| 荒漠梭梭林大沙鼠为害及不同生境类型对其巢域选择的影响 |
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| 引用本文： | 张三亮,刘荣堂.荒漠梭梭林大沙鼠为害及不同生境类型对其巢域选择的影响[J].草原与草坪,2008(5):11-14. |
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| 作者姓名： | 张三亮 刘荣堂 |
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| 作者单位： | 1. 甘肃农业大学,草业学院,甘肃,兰州,730070;甘肃省森林病虫害防治检疫站,甘肃,兰州,730050
2. 甘肃农业大学,草业学院,甘肃,兰州,730070 |
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| 摘 要： | 通过在民勤县荒漠林区的调查表明，大沙鼠为害对梭梭林区新梢长有显著的影响，新梢长度大小依次为：健康植株〉20％枝条受害植株〉50％枝条受害植株〉80％枝奢受害植株；大沙鼠的洞群主要分布在固定沙丘和丘间地，流动沙丘、且大沙鼠的洞群数量在不同沙丘类型之间差异显著（P〈0．05）；不同地形大沙鼠的洞群数量差异显著（P〈0．05），说明大沙鼠的洞群主要分布在丘间地，丘顶和背风坡大沙鼠不会选择营巢；民勤荒漠林区灌木丰富度、草本植物丰富度和盖度与大沙鼠洞群数量之间没有直接的相关关系，灌木盖度和大沙鼠洞群数量之间存在显著正相关关系，回归方程为Y=0．5143x-3．7757，R^2=0．8113。
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| 关 键 词： | 梭梭 生境类型 大沙鼠 巢域 选择 |
Damage of Rhombimys opimus to Haloxylon ammodendron and the effect of different habitats on its home range selection |
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| ZHANG San-liang,LIU Rong-tang.Damage of Rhombimys opimus to Haloxylon ammodendron and the effect of different habitats on its home range selection[J].Grassland and Turf,2008(5):11-14. |
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| Authors: | ZHANG San-liang LIU Rong-tang |
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| Institution: | 1.College of Pratacultural Science;Gansu Agricultural University;Lanzhou 730070;China;2.Forest Pest and Disease Control Station of Gansu Province;Lanzhou 730050;China |
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| Abstract: | An investigation on Great Gerbils(Rhombimys opimus) damage and its home range selection in Mingqing was carried out.The result showed that Rhombimys opimus significantly damaged the new shoot of Haloxylon ammodendron.The length of new shoot of Haloxylon ammodendron was normal plant>20% damaged plant>50% damaged plant>80% damaged plant.The home range was mainly distributed on fixed sand dune and between sand dunes.The flowing sand dune and the top of sand dune were not selected as the home range.The shrub ri... |
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| Keywords: | Haloxylon ammodendron habitat type Rhombimys opimus home range selection |
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