文献类型：期刊文献

中文题名：绿洲春季不同来源灌溉水土壤盐分离子分布特征

英文题名：Distribution Characteristics of Soil Salt Ions of Different Sources of Irrigation Water in Oasis Spring

作者：黄雅茹[1,2] 马迎宾[1,2] 郝玉光[1,2] 董礼隆[1,2] 肖彩虹[1,2] 赵英铭[1,2] 董雪[1,2] 刘禹廷[1,2]

第一作者：黄雅茹

机构：[1]中国林业科学研究院沙漠林业实验中心;[2]国家林业局内蒙古磴口荒漠生态系统定位研究站

年份：2018

卷号：31

期号：9

起止页码：1856-1863

中文期刊名：西南农业学报

外文期刊名：Southwest China Journal of Agricultural Sciences

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2017MB026)

语种：中文

中文关键词：土壤盐分离子;灌溉;乌兰布和沙漠

外文关键词：Soil salt ions;Irrigation;Ulanbuh desert

分类号：S152.7

摘要：【目的】摸清乌兰布和沙漠绿洲不同来源灌溉水土壤盐离子分布特征。【方法】对乌兰布和沙漠绿洲进行实地取样分析,研究不同来源灌溉水土壤盐分离子分布特征。【结果】不同来源灌溉水均是阳离子主要以K+、Na+、Ca2+为主,阴离子主要以HCO-3、SO2-4、Cl-为主。不同来源灌溉水土壤全盐量分布趋势基本一致,均是表层含量最高,存在表聚现象。不同的灌溉水pH值变化趋势一致,呈先增加后减小的趋势,pH值均值都是在8. 5以上。不同来源灌溉水各盐分离子均随着土层深度的增加呈先减小后增加趋势,表层含量最高,具有明显的表聚现象。Ca2+、Mg2+、K++Na+、CO2-3、Cl-、SO2-4、全盐量相互之间呈极显著正相关(P﹤0. 01); pH值与CO2-3、Cl-、SO2-4、全盐量呈极显著正相关(P﹤0. 01),与Mg2+呈显著正相关(P﹤0. 05); HCO-3与其它各离子、全盐量及p H值均呈负相关关系,其中与CO2-3呈极显著负相关(P﹤0. 01),与SO2-4、全盐量呈显著负相关(P﹤0. 05)。【结论】不同来源灌溉水土壤全盐量、pH值及各盐分离子变化趋势一致,土壤盐分运移表现为盐分表聚特性。
[ Objective ] This paper aimed to find out the characteristics of salt ion distribution in irrigation water from different sources in Wu- lanbuhe desert oasis. [ Method] The distribution characteristics of different soil salt ions under different irrigation water in Ulanbuh desert oasis were investigated. [ Result] The difierent sources of irrigation water cationic ions were mainly K ＋ , Na ＋ and Ca2 ＋ , and the anions were mainly HCO3 , SO4^2- and Cl . The distribution trend of total salinity of irrigated water in different sources was basically consistent, with the highest surface content and table gathered phenomenon. The pH value of different irrigation water was consistent and decreased after the first increase, and the pH value was above 8.5. The salt ions of different sources of irrigation water decreased with the increase of soil depth and then increased, with the highest surface content and obvious table clustering. Tbere was a significantly positive correlation between Ca2 ＋ , Mg2 ＋ , K ＋ Na ＋ , CO3^2- , Cl , SO4^2- and total salt content（P 〈 0.01 ） ; Tbe pH value bad tbe very significantly positive correlation witb tbe CO3^2- , Cl ,SO4^2- , and total salt content（P 〈 0.01） and tbe significantly positive correlation witb Mg2 ＋ （P 〈 0.05） ; HCO3- bad a negative correlation with other ions, total salinity and pH value, a significant negative correlation with CO3^2- （ P 〈 0.01 ） , and a significant- ly negative correlation witb SO4^2- and total salinity（P 〈 0.05）. [ Conclusion] The cbanges of total salt content, pH value, and salt segrega- tion in irrigation soils from different sources were consistent, and the movement of soil salinity shows the characteristics of surface aggregation.