长白山温带森林不同演替阶段群落功能性状的空间变化

郝姝珺,李晓宇,侯嫚嫚,赵秀海

Spatial variations of community functional traits at different successional stages in temperate forests of Changbai Mountains, Northeast China

HAO Shu-Jun,LI Xiao-Yu,HOU Man-Man,ZHAO Xiu-Hai

表2 功能性状及生态学意义

Table 2 Functional traits and ecological meaning

功能性状 Functional trait 单位 Unit 生态学意义 Ecological meaning 叶面积 Leaf area mm2 代表叶片对光的捕获能力, 与环境胁迫和干扰下的生态策略有关 Represents the ability to capture light; linked to ecological strategy with respect to environmental stress and disturbances 比叶面积 Specific leaf area mm2·mg-1 与叶片光合能力正相关, 与叶片寿命负相关 Positively related to photosynthetic rate and negatively to leaf longevity 叶片厚度 Leaf thickness mm 代表植物抗干扰和高投入的能力 Represents the ability to defy changes and high investment 叶氮含量 Leaf nitrogen concentration mg·g-1 与光合作用蛋白和最大光合速率有关 Related to the proteins in photosynthetic machinery and maximum photosynthetic rate 叶磷含量 Leaf phosphorus concentration mg·g-1 与植物最大光合速率以及营养级质量有关 Related to maximum photosynthetic rate and high nutritional quality in food webs 最大树高 Maximum tree height m 代表植株在光垂直梯度所处的位置及竞争能力 Associated with position of the species in the vertical light gradient of plants and competitiveness