| 不同放牧强度对牦牛夏季放牧行为的影响 |
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| 引用本文： | 刘发央,龙瑞军.不同放牧强度对牦牛夏季放牧行为的影响[J].兰州大学学报(自然科学版),2009,45(2). |
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| 作者姓名： | 刘发央 龙瑞军 |
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| 作者单位： | 1. 甘肃农业大学,生命科学技术学院,兰州,730070
2. 兰州大学,青藏高原生态系统管理国际中心,兰州,730000 |
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| 摘 要： | 2005-2006年7,8月份在甘肃天祝永丰滩草原研究了不同放牧强度下牦牛的夏季放牧行为.调查发现:采食和饮水时间随放牧强度加重而延长,反刍和游走时间随放牧强度加重而减少,卧息时间变化不大,这是牦牛应对草场放牧强度变化的基本策略.采食时间与放牧强度呈极显著的正相天关系(R>R0 01),同归方程为Y=O.92x+7.31;反刍持续时间与放牧强度呈极显著的负相关关系(R>Ro.01),同归模型为y=-0.405x+10.31;卧息时间与放牧强度呈极显著的负相关关系(R>R0. 01),同归模型为Y=-0.08x+2.48;饮水时间与放牧强度呈正相关关系,回归模型为Y=0.0925x-0.123;游走和站立时间与放牧强度呈负相关关系,回归模型为Y=-0.53x+4.04.
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| 关 键 词： | 牦牛 放牧行为 放牧强度 采食时问 |
Effect of different grazing intensities on grazing behavior of yak in summer |
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| LIU Fa-yang,LONG Rui-jun.Effect of different grazing intensities on grazing behavior of yak in summer[J].Journal of Lanzhou University(Natural Science),2009,45(2). |
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| Authors: | LIU Fa-yang LONG Rui-jun |
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| Institution: | 1.College of Life Sciences and Technology;Gansu Agricultural University;Lanzhou 730070;China;2.International Centre for Tibetan Plateau Ecosystem Management;Lanzhou University;Lanzhou 730000;China |
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| Abstract: | Grazing behavior of yak under different grazing intensities in summer was investigated in Yongfengtan, Tianzhu Tibet plateau,Gansu Province,in July and August of 2005 to 2006.We found that the intaking time and water-drinking time got longer,ruminating time and strolling time got shorter,and there was little change in the sleeping time with the increase of grazing intensities.This would be the basic strategies responding to the different grazing intensities.The intaking time was significantly positively cor... |
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| Keywords: | yak grazing behavior grazing intensity intaking time |
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