摘要
为探究干旱区长期膜下滴灌对不同类型土壤农田盐分变化的影响,选取了石河子垦区滴灌农田,于2008-2014年,分别对沙土、壤土和黏土不同类型地块膜下滴灌0~100 cm深度进行土壤盐分监测,探究农田土壤盐分在剖面上的分布特征及其动态变化规律。研究结果表明:膜下滴灌土壤盐分在0~30 cm均有所下降,黏土和壤土30~60 cm、60~100 cm盐分有些年份增加,但至2014年,总体上均呈下降趋势。沙土30~60 cm、60~100 cm盐分至2012年各地块有增有减,30~60或60~100 cm仍存在盐分累积现象。
In order to explore the effect of long-term mulched drip irrigation on changes of soil salinity for different soil type farmland in arid regions, this study has elected the drip irrigation reclamation area of Shihezi as main research object. For exploring the distribution characteristic and dynamic change law of soil salinity in soil profile, soli salinity in 0- 100 cm soil is monitored for different types of sand, loam and clay mulched drip irrigation farmland from the year 2008 to 2014. The results show that the soil salinity in 0-30 cm soil all decrease; 30- 60 cm and 60- 100 cm soil of clay and loam farmland increase in some years. However, in the year 2014, it showed a downward trend. In the year 2012, soil salinity of 30- 60 cm and 60-100 cm soil of different sand farmland increased or decreased. However, the accumulation of soil salinity still existed in 30- 60 cm or 60 - 100 em soil.
作者
王雅琴
刘洪光
徐万里
孟建
李勇军
WANG Ya-qin LIU Hong-guang XU Wan-li MENG Jian LI Yong-jun(Paotai Soil Improvement Test Station of the Eighth Division, Xinjiang Production and Construction Corps, Shihezi 832066, Xinjiang, China College of Water and Architectural Engineering, Shihezi University, Shihezi 832003, Xinjiang, China Institute of Soil and Fertilizer and Agricultural Sparing Water, Xinjiang Academy of Agricultural Science, Urumqi 830091, China)
出处
《中国农村水利水电》
北大核心
2017年第2期26-30,36,共6页
China Rural Water and Hydropower
基金
国家科技支撑计划项目(2012BAD05B03)
国家自然科学基金新疆联合基金重点项目(U1203280)
国家自然科学基金(U1403183
41361071
51269067)
关键词
膜下滴灌
土壤盐分
干旱区
mulched drip irrigation
soil salinity
arid region
