安徽农业科学2011，Vol.39Issue(13)：7757-7760,4.
川西高山松林火烧迹地天然更新研究
Studies on Natural Regeneration of Pinus densata in Burned Forestlands in Western Sichuan Province
摘要
Abstract
[ Objective ] The aim was to study the natural regeneration of Pinus densata in burned forestlands in Western Sichuan Province.[ Method ] Natural regenerations of Pinus den sata in burned forestlands in Western Sichuan Province at different ages were investigated through the method of space sequence instead of time sequence. [ Result] The natural regeneration of Pinus densata was better than the other species;generally a large amount of seedlings emerged during the first post-fire year; and the fire of appropriate frequency and low intensity was helpful the stabilization and maintaining of pure forests of Pinus densat a, mainly because Pinus densata was distribution on northern and eastern slopes. The natural regeneration of shrub- Pinus densata forests in the burned areas were better; the herb- Pinus densata forests took second place; and the Quercus aquifolioides- Pinus densata forests were the worst. The natural regeneration of Pinus densata forests in the burned areas at an elevation from 2 800 to 3 600 m restore were well, while the seedlings density in the burned forestlands at an elevation of above 4 000 m was small. The natural regeneration of Pinus densata forests on northern and eastern slopes in burned areas was better than that on southern slopes, mainly because the changeable range of environmental conditions like temperature and humidity would directly affect the survival rate of renewal seedlings. [ Conclusion] The research provides theoretical basis for accelerating local vegetation restoration, improving environment and constructing the Changjiang river headwaters ecological barrier.关键词
高山松/天然更新/火烧迹地/川西Key words
Pinus densata/ Natural regeneration/ Burned areas/ Western Sichuan分类
农业科技引用本文复制引用
王玉涛,马钦彦,侯广维..川西高山松林火烧迹地天然更新研究[J].安徽农业科学,2011,39(13):7757-7760,4.基金项目
国家自然科学基金重点资助项目(39899370) （39899370）
四川省林业科技重点攻关项目(2001-01). （2001-01）
