| 火生态因子对草原的效应及有计划用火的研究 |
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| 引用本文： | 刘钟龄,王炜,李政海.火生态因子对草原的效应及有计划用火的研究[J].干旱区资源与环境,1993(2). |
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| 作者姓名： | 刘钟龄 王炜 李政海 |
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| 作者单位： | 内蒙古大学，内蒙古大学，内蒙古大学 呼和浩特，010021，呼和浩特，010021，呼和浩特，010021 |
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| 基金项目： | 国家自然科学基金(38970176) |
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| 摘 要： | 火烧可以提高禾草类的生物量25—30%,可以快速地(当年)大幅度提高羊草种群的生物量达100%以上。火烧提高羊草的抽穗率,促进草群更新复壮。火烧可以有效地抑制针茅种群的增长,并改变群落中的种群分布格局,促进羊草种群形成均匀分布格局,扩大羊草种群在群落中的生态位。火烧对草原的总生产力不发生负效应,一次火烧的正效应可持续2—3年。基于以上的结果,我们认为锡林郭勒草原区中,东部含有羊草的草原群落,可在春季四月下旬进行火烧,将会取得良好的效果。
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| 关 键 词： | 火生态因子 草原 羊草+大针茅草原 生物量 |
A STUDY ON THE ECOLOGIC EFFECTS OF FIRE ON GRASSLAND AND FIRE UTILIZATION |
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| Liu Zhongling,Wang Wei,Li Zhenghai Inner Mongolia University.A STUDY ON THE ECOLOGIC EFFECTS OF FIRE ON GRASSLAND AND FIRE UTILIZATION[J].Journal of Arid Land Resources and Environment,1993(2). |
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| Authors: | Liu Zhongling Wang Wei Li Zhenghai Inner Mongolia University |
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| Institution: | Liu Zhongling;Wang Wei;Li Zhenghai Inner Mongolia University |
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| Abstract: | The present paper results from 3 year's observations and experimentsin Xilinguole Prairie, representing the ecologic effects of fire on grassland.Fire can increase the biomass of gramineous grasses by 25-30%, by morethan 100% for Aneurolepidium Chinese. It can improve the earing and rej-uvenation for A. chinese. Burning effectively depresses the growth of stipapopulation and alters the distribution pattern of the populations in comm-unity when A. chinese population is promoted to well-distributed and tomore niches in community. The effects of fire on grassland is not negative,its positive effects for one time burning is able to maintain 2- 3 years. Based on the above-mentioned, we think the burning on the middleand eastern Xilinguole Prairie with A. chinese population at the end ofApril will obtain satisfactory results. |
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| Keywords: | Fire Grassland A chinese + Stipa spp Community Biomass |
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