| 草原火烧后土壤微生物的变化 |
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| 引用本文： | 周道玮 李月胜. 草原火烧后土壤微生物的变化[J]. 东北师大学报(自然科学版), 1999, 0(1): 118-124 |
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| 作者姓名： | 周道玮 李月胜 |
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| 作者单位： | [1]东北师范大学国家草地生态工程实验室 [2]内蒙古扎兰屯林业学校 |
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| 基金项目： | 农业部“八五”重点科技项目 |
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| 摘 要： | 研究了不同时间不同频次的草原火烧对土壤微生物的影响。火烧主要影响土壤表层的微生物数量和生物量。土壤微生物数量和生物量随着生长季由春到秋的推进而升高。与春烧地相比，秋烧地更有益于土壤微生物微量的增加。火烧后不久，火烧地土壤微生物数量和生物量低于未烧地；经过一定时间的恢复（尤其在火烧次年），火烧地微生物数量和生物量逐渐升高并超过未烧地。
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| 关 键 词： | 草原 火烧 土壤微生物 生物量 |
Changes in Soil Microorganism Following Grassland Burning |
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| Zhou Daowei Yue Xiuquan Sun Gang Li Yuesheng. Changes in Soil Microorganism Following Grassland Burning[J]. Journal of Northeast Normal University (Natural Science Edition), 1999, 0(1): 118-124 |
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| Authors: | Zhou Daowei Yue Xiuquan Sun Gang Li Yuesheng |
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| Affiliation: | Zhou Daowei 1 Yue Xiuquan 1 Sun Gang 1 Li Yuesheng 2 |
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| Abstract: | Effects of grassland burning in various time and frequencies on soil microorganism were studied. Burning mainly influenced the number and biomass of microorganism in surface of soil profile. With the progress of growing season from spring to autumn, the number and biomass of soil microorganism went up. Compared with burning in spring, burning in autumn was more beneficial to the increase of soil microorganism number. Shortly after burning, the number and biomass of soil microorganism in burned site were lower than unburned site; through restoration of a certain period, the number and biomass of soil microorganism in burned site increased and exceeded unburned site, especially in the next year of burning. |
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| Keywords: | grassland burning soil microorganism number biomass Hulunbeier |
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