湖南省低质低效马尾松次生林改造技术研究 Ⅰ低质低效成因、改造前景和改造试验设计

Studies of the Remoulding to the Low-quality and Low-effect Secondary Forests of Masson Pine ⅠThe Contributing Factors of Low-quality and Low-effect Forests, the Remoulding Vistas and the Remoulding Experiment Design

在湖南省茶陵县设置了低质低效马尾松次生林改造试验基地 ,面积为 10 hm2 .经详细调查分析 ,认为这种林分低质低效的成因主要有特殊的岩性、土壤条件、人为活动频繁和长期缺乏经营管理以及历史等 5个方面的原因 .设计采取的改造措施主要有 :补植造林 (包括间伐补植与不间伐补植实验、造林整地方式试验、补植施用基肥试验和植物材料筛选试验 ) ;林分密度调控 ;试验林施肥 ;封山育林等 .并进行了林分改造正交试验设计和为期 5

An experiment base for the remoulding to the low quality and low effect secondary forests of Masson Pine has been set up in Chaling County,Hunan Province,whose area is ten hectares.The forming causes of this kind of low quality and low effect forests are studied and analyzed in this paper,and its remoulding and management vistas are also approached.And finally the remoulding experiment design has been made and a five year located observation for the remoulding and management effects is to be carried out.