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- W2354702963 abstract "To explore the mechanism of directional migration of water and salt in soil and the surface saltdischarging pattern through drip irrigation under plastic film in arid areas,nine experimental treatments were set up by various combination of two factors,irrigation quota M and salt gradient TD,comparing with three experimental controls,under-plastic drip irrigation CK1,general furrow irrigation CK2and border irrigation CK3,which were conducted for an under-plastic drip irrigation research project in Xinier town of Weili county in Xinjiang. The results indicate that in the regional-scale of 0~50cm,water and salt in soil of #1~#9 treatments in the horizontal direction migrated and accumulated from center to outside,water and salt directional migration mechanismis obviously identified,suitable at M=300~375m3/hm2,TD=10~30cm,while in CK1it is not so evident,and CK2and CK3do not have directional migration characteris tics. In the vertical direction,soil salinity in 40~60cm is more than those in 0~20cm layer,water and salt in soil from upgrade layer tend to migrate upward to the film side of bare surface,and in CK2and CK3,there are no such characteristics. Based on the migration mechanism and accumulation effect of water and salt in soil migrate to the film side and outside in field surface through drip irrigation under plastic film,it took bare surface between two plastic films to start surface salt-discharging. The results show that soil sa linity in surface salt-discharging area fell by 36.7%~63.3%." @default.
- W2354702963 created "2016-06-24" @default.
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- W2354702963 date "2013-01-01" @default.
- W2354702963 modified "2023-09-23" @default.
- W2354702963 title "Research on distribution characteristics and salt-discharging effect of directional migration of water and salt in soil through drip irrigation under plastic film" @default.
- W2354702963 hasPublicationYear "2013" @default.
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