云南省飞播造林回顾

Review of Air Seeding for Afforestation in Yunnan Province

云南省飞播造林始于 196 0年 ,至 2 0 0 0年 ,经过了试验阶段、推广阶段、发展阶段、高科技阶段等 4个阶段 ,共在大理、楚雄、昆明、丽江、红河、玉溪、曲靖、昭通、文山、保山、临沧、思茅等 12个地州市 85个县市设置播区 980个累计作业面积 2 89346hm2 ,设计宜播面积 2 2 30 32 0hm2 ,保存面积 10 2 882 1hm2 ,保存率为4 6 13% ,相当于增加森林覆盖率 2 6 1个百分点。分析了飞播中存在的问题 。

Air seeding for afforestation in Yunnan province was started in 1960. Up to year 2000, it went through four phases of test, extension, development and high tech application. Eighty five counties belonging to 12 prefectures and cities in Yunnan were reforested by air seeding. The air seeding were carried out in 980 sites, 289 346hm 2 in total, 2 230 320 hm 2 is suitable for air seeding. It is estimated that 46 3%, 1 028 821 hm 2, afforestation are survived now. That means it could increase forest cover rate by 2 61%. The paper discussed the problems in air seeding and concluded ensuring measures.