| 青海湖北岸不同类型退耕还草地群落物种多样性和生物量特征研究 |
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| 引用本文： | 刘玉,马玉寿,李世雄,郑伟,杨时海. 青海湖北岸不同类型退耕还草地群落物种多样性和生物量特征研究[J]. 西北农业学报, 2014, 23(1): 48-52 |
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| 作者姓名： | 刘玉 马玉寿 李世雄 郑伟 杨时海 |
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| 作者单位： | （1.青海省畜牧兽医科学院,西宁 810003;2.三江源区高寒草地生态省部共建教育部重点实验室,西宁 810003;3.青海大学,西宁 810016） |
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| 基金项目： | 国家科技支撑计划课题“高原天然草地保护恢复及合理利用技术集成于试验示范”（2007BAC30B04 03）。 |
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| 摘 要： | 对青海湖北岸3种不同类型退耕还草地植物群落物种多样性、生物量和草地质量指数特征变化进行分析。结果表明,退耕还草地种草2a后播入种(青牧一号老芒麦、垂穗披碱草、无芒雀麦)在群落中均占据绝对优势地位;群落植物地上生物量明显提高,优良牧草产量显著增加(P0.05);各退耕还草地与对照(CK)样地比群落相似性低,草地质量指数显著提高。
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| 关 键 词： | 青海湖北岸 退耕还草地 物种多样性 生物量 |
Species Diversity and Biomass Characteristics of Different Grain for green Grasslands in the Northern Region of Qinghai Lake |
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| LIU Yu,MA Yushou,LI Shixiong,ZHENG Wei and YANG Shihai. Species Diversity and Biomass Characteristics of Different Grain for green Grasslands in the Northern Region of Qinghai Lake[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2014, 23(1): 48-52 |
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| Authors: | LIU Yu MA Yushou LI Shixiong ZHENG Wei YANG Shihai |
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| Abstract: | Plant species diversity, biomass characteristics, and index of grass quality of three different grain for green grasslands in the northern region of Qinghai Lake on the Tibetan Plateau were investigated after two years of grain for green grassland. Results showed that: (1) planted species Elymus sibiricu, Elymus nutan, Bromus inermi were dominant in the communities; (2) excellent forage biomass was significant (P<0.05) increased and thus enhanced community aboveground biomass; (3) the similarity of each converted grassland community and CK was lower; and (4) the index of grassland quality was increased dramatically. |
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| Keywords: | The northern region of Qinghai Lake Grain for green grassland Species diversity Biomass |
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