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针对梁茆顶光照强、风大、温度变化明显.纯林杨树、沙棘易形成“小老树”的特点,甘肃省堡子沟流域自80年代以来逐步开展了沙棘杨树、沙棘榆树混交种植,收到了明显的效果。试验表明,与纯林相比,混交林不仅对梁茆顶生态位有更强的适应性.而且生长迅速,单株生物量明显增加.土壤理化性质得到改善,肥力提高,降雨入渗量增大,水分利用率增高。
Beam top beam light strong, windy, temperature changes significantly. Pure forest poplar and seabuckthorn are easy to form the characteristic of “little old tree”. Since the 80’s, the Puzigou drainage basin in Gansu Province has gradually carried out mixed planting of seabuckthorn poplar and seabuckthorn elm trees, and has received obvious effect. Experiments show that, compared with the pure forest, mixed forest is not only more adaptable to the niche of the top of the Bentley ridge. And rapid growth, significantly increased biomass per plant. Soil physical and chemical properties have been improved, fertility increased, rainfall infiltration increased, increased water use efficiency.