庐山常绿阔叶、落叶阔叶混交林乔木种群种间联结性研究  

INTERSPECIFIC ASSOCIATION OF TREES IN MIXED EVERGREEN AND DECIDUOUS BROADLEAVED FOREST IN LUSHAN MOUNTAIN

作　　者：郭志华[1] 卓正大[1] 陈洁 吴梅凤 

机构地区：[1]华南师范大学地理系

出　　处：《植物生态学报》1997年第5期424-432,共9页Chinese Journal of Plant Ecology

摘　　要：本文通过２×２联列表以多种指标分别测定了庐山常绿阔叶、落叶阔叶混交林３６个乔木种群在抽样面积分别为１００ｍ２和４００ｍ２时的种间联结性。结果表明：在中亚热带山地森林植被研究中，以Ｘ２检验为基础，结合联结系数ＡＣ和共同出现百分率ＰＣ来测定植物种群的联结性，效果较好。一方面，不同大小的样方能反映物种种间联结性的空间变化；另一方面，抽样面积为１００ｍ２，更能准确全面地表现优势种群种间联结性的特征。种间正联结性越强，其生态位重叠值越大，反之，种间负联结性越强，其生态位重叠值越小。最后，还将这３６个种群按其联结性划分为４个生态种组。Using the 2×2 contigency table and different indices,the interspecific associations of species in the mixed broadleaved evergreen and deciduous forest in Lushan Mountain of China were investigated.The results show that X2 test,together with association coefficient (AC) and percentage coocurrence(PC),was effective way to measure the association.Different quadrates in size could effectively reflect the spatial change of interspecific association.Moreover,the quadrates of 100m2 could extractly display the characters of association between dominant species in mountain mixed forest in subtropics.The more intense the positive association was,the larger the value of niche overlap was;The more intense the negative association was,the smaller the value of niche overlap was.In the light of the interspecific association,these tree species can be divided into four ecogroups of species.

关 键 词：庐山 常绿阔叶 落叶阔叶混交林 种间联结 生态位重叠 

分 类 号：S718.545[农业科学—林学]