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在干旱的宁夏南部山区对水平沟 (885 42 )、鱼鳞坑、带子田 3种整地方式上的仁用杏幼树园的土壤水分、养分进行了测定 ,结果表明 :水平沟和鱼鳞坑的蓄水能力明显高于带子田 ,且不同整地对土壤养分中的全N、全P、有机质的含量有影响。综合比较 ,水平沟整地 ,其养分含量高 ,地上部幼树的生长量也最大。对幼树根系剖面的观察表明 :水平沟整地幼树的根系最多 ,且垂直根系分布深 ;带子田的根系水平分布较广 ,水平根最远。建议干旱山区发展仁用杏 ,以水平沟整地为主要模式
The soil moisture and nutrients of the apricot apricot sapling on the horizontal ditch (885 42), fish-scale pit and belt-zoned soil in the arid mountainous area of southern Ningxia were measured. The results showed that: Water capacity was significantly higher than that of Ziziyan, and different site preparation affected the contents of total N, total P and organic matter in soil nutrients. Comprehensive comparison, the horizontal ditch, its nutrient content is high, the growth of saplings on the ground is also the largest. Root saplings of young saplings showed that the root system of the saplings was the most in the horizontal ditch and the vertical root system was deep. The roots of the saplings were distributed widely and the horizontal roots were the farthest. Proposed apricot apricot in arid mountainous areas, with horizontal ditch as the main mode