Page 144 - 《广西植物》2026年第1期
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1 4 0                                  广  西  植  物                                         46 卷
                                        表 1  本研究测定的枝叶性状及其生态学意义
                         Table 1  Branch and leaf traits measured in this study and their ecological significance
                       性状              缩写            单位         生态学意义
                       Trait         Abbreviation    Unit       Ecological significance
                                                                导管腔总面积占单位边材横截面积的比例ꎬ与水分运输有关
                    导管腔比例
                                        Vs            %         Proportion of the total area of vessel lumina to the unit cross ̄sectional
                 Vessel lumen proportion
                                                                area of sapwood is related to water transport
                                                                导管壁总面积占单位边材横截面积的比例ꎬ与机械支持和抗性
                    导管壁比例                                       有关
                                        Vwf           %
                 Vessel wall proportion                         Proportion of the total area of vessel walls to the unit cross ̄sectional
                                                                area of sapwood is associated with mechanical support and resistance
                                                                单位视野内导管数量ꎬ与水分运输能力有关
                     导管密度
                                        Vd         No.mm   ̄2  Number of vessels per unit viewing area is related to water
                    Vessel density
                                                                transport capacity
                                                                轴向薄壁组织占单位边材横截面积的比例ꎬ与储存能力有关
                  轴向薄壁组织比例
                                        Apf           %         Proportion of axial parenchyma to the unit cross ̄sectional area of
               Axial parenchyma proportion
                                                                sapwood is associated with storage capacity
                                                                射线组织占单位边材横截面积的比例ꎬ与横向物质传输和储存
                   射线组织比例                                       能力有关
                                        Rpf           %
                Ray parenchyma proportion                       Proportion of ray tissue to the unit cross ̄sectional area of sapwood is
                                                                related to radial transport and storage capacity
                                                                纤维组织占单位边材横截面积的比例ꎬ与机械支持有关
                   纤维组织比例
                                        Fb            %         Proportion of fiber tissue to the unit cross ̄sectional area of sapwood is
                   Fiber proportion
                                                                associated with mechanical support
                                                                单位视野内的导管直径的加权平均值ꎬ与水分运输有关
                   水力导管直径
                                        D h          μm         Weighted average of vessel diameters per unit viewing area is
                Hydraulic vessel diameter
                                                                associated with water transport efficiency
                                                                导管壁厚度(t)与导管腔大小(b)的比值ꎬ与抗栓塞能力有关
                   导管壁加固系数
                                        t/ b          -         Ratio of vessel wall thickness ( t) to vessel lumen diameter ( b) is
             Vessel wall reinforcement coefficient
                                                                associated with embolism resistance
                    理论导水率
                                                        ̄1
                                                     ̄1
                  Theoretical hydraulic  K t   kgm s MPa   ̄1  木质部理论水分运输能力
                                                                Theoretical water transport capacity of xylem
                    conductivity
                                                                叶片各组织厚度之和ꎬ与抗性有关
                     叶片厚度
                                        LT           μm         Sum of thicknesses of all leaf tissue layers is associated with
                    Leaf thickness
                                                                stress resistance
                                                                位于上表皮之下的绿色同化组织ꎬ与光能的吸收利用有关
                   栅栏组织厚度
                                        PT           μm         Green assimilatory tissue located beneath the upper epidermis is
                Palisade tissue thickness
                                                                associated with light energy absorption and utilization
                                                                栅栏组织和下表皮之间的绿色同化组织ꎬ与光合能力和气体交
                                                                换有关
                   海绵组织厚度
                                        ST           μm         Green assimilatory tissue located between the palisade tissue and
                 Spongy tissue thickness
                                                                lower epidermis is associated with photosynthetic capacity and
                                                                gas exchange
              栅栏组织厚度 / 海绵组织厚度                                   栅栏组织与海绵组织厚度的比值ꎬ与光合能力有关
                Palisade tissue thickness /  PT / ST  -         Ratio of palisade tissue thickness to spongy tissue thickness is
                 Spongy tissue thickness                        correlated with photosynthetic performance
                     比叶面积                                       与叶片构建成本和光合速率有关
                                                     2
                                        SLA        cm g   ̄1
                   Specific leaf area                           It is associated with leaf construction cost and photosynthetic rate
                    叶片穿刺力                                       表征叶片机械抗性
                                                   kNm  ̄1
                                        F p
                  Leaf punching force                           It denotes leaf mechanical strength
                  上、下表皮的厚度                                      表皮细胞是覆盖叶片最外层的活细胞ꎬ主要起保护作用
                Upper epidemis thicknessꎬ  UET、LET   μm         Epidermis cells are living cells covering the outermost layer of
                lower epidemis thickness                        leavesꎬ primarily acting as a protective barrier
                                                                角质层是覆盖在表皮细胞外壁表面的一层非细胞结构ꎬ主要起
                 上、下角质层的厚度                                      保护作用
                Upper cuticle thicknessꎬ  UCT、LCT    μm
                                                                Stratum corneum is a non ̄cellular layer covering the outer surface of
                 lower cuticle thickness
                                                                epidermis cellsꎬ primarily providing protective functions
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