飞播生产若干基本技术问题的研究与思考

对陕西飞播生产过程中若干基本技术问题进行了讨论,阐述了飞播的基本原理、飞播区、树种及种子、飞播作业、成效等内容。认为飞播属于人工促进的自然恢复方式,其实质就是通过种群演替实现群落演替。播区范围的确定应以地类的适播性为前提,选地适播。在群落学层次上,建群种或优势种是确定飞播树种的先决条件。对于种子质量,不仅仅只是播种质量,还需要注意种源质量。飞播作业的核心在于适时、准确落种。飞播成效上,飞播树种的成苗、成林效果是基本。同时,文中也论述了飞播生产中存在的技术偏差和误区,以及需要进一步研究和关注的技术问题。建议飞播在工程理念上应理性回归。

Basic Technique Problems of the Aerial Seeding Production in Shaanxi Province

Basic technique problems of the aerial seeding production in Shaanxi Province were discussed regarding the basic principle of aerial seeding, aerial sown area, tree species and seed, flight opera- tion, aerial seeding effects etc. The afforestation by aerial seeding is a natural restoration mode that is actually a process achieved by artificial force from population succession to community succession. So- wing area will be dependent on the characteristics of land type suitable for sowing. At coenology lev- el, selecting tree species depends on dominant species or constructive species. Selection of aerial seeds must concern about seed quality and seed source. The focus of aerial seeding operation is on the selec- tion of suitable season and accurate place for seeding. The purpose of aerial seeding is that seeds ger- minate into seedlings and then become trees.