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海砂和电石渣对吹填土理化性状的影响及水盐动态研究
引用本文:柯丽丽,黄明勇,苏德荣,邹桂梅.海砂和电石渣对吹填土理化性状的影响及水盐动态研究[J].水土保持学报,2010,24(2).
作者姓名:柯丽丽  黄明勇  苏德荣  邹桂梅
作者单位:1. 北京林业大学省部共建"森林培育与保护"教育部重点实验室,北京,100083;天津泰达园林建设有限公司,天津,300457
2. 天津泰达园林建设有限公司,天津,300457
3. 北京林业大学省部共建"森林培育与保护"教育部重点实验室,北京,100083
基金项目:国家科技支撑计划项目(2007BAD67B03)
摘    要:以吹填土、海砂、电石渣为材料,采用土柱模拟实验研究吹填土:海砂:电石渣=0.55:0.40:0.05比例的混合基质淋洗脱盐下的水盐动态,脱盐后基质的理化性质,以确定是否适合做园林绿化土壤。结果表明:基质的水盐运移可分为盐峰的形成、下移和消失3个阶段;脱盐深度与各层淋洗水量呈直线相关关系(y=0.0028x-3.2675(R2=0.9124))提供了淋洗定额的参考价值;脱盐后0-60cm和60-140cm深度的土层,盐分离子组成分别为Ca2+-HCO3-、SO42-型和Ca2+-SO42-型;通体质地为细砂土,通气透水性强;也没有脱盐碱化的现象;基质肥力水平较低。可见3种材料采用该比例做园林绿化基质是可行的,但是脱盐后培肥等配套措施至关重要。

关 键 词:吹填淤泥  电石渣  水盐动态  

Effects of Sea Sand and Calcium Carbide Waste on Physical and Chemical Properties of Dredged Sediments and Its Water-Salt Dynamics
KE Li-li,HUANG Ming-yong,SU De-rong,ZOU Gui-mei.Effects of Sea Sand and Calcium Carbide Waste on Physical and Chemical Properties of Dredged Sediments and Its Water-Salt Dynamics[J].Journal of Soil and Water Conservation,2010,24(2).
Authors:KE Li-li  HUANG Ming-yong  SU De-rong  ZOU Gui-mei
Institution:KE Li-li1,2,HUANG Ming-yong2,SU De-rong1,ZOU Gui-mei1,2 (1.Beijing Forestry University/Key Laboratory for Silviculture , Conservation of Ministry of Education,Beijing 100083,2.Tianjin TEDA Eco-l,scape Development Co.Ltd.,Tianjin 300457)
Abstract:With dredged sediment,sea sand and calcium carbide waste being taken as the material,this test is designed to measure water & salt movement and physical & chemical properties after desalting and desalted alkalization of artificial soil,which was mixed dredged sediment,sea sand and calcium carbide waste with the ratio of 0.55:0.40:0.05,were studied under steadily infiltrated condition.The results showed that three salt peak periods were found:the forming stage,the moving down stage and the disappearing stage...
Keywords:dredged sediment  calcium carbide waste  water-salt dynamic  
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