【作者】 李根明； 孙虎； 刘青利； 任彦周； 赵香珍；

【Author】 LI Gen-ming;SUN Hu;LIU Qing-li;REN Yan-zhou;ZHAO Xiang-zhen;College of Environmental and Tourism,Anyang Normal University;Southern Tai-hang Mountains Resources and Environment Research Center,Anyang Normal University;College of Tourism and Environmental Sciences,Shaanxi Normal University;Anyang Infant Normal College;

【机构】 安阳师范学院资源环境与旅游学院； 安阳师范学院南太行资源环境研究中心； 陕西师范大学旅游与环境学院； 安阳幼儿师范高等专科学校；

【摘要】 以寨沟小流域不同年限退耕地为研究对象,并以坡耕地作为对照,分层采集土样,测定土壤物理性质。结果表明:土地利用方式改变后土壤物理性质及有机质含量变化明显,且时间越长,变化越显著,主要表现为土壤容重变小、孔隙度增大、持水能力增强、自然含水率增加、土壤有机质含量增高,更有利于涵养水分和保持水土。更多还原

【Abstract】 Take rehabilitation land that has different recoiling time in Zhaigou drainage area for example, this paper compare it with sloping farm land. Soil samples were collected according to profile layers. Based on the experimental result, soil physical characters are measured. As a result, this paper testifies that soil physical characters and contents of organic matter change obviously after mode of land use changes. Otherwise, the longer recoiling time rehabilitation land has, the more change happens. At the same time, this paper indicates that less volume weight, larger hole degree, stronger power on preserving water, higher natural containing water rate, more content of SOC make contribution to protecting water and soil.更多还原