深圳福田海桑+无瓣海桑自然林的空间结构分析  

Analysis of the spatial structure of natural Sonneratia caseolaris+S.apetala forest in Futian, Shenzhen

作　　者：梁士楚[1] 梁铭忠[1] 吴苑玲 昝启杰[2] 王勇军[2] 谢强[1] 

机构地区：[1]广西师范大学生命科学学院,广西桂林541004 [2]广东内伶仃福田国家级自然保护区管理局,广东深圳518048

出　　处：《广西植物》2005年第5期393-398,共6页Guihaia

基　　金：广东省自然科学基金项目(035481;021582)~~

摘　　要：采用位置指数(CE)、混交指数(DM)、分异指数(T)以及Ripley’sK方程,探讨了深圳福田红树林保护区海桑+无瓣海桑自然林的空间结构特征。海桑、无瓣海桑、秋茄和桐花树种群都呈现集群分布;海桑-无瓣海桑、海桑-秋茄、海桑-桐花树、桐花树-无瓣海桑以及秋茄-桐花树之间在空间分布上呈现负关联,秋茄-无瓣海桑之间呈现正关联,但这些关联都不显著。海桑和秋茄与其它树种属于中度混交,而无瓣海桑和桐花树与其它树种的混交程度相对较弱。海桑和无瓣海桑个体之间的胸围差异明显,而其它树种个体之间的胸围差异中等。海桑个体之间的树高差异明显,而其它树种个体之间的树高差异中等。采用的空间指数和空间统计技术有效地描述了树种的空间属性。The spatial structure character of tree populations in a natural Sonneratia caseolaris ＋S. apetala forest in Futian,Shenzhen was investigated using position index（CE）,mixture index（DM）,differentiation index （T） ,and Ripley＇s K functions. The horizontal spatial pattern of populations of S. caseolaris,S, a petala, Kandelia candel and Aegiceras corniculatum showed clumped distribution. Negative spatial correlations were found between S. caseolaris and S. apetala,S, caseolaris and K. candel, S. caseolaris and A. corniculatum ,A. corniculaturm and .S. apetala, K. candel and A. corniculatum, and positive spatial correlations between K. candel and S. caseolaris. However,all these correlations were not statistically significant. In the forest,the mixed degree of S. caseolaris and K. candel and other species was moderate,while that of S. apetala and A. corniculatum and other species relatively low. Individuals of S. caseolaris and S. apetala showed a clear difference in perimeters at breast height, while other species a moderate difference. Individuals of S. caseolaris showed a clear difference in heights,while other species a moderate difference. The spatial indices and techniques used could effectively describe the spatial characteristics of species.

关 键 词：红树林 海桑 无瓣海桑 空间结构 

分 类 号：Q948.885.3[生物学—植物学]