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 m 3个暗管间距,共9个处理,0~20、20~40、40~60 cm 3个土层定点取样,辅助滴管,分析盐分变化。[结果]A_1B_1、A_1B_2、A_1B_3、A_2B_1处理0~60 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5~7 m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] A jBj,AjB2,AjB3 and A2Bj had and the averaae 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.
出处
《安徽农业科学》
CAS
2018年第6期124-125,153,共3页
Journal of Anhui Agricultural Sciences
基金
河北省渤海粮仓科技示范工程项目
河北省科技支撑计划项目(152776122D)
关键词
淤泥质盐碱地
暗管
降盐
滨海区
Muddy saline soil
Subsurface pipe
Desalination
Coastal area
