玛纳斯河下游绿洲荒漠交错带土壤盐碱化特征分析  

The Characteristics of Soil Salinization in Oasis-Desert Ecotone of the Lower Reaches of Manas River

作　　者：刘韬韬[1,2] 熊友才[3] 杨岩[2] 涂锦娜[2] 王绍明[2] 

机构地区：[1]石河子大学理学院,石河子832003 [2]石河子大学生命科学学院,石河子8320003 [3]兰州大学干旱与草地生态教育部重点实验室,兰州730000

出　　处：《石河子大学学报（自然科学版）》2012年第2期186-192,共7页Journal of Shihezi University(Natural Science)

基　　金：国家重大基础研究计划(973)项目(2009CB825101)

摘　　要：为了解绿洲荒漠交错带盐渍化现状及为盐渍化防治提供基础资料,研究以玛纳斯河下游绿洲荒漠交错带为案例区,通过野外采样和室内试验测定,分析了0～100cm土壤的盐渍化特征及其类型。结果表明:①研究区土壤各层pH值均>9,属碱性土壤;②土壤含盐量总体不高,土壤中阴离子以SO42-和Cl-为主,阳离子主要为Na++K+;各离子间关系复杂,且盐分表现为上下部盐分含量高,中部盐分含量小的特点;③研究区盐渍化程度不严重,盐分类型主要为氯化物-硫酸盐盐渍化土和硫酸盐-氯化物盐渍化土类型。In order to study the current situation of soil salinization in oasis-desert ecotone so as to provide basic information for salinization prevention,this paper took the oasis-desert ecotone of the lower reaches of Manas River as the study field. After field sampling and laboratory testing,the characteristics and types of soil salinization of 0-100cm layers were analyzed. The results showed that 1） pH values of each layer were above 9,alkaline soil;2） salt content was not high overall, the predominant anions in the soil were SO42 and Cl, while the predominant cation were Na＋ and K＋ , with complex interrelationship among them,and the salt contents in the upper and lower layers were higher than the middle layer;3） the degree of salinization was not severe in the study area,and the main soil types were chloride-sulfate soil and sulfate-chloride salinization soil.

关 键 词：玛纳斯河流域 绿洲荒漠交错带 土壤 盐碱化特征 

分 类 号：S153[农业科学—土壤学] S714[农业科学—农业基础科学]