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Received:September 30, 2017Revised:December 27, 2017
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The Growth Performance and Eco-efficiency of Indigenous Tree Species in Zhaoqing Beiling Mountain
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Abstract:
The growth of 23 broad-leaved trees species in the 10-year-old plantation at Zhaoqing Beiling mountain was investigated. With their fast growth in height and crown surface, and better performance in forming forest, all investigated tree species, Betula alnoides, Castanopsis hystrix, Castanopsis fissa, Schima wallichii were considered the best. Machilus macclurei, Schima superba, Cinnamomum camphora, Lysidice rhodostegia, Castanopsis fabri, Syzygium jambos and Castanea henryi formed a group with medium rapid growth, Litsea glutinosa, Ormosia pinnata, Cinnamomum burmanii, Schefflera heptaphylla, Cleistocalyx operculatus, Ilex rotunda , Mangifera perciliformis, Dolichandrone cauda-felina formed another group with medium slow growth, Elaeocarpus apiculatus, Kopsia arborea, Heteropanax fragrans, Bischofia javanica with slowly growth. The richness index, diversified index, evenness index of the mixed afforested stand’ tree layer, shrub layer and herb layer were higher than the Schima superba stand. The same results appeared in the data of thickness, litter standing crop, maximum water absorption rate of litter and maximum water holding capacity of litter. The soil nutrients of mixed afforested stands were also higher than single afforested ones. The forest eco-efficiency of mixed afforestation of indigenous tree species were obviously superior to those of the single Schima superba stand.
Key words:  mixed afforestation; diversity; indigenous tree species; eco-efficiency; Zhaoqing Beiling mountain

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