结果表明：（1）沙棘林中中龄林土壤肥力质量最高，过熟林较低，幼林最低；
It showed that:(1) soil fertility quality of the middle age hippopHae rhamnoides was highest, the overriping was the second and, the sapling was the lowest;
辽宁省建平县拥有世界上最大的人工沙棘林，受沙棘木蠹蛾的危害较为严重，给当地的沙棘产品加工业造成毁灭性打击。
In Jianping county, Liaoning province, there are the largest artificial seabuckthorn forests in the world, which have suffered the destructive impact from H. hippophaecolus.
试验结果为沙棘能源林栽培技术和轮伐期的确定、为不同林龄果实加工利用的优劣状况提供了理论依据。
The results provide theoretical basis for seabuckthorn energy forest cultivation technique, determination of rotation cutting period and fruit of different ages processing and utilization.
研究结论如下： 沙棘是一个良好的人工林天然化灌木物种，在黄土丘陵区该种群更新良好。
Hippophae rhamnoide is a nicer shrub species for plantation becoming savageness. This population could renew very well in Hilly-gully region of Loess plateau.
沙棘及其混交林对土壤水分的利用强度相似，林地存在土壤干层现象。
Seabuckthorn and its mixed stands have similar intensity of soil water use, and there was a soil dry layer phenomenon in their stands.
沙棘及其混交林对土壤水分的利用强度相似，林地存在土壤干层现象。
Seabuckthorn and its mixed stands have similar intensity of soil water use, and there was a soil dry layer phenomenon in their stands.
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