沙地樟子松人工林合理经营密度的研究  

Studies on suitable stand densities of Pinus sylvestris var. mongolica plantations in sandy area

作　　者：张日升[1] 肖巍[1] 于红军[1] 王国晨[1] 孙海红[1] 

机构地区：[1]辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《辽宁林业科技》2014年第4期12-15,共4页Liaoning Forestry Science and Technology

基　　金：国家林业公益性行业科研专项(201004063);中央财政林业科技推广示范资金项目([2012]04号)

摘　　要：通过调查不同密度的沙地樟子松人工林胸径、树高、蓄积、干形等生长指标和松枯梢病的发病情况等健康指标，分析了密度对樟子松人工林生长与健康的影响。综合分析得出：亚湿润干旱区樟子松人工林的造林密度可以控制在l250～2500株·hm-2；当樟子松人工林林龄达到21a时保留密度1000株·hm-2左右；当林龄31a时，密度控制为500株·hm-2左右。Based on the investigation of growth parameters such as DBH, height, volume and tnm.k form, and occurrence of Sphaero- sis shoot blight of Pinus sylw.stris vat. mongolica plantations at different densities in sandy area, the effects of the density on growth and health were analyzed. The results indicated it would be proper to plant Pinus sylvestris var. mongoliea in the dry sub-humid area at 1250 to 2500 trees per hectare, and retain about 1000 trees per hectare when the plantation was at the age of 21, and about 500 trees per hectare at the age of 31.

关 键 词：樟子松人工林 经营密度 沙地 

分 类 号：S753.3[农业科学—森林经理学]