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本文对影响陕北黄土陵沟壑区飞机播种造林种草效果的条件进行了研究。论证了种子萌发、幼苗抗寒、耐旱等生理生态特性是选择树种的生物学基础;选好播区是飞播造林成功的基本条件;而降水量和连阴雨天数的保证率是确定播期的主要依据。试验结果证明:油松、柠条、沙打旺飞播造林是成功的,是适宜陕北黄土高原地区飞播造林优良的树、草种。贤、曹淑定、吴钦孝、刘向东、侯庆春、李立、梁一民,李代琼、裴迪、王教才、金招寿、田梅霞等。陕西省林业勘察设计院:张建清、张二存、刘三友。延安地区林科所:左希民、霍正身、营随念。本文由周泽生执笔,内容论点由执笔人负责。
This paper studies the conditions affecting the sowing and planting of the aircraft in the loess hilly and gully area of northern Shaanxi Province. Demonstration of seed germination, seedling resistance to cold, drought and other physiological and ecological characteristics of the biological basis is the choice of species; selection of broadcast area is the basic conditions for the success of aerial seeding; and rainfall and even the number of rainy days is to determine the main sowing date in accordance with. The test results show that Pinus tabulaeformis, Caragana korshinskii and Astragalus polyphyllus are successful, which is a good tree and grass suitable for aerial seeding afforestation in Loess Plateau of northern Shaanxi. Yin, Cao Shuding, Wu Qinxiao, Liu Xiangdong, Hou Qingchun, Li Li, Liang Yimin, Li Daiqiong, Pei Di, Wang Jiacai, Jinzhao Shou, Tian Mei Xia and so on. Shaanxi Provincial Forestry Investigation and Design Institute: Zhang Jianqing, Zhang Ercun, Liu Sanyou. Yanan area Linke: Zuo Xi Min, Huo Zheng body, battalion read with. This article is written by Zhou Zesheng, the content argument by the writer responsible.