| 土壤调理剂对滨海吹填土的改良效应 |
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| 引用本文： | 张蕊,刘洪庆,高雅星,韩桂鸥,倪晓丰,王丽娜.土壤调理剂对滨海吹填土的改良效应[J].中国土壤与肥料,2014(5):27-31. |
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| 作者姓名： | 张蕊 刘洪庆 高雅星 韩桂鸥 倪晓丰 王丽娜 |
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| 作者单位： | 天津市海林园艺环保科技工程有限公司,天津,300457 |
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| 基金项目： | 2013年天津市第九批科技支撑计划项目:滨海新区吹填土绿化及综合开发利用科技示范 |
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| 摘 要： | 采用蘑菇棒、锯末、诺沃肥、脱硫石膏组成的土壤调理剂,通过调理剂掺拌和水力淋洗相结合的方法,对滨海吹填土进行土壤改良试验,检验该调理剂改良吹填土的可行性,并确定调理剂的最佳用量。研究结果表明:调理剂可有效改善土壤物理性状,减小土壤容重,增大渗透率和非毛管孔隙度。调理剂的使用虽然没有明显改变吹填土土壤盐分的去除总量,但可以有效提高土壤脱盐效率,减少洗盐用水量,试验组用水量为对照组的69.23%。其所去除的盐离子以Cl~-和HCO_3~-为主。调理剂减弱了土壤溶液中盐分对植物的毒害作用,其自身也为植物提供了所需养分;随着调理剂用量的升高,植物生物量也相应增大。综合考虑使用土壤调理剂对滨海吹填土的改良效果,确定其最佳用量为15%。
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| 关 键 词： | 土壤调理剂 吹填土 土壤改良 |
| 收稿时间： | 2013/12/5 0:00:00 |
| 修稿时间： | 2014/5/8 0:00:00 |
Improvement effect of soil conditioner on coastal dredge fill |
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| ZHANG Rui,LIU Hong-qing,GAO Ya-xing,HAN Gui-ou,NI Xiao-feng,WANG Li-na.Improvement effect of soil conditioner on coastal dredge fill[J].Soil and Fertilizer Sciences in China,2014(5):27-31. |
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| Authors: | ZHANG Rui LIU Hong-qing GAO Ya-xing HAN Gui-ou NI Xiao-feng WANG Li-na |
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| Institution: | ZHANG Rui;LIU Hong-qing;GAO Ya-xing;HAN Gui-ou;NI Xiao-feng;WANG Li-na;Tianjin Hailin Gardening and Environmental Protection Science and Technology Engineering Company; |
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| Abstract: | The research used the mixture of mushroom cultivation,saw powder,novogro and desulfurizated gypsun as soil conditioner to improve the soil property of the coastal dredge fill during mixing and leaching process.Base on it,feasibility of soil conditioner was verified and the better application rate was chosen.The results showed that soil conditioner had positive effect on soil physical properties,which soil bulk density was declined,soil infiltration and porosity were increased with the application of the soil conditioner.The desalination rate in the treatment group was much higher than that in the control group,although the total removal of soil salinity was not increased.The water consumption in the treatment group accounted for 69.23% of that in the control group.Soil Cl- and HCO-3 were the major ions which were removed in the desalination.The soil nutrient was promoted and the toxic effect of soil salinity on plants was alleviated with soil conditioner.Biomass increased with the increasing of the application rate of soil conditioner.It was concluded that the best application rate of soil conditioner was 15% after comprehensive consideration. |
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| Keywords: | soil conditioner dredger fill soil improvement |
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