| 草原火对克氏针茅＋扁穗冰草——冷蒿型草地植被的影响 |
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| 引用本文： | 裴成芳.草原火对克氏针茅＋扁穗冰草——冷蒿型草地植被的影响[J].草业科学,1997,14(5):1-3. |
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| 作者姓名： | 裴成芳 |
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| 作者单位： | 甘肃省天祝藏族自治县草原工作站 |
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| 摘 要： | ３ａ观测结果表明，草原火刺激牧草返青，使牧草在火后第１个生长期内提前６ｄ返青，但第２、３个生长季无差异；改变了草场植被结构，禾本科牧草盖度，产量下降，杂草的盖度、密度、产量提高，草场植被总盖度和总产量提高。
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| 关 键 词： | 草原火 经济类群 盖度 产量 |
EFFECT OF FIRE ON GRASSLAND VEGETATION OF STIPA KRYLOVII+AGROPYRON CRISTATUM-ARTEMISIA FRIGIDA TYPE |
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| Pei Chengfang.EFFECT OF FIRE ON GRASSLAND VEGETATION OF STIPA KRYLOVII+AGROPYRON CRISTATUM-ARTEMISIA FRIGIDA TYPE[J].Pratacultural Science,1997,14(5):1-3. |
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| Authors: | Pei Chengfang |
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| Abstract: | Fire stimulated herbages reviving and made it be earlier 6 days in the first growth season, but it had no difference in the second and third growth season; it made the grassland vegetation structure change, the coverage and yield of grass herbages decreased, but the coverage, density and yield of weeds increased, the total coverage and yield of grassland vegetation increased. |
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| Keywords: | Grassland fire economic species coverage yield |
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