尹辉,蒋忠诚,杨奇勇,李晖.典型岩溶区土壤pH 值的空间异质性研究[J].广东农业科学,2013,40(11):48-51 |
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典型岩溶区土壤pH 值的空间异质性研究 |
Study of spatial variability of soil pH in typical karst area |
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DOI: |
中文关键词: 土壤 pH 空间异质性 典型岩溶区 |
英文关键词: soil pH spatial variability typical karst area |
基金项目:“十二五”国家科技支撑计划项目(2010BAE00739-02);广西科技开发项目(桂科转10124005,桂科攻1140002-3-1);国家自然科学基金(41261005);广西自然科学基金(2013GXNSFBA019222);桂林市科学研究与技术开发项目(20110120-6,20120122-2,20120125-1);广西师范大学教育发展基金会教师成长基金(JS2012009、JS2012012);中国地质科学院岩溶生态系统与石漠化治理重点开放实验室项目(KERDC201202);广西教育厅科研项目(201106LX070,201203YB0282013YB040) |
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中文摘要: |
应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征。结果表明:5~30cm各层土壤的pH均值在6.35~6.57之间,变异系数在9.49%~10.10%之间,不同深度之间土壤pH值的垂直变异不显著。其中,5cm深度的表层土壤pH值变异系数较大,属于中强度变异(10% |
英文摘要: |
By using Geo-statistics and GIS, combining with indoor sampling point distribution and field monitoring of soil water content, the spatial variability characteristics of soil pH in Guohua demonstration area were studied. Statistical analysis showed that the average soil pH among various layers was from 6.35 to 6.57 while variation coefficient was from 9.49豫to 10.10%, which revealed variation coefficient of soil pH had weak variability. Variation coefficient of soil pH in 5 cm layer was relatively bigger, belonging to middle intense variation (10% |
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