毛金竹林优势灌木种间联结研究  

Interspecific association of dominant shrub species in Phyllostachys nigra var.henonis forest

作　　者：刘祥凤[1] 邓绍勇[2] 黄思远 况小宝[2] 卢玉生 李怡 余林[2] Liu Xiangfeng;Deng Shaoyong;Huang Siyuan;Kuang Xiaobao;Lu Yusheng;Li Yi;Yu Lin(Jinggangshan Forestry Bureau,Jinggangshan Jiangxi 343600,China;Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China)

机构地区：[1]井冈山市林业局,江西井冈山343600 [2]江西省林业科学院,江西南昌330013

出　　处：《南方林业科学》2022年第5期27-31,共5页South China Forestry Science

基　　金：中央财政林木良种繁育补贴项目(项目编号:20220902);江西井冈山竹林生态系统国家定位观测研究站资助项目(项目编号:20210201)。

摘　　要：为阐明毛金竹林群落结构特征,在调查数据的基础上,运用方差比率法(VR),基于2×2列联表计算统计量,结合联结系数(AC)和Jaccard相似系数(PC)对井冈山大坝里毛金竹群落24种优势灌木进行种间联结分析。结果表明:研究区毛金竹群落灌木层总体联结性VR值等于1.282,呈不显著正联结;检验显示有9个种对达到极显著正联结,11个种对达到显著联结,246个种对呈不显著联结,10个种对无联结;0.5<AC≤1的种对共有4对,0.2<AC≤0.5的种对共有25对,-0.2<AC≤0.2的种对共有130对,-0.5<AC≤-0.2的种对共有30对,在-1<AC≤-0.5的种对共有87对;PC≥0.5的种对数为0,0.3<PC<0.5的种对共有10对,0.1<PC<0.3的种对共有116对,0<PC<0.1的种对共有150对,其中有80对种对PC值为0。各研究方法得到的结果基本相似,但不同检验方法存在一定的差异。研究区毛金竹林优势灌木各种对间的关联性不强,群落稳定性不高。Based on the field survey data,the interspecific association of 24 dominant shrub species in Phyllostachys nigra var.henonis forest was studied by using variance ratio method(VR),chi-square test(χ2),interspecific association coefficient(AC)and Jaccard association index(PC)with 2×2 contingency table,to clarify the community structure characteristics of Ph.nigra var.henonis forest.And the experimental field is located at Dabali region in Jinggangshan City,Jiangxi Province.The results showed that:the VR value of overall interspecific associations was equal to 1.282,which showed that the interspecific association of dominant shrub species is non-significant positive associations.The test showed that 9 species pairs reached extremely significant positive association,11 species pairs reached significant association,246 species pairs showed no significant association.There were 4 species pairs with the AC value in the range of 0.5 to 1,25 species pairs with the AC value in the range of 0.2 to 0.5,130 species pairs with the AC value in the range of-0.2 to 0.2,30 species pairs with the AC value in the range of-0.5 to-0.2,and 87 species pairs with the AC value in the range of-1 to-0.5.There were no pairs with PC value above or equal 0.5,10 pairs with PC value of 0.3 to 0.5,116 pairs with PC value in the range of 0.1 to 0.3,150 pairs with PC value in the range of 0 to 0.1 and PC value of 80 species pairs were equal to 0.The results obtained by each research method were basically similar,but there were some differences among the test methods.The interspecific association of dominant shrub species in Ph.nigra var.henonis forest is not strong and the community stability is not high in the experimental area.

关 键 词：毛金竹 优势灌木 种间联结 

分 类 号：S718.54[农业科学—林学] S795.9