摘要
对羊草草地的轻度放牧、适度放牧、重度放牧、过度放牧和未放牧生境的土壤动物对比研究结果表明，轻度放牧和适度放牧对土壤运动的生存有利。随着放牧强度的增加，土壤动物类群数和个体数均呈递减趋势。土壤动物在土层中的垂直分布，以适度放牧的表聚性为最明显，而过度放牧则相反。
Soil animals in Leymus chinensis grassland with varied grazing pressures were studied.Grazing treatments included light grazing,moderate grazing,heavy grazing,over grazing and no grazing.The results indicated that light and moderate grazings were most suitable for soil animal survival.Number of soil animal groups and individuals decreased as grazing pressure increased.Moderate grazing also had most obvious surfacecollection effects on vertical distribution of soil animals,while over grazing treatment gave the least effects.
出处
《草业学报》
CSCD
1997年第4期71-75,共5页
Acta Prataculturae Sinica
基金
国家自然科学基金
关键词
羊草草地
放牧
土壤动物
Leymus chinensis grassland,grazing pressure,soil animals
