| 两种基于芦苇秸秆还田的改良措施对崇明东滩围垦土壤理化性质和微生物呼吸的影响 |
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| 引用本文： | 陈金海,李艳丽,王磊,张文佺,王红丽,付小花,乐毅全,管永健,邱忠虹.两种基于芦苇秸秆还田的改良措施对崇明东滩围垦土壤理化性质和微生物呼吸的影响[J].农业环境科学学报,2011,30(2). |
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| 作者姓名： | 陈金海 李艳丽 王磊 张文佺 王红丽 付小花 乐毅全 管永健 邱忠虹 |
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| 作者单位： | 1. 同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室,上海,200092
2. 上海东滩国际湿地有限公司 |
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| 基金项目： | 科技部科技支撑重大项目，上海市科委重大科技攻关项目 |
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| 摘 要： | 在崇明东滩湿地公园设置了3块实验田,研究基于芦苇直接还田(处理Ⅰ)和堆肥后还田(处理Ⅱ)的处理措施对盐碱土壤的改良效应以及对土壤微生物呼吸和植物生长的影响,并通过主成分分析法评价仅考虑传统土壤肥力指标及加和了土壤微生物呼吸和植物生物量等碳收支指标的土壤综合改良效应.结果表明,两种模式都能显著提高土壤的养分.总氮、总磷和总钾均显著高于对照(P＜0.05),有机质较对照分别提高10.8%(P=0.053)和10.9%(P=0.052);地上生物量为对照的344%(P=0.000)和167%(P=0.000),但土壤微生物呼吸仅分别较对照提高14%(P=0.085)和43%(P=0.001).主成分分析结果显示仅考虑传统的土壤肥力指标,对照、处理Ⅰ、处理Ⅱ的综合得分分别为-0.641、0.260、0.381,加和土壤微生物呼吸与植物生物量后综合主成分得分为-1.011、0.644、0.367.这表明按传统评价指标,处理Ⅱ是较好的改良模式,但加和了土壤微生物呼吸与植物固碳量等碳收支指标后,处理Ⅰ得分高于处理Ⅱ,因此这是一种相对低碳化的改良模式.
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| 关 键 词： | 崇明东滩 盐碱土改良 芦苇秸秆还田 微生物呼吸 主成分分析 |
Effect of Two Improving Measures Based on Returning Phragmites communis Straw on Soil Phy-chemical Properties and Microbial Respiration of the Reclaimed Lands in Chongming Dongtan,China |
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| CHEN Jin-hai,LI Yan-li,WANG Lei,ZHANG Wen-quan,WANG Hong-li,FU Xiao-hua,LE Yi-quan,GUAN Yong-jian,QIU Zhong-hong.Effect of Two Improving Measures Based on Returning Phragmites communis Straw on Soil Phy-chemical Properties and Microbial Respiration of the Reclaimed Lands in Chongming Dongtan,China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(2). |
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| Authors: | CHEN Jin-hai LI Yan-li WANG Lei ZHANG Wen-quan WANG Hong-li FU Xiao-hua LE Yi-quan GUAN Yong-jian QIU Zhong-hong |
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| Institution: | CHEN Jin-hai1,LI Yan-li1,WANG Lei1 *,ZHANG Wen-quan1,WANG Hong-li1,FU Xiao-hua1,LE Yi-quan1,GUAN Yong-jian2,QIU Zhong-hong2(1.State Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China,2.Shanghai dongtan international wetlands Co.,LTD,China) |
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| Abstract: | Returning crop straw to land is generally an important measure to soil improvement.Phragmites communis is the most plentiful straw resource in Chongming Island,China.However,few studies on returning Phragmites communis straw and its soil improving effect have been reported.In the experiment,three experimental fields in Chongming Dongtan were selected to study the effect of two improving measures based on returning Phragmites communis straw(measure I:returning Phragmites communis straw plus tillage and ferti... |
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| Keywords: | Chongming Dongtan saline-alkali soil improvement returning Phragmites communis straw microbial respiration principal components analysis |
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