砒砂岩区不同立地条件下沙棘根系发育状况研究

Studies on root system development situation of seabuckthorn under different site conditions in soft sandstone region

对内蒙古自治区鄂尔多斯市砒砂岩区8年生不同立地条件人工沙棘林的根系特征进行了初步研究。结果表明,沙棘的根系主要分布在0～60cm的土层中,其中0～20cm土层中的根系数量和生物量最大,生长在沟底和阴坡的沙棘根系生物量和数量最大,半阳坡最小。

Preliminary studies has been conducted on the features of root system of eight-year old seabuckthorn under different site conditions of soft sandstone region in Ordos of Inner Mongolia Autonomous Region.The results indicate that the root system are mainly distributed in 0~60cm soil layers,and the biggest amount and biomass are placed at 0~20cm layer,with the biggest at the bottom of the ditch and the shady slope,and smallest in the hillside facing the sun.