沿黄灌溉盐渍区杜仲引种的研究

杜仲是原产于我国中亚热带至暖温带的珍稀特有经济树种,并具有潜在的抗盐特性。通过近5年引种栽培试验,采取低穴种植、增大种植密度、套种绿肥植物等避盐种植技术措施,在沿黄灌溉盐渍区兰州试验地引种杜仲获得成功,为盐渍化土地生物治理与经济开发提供了一个发展前景广阔的经济树种。

Introduction of Eucommia ulmoides in saline soil of irrigation area along the Yellow River

Eucommia ulmoides Oliv., a rare cash tree species endemic to the central subtropical and warm temperate zone of China, has potential salinity resistance. Through the experiment of introduction and cultivation in the last five years, by means of some salt-avoiding planting techniques such as low-pit-planting, higher-density-planting and intercropping with green mature crop, etc, the tree species, from Liangdang County as one of its native place, has been successfully introduced into the saline site of the Lanzhou experimental plot of irrigation area along the Yellow River. Thereby the experimental study provided the biological control and economical utilization of the saline soil with one of cash tree species in a broad developmental prospects.