【摘要】 根据大青山独特的自然、社会、经济状况和不同群落类型的分布特点及多年来封山育林研究的成效,提出了大青山生态脆弱带封山育林的4种模式:天然白桦次生林封山育林、中山区水源涵养林封山育林、中低山区水土保持林封山育林、干旱阳坡封山育林育草,为在大青山地区实施封山育林提供技术依据。更多还原

【Abstract】 According to the unique condition of nature,society and economy,distribution feature of different type of plant community and the result of closing hillsides for afforestation in several years in Daqing mountains area, four models of closing hillsides for afforestation are put forward in fragile ecological zone in Daqing mountains area in order to provide technique basis,which are model of closing hillsides for afforestation of natural second birch forest,model of forest for conservation of water supply in middle of mountains,model of forest for water and soil protection in middle and low of mountains,and model of arid southern slope area.更多还原