银川平原草甸湿地土壤盐分组成特征研究  

Study on Salinity Characteristics of Soil of Meadow Wetland in Yinchuan Plain

作　　者：吴春燕[1] 夏贵菊 何彤慧[1] 于骥[1] 赵永全[2] 

机构地区：[1]宁夏大学西北退化生态系统恢复与重建教育部重点实验室西北土地退化与生态恢复省部共建国家重点实验室培育基地,宁夏银川750021 [2]湖北医药学院,湖北十堰442000

出　　处：《北方园艺》2016年第13期168-172,共5页Northern Horticulture

基　　金：国家自然科学基金资助项目(41361095)

摘　　要：干旱地区草甸湿地是容易发生盐分积累的区域,以银川平原草甸湿地为研究对象,采用野外调查和室内试验相结合的方法,旨在找出银川平原草甸湿地盐分的主要组成成分,为湿地恢复提供科学指导。结果表明:土壤全盐、pH与大部分盐分离子都呈显著或极显著正相关或负相关,Na^+、Cl^-与大部分离子之间都呈显著或极显著相关关系。所有盐分离子的主成分分析表明,在0~30cm土壤Na^+、Cl^-、HCO_3^-+CO_3^(2-)是研究区的主要盐分离子,在30~100cm土壤Na^+、Ca_2^+、Cl^-是研究区盐分累积的主要盐分离子。因此,Na^+、Cl^-是银川平原草甸湿地的主要盐分离子,应着重对这2种离子进行消减。Meadow wetland was prone to salt accumulation in arid area.In this study,the method of field experiment and laboratory experiment were used to find out the main component of salt in the meadow wetland of Yinchuan plain,and to provide scientific guidance for the restoration of wetland.The results showed that soil salinity factors indicated that soil salinity,pH and most of salt ions appeared to be significant or very significant positive or negative correlation.There was a significant or very significant correlation between Na＋,Cl-and most of the ions.All the main components analysis of salt ions showed that,in 0-30 cm,Na＋,Cl-,HCO_3-＋CO_3（2-）were main salt ions in the study area;in 30-100 cm,Na＋,Ca（2＋）,Cl-were main the salt ions of salt accumulation in the study area.Therefore,Na＋and Cl-were the main salt ions in the Yinchuan plain,which should focus on the two kinds of ions.

关 键 词：土壤盐分 组成特征 银川平原 草甸湿地 

分 类 号：S155.553[农业科学—土壤学]