CAJ | 학술논문

以乌鲁木齐城市表层土壤为研究对象,对建成区和郊区不同用地类型土壤全盐量、可溶性离子等指标进行测定,采用相关性分析以及主成分分析方法分析土壤盐分特征.结果表明:在研究区,郊区未利用地、郊区农用地、建成区土壤全盐量均值依次增高.不同土壤类型全盐量变异系数范围为0. 691~0. 715,属于强变异强度,离散程度较大. Cl-,Na+,Ca2+,SO2-4 含量较高,尤其是SO2-4 ;在0. 01水平上,土壤全盐与Cl-,SO2-4 ,Ca2+,Mg2+,Na+呈显著正相关,与HCO-3 呈显著负相关;通过主成分分析可以看出,Mg2+,SO2-4 ,Ca2+ 3个离子是表征研究区土壤盐渍化的主要特征因子,经土壤盐渍化程度的等级划分标准评价,确定研究区土壤为非盐渍化土.
이오로목제성시표층토양위연구대상,대건성구화교구불동용지류형토양전염량、가용성리자등지표진행측정,채용상관성분석이급주성분분석방법분석토양염분특정.결과표명:재연구구,교구미이용지、교구농용지、건성구토양전염량균치의차증고.불동토양류형전염량변이계수범위위0. 691~0. 715,속우강변이강도,리산정도교대. Cl-,Na+,Ca2+,SO2-4 함량교고,우기시SO2-4 ;재0. 01수평상,토양전염여Cl-,SO2-4 ,Ca2+,Mg2+,Na+정현저정상관,여HCO-3 정현저부상관;통과주성분분석가이간출,Mg2+,SO2-4 ,Ca2+ 3개리자시표정연구구토양염지화적주요특정인자,경토양염지화정도적등급화분표준평개,학정연구구토양위비염지화토.
This study investigates the total salt content and soluble ion parameters of different topsoil types in urban and suburban in Urumqi. The characteristics of soil salinity were used the correlation and principal component methods. The results showed that the average value of the total salt content of the whole study area, suburb unused land,suburb farmland and build-up area increased in turn. The variation coefficients of total salt content in different soil types ranged between 0. 691 and 0. 715, which belonged to the highly variation. The dispersion of total salt content was greater. The contents of Cl-, Na+, Ca2+, SO2-4 were higher, especially SO2-4 . There are significantly positive correlations between the total salt content and Cl-,SO2-4 ,Ca2+,Mg2+,Na+contents and negative correlation between the total salt content and HCO-3 content at the 0. 01 level . Mg2+,SO2-4 ,Ca2+were the characteristic factors to characterize soil salinization of topsoil in Urumqi. The topsoil were non-salinization by classification criterion of soil salinization.