摘要:
[目的]探讨滨海淤泥质盐土区暗管埋设的适宜参数.[方法]试验设计60、80、100 cm 3个暗管埋深,5、10、15 m3个暗管间距,共9个处理,0~20、20~40、40~60 cm3个土层定点取样,辅助滴管,分析盐分变化.[结果]A1B1、A1 B2、A1 B3、A2B1处理0~印cm土体盐分最低,平均含盐量5.4 ~6.4 g/kg,较原始盐分土壤降低60%以上,降盐效果明显.[结论]淤泥质滨海盐土区辅助滴管措施,暗管埋深60~80 cm为宜;80 cm埋深下,暗管间距不宜高于10 m,在5~7m具有较好的降盐效果.%[Objective] To explore the suitable parameters of subsurface pipe in coastal muddy saline soil.[Method] Test designed 60 cm,80 cm,100 cm three deep and 5 m,10 m,15 m pipe spacing.There were 9 treatments,soil samples was from 0-20 cm,20-40 cm,40-60 cm soil lawer.Salt change was analyzed by using dropper.[Result] A1 B1,A1 B2,A1 B3 and A2 B1 had the lowest salt content of 60cm soil,and the average salt content was 5.4-6.4 g/kg,which was 64% lower than that of the original salt soil.[Conclusion] The situable depth of the muddy coastal saline soil is 60-80 cm,and the distance between the deep pipe should not be higher than 10m,and 5-7 m is better.