小兴安岭凉水国家级自然保护区植物beta多样性及其影响因素

佘丹琦, 张喜亭, 肖路, 仲召亮, 王慧梅, 王文杰

Plant beta diversity and its influence factors in the Liangshui National Nature Reserve in the central region of the Xiaoxing’an Mountains

Danqi She, Xiting Zhang, Lu Xiao, Zhaoliang Zhong, Huimei Wang, Wenjie Wang

图4 地理地形、保护强度、土壤因子、群落结构与beta多样性复杂关系的冗余分析(RDA)排序分析(左)和最显著解释因子筛选(右)。T-D: 乔木层beta多样性; T-Ab: 乔木层物种多度差异组分; T-Rep: 乔木层物种周转组分; S-D: 灌木层beta多样性; S-Ab: 灌木层物种多度差异组分; S-Rep: 灌木层物种周转组分; H-D: 草本层beta多样性; H-Ab: 草本层物种多度差异组分; H-Rep: 草本层物种周转组分; Lon. and Lat.: 经纬度; Altitude: 海拔; Slope: 坡度; SP: 坡位; Aspect: 坡向; PI: 保护强度; CD: 郁闭度; FA: 林龄; TDBH: 乔木胸径; TH: 乔木树高; SH: 灌木树高; SGD: 灌木地径; SOC: 土壤有机碳; TN: 全氮; CN: 碳氮比; EC: 电导率; BD: 土壤容重; SWC: 土壤含水量。

Fig. 4 Redundancy analysis (RDA) ordination between geography and terrain, protection intensity, soil matrix, and community characteristics and beta diversity indices (left) and the most significant explaining factors (right). Btotal, Beta diversity; AbDiff, component of abundance differences; Repl, component of species turnover; T-D, Arbor Btotal; T-Ab, Arbor AbDiff; T-Rep, Arbor Repl; S-D, Shrub Btotal; S-Ab, Shrub AbDiff; S-Rep, Shrub Repl; H-D, Herb Btotal; H-Ab, Herb AbDiff; H-Rep, Herb Repl; Lon. And Lat., Longitude and Latitude; SP, Slope position; PI, Protection intensity; CD, Crown density; FA, Forest age; TDBH, Tree diameter; TH, Tree height; SH, Shrub height; SGD, Shrub ground diameter; SOC, Soil organic carbon; TN, Total nitrogen; CN, C : N; EC, Electroconductibility; BD, Soil bulk density; SWC, Soil water content.