期刊论文

Wang, H.

中文

排灌机械工程学报

1674-8530

2022

40

1

80-86

10.3969/j.issn.1674-8530.20.0105

国家自然科学基金资助项目（41471185）； 湖南创新型省份建设专项经费资助项目（2020NK2003）；

本校为第一且通讯机构

选取再生水原液及其稀释2,4,6倍作为灌溉水源,设置再生水单一灌溉(4种处理RW,RW-2,RW-4,RW-6)、再生水-蒸馏水交替灌溉(4种处理ARW,ARW-2,ARW-4,ARW-6)2种灌溉模式,以蒸馏水灌溉(CK)为对照,对红壤阳离子交换性能的影响进行研究.结果表明:与CK处理比较,单一灌溉模式下各处理交换性K~+,Na~+,Mg~(2+)的累积含量分别平均提高了121.08%,520.65%和16.22%,且随着再生水稀释倍数增大呈减小趋势,这种趋势以交换性K~+表现最显著;再生水-蒸馏水交替灌溉模式下各处理交换性Na~+,Mg~(2+)的累积含量分别平均提高了997.45%和18.89%,而交换性K~+没有累积现象.两种灌溉模式下各处理的土壤阳离子交换量(CEC)均未显...

The original reclaimed water solution and its diluted 2, 4, and 6 times were selected as the irrigation water source, and irrigation with distilled water (CK) as control. Two irrigation modes named single irrigation with reclaimed water (4 treatments RW, RW-2, RW-4, RW-6) and alternate irrigation with reclaimed water and distilled water (4 treatments ARW, ARW-2, ARW-4, ARW-6)were used to study the effect on cation exchange performances of red soil. The results show that compared with CK treatment, the exchangeable K+, Na+ and Mg2+ accumulated c...