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沙木蓼(Atraphaxis bracteat A. Los.)在甘肃民勤沙区的引种造林已有多年,实践表明它确是较好的固沙树种,今后在河西走廊其它沙区及西北自然条件类似地区都可选用。本文浅议其在民勤沙区的适应表现及固沙造林的关键技术诸问题。一.沙木蓼在民勤沙区的引种概况沙木蓼在我国,从东北的大兴安岭到新疆的额尔齐斯河流域均见生长,水平分布大致在东经80—125°、北纬35—47°之间。依民勤沙区所处的地理位置与植物区系,是有木蓼天然分布,但实际调查数量不多,因此,最初试验用种苗多采自其数量较多的宁夏中卫、盐池二
Atraphaxis bracteat A. Los. Has been introduced for a long time in the Minqin Sandy Area of Gansu Province. Practice has shown that it is indeed a good sand-fixing species. In the future, other sand areas in the Hexi Corridor and similar natural areas in the northwest may be Use. This article discusses its adaptation performance in Minqin Sandy Land and the key technologies of sand fixation and afforestation. I. Introduction of Polygonum orientale in Minqin Sandy Region In our country, Polygonum orientale grows from the Daxinganling in the northeast to the Irtysh River basin in Xinjiang. The horizontal distribution is about 80-125 ° E and 35-47 N between. According to the geographic location and flora of Minqin Sandy Area, there is a natural distribution of Polygonum orientale, but the actual number of surveys is not large. Therefore, the initial test seedlings are mostly collected from Ningxia Zhongwei and Yanchi II