文昌锦山镇次生林生态恢复造林树种早期生长效果分析

Early growth effect of afforestation tree species which secondary forest ecological restoration in Jinshan Town

在海南文昌开展15个树种近自然造林试验,通过2年生混交树种生长量调查对比分析,评价各个树种混交表现.结果表明:不同树种树高生长量、地径生长量均达到显著性差异(P<0.05),大叶相思、麻楝、红花木棉3个树种早期生长效果明显,而青皮、蝴蝶树、坡垒这3个树种早期生长缓慢.利用系统聚类分析划分为4类,第1类为速生类,代表树种为大叶相思;第2类为较速生类,代表树种有麻楝、红花木棉、海南菜豆;第3类为中生类,代表树种有花梨、假苹婆、美丽梧桐、灯架、子京、海南红豆等;第4类为慢生类,代表树种有青皮、海南苹婆、油楠、蝴蝶树、坡垒等.

Based on the near-natural afforestation experiment of 15 tree species in Wenchang,Hainan, the mixed performance of each tree species was evaluated through a comparative analysis of the growth of two-year-old mixed tree species. The results showed that the growth of tree height and the growth of ground diameter of different tree species reached significant difference(P<0.05),and the early growth effects of three tree species of Acacia auriculiformis,Chukrasia tabularis and Bombax ceiba were obvious,while Vatica mangachapoi,Heritiear patrifoliamerr and Hopea hainanensis grew slowly in the early stages. It is divided into 4 categories by system cluster analysis. The first type is fast-growing,the representative species is Acacia auriculiformis;the second type is faster-growing, the representative species are Chukrasia tabularis,Bombax ceiba,and Radermachera hainanensis;the third category is medium growth rate and the representative species are Dalbergia odorifera,Sterculia lanceolata,Erythropsis pulcherrima,Alstonia scholaris,Madhuca pasquieri,Ormosia pinnata,etc.;the fourth category is slow-growing,the representing species are Vatica mangachapoi,Sterculia hainanensis,Sindora glabra,Heritiear patrifoliamerr,Hopea hainanensis.