Effects of Subsurface Pipe Drain on Soil Desalination and Water Use Efficiency of Oil Sunflower
SHI Jia
TIAN Juncang
ZHU Lei
Abstract：Taking oil sunflower as the model plant, we comparatively studied the impact of subsurface pipe drain and non-pip drain on soil desalination and water use efficiency of the plant. The experiment was conduct-ed in Miaotai, Huinongin Ningxia and the drained water was pumped using solar-powered pumps. During the ex-periment, we measured soil salinity, change of groundwater table, as well as the yield. The results showed that, compared with non-pipe drain, in the area controlled by the subsurface pipe drain, the groundwater table dropped by 0.09 m, salt content in groundwater decreased by 9.79, soil salinity decreased by 13.64%, and the yield increased by 8.10%. In addition, it increased the water productivity by 8.40%and the water production effi-ciency by 9.86%.
Keywords：solar energysubsurface pipe drainageoil sunflowerwater-salt regulationsoil salinitywater pro-duction efficiency
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 46-50 )