欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (14): 303-307.

所属专题： 农业生态； 农业地理

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

干扰对毕棚沟生态旅游区土壤物理性质的影响

李梅 杨万勤 肖 艳 吴福忠   

  • 收稿日期:2010-01-28 修回日期:2010-03-07 出版日期:2010-07-20 发布日期:2010-07-20
  • 基金资助:
    季节性冻融对亚高山森林土壤有机层生物和生化特性的影响

Effects of disturbance on soil physical characteristics in Bipengou ecotourism area

  • Received:2010-01-28 Revised:2010-03-07 Online:2010-07-20 Published:2010-07-20

PDF (PC)

981

摘要： 通过对四川毕棚沟生态旅游区的游径、景区公路沿线和火烧迹地等3种干扰类型的土壤物理性质进行典型抽样调查及分析，样地土壤剖面特征表现为： 3类干扰均导致样地土壤含水率呈现不同程度的下降，且表层土壤含水量远高于中下层；表层土壤较为疏松，板结程度小于中下层，踩踏更易导致表层土壤的板结；表层土壤孔隙度大于中下层，踩踏会严重降低土壤表层孔隙度，使土壤逐渐板结；土壤中下层石砾含量明显高于上层。

关键词: 小黑麦, 小黑麦, 氮用量, 密度, 产量, 饲用品质

Abstract: Soil physical characteristics were investigated in three sampled sites with different disturbance (tourism road, highroad and burning) in Bipengou ecotorism area, Sichuan. All of the three disturbances decreased soil water content, although soil water content was higher in soil surface layer compared with the deeper layers. Soil surface layer was looser and less hardening than the deeper soil layers. Trample could reduce soil porosity, and induce soil harden in surface layer. Soil porosity was also higher in soil surface layer than that in deeper layers, but soil gravel content was higher in the deeper soil layers.