title: [Three-dimension temporal and spatial dynamics of soil water for the artificial vegetation in the center of Taklimakan desert under saline water drip-irrigation].
abstract: Three-dimension temporal and spatial dynamics of the soil water characteristics during four irrigating cycles of months from April to July for the artificial vegetation in the center of Taklimakan Desert under saline water drip-irrigation had been analyzed by timely measuring the soil water content in horizontal and vertical distances 60 cm and 120 cm away from the irrigating drips, respectively. Periodic spatial and temporal variations of soil water content were observed. When the precipitation effect was not considered, there were no significant differences in the characteristics of soil water among the irrigation intervals in different months, while discrepancies were obvious in the temporal and spatial changes of soil moisture content under the conditions of rainfall and non-rainfall. When it referred to the temporal changes of soil water, it was a little higher in April but a bit lower in July, and the soil water content in June was the highest among four months because some remarkable events of precipitation happened in this month. However, as a whole, the content of soil moisture was reduced as months (from April to July) went on and it took a decreasing tendency along with days (1-15 d) following a power function. Meanwhile, the characteristics of soil water content displayed three changeable stages in an irrigation interval. When it referred to the spatial distributions of soil water, the average content of soil moisture was reduced along with the horizontal distance following a linear regression function, and varied with double peaks along with the vertical distance. In addition, the spatial distribution characteristics of the soil water were not influenced by the factors of precipitation and irrigating time but the physical properties of soil.
authors.forename: Xin-yuan
authors.initials: XY
authors.lastname: Ding
authors.forename: Zhi-bin
authors.initials: ZB
authors.lastname: Zhou
authors.forename: Xin-wen
authors.initials: XW
authors.lastname: Xu
authors.forename: Jia-qiang
authors.initials: JQ
authors.lastname: Lei
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Lu
authors.forename: Xue-xi
authors.initials: XX
authors.lastname: Ma
authors.forename: Xiao
authors.initials: X
authors.lastname: Feng
mesh_terms: D057914:Agricultural Irrigation; D002681:China; D003889:Desert Climate; D000068357:Saline Waters; D012621:Seasons; D012965:Sodium Chloride; D012987:Soil / Q000737:chemistry*; D014867:Water / Q000032:analysis*
chemical_list: D012987:Soil; D014867:Water; D012965:Sodium Chloride