暖温带森林优势种群的地形生境变异性

生态学杂志

暖温带森林优势种群的地形生境变异性

刘海丰^1,2,桑卫国²,薛达元^1**

(¹中央民族大学生命与环境科学学院，北京 100081； ²中国科学院植物研究所植被与环境变化国家重点实验室， 北京 100093)

出版日期:2013-04-10 发布日期:2013-04-10

Topographical habitat variability of dominant species populations in a warm temperate forest.

LIU Hai-feng^1,2, SANG Wei-guo², XUE Da-yuan^1**

(¹College of Life and Environmental Science, Minzu University of China, Beijing 100081, China; ²State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China)

Online:2013-04-10 Published:2013-04-10

摘要/Abstract

摘要： 地形是影响植物种群分布格局、维持群落多样性的重要因子。以东灵山20 hm²暖温带落叶阔叶林动态监测样地内的2个优势种群——辽东栎（Quercus wutaishanica）与胡桃楸（Juglans mandshurica）为研究对象，对比分析2种群同物种不同生长阶段、不同物种相同生长阶段群体的地形生境差异性。结果表明，样地内辽东栎种群主要分布在坡度大、南坡、西坡、凸出及高海拔的位置上，成年树比幼树更偏好凹地形；胡桃楸种群集中分布在坡度大、北坡、东坡、凹陷及低海拔的地形上，成年树相比幼树偏好分布在南坡、东坡及凹陷的位置。每个种群的幼树与成年树群体的地形因子之间差异都不显著 (P>0.05)，地形特征的分布范围一致；2物种成年树群体的海拔因子差异显著(P<0.05)，幼树群体除了海拔外，南北坡向也表现了明显的差异(P<0.05)。同种群不同生长阶段地形因子的选择显示了物种地形生境的限制及保守性，不同种群同生长阶段地形因子的选择显示了物种间空间分布格局及多样性的维持。这对于理解暖温带森林的物种共存及生物多样性维持具有重要的意义。

关键词: 生物固碳, 增殖礁, 褶牡蛎, 莱州湾

Abstract: Topography is an important factor affecting the distribution pattern of plant population and maintaining plant community diversity. Taking two dominant species populations (Quercus wutaishanica and Juglans mandshurica) in a 20hm² warm temperate deciduous broadleaved forest dynamic monitoring plot in Dongling Mountain of China as the objects, this paper studied the topographical habitat variability of the same species populations at different growth stages and of the different species populations at the same growth stages. Q. wutaishanica population mainly distributed at the large slope, southern aspect, western aspect, more convex, and high altitude locations, and the adult trees preferred the concave terrain, as compared with the saplings. J. mandshurica population concentrated in the steep slope, northern aspect, eastern aspect, more concave, and low altitude locations, and the adult trees preferred the southern aspect, eastern aspect, and more concave positions, as compared with the saplings. No significant differences were observed in the topographic factors for the saplings and the adults in each species (P>0.05), i.e., the topographical distribution features of the saplings and adults in each species were the same. The altitude factors for the adults of the two species were significantly different (P<0.05), and for the saplings, besides altitude factors, northsouth aspects also showed a significant difference (P<0.05). The topographical selection of the same species populations at different growth stages showed the limitations and conservatism of the species topographic habitats, and the topographical selection of the different species populations at the same growth stages showed the spatial distribution patterns and biodiversity maintenances between the species. This study could have significance in understanding the species coexistence and biodiversity maintenance in warm temperate forest.

Key words: carbon biosequestration, proliferation reefs, Laizhou Bay., Ostrea plicatula

刘海丰1,2,桑卫国2,薛达元1**. 暖温带森林优势种群的地形生境变异性[J]. 生态学杂志.

LIU Hai-feng1,2, SANG Wei-guo2, XUE Da-yuan1**. Topographical habitat variability of dominant species populations in a warm temperate forest.[J]. cje.

[1]	杨艳艳,高彦洁,汪健平,徐炳庆,孙春晓. 莱州湾春、夏季鱼卵、仔稚鱼群落结构及环境因子相关性 [J]. 生态学杂志, 2018, 37(10): 2976-2984.
[2]	李少文1,李凡1**,张莹1,刘元进1,徐宗法1,郑亮2. 莱州湾大型底栖动物的次级生产力 [J]. 生态学杂志, 2014, 33(1): 190-197.
[3]	李少文1,刘元进2,3,李凡1,张莹1,徐宗法1,吕振波1**,王田田3. 莱州湾大型底栖动物功能群现状 [J]. 生态学杂志, 2013, 32(2): 380-388.
[4]	张绪良;张朝晖;徐宗军;谷东起;郑伟. 莱州湾南岸滨海湿地的景观格局变化及累积环境效应 [J]. 生态学杂志, 2009, 28(12): 2437-2443.