东莞大屏嶂森林种群空间分布格局  

Spatial Distribution Patterns of the Forest Population in Dapingzhang,Dongguan

作　　者：严朝东 黄世辉 郑潮明 杨海 林观土[2] 陈永康[2] 

机构地区：[1]广东省东莞市大屏嶂森林公园,广东东莞523725 [2]华南农业大学信息学院

出　　处：《广东林业科技》2011年第5期19-24,共6页Forestry Science and Technology of Guangdong Province

基　　金：广东省科技计划项目(2009B030802042)

摘　　要：森林种群的空间分布格局分析是研究种群间关系的重要手段,采用Ripley's K函数方法对广东省东莞大屏嶂森林公园的森林种群进行了分析,结果表明:森林优势种群为黄牛木(Cratoxylaum cochinchi-nese)、破布叶(Microcos paniculata)和小叶青冈(Cyclobalanopsis myrsinifolia);除黄牛木在1.5～4.5 m尺度范围内表现为随机分布外,其余尺度上都表现为聚集分布,破布叶、小叶青冈皆为聚集分布;而地带性植被中华楠(Machilus chinensis)在11 m尺度以下呈现聚集分布,11 m以上则表现为随机分布。黄牛木与破布叶种群之间的分布格局既有正相关也有负相关,而小叶青冈与两者的分布格局皆呈现负相关性,具有十分强烈的竞争关系。Spatial distribution pattern analysis is an important method to study the relationship between plant populations. The spatial distribution pattern of the evergreen broadleaved forest in Dapingzhang, Dongguan was analysed using Ripley＇s K function. The results indicate that the dominant populations are Cratoxylum co- chinchinense, Microcos paniculata and Cyclobalanopsis myrsinifolia. Cratoxylum cochinchinense is in random distribution on the scale of 1.5 to 4.5 m, and aggregate distribution on other scales. Microcos paniculata and Cyclobalanopsis myrsinifolia are in aggregate distribution. Machilus chinensis is in aggregate distribution on the scale below 11 m and random distribution on the scale above 11 m. Analysis shows that the relationship of the spatial distribution patterns between Cratoxylum cochinchinense and Microcos paniculata is in both positive and negative correlation. Cyclobalanopsis myrsinifolia is negatively correlated to Cratoxylum cochinchinense and Microcos paniculata, with strong competitive relation.

关 键 词：大屏嶂森林公园 空间分布格局 Ripley’s K函数 

分 类 号：S718.54[农业科学—林学]