| 青南牧区草地载畜量对放牧家畜繁活率的影响 |
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| 引用本文： | 雷风.青南牧区草地载畜量对放牧家畜繁活率的影响[J].青海草业,2000(2). |
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| 作者姓名： | 雷风 |
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| 作者单位： | 青海大学农牧学院!青海西宁810003 |
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| 摘 要： | 采用相关分析方法，研究了青南牧区草地载畜量对放牧家畜繁活率的影响，结果表明：草地载畜量年动态可归属徘徊、下降、上升、升降和降升降型。载畜量属徘徊和上升型草地，放牧家畜繁活率变异系数在15％以下；载畜量属下降、升降和降升降型的草地，放牧家畜繁活率变异系数在15.01％～32％之间。
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| 关 键 词： | 青南牧区 草地载畜量 繁活率 |
LIVESTOCK DENSITY EFFECT ON REPRODUCE VITAL LIVESTOCK RATE IN QINGNANPASTURE |
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| LEI Feng.LIVESTOCK DENSITY EFFECT ON REPRODUCE VITAL LIVESTOCK RATE IN QINGNANPASTURE[J].Qinghai Prataculture,2000(2). |
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| Authors: | LEI Feng |
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| Abstract: | From relevant analysis,livestock density effect on reproduce vital livestock rate have been researched in Qingnan pasture. The result shows that annual dynamics of live stock density belongs to be hovering, down, up up -down and down -up -down grass land type. Aberrance modulus of reproduce vital livestock is under15%. Aberrance modulus of reproduce vital livestock is between 15%-32%when livestock belongs to down, up down and down-up -down grassland type. |
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| Keywords: | Qingnan pasture Livestock density Reproduce vital livestock rate |
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