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文摘
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对金露梅灌丛地下生物量形成规律的研究结果表明：金露梅灌丛地下生物具有“V”字形季节变化规律和明显的垂直分布特征；金露梅灌丛死根和活根的生物量变化有显著的季节变化规律；金露梅灌丛草场地下生物量的周转值为35.72%，地下净生产量为1 206.4 g/m~2；金露梅灌丛地下生物量与地上生物量、总生物量的比值接近于生长季始末时最大；金露梅灌丛地下生物量与月平均气温和降水量有负相关关系。 |
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其他语种文摘
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The formation patterns of below-ground biomass was analyzed in Potentilla fruticosa dominated shrub. The results showed that the below-ground biomass of Potentilla fruticosa shrub obeyed the pattern of "V" type and had obvious vertical distributive characteristics. The biomass of dead and living root showed obvious seasonal changing laws. The turnover value of below-ground was 35.72% and the below-ground net production was 1 206.4 g/m~2. The proportion of below-ground biomass and above-ground biomass was higher at the beginning and ending growing season as well as with total biomass. The negative correlation was showed between below-ground biomass and average air temperature or precipitation monthly. |
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来源
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草业学报
,2002,11(2):59-65 【核心库】
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关键词
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金露梅灌丛
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地下生物量
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形成规律
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地址
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中国科学院西北高原生物研究所, 西宁, 810001
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1004-5759 |
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学科
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植物学 |
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基金
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中国科学院海北高寒草甸生态系统实验站基金
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中国生态系统研究网络长期监测项目
;
国家973计划
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文献收藏号
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CSCD:959920
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