摘要
以山杏天然林为研究对象,对不同坡位山杏林木生长和土壤理化性质进行比较分析,了解不同立地条件下山杏天然林木生长和林地土壤肥力的差异,为山杏人工林经营提供依据。结果表明:山杏天然林林下土壤成碱性,pH随坡位和土层深度的增加而呈上升趋势;随着坡位的降低,林木生长状况和土壤理化性质逐渐好转,呈正相关趋势,同一坡位表层土壤肥力状况优于深层土壤。因此,在山杏人工林立地选择时,若能充分考虑坡位的影响,优化经营方式,将有助于改善立地土壤环境,提高山杏人工林的生长质量状况。
Using Armeniaca sibirica natural forests as the research object,the growth and soil physical and chemical properties in different slope position were compared and analyzed,and the difference of growth and soil fertility of Armeniaca sibirica natural forests in different site conditions were understood,which provided the basis for the management of Armeniaca sibirica natural forests.The results showed that the Armeniaca sibirica natural forest soil were generally alkalinitic,pH value increased as the soil depth and slope position increased,with the decrease of slope,tress growth and soil physical and chemical properties had been improved gradually showing a positive trend,the surface soil fertility was better than deep soil in the same slope position.As a result,at the time of building Armeniaca sibirica plantations in the future,if we can fully consider the impact of slope position and optimize the management mode,it will help to improve the standing soil environment and improve the growth quality of apricot plantation.
作者
姚颖
刘建明
刘忠玲
温爱亭
吕跃东
YAO Ying;LIU Jianming;LIU Zhongling;WEN Aiting;LV Yuedong(Heilongjiang Forest Research Institute,Harbin150081)
出处
《森林工程》
2019年第6期36-41,54,共7页
Forest Engineering
基金
国家科技支撑计划项目(2015BAD07B03)
关键词
山杏
天然林
理化性质
坡位
土层深度
Armeniaca sibirica
natural forest
physical and chemical properties
slope position
soil depth
