A Study on Soil Temperature Change in Grape Growth
Period under Drip Irrigation with Trenching and Coating
LU Hua-tian，LIU Hong-guang
Author information+
College of Water Conservancy and Architecture Engineering，Shihezi University，Shihezi 832000，Xinjiang，China
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History+
Received
Revised
Published
2018-06-25
2018-08-23
2018-12-15
Online
2018-12-31
Abstract
In order to explore the effect of the technology of drip irrigation with trenching and coating on soil temperature change during grape
growth period，this paper analyzes the temperature variation of 0 ～ 100 cm soil layer inside and outside the membrane under different drip
irrigation water volume and different trenching modes according to the field experiment conducted in 2016． The variance analysis method is
used to compare the significant differences in temperature between the soil layers inside and outside the membrane under different irrigation
volumes and different trenching modes． The results show that the fluctuation trend of temperature of each soil layer is consistent with the trend
of atmospheric temperature，and the influence of atmospheric temperature is weakened with the increase of soil depth，regardless of whether
the soil temperature in the membrane or the soil temperature outside the membrane is between 14 ℃ and 33 ℃ ． Through variance analysis，
it is found that the effect of drip irrigation on the temperature of 0 ～ 60 cm in the membrane and 0 ～ 40 cm in the membrane is significant．
Compared with the low－irrigation treatment，the high－irrigation treatment reduces the soil temperature of the 0 ～ 20 cm soil layer in the
membrane by 2．9 ℃，and increases the soil temperature of the 20～ 40 cm and 40～ 60 cm soil layers in the membrane by 1．8 ℃ and 0．36 ℃，
respectively． Outside the membrane，compared with low － irrigation treatment，the medium and high irrigation treatments increase the
temperature of 0～ 20 cm soil layer by 0．95 ℃ and 1．26 ℃，respectively，and increase the soil temperature of 20～ 40 cm soil layer by about
1 ℃ ． The effect of the trenching mode on the temperature inside the membrane and the temperature outside the membrane is not significant．
Appropriately increasing the width of the trench can slightly increase the soil temperature inside and outside the membrane．
LU Hua-tian, LIU Hong-guang.
A Study on Soil Temperature Change in Grape Growth
Period under Drip Irrigation with Trenching and Coating. Water Saving Irrigation. 2018, 0(12): 38-43
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