期刊论文

Effects of different water quality and irrigation methods on red soil water repellency and physical-chemical properties

Wang, H.

中文

排灌机械工程学报

1674-8530

2018

36

8

651-655,661

10.3969/j.issn.1674-8530.18.1167

国家自然科学基金资助项目（41471185） 湖南省教育厅科学研究重点项目（15A084） 湖南省重点研发计划项目（2016JC2032）

本校为第一且通讯机构

以蒸馏水为对照,选取再生水和稀释2,4,6倍再生水等4种低质水,采用连续灌溉和再生水-蒸馏水交替灌溉等2种灌溉方式对红壤进行1 a的处理,以此探明灌溉水质和灌水方式对酸性土壤斥水性、pH、盐分及有机质质量比的影响.结果表明:2种灌溉方式下红壤均产生亚临界斥水性,连续灌溉下红壤接触角比交替灌溉平均增加了23.1°;2种灌溉方式均使红壤酸性增强,盐分和有机质质量比增加,其中连续灌溉下的增长率大于交替灌溉下增长率;连续灌溉下红壤斥水性、pH、盐分和有机质质量比随灌溉水质的变化均可用二次函数来描述,决定系数均在0.9以上;交替灌溉下,红壤斥水性和盐分与灌溉水质的关系可用二次函数来表示,决定...

In order to research the effect of different irrigation methods and water quality on acidic soil water repellency, pH, salt and organic matter content, four kinds of low-quality water such as reclaimed water and diluted 2, 4, 6 times of reclaimed water were selected, distilled water as contrast, using reclaimed water for continuous irrigation as well as alternate irrigation with reclaimed water and distilled water to do red soil column infiltration experiments for more than 1 year. Results show that induction of subcritical water repellency fol...