山西霍山自然保护区核桃楸种群结构与动态研究
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摘要
利用生存分析理论,分析了山西霍山自然保护区核桃楸种群的径级结构以及树高与胸径的关系,绘制了静态生命表和存活曲线。结果表明,种群中龄个体数相对稳定,但幼龄个体数不足,更新和发展受到限制;对核桃楸种群胸径与树高进行研究拟合分析可知,直线拟合与对数拟合均能反映核桃楸种群胸径与树高的生长动态关系,但是对数拟合比直线拟合的相关系数大;生命表分析结果显示,核桃楸种群存活曲线呈DeeveyⅠ型,生存与发展面临较大压力。
Using the plant survivorship theory, the size structure and the relationship between tree height and diameter(DBH)of Juglans mandshurica population in Huoshan Mountains nature reserve were analyzed, and the static life table was compiled and the survival curve was plotted. The results showed that the number of medium diameter individuals in the population was relatively stable, but seedlings were insufficient, renewal and development were limited. According to the fitting of DBH and tree height, both linear fitting and logarithmic fitting reflected the growth dynamic relationship between DBH and tree height, but the correlation coefficient of logarithmic fitting was larger than that of linear fitting. Life table analysis showed that Juglans mandshurica population survival curve was DeeveyⅠtype, and survival and development faced great pressure.
Using the plant survivorship theory, the size structure and the relationship between tree height and diameter(DBH)of Juglans mandshurica population in Huoshan Mountains nature reserve were analyzed, and the static life table was compiled and the survival curve was plotted. The results showed that the number of medium diameter individuals in the population was relatively stable, but seedlings were insufficient, renewal and development were limited. According to the fitting of DBH and tree height, both linear fitting and logarithmic fitting reflected the growth dynamic relationship between DBH and tree height, but the correlation coefficient of logarithmic fitting was larger than that of linear fitting. Life table analysis showed that Juglans mandshurica population survival curve was DeeveyⅠtype, and survival and development faced great pressure.
引文
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[3]张胜利,王晓江,胡尔查,等.乌拉山自然保护区不同森林群落土壤化学性质的比较研究[J].内蒙古林业科技,2011,37(1):1-4,13.
[4]张婕,上官铁梁,段毅豪,等.灵空山辽东栎种群年龄结构与动态[J].应用生态学报,2014,25(11):3125-3130.
[5]蔡飞.杭州西湖山区青冈种群结构和动态的研究[J].林业科学,2000,36(3):67-72.
[6] KNOWLES P,GRANT M C. Age and size structure analysis of een-gelmann spruce,population ponderosa pine,loadgepole pine,and limber pine in Cororado[J]. Ecology,1983,64:1-9.
[7]PARKER A J,PEET R K. Size and age structure of conifer forest[J].Ecology,1984,65:1685-1689.
[8] CROW T R. Population dynamics and growth patterns for a cohort ofnorthern red oak(Quercus rubra)seedlings[J]. Oecologia,1992,91:192-200.
[9] NYLAND R D,RAY D G,YANAI R D. Height development ofupper-canopy trees within even-aged Adirondack Northern Hardwood stands[J]. North J Appl For,2004,21(3):117-122.
[10]江洪.云杉种群生态学[M].北京:中国林业出版社,1992:7-139.
[11]吴明作,刘玉萃.栓皮栎种群数量动态的谱分析与稳定性[J].生态学杂志,2000,19(4):23-26.
[12]李晓丽,毕润成,张钦弟,等.山西灵丘天然青檀种群数量动态[J].生态科学,2013,32(5):609-615.
[13]刘金福,洪伟.格氏栲种群数量动态的谱分析研究[J].生物数学学报,2003,18(3):357-363.
[14]康华靖,陈子林,刘鹏,等.大盘山自然保护区香果树种群结构与分布格局[J].生态学报,2007,27(1):389-396.
[15]李辛雷.杜鹃红山茶遗传多样性及其濒危机制[D].北京:中国林业科学研究院,2012.
[16]马万里.核桃楸的种子库和种子雨的动态研究[J].北京林业大学学报,2001,25(3):290-295.