论文部分内容阅读
兰州市北山造林绿化的难度很大,已为大家所公认。在四十年代初期,刘亚之同志吸取了国内外对干旱荒山的造林经验,并发挥了自己的智慧,在兰州市的北山——徐家山,进行整地、造林试验研究,他根据当地自然特点和林木分布生长发育的自然规律,采用了水平沟整地和用红柳、侧柏、自榆等耐旱树种造林、并结合许多旱地造林技术措施进行造林试验,经过近四十年的实践,证明他所采用的这些方法和措施基本上是成功的。现征得本人同意予已刊登,希望热爱干旱荒山造林绿化的同志们参考。——编者按
Afforestation in Beishan, Lanzhou City, a great difficulty, has been recognized by everyone. In the early 1940s, Comrade Liu Ya-ching drew on his experience in afforestation at arid and barren hills both at home and abroad and gave his own wisdom. He conducted site preparation and afforestation experiments in Beishan-Xujiashan, Lanzhou City. Based on the natural characteristics of the area and the trees Distribution of natural law of growth and development, the use of horizontal and tidy and with red willow, Platycladus orientalis, self-elm and other drought-resistant tree species afforestation, and combined with many afforestation techniques and measures for afforestation experiments, after nearly 40 years of practice, to prove that he used These methods and measures are basically successful. Now I have agreed to have been published, I hope love afforestation dry desert hills comrades reference. - Editor’s note