A Study on Spatial Variability of Surface Soil Moisture of Sand Dune after the Reconstruction in Spring

MAO Jing1,2,XIONG Hei-gang2,3,LU Kui-feng1,2,XIA Qian-rou1,2(1.College of Resources and Environment Science,Xinjiang University,Urumqi 830046,China;2.Key Laboratory of Oasis Ecology,Ministry of Education,Urumqi 830046,China;3.College of Applied Liberal Arts and Science,Beijing Union University,Beijing 100083,China)

sand dune after the reconstruction;different soil type;soil moisture;spatial variability

【Objective and Method】The reformed sand dune and six land types of field measurement data were used to conduct comparison and analysis of the spring surface soil moisture special variation characteristics to provide reference for resisting wind and stabiliting sand engineering and establishing vegetation in desert.【Result】Results show that:there were 3 obvious characteristics which were different from dune soil,after reforming with planting sacsaoul on sand.(1)The average value was greater than dune,soil moisture content was close to meadow;(2)The model of soil moisture semi-variance function expressed as index model that was completely from spherical model of dune sand moisture and the range smaller than spacing between samples with significant relation;(3)The constant value line map of soil moisture showed it was dense and band state distribution is in the same direction of sacsaoul forest band.【Conclusion】The results showed that Qitai county since 2000 has made greater achievement in prevent and control desertification.