延安试区刺槐林地在不同立地条件下土壤水分变化规律

Soil Water Changing of Artificial Robinia persudoscacia at Different Site Conditions in Yan'an Experimental Area

本文研究了延安研究区不同立地类型的刺槐林地土壤含水量的变化。研究表明,在延安研究区梢林区林地土壤含水量大于北边的森林草原区,不同坡向其含水量不同,阳坡土壤含水量小于阴坡,同一坡向不同部位含水量不同,坡下部土壤含水量高于坡上部,密度越大林地土壤含水量越小,刺槐林地土壤含水量低于荒坡,且刺槐比辽东栎消耗深层土壤水。

Soil water changing of artificial Robinia perseudoscacia at different site conditions Yan'an experimental area was studied. The results showed that the soil water was higher in south second ary forest than in north forest stepperbelt. The soil water was different at different hillsides in south of a hill the soil water was lower than in north of a hill. The soil water of different position is different in same hill that the lower of hill was higher than upperhill. The soil water of artificial Robinia persudoscacia was lower than wasteland,and use deeper water than that of Quercus liaotun gensis.