植穴控制体结构因素对盐渍土有机质含量的影响

以树木、填料、覆膜材料构建植穴控制体（PHCB）,形成盐渍土壤的＂淡化肥沃层＂,通过研究PHCB结构因素对土壤有机质含量的影响规律,优化PHCB结构并为其应用于盐渍土改良提供理论依据。选取树种、PVA/PAM配比、果胶浓度、填料、填充厚度和填充位置为影响因素,植穴内、外土壤有机质含量为试验指标,设计U12（2×35）均匀试验。运用PASW Statistics 18分析软件对试验数据进行回归分析,建立植穴内、外土壤有机质含量的回归预测方程,F值检验结果显示,土壤有机质含量与PHCB结构因素间线性相关性显著（R2=0.991）。t检验结果表明：PHCB各结构因素对植穴内土壤有机质含量影响的重要性...

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Bibliographic Details
Published in实验室研究与探索 Vol. 34; no. 8; pp. 19 - 23
Main Author 张云霞 吴丽萍 文科军 李庆波
Format Journal Article
LanguageChinese
Published 天津城建大学环境与市政工程学院,天津,300384 2015
Subjects
回归分析
土壤有机质
植穴控制体
结构因素
回归分析
结构因素
planting hole control body (PHCB)
regression analysis
植穴控制体
structure factors
土壤有机质
soil organic matter content
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ISSN1006-7167

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Summary:以树木、填料、覆膜材料构建植穴控制体（PHCB）,形成盐渍土壤的＂淡化肥沃层＂,通过研究PHCB结构因素对土壤有机质含量的影响规律,优化PHCB结构并为其应用于盐渍土改良提供理论依据。选取树种、PVA/PAM配比、果胶浓度、填料、填充厚度和填充位置为影响因素,植穴内、外土壤有机质含量为试验指标,设计U12（2×35）均匀试验。运用PASW Statistics 18分析软件对试验数据进行回归分析,建立植穴内、外土壤有机质含量的回归预测方程,F值检验结果显示,土壤有机质含量与PHCB结构因素间线性相关性显著（R2=0.991）。t检验结果表明：PHCB各结构因素对植穴内土壤有机质含量影响的重要性排序为,树种〉果胶浓度〉填料〉填充厚度〉PVA/PAM配比〉填充位置,其中树种、敷膜材料的影响为负效应。PHCB技术应用于盐渍土改良是可行的,生物质填料的施用可有效提高土壤有机质含量,但敷膜材料及施用量尚需进一步优化。
Bibliography:Tree,filler,membrane material were used to build planting hole control body（ PHCB） for the ＂ desalinized fertile layers＂ in saline soil. The effects of structure factors of the PHCB on soil organic matter were studied to optimize the PHCB and provide theory basis for improving saline soil. The experimental schemes were designed by homogeneous array of U12（ 2 × 35） to investigate the influence of the structure factors on soil organic matter content inside or outside of planting hole. Regression analysis showed with PASW statistics 18 that the correlation was obvious between soil organic matter content and structure factors of PHCB（ R2= 0. 991）. The factors having significant influence on soil organic matter content inside PHCB were in the following order： tree species pectin concentration filler filling thickness mass ratio of PVA / PAM filling position. The significant ordering of the effects on soil organic matter outside PHCB is as following： pectin concentration filling position filler tree species mass ra
ISSN:1006-7167