草业学报2017，Vol.26Issue(7)：55-61,7.DOI:10.11686/cyxb2016343
川西北高寒沙地不同大小高山柳对土壤氮素的影响
Effect of Salix cupularis shrubs on soil nitrogen in the alpine sandy land of Northwest Sichuan
摘要
Abstract
In this study,we evaluated the effect of Salix cupularis shrubs on the spatial heterogeneity of soil nitrogen,soil water content,and soil pH in the alpine sandy land of Northwest Sichuan,China.The soil water content was higher inside shrub canopies than outside.However,the soil pH was higher outside of shrub canopies than inside.Soil total nitrogen,available nitrogen,ammonium nitrogen,and nitrate nitrogen contents were significantly higher inside the shrub canopies than outside (P＜0.05).Soil nitrite nitrogen was higher outside of shrub canopies than inside.These results indicate that the presence and distribution of S.cupularis shrubs can affect the nutrient patterns in soil.关键词
川西北/高山柳/灌丛/氮素Key words
Northwest Sichuan/Salix cupularis/shrub/nitrogen引用本文复制引用
舒向阳,胡玉福,何佳,王琴,贾安都,佘淑凤,王倩..川西北高寒沙地不同大小高山柳对土壤氮素的影响[J].草业学报,2017,26(7):55-61,7.基金项目
国家科技支撑计划“川西北藏区高寒沙化土地类型划分及土壤施肥管理技术研究”项目(2015BAC05B01)和四川省科技计划“川西北高寒草地沙化防治新模式的研究与示范”项目(2014SZ0159)资助. （2015BAC05B01）
