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Acta Prataculturae Sinica ›› 2016, Vol. 25 ›› Issue (7): 42-51.DOI: 10.11686/cyxb2015299

• Orignal Article • Previous Articles     Next Articles

Simulation and analysis of soil water retention curves within and between hedgerows in Northern China farm system

HE Xiu-Dao1, DANG Hong-Zhong2, *, WANG Li1, ZHOU Ze-Fu2, LV Wen-Qiang1   

  1. 1.College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;
    2.Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China
  • Received:2015-06-10 Revised:2015-08-24 Online:2016-07-20 Published:2016-07-20

Abstract: This study aimed to simulate soil water retention curves within and between hedgerows of farm systems in northern China by the Van Genuchten model. Typical hedgerow systems in regions of sandy, loess and black soils were selected for study. The soil texture, soil porosity, soil organic matter and soil water-stable aggregates within and between hedgerows were measured. It was found that the soil porosity, soil organic matter and soil water-stable aggregates within hedgerows in sandy and black soil areas were higher than those from between hedgerows; but this result was adverse in loess area. The soil moisture content within hedgerows was higher than that between hedgerows. The soil water holding capacities within and between hedgerows were lowest in sandy soils and highest in black soils. It was concluded that hedgerows can improve soil texture, structure and soil water retention, and make an important contribution to control of sheet erosion on sloping land.