Effects of Micro Rainfall Collection by Ridging on Soil Water Distribution in Apple Orchard of Weibei Tableland
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    Abstract:

    By taking apple trees in full fruit period in an orchard of the Weibei Tableland as the research object,the temporal variation and spatial distribution of soil water content in a 600cm soil profile were studiedusing the technique of micro rainfall collection by surface ridging.Results showed that using the technique,average annual soil water storage increased to 1 537.9mm,9.99%higher than that of the control(clean tillage).Soil water storage presented the curve trend with double peaks that reached 1 616.2mm in Septemberand 1 665.2mm in February.The technique enabled soil water content in the profile to increase.With increased soil depth,the spatial distribution of soil water in the profile presented a wavy decline-rise-declinetendency and water conservation changed from high to low and then increased which may effectively relievethe desiccation of deeper soil layer in orchard and is of benefit to the sustainable development of orchard ecosystem.The technique could enhance water use efficiency,raise apple yield,and improve apple quality.Inconclusion,taking advantage of rainfall collected by ridging and film and water conservation functions of surface ridging and furrow covering,the technique can significantly increase rainfall use efficiency,improve thewater conditions of apple orchard and maintain the stability of the orchard ecosystem.

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揣峻峰,谢永生,索改弟,杨亚利.地表起垄微聚流技术对渭北果园土壤水分分布的影响[J].水土保持通报英文版,2013,(2):187-192

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History
  • Received:October 15,2012
  • Revised:December 25,2012
  • Adopted:
  • Online: November 12,2014
  • Published: