Differences and Connections of Leaf Economic Spectrum between Mangrove Sapling Plantation and Natural Mature Forest
Revealing the difference and correlation of leaf economic spectrum between mangrove sapling plan-tation and natural mature forest can deepen the understanding of the adaptation mechanism of mangrove sap-ling plantation and natural mature forest to the environment.In this study,mangrove sapling plantation(Bruguiera gymnorhiza,Aegiceras corniculatum,Kandelia obovata and Avicennia marina)with one year of artificial afforestation and natural mature forests(Aegiceras corniculatum and Kandelia obovata)were studied.The leaf functional traits[Leaf Dry Matter Content(LDMC),Specific Leaf Area(SLA),Leaf Tissue Density(LTD),Leaf Thickness(LT),Leaf Area(LA)and Leaf Volume(LV)]of sapling plantation and natural mature forest were measured.The differences and correlations of different leaf functional traits be-tween sapling plantation and natural mature forest were analyzed.The results showed that:(1)Except for LV,the other leaf functional traits were significantly different between sapling plantation and natural mature forest(P＜0.05).Among them,LDMC,SLA,LTD and LA in natural mature forests were significantly lar-ger than those in sapling plantation,while LT was the opposite.(2)In sapling plantation,only LV was signif-icantly positively correlated with LT and LA,and the correlation between other leaf functional traits was not significant.In natural forests,SLA was negatively correlated with LDMC,LTD was negatively correlated with SLA and LA,while LTD was positively correlated with LDMC,LV was positively correlated with LT and LA.(3)Sapling plantation invested in all traits of mangrove leaf,while mature natural forests mainly focused on the investment in LDMC,LTD and SLA.The results of this study are helpful to understand the differ-ences in ecological adaptation process,growth strategy and resource allocation between mangrove sapling plantation and natural mature forest,and provide a scientific basis for mangrove restoration and afforestation in southeastern coastal areas of China.
万方数据
维普
