摘要
采用种群生存分析方法,对山西霍山辽东栎林的种群结构和动态进行了研究。结果表明,该地区辽东栎种群属于增长型种群,其种群密度、平均胸径、最大胸径在海拔梯度上均具有鲜明的两段式分布特点;辽东栎在幼苗阶段要经过严格的环境筛选,成体后则随龄级的增加,生存能力逐渐衰退,属于严格的DeeveyⅡ型曲线。
Population structure and dynamic of Quercus liaotungensis in Huoshan mountain of Shanxi Province were analyzed by using population survival analysis. The results showed that Q. liaotungensis populations were growth-ori- ented population in this region. Population density, the mean diameter at breast height （DBH） and the maximum DBH have two variation range along the altitudinal gradient. Q. Liaotungensis population had a higher environmen- tal resistance at young stage, and it grew stably at mature stage and declined at old stage. The survival curve was typical Deevey Ⅱ type.
出处
《西部林业科学》
CAS
2015年第4期130-136,共7页
Journal of West China Forestry Science
基金
山西省化学优势重点学科建设生态化学子项目(912019)
山西省青年科技研究基金项目(2013021030-3)
山西师范大学校科学研究基金(ZR1218)项目
山西师范大学生命学院科学研究基金项目(SMYKZ-19)资助
关键词
辽东栎
种群结构
种群动态分析
霍山
Quercus liaotungensis
population structure
population dynamic analysis
Huoshan Mountain
