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长白山阔叶红松林中红松与紫椴的空间分布格局及其关联性
引用本文:张健,郝占庆,宋波,叶吉,李步杭,姚晓琳.长白山阔叶红松林中红松与紫椴的空间分布格局及其关联性[J].应用生态学报,2007,18(8):1681-1687.
作者姓名:张健  郝占庆  宋波  叶吉  李步杭  姚晓琳
作者单位:1. 中国科学院沈阳应用生态研究所,沈阳,110016;中国科学院研究生院,北京,100049
2. 中国科学院沈阳应用生态研究所,沈阳,110016
3. 美国克莱姆森大学,Clemson SC,29634
基金项目:国家自然科学基金;中国科学院知识创新工程项目;国家科技支撑计划
摘    要:以长白山阔叶红松林25hm2样地调查数据为基础,采用点格局分析方法O-ring统计,分析了红松与紫椴两个优势树种在主林层、次林层和林下层的空间分布格局,以及各林层之间的种内和种间关联性.结果表明:在小尺度上,红松和紫椴总体上呈聚集性分布,但不同林层的分布格局各异.物种在较低的林层呈明显的聚集分布,而在较高的林层则呈随机或规则分布,聚集度随林层的增高而降低.主林层与次林层红松在<11m的尺度内呈明显的正相关.主林层与次林层、林下层紫椴之间呈负相关.红松和紫椴在整体上表现为正相关,但不同林层间的关联性各异.主林层红松与3个林层紫椴之间没有明显的关联性;次林层红松与次林层紫椴在>4m的尺度上呈负相关,而与林下层紫椴没有明显的关联性;主林层紫椴与次林层红松在0~100m尺度内都表现为显著正相关.

关 键 词:点格局分析  空间关联性  空间格局  阔叶红松林  长白山
文章编号:1001-9332(2007)08-1681-07
修稿时间:2006-10-19

Spatial distribution patterns and associations of Pinus koraiensis and Tilia amurensis in broad-leaved Korean pine mixed forest in Changbai Mountains
ZHANG Jian,HAO Zhan-qing,SONG Bo,YE Ji,LI Bu-hang,YAO Xiao-lin.Spatial distribution patterns and associations of Pinus koraiensis and Tilia amurensis in broad-leaved Korean pine mixed forest in Changbai Mountains[J].Chinese Journal of Applied Ecology,2007,18(8):1681-1687.
Authors:ZHANG Jian  HAO Zhan-qing  SONG Bo  YE Ji  LI Bu-hang  YAO Xiao-lin
Institution:1.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. Clemson University, Clemson SC 29634, USA
Abstract:Based on the investigation data from a 25 hm2 broadleaved Korean pine (Pinus koraiensis) mixed forest plot in Changbai Mountains of China, the dominant species Korean pine and Tilia amurensis were chosen as research objects. One point pattern analysis method, O-ring statistics, was used to analyze the spatial patterns of the species in three vertical layers, i.e., overstory, midstory and understory layers, and the spatial associations of intra- and inter-species between different vertical layers were studied. The results showed that P. koraiensis and T. amurensis were clumped at smaller scales. Higher layers tended to be randomly or regularly distributed, while lower layers tended to be aggregated at smaller scales. The aggregation degree decreased with canopy height. P. koraiensis stems in overstory layer were significantly positively associated to the stems in midstory layer at scales <11 m, and T. amurensis in overstory layer showed negatively correlation with that in midstory and understory layers. There was generally a positive correlation between the two species, but the association varied among different layers. No significant correlation was observed between P. koraiensis stems in overstory layer and T. amurensis in three layers. P. koraiensis stems in midstory layer showed slightly negative correlation with T. amurensis in the same layer at scales >4 m, but no significant association to T. amurensis in understroy layer. T. amurensis in overstory layer was significantly positively associated to P. koraiensis in midstory layer at scales <100 m.
Keywords:point pattern analysis  spatial association  spatial pattern  broad-leaved Korean pine (Pinus koraiensis) forest  Changbai Mountains
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