-Tibetan Plateau to variation of bare-patch areas[J].Acta Prataculturae Sinica,2011,20(1):1-6. |
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| Authors: | HAN Li-hui SHANG Zhan-huan REN Guo-hua WANG Yan-long MA Yu-shou LI Xi-lai LONG Rui-jun |
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| Institution: | HAN Li-hui1,SHANG Zhan-huan2,3,REN Guo-hua2,WANG Yan-long4,MA Yu-shou4,LI Xi-lai1,LONG Rui-jun2(1.College of Agriculture and Animal Husbandry,Qinghai University,Xining 810016,China,2.International Center for Tibetan Plateau Ecosystem Management,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,3.Institution of Tibetan Plateau Research,Chinese Academy of Science,Beijing 100085,4.Grassland Institute,Qinghai Academy of Animal and Veterinary Sciences,Xining 8... |
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| Abstract: | Characteristics and variation of soil and vegetation in and surrounding,93 bare patches of a typical black soil patch area of the Qinghai-Tibetan Plateau were investigated.Bare-patches formed negative fertile islands after sod layers breaking off in alpine meadows,i.e.soil nutrients in bare-patches were lower than those in the surroundings.There were obvious differences in total nitrogen,ammonium nitrogen,and organic carbon between the two parts.The pH values of bare patches were higher than those of the su... |
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| Keywords: | Qinghai-Tibetan Plateau black soil patch bare-patch plant community soil nutrients |
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