Variations in N iche Breadth of Dominant Plant Populations along anAltitudinalGradient in Shikengkong of Guangdong Province

ZHANG Lu; SU Zhi-yao; CHEN Bei-guang; LI Zhen-kui

A horizonta l transect ( 10 m × 120m ) w as placed at 100m a lt itudina l interval from an elevat ion o f 300mto 1 900m a. s. .lin Shikengkong. Canon ical CorrespondenceA na lysis ( CCA ) and One-way ANOVA w ere used todetect a ltitudina l patterns of niche and its env ironmental corre lates. The results w ere as fo llow s: 1) Dom inant plantpopu lations had the biggest n iche breadth w ith th ickness o f humus layer as the resource state, w hich had the sma l-lest n iche breadth w ith slope as the resource state in Shikengkong; 2) One-w ay ANOVA and Tukey?? sHSD show edniche breadth of dom inant popu lations d id not change sign if icantly in the evergreen broad-leaved fo rest (P > 0. 05) ,w hile niche breadth of dom inant popu lat ions in the coniferous and broad-leavedm ixed forest and themontane broad-leaved and elfin forest change sign if icantly (P < 0. 001); 3) Canonical Correspondence Analysis ind icated that as-pect and litterfallw ere correlated w ith CCA axes 1 and axes 2. Dom inant popu lations had d ifferent niche breadth asdifferent resource states. Compared w ith n iche breadth, CCA could ind icate niche and its env ironmen tal corre latesin Sh ikengkong.

1. College of Forestry, Sou th Ch ina Agricu ltu ralUn ivers ity, Guangzhou?? 510642, Gu angdong, Ch in a

Received Date: 2006-12-26

Abstract: A horizonta l transect ( 10 m × 120m ) w as placed at 100m a lt itudina l interval from an elevat ion o f 300mto 1 900m a. s. .lin Shikengkong. Canon ical CorrespondenceA na lysis ( CCA ) and One-way ANOVA w ere used todetect a ltitudina l patterns of niche and its env ironmental corre lates. The results w ere as fo llow s: 1) Dom inant plantpopu lations had the biggest n iche breadth w ith th ickness o f humus layer as the resource state, w hich had the sma l-lest n iche breadth w ith slope as the resource state in Shikengkong; 2) One-w ay ANOVA and Tukey?? sHSD show edniche breadth of dom inant popu lations d id not change sign if icantly in the evergreen broad-leaved fo rest (P > 0. 05) ,w hile niche breadth of dom inant popu lat ions in the coniferous and broad-leavedm ixed forest and themontane broad-leaved and elfin forest change sign if icantly (P < 0. 001); 3) Canonical Correspondence Analysis ind icated that as-pect and litterfallw ere correlated w ith CCA axes 1 and axes 2. Dom inant popu lations had d ifferent niche breadth asdifferent resource states. Compared w ith n iche breadth, CCA could ind icate niche and its env ironmen tal corre latesin Sh ikengkong.

HTML

Reference (21)

[1]	尚玉昌. 现代生态学中的生态位理论[J] . 生态学进展, 1988, 5( 2 ): 77 ~ 84
[2]	S ilvertow n JW. P lan ts in lim estone pavem en ts: tests of species interact ion and n iche separat ion [J] . J Eco,l 1983, 71: 819~ 828
[3]	广东省科学家南岭森林生态考察团. 广东省南岭森林生态考察报告[J] . 生态科学, 1993, ( 1 ) : 3~ 13
[4]	黄少敏, 龙志强, 张金泉. 广东南岭自然保护区地貌[A] . 见: 庞雄飞. 广东南岭国家级自然保护区生物多样性研究[C] . 广州:广东科技出版社, 2003: 14 ~ 27
[5]	张金泉. 广东省自然保护区[M]. 广州: 广东省旅游出版社,1997: 255~ 258
[6]	中国植被编辑委员会. 中国植被[M] . 北京: 科学出版社, 1980
[7]	苏志尧, 吴大荣, 陈北光. 粤北天然林优势种群生态位研究[J] .应用生态学报, 2003, 14 ( 1 ): 25 ~ 29
[8]	M cCun e B, M effordM J. PC－ORD. M u ltivariateAnalys is of Eco log ical Data, V ersion 4. 20 [CP /DK] . G leneden B each: M Mj SoftwareDesign. 1999
[9]	S tatsoft In c. STATIST ICA forW indow s ( C ompu ter ProgramM anua l)[CP /DK]. Tu lsa: S tatsoft, Inc. 1997
[10]	王刚, 赵松岭, 张鹏云, 等. 关于生态位定义的探讨及生态位重叠计测公式改进的研究[J]. 生态学报, 1984, 4 ( 2 ) : 119~ 127
[11]	李意德. 海南岛尖峰岭热带山地雨林主要种群生态位特征研究[J] . 林业科学研究, 1994, 71 ( 1) : 78 ~ 85
[12]	杨远兵, 刘玉成, 钟章成. 重庆缙云山不同龄级植物种群生态位宽度研究[J] . 西南师范大学学报, 2001, 26 ( 1 ) : 51 ~ 56
[13]	张远东, 潘晓玲, 顾峰雪, 等. 阜康荒漠植被灌木与半灌木种群生态位的研究[J] . 植物生态学报, 2001, 25 ( 6 ) : 741 ~ 745
[14]	郑元润. 大青沟森林植物群落主要木本植物生态位研究[J] .植物生态学报, 1999, 23 ( 5 ) : 475 ~ 479
[15]	刘加珍, 陈亚宁, 张元明. 塔里木河中游植物种群在四种环境梯度上的生态位特征[J] . 应用生态学报, 2004, 15 ( 4 ) : 549~ 555
[16]	沈泽昊, 方精云. 基于种群分布地形格局的两种水青冈生态位比较研究[J] . 植物生态学报, 2001, 25 ( 4 ): 392 ~ 398
[17]	郭水良. 浙江金华北山木本植物种群生态位研究[J] . 植物研究, 1998, 18 ( 3 ) : 311 ~ 320
[18]	Palm erM W. Put ting th ings in even better order: th e advan tages ofcanon ical correspondence analys is [J]. Ecology, 1993, 74: 2 215~ 2 230
[19]	M akarenkovV, Legendre P. Non lin ear redundancy analys is and canon ical correspondence analys is based on polynom ial regression[J] . Eco logy, 2001, 83: 1 146~ 1 161
[20]	王伯荪, 张炜银, 张军丽. 海南岛热带山地雨林种类组成的局域分布与垂直分布[J] . 应用生态学报, 2001, 12 ( 5 ) : 641~ 647
[21]	Stevens G C. The elevat ion al grad ient in alt itud inal range: an exten sion of Rapoport－s lat itud inal ru le to a lt itude [J] . Am ericanNatu ralist, 1992, 140: 893~ 911

Variations in N iche Breadth of Dominant Plant Populations along anAltitudinalGradient in Shikengkong of Guangdong Province

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views