用多元统计分析方法研究了佛坪自然保护区植物群落物种多样性及群落各生长型多样性特征沿海拔梯度的变化。结果表明:1) 植物群落的Shannon指数与Simpson指数及物种丰富度与海拔梯度均呈显著负相关关系;2) 乔木层的物种多样性沿海拔梯度的变化则体现了"中间高度膨胀"的规律,即中等海拔高度上多样性高而低海拔和高海拔多样性较低;3) 灌木层丰富度指数在1600~1700m之间有个很不明显的峰值,而其它4个指标沿海拔呈单调的下降趋势;4) 草本层植物多样性呈先降后升的趋势,在中等海拔高度较低。
The relationships between species diversity indices of plant in communities and altitude gradient of Foping National Reserve were studied using multiple regression analysis. The results are as follows: 1) The Shannon index, Simpson index and species richness of communities are negatively related to latitude significantly. 2) The species diversity of arbor layer showing a rule of "Mid-altitude bulge" with change of altitude, means that it is higher in intermediate altitude while lower in lower and higher altitude. 3) There is a no obvious peak value of species richness of shrub layer at Alt. 1600-1700m, while the other four diversity indices decreased monotonously with altitude. 4) All of the species diversity indices of herb layer are lower at intermediate altitude.
[1] 贺金生, 陈伟烈. 陆地植物群落物种多样性的梯度变化特征[J]. 生态学报, 1997,17(1): 91~99.
[2] 王献溥,刘玉凯. 生物多样性的理论与实践[M]. 北京: 中国环境科学出版社,1994. 60.
[3] 谢晋阳, 陈灵芝.暖温带落叶阔叶林的物种多样性特征[J]. 生态学报,1994,14 (4): 337~344.
[4] 岳明, 周虹霞. 太白山北坡落叶阔叶林物种多样性特征[J]. 云南植物研究, 1997, 19 (2): 171~176.
[5] 岳明. 秦岭及陕北辽东栎林群落物种多样性特征[J]. 西北植物学报, 1998, 18 (1): 124~131.
[6] 高贤明, 陈灵芝. 北京山区辽东栎林群落物种多样性的研究[J]. 植物生态学报, 1998, 22 (1): 22~32.
[7] 岳明, 任毅, 党高弟,等. 佛坪国家级自然保护区植物群落物种多样性特征[J]. 生物多样性, 1999, 7 (4): 263~269.
[8] 岳明, 佛坪自然保护区植被. 任毅(主编). 秦岭大熊猫栖息地植物. 西安: 陕西科技出版社, 1998. P341~410.
[9] 岳明, 党高弟, 雍立军. 佛坪国家级自然保护区植被基本特征[J]. 武汉植物学研究, 17 (1): 22~28.
[10] 马克平, 黄建辉, 于顺利,等. 北京东陵山地区植物群落物种多样性的研究[J]. 生态学报, 1995, 15 (3): 268~277.
[11] Hamilton A C, Perrott R A. A study of altitudinal zonation in the montane forest belt of Mt. Elgon, Kenya/Uganda[J]. Vegetatio, 1981, 45: 107-125.
[12] Itow S. Species turnover and diversity patterns along an elevation broad-leaved forest coenocline[J]. Journal of Vegetation Science, 1991, 2:477-484.
[13] Yoda K A. Preliminary survey of the forest vegetation of eastern Nepal [J]. J. Coll. Arts Sci. Chiba Univ.(Nat. Sci. Ser.). 1967, 5: 99-140.
[14] 陈明荣. 试论秦岭垂直温度带的划分[J]. 西北大学学报(自然科学版), 1992, 22 (4): 465~472.
[15] 赵景波, 岳明. 秦岭栎林的发育与气候[J]. 西安地质学院学报, 1996, (5): 24~29.
[16] Louks O L. 1970,Evolution of diversity, efficiency, and community stability[J]. Am. Zool.,10: 17-25.
[17] Peet R K. Forest vegetation of the Colorado,Front Range; Pattern of species diversity[J]. Vegetatio, 1978, 37: 65-78.
[18] Minchin P R. Montane vegetation of the Mt. Field massif, Tasmania: a test of some hypotheses about properties of community patterns[J]. Vegetatio, 1989, 83: 97-110.
[19] Wilson J B, Lee W G, Mark A F. Species diversity in relation to ultramafic substrate and to altitude in southwestern New Zealand[J]. Vegetatio, 1990, 86: 15-20.
