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中国农学通报 ›› 2005, Vol. 21 ›› Issue (11): 399-399.

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黄土高原丘陵沟壑区放牧林草地团聚体水稳性的研究

范春梅,廖超英,孙长忠,许喜明,刘恒柏   

  • 出版日期:2005-11-05 发布日期:2005-11-05

Study on Soil Water Stable Aggregate of Grassland and Forest Flood During Grazing in Hilly and Gully Regions on the Loess Plateau

Fan Chunmei, Liao Chaoying, Sun Changzhong, Xu Ximing, Liu Hengbai   

  • Online:2005-11-05 Published:2005-11-05

摘要: 以黄土高原丘陵沟壑区——山西偏关县为例,对不同放牧植被类型、不同放牧强度、不同放牧畜种条件下表层土(0~10cm)的团聚体水稳性进行分析研究。结果表明,放牧草地较之放牧林地的土壤结构及结构稳定性要好;重度放牧下土壤团聚体含量最小,其结构稳定性亦最差;从畜牧羊种选择来看,绵羊相对于山羊来说对土壤结构破坏较小,土壤中团聚体含量较多、团聚体水稳性也较好。

Abstract: Based on hilly-gully regions on the Loess Plateau —Pianguan, Shaanxi province, to analyze surface (0~10cm) soil water stable aggregate content of grazing grassland and forest floor of different types of vegetation ,different types of livestock and differe