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Study on Water and Salt Transport Characteristics for Gobi Soil Under Condition of Grape Drip Irrigation in Dry Region(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年19期
Page:
168-171
Research Field:
Publishing date:

Info

Title:
Study on Water and Salt Transport Characteristics for Gobi Soil Under Condition of Grape Drip Irrigation in Dry Region
Author(s):
SU Xue-de; LI Ming; GUO Shao-jie; LI Peng-cheng; JIANG Ji-yuan
Institute of Horticulture,Xinjiang Academy of Agricultural and Reclamation Scienc
Keywords:
grape; drip irrigation; Gobi soil; water-salt transport in soil
PACS:
S 663.106
DOI:
-
Abstract:
Taking 6-year-old grape as material,the different drip time of salt and water transport characteristics for Gobi soil under condition of grape drip irrigation were studied,and the Gobi soil water and salt,water and salt dynamics in the horizontal direction and vertical direction were analyzed.The results showed that soil horizontal and vertical direction of the Gobi drip irrigation water salt distribution with the drip irrigation time change Gobi soil moisture content and salinity of grapes were changed regularly.On the horizontal direction,soil moisture content changes obviously along with the change of radial distance,a maximum of soil moisture in drops below the head,and diminishing the center to the periphery,in turn,to drop；And salt as the drop time prolong the nearby the lowest soil salt content,the drop head along the peripheral salt content increases gradually,0～40 cm soil salt accumulation,most in 40～60 cm,salt accumulation in reducing state gradually.On the vertical direction,the maximum soil water content was on the surface,reach maximum 0～20 cm,with the increase of soil depth,soil moisture content began to decline；0～20 cm soil salinity water drops before the highest,salt accumulation was more,with the drip of the extension of time,the salt gradually reduced,20～60 cm minimum salt content.Under the condition of drip irrigation,soil water and salt Gobi was along the radial distribution regularity of the distribution of moisture was onions,salt distribution to the shape of onion peripheral extended.

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Last Update: 2014-11-26