| 不同施氮水平对克氏针茅草原地上地下生物量分配的影响 |
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| 引用本文： | 樊维,蒙荣,陈全胜.不同施氮水平对克氏针茅草原地上地下生物量分配的影响[J].畜牧与饲料科学,2010,31(2):74-76. |
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| 作者姓名： | 樊维 蒙荣 陈全胜 |
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| 作者单位： | 1. 内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010018
2. 中国科学院植物研究所,北京,100093 |
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| 基金项目： | 国家自然科学基金(30870421) |
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| 摘 要： | 研究了不同施氮水平下克氏针茅草原群落地上地下生物量的分配格局。结果表明,氮素的添加明显改变了克氏针茅群落的地上地下生物量分配。施氮对群落地上生物量的影响较大,同时也使群落减少了对地下生物量的分配,但是不同施氮梯度对地下生物量各层分配的总体影响不大。
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| 关 键 词： | 氮素添加 生物量分配 根冠比 |
Effects of Nitrogen Additions on Ground/Underground Biomass Allocation of Stipa krylovii Community |
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| FAN Wei,MENG Rong,CHEN Quan-sheng.Effects of Nitrogen Additions on Ground/Underground Biomass Allocation of Stipa krylovii Community[J].Animal Husbandry and Feed Science,2010,31(2):74-76. |
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| Authors: | FAN Wei MENG Rong CHEN Quan-sheng |
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| Institution: | 1.College of Ecology and Environment/a>;Inner Mongolia Agricultural University/a>;Hohhot 010018/a>;China/a>;2.Plant Institute of Chinese Acadamy of Science/a>;Beijing 100093/a>;China |
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| Abstract: | Under the different nitrogen additions,biomass allocation for Stipa krylovii community ground and underground was investigated.The result showed that the nitrogen additions obviously can improve biomass allocation for Stipa krylovii community ground and underground,especially to ground biomass,meanwhile the community belowground biomass allocation was reduced,but different levels of underground biomass allocation were little affected by nitrogen gradients. |
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| Keywords: | nitrogen additions biomass allocation root-top ratio |
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