摘要
以渤海湾地区滨海盐碱地为研究对象,对位于该区域的河北唐海、天津大港、河北黄骅、山东东营四个地区的盐碱土进行含水量、含盐量的动态分析。结果表明:0~20 cm土层含水量同20~40 cm、40~60 cm、60~80 cm土层相比,其含水量月变化较为剧烈;唐海、大港、黄骅土壤含水量在大多数月份均随土层深度增加而增加,东营土壤含水量的垂直分布较均匀。黄骅、东营土壤盐分具有较强的表聚性;大港土壤盐分含量随土层深度增加而增加;唐海土壤含盐量在各月份的空间分布无规律性。综上,4个地区土壤水分、盐分的动态变化无一致性规律表现。
This paper take the coastal salt and alkaline land in the Bohai Bay area as the studied object, the soil water content and soil salt content of Tanghai, Dagang, Huanghua and Dongying were analyzed dynamically. The results show that, inter-monthly variation of water content in 0~20 centimeter soil layer changed tempestuously compared with 20~40, 40~60 and 60~80 centimeter soil layer. Soil water content in Tanghai, Dagang, Huanghua increased with the increasing soil layer depth in most months, while soil water content in Dongying distributed evenly in vertical direction. Soil salinity in Huanghua, Dongying concentrated in the soil surface, soil salt content in Dagang increased with the increasing soil layer depth,and soil salt content in different month were without regularity in space distribution. It can be concluded that the water-salt movement were without regularity in four localities.
引文
[1]王全九,单鱼洋.微咸水灌溉与土壤水盐调控研究进展[J].农业机械学报,2015,46(12):117-126.
[2]Phogat V,Yadav A K,Malik R S,et al.Simulation of salt and water movement and estimation of water productivity of rice crop irrigated with saline water[J].Paddy Water Environment,2010,8(4):333-346.
[3]支欢欢,杨敏生,董宇等.天津滨海地区盐碱土季节动态变化[J].土壤学报,2010,47(1):187-191.
[4]柴寿喜,杨宝珠,王晓燕等.渤海湾西岸滨海盐渍土的盐渍化特征分析[J].岩土力学,2008,29(5):1218-1221.
[5]鲍士旦.土壤农化分析[M].北京:中国农业大学出版社,2000:179-195.
[6]孙海燕,叶含春,许丽等.沙漠绿洲区平原水库下缘盐荒地水盐动态规律[J].干旱区研究,2017,34(5):967-971.
[7]Panigrahi B,Panda S N.Field test of a soil water balance simulation model[J].Agricultural Water Management,2003,58(3):223-240.
[8]李彬,王志春,迟春明.吉林省大安市苏打碱土含盐量与电导率的关系[J].干旱地区农业研究,2006,24(4):168-171.
[9]王耿明,姜琦刚,高永志等.松辽平原土壤盐渍化现状及盐分特征分析[J].水土保持研究,2008,15(3):105-111.
[10]史文娟,沈冰,汪志荣.层状土壤水盐动态研究与分析[J].干旱地区农业研究,2005,23(5):250-254.
[11]赵耕毛,刘兆普,陈铭达等.不同降雨强度下滨海盐渍土水盐运动规律模拟研究[J].南京农业大学学报,2003,26(2):51-54.
[12]张红,章光新,杨建峰等.人工控制潜水位下苏打盐渍土水盐动态分析[J].干旱区资源与环境,2008,22(5):149-154.