托木尔峰自然保护区喀拉玉尔滚河流域土壤盐分特征分析  

Research on Soil Salinity Characters of the Head Stream Area of Karayulgun River on the Southern Slope in Mount Tuomuer

作　　者：马国飞[1] 满苏尔.沙比提 张雪琪[1] MA Guo-fei;MANSUR·Sabit;ZHANG Xue-qi(The College of Geographic Sciences and Tourism,Xinjiang Normal University,Urumqi,Xinjiang,830054,China)

机构地区：[1]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054

出　　处：《新疆师范大学学报（自然科学版）》2018年第2期31-36,共6页Journal of Xinjiang Normal University(Natural Sciences Edition)

基　　金：国家自然科学基金项目(41461107);新疆师范大学地理学博士点支撑学科开放课题基金项目(XJNU-DL-201608)资助

摘　　要：文章以托木尔峰国家级自然保护区喀拉玉尔滚河上游河谷为研究区域,应用经典统计分析方法对该河谷土壤盐分空间特征进行分析。结果表明:(1)研究区土壤的全盐、Cl-、SO2-4、Mg2+及K++Na+含量的变异系数CV≥100%,属于强变异性;p H值、HCO-3及Ca2+含量的变异系数CV<100%,属于中等变异性;(2)土壤盐渍化类型以硫酸盐及偏硫酸盐渍土为主,土壤盐渍化程度以极轻或轻度为主;(3)土壤p H值呈弱碱性,整体空间变化微小,研究区较低海拔的土壤中全盐和K++Na+含量远超过其它盐分离子,且二者含量变化趋势近似一致;随着海拔高度的增加,土壤中各盐分离子含量微小,趋于稳定;(4)主成分分析结果表明,全盐、SO2-4、HCO-3及K++Na+是研究区土壤盐渍化状况的特征因子。This thesis selected the head stream area of Karayulgun River on the Tuomuer Peak National Nature Reserve as the study area,and made a study on spatial characteristics of this area＇s soil salinity by using classical statistical analysis method.The results shows that：（1） The coefficient of variation of total salt content,Cl^-,SO4^2-,Mg^2 ＋and the sum content of K＋＋ Na＋in the study soil were higher than 100%,which belongs to strong variability. HCO3^- and Ca^2 ＋belong to medium variation with their coefficient of variation of content lower than 100%.（2）The soil salinization is mainly sulfate and partial sulfate saline soil,with light or mild degree in majority.（3）Soil PH presents weak alkalinity,and the whole spatial variation was small.The content of total salt,K^＋＋ Na^＋in the soil of lower altitude was much more than other salt ions,and the change tendency were approximately consistent.With the increase of altitude,the content of soil salinity ions is small,and tends to be stable.（4）The results of principal component analysis showed that the total salt,SO4^2-,HCO^-3,K^＋＋ Na^＋were the characteristic factors of soil salinization in the study area.

关 键 词：土壤盐分 空间特征 上游河谷 喀拉玉尔滚河 托木尔峰国家级自然保护区 

分 类 号：S156.4[农业科学—土壤学]