不同配置模式护坡植物功能性状与光合特性研究

Functional Traits and Photosynthetic Characteristics of Slope Protection Plants with Different Configuration Modes

以3种植物配置模式的护坡植物为研究对象,分析了不同植物配置模式下叶片鲜重(FW)、叶片干重(DW)、叶片含水量(LDC)、叶片SPAD值、叶面积(LA)、叶厚(LT)、比叶面积(SLA)、干物质含量(LDWC)及叶片光合特性参数(Pn、Gs、Ts、Ci)。结果表明:不同植物配置模式下,坡面植物的叶片功能性状、光合特性存在显著差异,这与邻株植物的物理或几何上的拥挤效应有较大的关系。研究发现,综合当地环境和边坡生态修复的效益性,草灌结合的植物配置模式更适合边坡生态修复。

In this paper,the slope protection plants of three plant configuration modes were taken as the research object,and the leaf fresh weight(FW),leaf dry weight(DW),leaf water content(LDC),leaf SPAD value,leaf area(LA),leaf thickness(LT),specific leaf area(SLA),dry matter content(LDWC)and leaf photosynthetic characteristic parameters(Pn,Gs,Ts,Ci)were analyzed under different configuration modes.The results showed that there were significant differences in leaf functional traits and photosynthetic parameters of slope plants under different plant configuration modes,which was strongly related to the physical or geometric crowding effect of adjacent plants.In conclusion,considering the local environment and the benefit of slope ecological restoration,the plant configuration mode of grass-shrub combination is more suitable for slope ecological restoration.