摘要
采用野外调查与室内分析测定的方法,研究了苏北地区林粮间作地土壤理化性质。结果表明:杨树与粮食间作和泡桐与粮食间作地的土壤理化性质均优于对照地土壤理化性质;土壤各理化性质间密切相关;土壤全氮、全磷、有机质含量等都随土壤深度的增加而减少。实施林粮间作对改善土壤的理化性质及增加土壤地力是有效的。
Based on the field investigation and soil analysis,some soil physical and chemical properties in different agroforesty systems in northern area of Jiangsu province were studied.The main research results are as follows:The soil physical and chemical properties both in poplarcrop and paulowniacrop systems are much better than that in contract plot.In tree crop intercropping systems,the poplarcrop system is better than that of paulowniacrop system.There is a close relationship among soil fertilities.The content of soil nitrogen, phosphor and organic matter are decreasing with the increasing of soil depth.
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第6期27-30,共4页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
江苏省农业三项工程部分内容
