| 王勇辉,郭双双,海米提·依米提.精河河下游河岸带土壤养分与盐分特征分析[J].干旱地区农业研究,2013,31(3):133~138 |
| 精河河下游河岸带土壤养分与盐分特征分析 |
| Analysis of soil nutrients and salinity characteristics in riparian zone of downstream of Jinghe River |
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| DOI：10.7606/j.issn.1000-7601.2013.03.21 |
| 中文关键词: 土壤养分 土壤盐分 空间变异 主成分分析 精河河 |
| 英文关键词:soil nutrient soil salt spatial varibility principal component analysis Jinghe River |
| 基金项目:国家自然科学基金项目“艾比湖湿地生态环境演变及生态恢复研究”(41171036)；中国沙漠气象科学研究基金课题“艾比湖干涸湖底疏松裸土区表层土壤特征与沙尘天气关系研究”(sqj2011009)；新疆师范大学优秀青年教师科研启动基金项目“艾比湖干涸湖底表层土壤盐分现状及成因分析”(XJNU1013) |
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| 中文摘要: |
| 以艾比湖流域的精河河下游河岸带土壤为研究对象,对不同植被类型覆盖条件下土壤养分与盐分进行测定,通过描述性统计及主成分分析,结果表明:(1)研究区土壤养分整体呈现中等空间变异特征,极差值除速效钾、碱解氮外,其它指标变化较为稳定；土壤盐分变异系数较大,呈现强烈的空间变异特征:(2)土壤养分中,有机质、全钾、碱解氮与主成分1相关性较大,速效钾与主成分2相关性较大,可作为研究区养分状况的特征因子:研究区土壤经养分分级显示,该区域有机质、全钾极为贫乏,碱解氮、速效钾较为贫乏；(3)土壤中的总盐含量与Ca2+、Mg2+、Cl-、K+与Na+存在极显著的正相关关系；Ca2+、Mg2+、Cl-、K++Na+是研究区盐渍化状况的特征因子；研究区土壤经盐渍化分级为盐土。 |
| 英文摘要: |
| To investigate the correlation between soil nutrients
and salinity characteristics in Bohe River riparian in Ebinur Lake, total salt content, eight ions content and soil nutrients in different types of vegetation were measured by using correlation analysis and principal component analysis. The results showed that:(1)over all, soil nutrients showed moderate spatial variability, except for potassium and available nitrogen, the other nutrients parameters were stable; The coefficient of variation of soil salinity showed a significant spatial variability;(2)There were obvious correlation between organic matter, total K, available nitrogen and the principal component; There were obvious correlation between potassium and the second principal component; Organic matter, total K, available nitrogen, and potassium
could be served as characteristie faetors of the soil nutrients study. The results showed, in the researeh area, organic matter and total K were extremely poor, available nitrogen and potassium were relatively poor by soil nutrient elassification standard;(3)There were significant positive correlation between total salt content and contents of Ca2+、Mg2+、Cl-、K++Na+; Content of Ca2+、Mg2+、Cl-、K+ and Na+ were used as characteristies factors of salinization study. By salinization
classification standard, soil in the research area was classified as saline. |
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