太原东山林场油松人工林物种多样性研究  

Study on Species Diversity of Pinus tabulaeformis Carr. Plantation in the East Mountains Forest Farm of Taiyuan City

作　　者：范伟伟[1,2] 张先平[2,3] 王孟本[2] 

机构地区：[1]山西水利职业技术学院,山西运城044004 [2]山西大学黄土高原研究所,山西太原030006 [3]山西林业职业技术学院,山西太原030009

出　　处：《山西农业科学》2016年第12期1818-1821,1886,共5页Journal of Shanxi Agricultural Sciences

摘　　要：应用TWINSPAN将40个样地进行分类,分为10个群丛,使用丰富度指数、物种多样性指数和均匀度指数研究油松人工林群落类型、群落结构。结果表明,10个群丛的物种丰富度指数、多样性指数和均匀度指数的变化趋势基本一致,且较好地反映出群丛的差异受人工林所处生境影响;群丛结构方面,丰富度指数和多样性指数大小为灌木层>草本层(大多数群丛),优势度指数和均匀度指数大小为草本层>灌木层。结合油松人工林所处生境综合分析得出,人工林的演替更新不仅可以丰富物种组成,还可改善林下生境,及时抚育可以促进林下油松幼苗的自然更新。研究人工林群落类型、结构和演替更新情况可为油松人工林的精细抚育与合理经营提供依据。Using TWINSPAN, 40 Pinus tabulaeformis plantation quadrats were classified into 10 association groups. The community type and community structure were studied by using the richness index, the Shannon index, the Simpson index and the evenness index. The result showed that the change trend of the richness index, the Shannon index and the evenness index of 10 association groups was similar, these indexes could reflect the difference from the habitat of Pinus tabulaeformis plantation. In community structure, the richness index and the Shannon index of most shrub layers were more than the grass layers, but the reverse trend in the change of the Simpson index and the evenness. The community succession was comprehensively analyzed with these indexs and the habitat. The succession of Pinus tabulaeformis plantation could not only enrich species, but also improve the forest habitat of Pinus tabulaeformis plantation. Timely tending could stimulate natural regeneration of Chinese pine seeding. The study of the community type,community structure and the community succession of the East Mountains Forest Farm could provide the references for fine tending and reasonable management.

关 键 词：油松人工林 物种多样性 演替 东山林场 

分 类 号：S791.254[农业科学—林木遗传育种]