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宁夏六盘山区自六十年代中期引进华北落叶松。该树种生长较快,育苗容易成功,造林成活率高,已成六盘山区的主要造林树种之一,深受广大群众的欢迎。为了切实弄清落叶松种和种源之间的差异及其在本地区的表现,最大限度地利用宁南山区自然地理资源,取得最好的造林效益,从而提供落叶松的最佳种和最佳种源,为发展落叶松生产奠定基础。并通过全国的协作,为统一划分落叶松种子调拨区提供科学依据。本试验在中国林科院林研所的主持下,经四年的工作,达到了苗期试验的予期目的,对种和种源的定植造林也已开始进行。
Liupanshan of Ningxia since the introduction of Larix principis-rupprechtii from the mid-1960s. The rapid growth of species, seedling easy success, afforestation survival rate has become one of the main afforestation species in Liupan Mountain, welcomed by the masses. In order to effectively understand the differences between larch species and provenances and their performance in the region, to maximize the natural geographical resources in the mountains of South Ningxia, to obtain the best afforestation benefits, so as to provide the best species and the most larch Good variety of sources, larch production for the development of the foundation. And through the national collaboration, to provide a scientific basis for the uniform division of larch seed allocation area. Under the auspices of the Forest Research Institute of the Chinese Academy of Forestry, this experiment reached the expected goal of the seedling experiment after four years of work. The planting and afforestation of species and provenance has also started.