摘要
概述国内外有关不同土地利用方式下土壤压实的研究成果,压实主要造成土壤容重和机械阻力增加,土壤通气性、持水性和渗透性降低,土壤内化学元素吸收受到限制,进而影响植物正常生长。同时压实还降低土壤微生物活性和土壤表面CO2释放速率,并分析减轻土壤压实的方法和土壤压实研究需要解决的问题。
The research results of soil compaction with different land use patterns at home and abroad were mainly reviewed. The compaction could lead to the increase of soil bulk density and mechanical resistance, the decrease of soil aeration, water holding capacity and permeability, as well as the restriction of chemical element absorption in soil, which affected the normal growth of plants. Meanwhile, the compaction also reduced soil microbial activity and the release rate of CO2 on soil surface. In addition, the method of reducing soil compaction and the problem existing in soil compaction research were discussed.
出处
《森林工程》
2010年第1期7-11,共5页
Forest Engineering
基金
黑龙江省重点自然科学基金项目(ZJY04-09)
国家十一五科技支撑计划课题(2006BAD03A08-05)
关键词
土壤压实
理化特性
土壤呼吸
soil compaction
physicochemical properties
soil respiration
