榆林沙区飞播试验中几个技术问题的探讨

本项试验于1974-1981年,在陕西省榆林地区流沙地上进行。本文就飞播固沙植物种选择、飞播种子处理技术、植物群体固沙的原理及飞播量的计算,飞播立地条件的选择,鼠、兔、虫、病害的防治,飞播造林的投资及效益估算等项技术予以了较深入地探讨,为推广榆林飞播治沙的经验提供理论依据。

Techniques of experiment of Air-seeding in the Sandy Area in Yulin

The experiment of air-seeding described in the study Was conducted in the shifting sand areas in Yulin Prefecture, Shaanxi proivnce from 1974-1981. The sellection of sand-holding species for air-seeding, the techniques for Preceeding seeds, the Principles for stablizing sand by plant community, the calcuation of quantity for air-seerding, the sellection of environment and sites for air-seeding, the preven tion of the Problems of rodent, rabbit and insect Pest, the assess ment of the investment and the economic ciiects of the air-seeding project and others are presented and discussed detailly in the study. This report provides some expriences and theoretical evidences for the extension of the experiment of sand stablization by air-seeding in Yulin, Shaanxi province.