| Effects of different magnetized-water treatments on soil desalinization |
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| DOI：10.7606/j.issn.1000-7601.2019.05.31 |
| Key Words: magnetized water soil desalination magnetization intensity Xinjiang |
| Author Name | Affiliation | | XU Li | College of Resource and Environmental Science, Xinjiang University, Urumqi, Xinjiang 830046, China
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China；University of Chinese Academy of Sciences, Beijing 100049, China；College of Biological and Geographical Sciences, Yili Normal University, Yining, Xinjiang 835000, China | | TANG Jin | Yili Academy of Forestry Sciences, Yining, Xinjiang 835000, China | | CHEN Shu-ying | Yili Academy of Forestry Sciences, Yining, Xinjiang 835000, China |
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| Abstract: |
| To explore desalination effects of soil under different magnetized water treatments, and to find the best of magnetic induction intensity on soil desalting effect, a field plot experiment was conducted to investigate effect of soil desalination under different magnetization treatments. Under field plot experiment, the treatments included 1 000 mT (T1), 2 000 mT (T2), 3 000 mT (T3), 3 600 mT (T4) and CK (control treatment), respectively. The results showed that magnetized water improved the leaching of Cl- and SO2-4 and decreased soil salinity under drip irrigation, in which the soil salinity, Cl- and SO2-4 decreased by 32.83%, 54.35% and 31.82%, respectively. There were different characteristics of soil salinity under different magnetization treatments in different soil layers. Under T2 treatment, soil salinity and Cl- dramatically decreased by 71.68% and 84.76%, which were at the depth of 10~20 cm and 0~10 cm, respectively. The contents of SO2-4 significantly decreased by 76.47% at the depth of 20~40 cm under T4 treatment. Desalination effect on soil by different magnetization treatments was significantly greater than control treatment but desalination effect of soil was not proportional with magnetic intensity. The desalination rate of soil was at 57.47% under T1 treatment, compared to CK, which was 46.1% higher. The T1 treatment had higher desalination effect than other treatments, therefore, 1000mT magnetic field intensity was optimal treatment in this experiment. To sum up, magnetized water with drip irrigation can be used to lower salt content and thus reduce soil salinity. Additionally,it could be an effective method for improving medium and light saline soil. |
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