金佛山方竹对亮叶水青冈幼树种群数量结构的影响  

Effect of Chimonobambusa utilis on the Number of Saplings of Fagus lucida Population

作　　者：谢佩耘 何跃军[1] 高明浪 蒋长洪[1] 杨应[1] 司建朋 吴春玉[1] XIE Pei-yun;HE Yue-jun;GAO Ming-lang;JIANG Chang-hong;YANG Ying;SI Jian-peng;WU Chun-yu(College of Forestry, Guizhou University, Guiyang 550025, China;Kuankuoshui National Nature Reserve Administration in Guizhou Province, Suiyang 563300, Guizhou, China)

机构地区：[1]贵州大学林学院,贵阳550025 [2]贵州省宽阔水国家级自然保护区管理局,贵州绥阳563300

出　　处：《热带亚热带植物学报》2017年第3期225-232,共8页Journal of Tropical and Subtropical Botany

基　　金：国家环保部生物多样性保护专项(kksbdyj02);国家自然科学基金项目(31360106;31660156);贵州省农业攻关项目(NY[2014]3029号);贵州省优秀青年科技人才专项基金[2013(10)];贵州省科技计划项目([2016]2805);贵州省生态学重点学科建设项目(ZDXK[2016]7)~~

摘　　要：为探索贵州省宽阔水保护区亮叶水青冈(Fagus lucida)种群的更新维持机制,采用样方法研究金佛山方竹(Chimonobambusa utilis)对亮叶水青冈种群数量结构的影响。结果表明,较高的金佛山方竹密度降低了亮叶水青冈种群数量,亮叶水青冈株数随径级和高度级增加都呈现递减趋势;金佛山方竹密度增加有利于亮叶水青冈小径级向中径级个体的转化,而方竹密度减少则有利于中径级向大径级个体的转化;金佛山方竹密度增大降低了亮叶水青冈种群平均胸径,但增加了平均高度。这表明金佛山方竹能够影响亮叶水青冈个体数量和形态建成,亮叶水青冈通过降低胸径和增加高度来适应竹丛环境。In order to understand the regeneration mechanism of Fagus lucida forest in Kuankuoshui Nature Reserve,Guizhou,the effect of Chimonobambusa utilis on population structure of F.lucida was studied by quadrat method.The results showed that the high density of C.utilis reduced the number of F.lucida population,the number of F.lucida showed decline trend along increment of diameter and height classes.The density increase of was in favor of F.lucida saplings from small diameter class to middle diameter class,which decline was good for saplings from middle diameter class to big diameter class.The high density of C.utilis reduced mean DBH(diameter at breast height)of F.lucida saplings,and increased mean height.Therefore,C.utilis could affect the quantitative structure and morphogenesis of F.lucida saplings,while F.lucida adapted to C.utilis clump environment by reducing DBH and increasing height.

关 键 词：亮叶水青冈 金佛山方竹 种群 数量结构 贵州省宽阔水国家级自然保护区 

分 类 号：S718.5[农业科学—林学]