| 不同种植年限蔬菜地土壤导水性能及影响因素 |
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| 引用本文： | 蔡彦明,沃飞,方堃,刘凤枝.不同种植年限蔬菜地土壤导水性能及影响因素[J].灌溉排水学报,2009(6). |
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| 作者姓名： | 蔡彦明 沃飞 方堃 刘凤枝 |
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| 作者单位： | 农业部环境保护科研监测所; |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金资助项目; 农业部948项目(2008Z10) |
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| 摘 要： | 对天津市蔬菜基地种植15年以上、10年以上、5年以上和未种植过蔬菜的土壤进行分析,结果表明,土壤容重和孔隙度的演变在各项理化性质中占主导地位。蔬菜地土壤容重、有机质含量随着种植年限的延长而增加;土壤孔隙度和微团聚体含量随着种植年限的增加逐渐降低。原状土壤饱和导水率变化范围为58.72×10-4~86.65×10-4cm/s,随着种植年限的延长田间土壤导水性能降低;扰动土壤饱和导水率变化范围为0.57×10-4~2.07×10-4cm/s,随着种植年限的延长而相对降低。该结果可为天津地区种植年限较长的蔬菜地土壤,特别是耕作层土壤结构改善及水分的有效利用提供参考。
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| 关 键 词： | 种植年限 蔬菜地土壤 导水性能 影响因素 天津 |
Conductive Capability and Its Influential Factors for Vegetable Soil with Different Planting Years in Tianjin City |
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| CAI Yan-ming,WO Fei,FANG Kun,LIU Feng-zhi.Conductive Capability and Its Influential Factors for Vegetable Soil with Different Planting Years in Tianjin City[J].Journal of Irrigation and Drainage,2009(6). |
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| Authors: | CAI Yan-ming WO Fei FANG Kun LIU Feng-zhi |
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| Institution: | CAI Yan-ming,WO Fei,FANG Kun,LIU Feng-zhi (Agro-Environmental Protection Institute,Ministry of Agriculture,Tianjin 300191,China) |
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| Abstract: | In this research,four kinds of vegetable soil in Tianjin vegetable base with different planting years,which including abandoned land,above 5 years,above 10 years,above 15 years,were compared and analyzed.Results showed that soil bulk density and soil porosity are principle factors in soil properties variation.As the increasing of vegetable planting years,soil bulk density and organic matter content were raise obviously.On the contrary,soil porosity and micro-aggregates were losing slightly.The undisturbed s... |
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| Keywords: | planting years vegetable soil conductive capability influential factors Tianjin |
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