| 草原火烧后植物的养分损失 |
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| 引用本文： | 李晓波 周道玮. 草原火烧后植物的养分损失[J]. 东北师大学报(自然科学版), 1999, 0(4): 96-99 |
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| 作者姓名： | 李晓波 周道玮 |
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| 作者单位： | 东北师范大学国家草地生态工程实验室!吉林长春，130024，东北师范大学国家草地生态工程实验室!吉林长春，130024，东北师范大学国家草地生态工程实验室!吉林长春，130024 |
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| 基金项目： | 农业部“九五”重点科技项目 |
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| 摘 要： | 草原植物火烧后剩下７．５％，即损失了９２．５％的地上现存量。不同元素的火听信经差异显著，碳元素损失量大，其次是氮元素，而磷元素的损失相对较小，金属元素中损失最大的钾，轻金属元素与重金属元素相经 失要大得多，多年生植物的火员失率低于一年生植物。
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| 关 键 词： | 火烧 草原 植物 养分损失 测定 评价 |
Nutrient loss of plants following grassland burning |
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| LI Xiao-bo, ZHOU Dao-wei, SUN Gang. Nutrient loss of plants following grassland burning[J]. Journal of Northeast Normal University (Natural Science Edition), 1999, 0(4): 96-99 |
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| Authors: | LI Xiao-bo ZHOU Dao-wei SUN Gang |
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| Abstract: | Following burning, 92. 5 % of aboveground biomass of grassland plant lost, the other 7. 5% formed ash. Remarkable differences existed in burning loss rate between various elements. Carbon had the biggest loss rate(97. 53 % ), then nitrogen(94. 19 % ), phosphorus had the relatively smaller loss rate(28. 42% ). In metal elements, potassium had the biggest loss (23. 83 % ). The loss of light metal was much more than that of heavy metal. Perennial plants had less loss of elements than annual plants. |
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| Keywords: | burning grassland plant nutrient loss |
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