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为丰富宁夏的造林树种 ,提高经济效益 ,实现宁夏树种、林种多样性 ,从 1994年开始白蜡嫁接水曲柳试验研究 ,经过多年的精心研究 ,已臻于完善 ,某些研究具有新的突破和创新 ,对缓解水曲柳资源危机 ,加速林业建设具有重要意义 ,在宁夏乃至我国“三北”地区有灌溉条件及降水量在4
In order to enrich afforestation tree species in Ningxia, improve economic benefits and achieve species and species diversity in Ningxia, the experimental study on ash graft of ash from 1994 has been perfected after many years of meticulous research and some breakthroughs have been made in some researches And innovation, to ease the crisis of ash resources, accelerate the construction of forestry is of great significance in Ningxia and even China’s “Three Norths” region with irrigation conditions and precipitation in 4