单 位：
中国林业科学研究院资源信息研究所;北京林业大学省部共建森林培育与保护教育部重点实验室;浙江农林大学环境科技学院;海南省白沙县林业局
关键词：
森林发展类型;热带;退化天然次生林;近自然森林经营
摘 要：
通过对热带不同演替阶段的2类退化天然次生林林学特性的对比分析,确定2类退化天然次生林在乔木树种组成结构、幼苗幼树组成结构、更新能力上存在的差异。以近自然森林经营思想为依据,针对2类退化森林的不同情况,制定出森林发展类型。早期天然次生林:森林类型的发展目标为环境保护和木材生产。在未来树种组成上,主林层林分目标树种为烟斗柯、乌墨、枫香。烟斗柯主伐木胸径50cm,主伐年龄≥50年;乌墨主伐木胸径70～80cm,主伐年龄≥50年;枫香主伐木胸径45cm,主伐年龄≥20年。较老天然次生林:森林类型的发展目标相同,但在未来树种组成上,主林层林分目标树种为黄樟、乌墨、华润楠、枫香。黄樟的主伐木胸径40cm,主伐年龄≥50cm;乌墨主伐木胸径70～80cm,主伐年龄≥50年;华润楠主伐木胸径60～70cm,主伐年龄≥60年;枫香的主伐木胸径45cm,主伐年龄≥20年。
译 名：
Forest Development Type of Two Tropical Degraded Secondary Forests in Baisha County,Hainan Province
作 者：
Meng Jinghui1,2 Lu Yuanchang2 Wang Yixiang3 Guo Dongce4(1.Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University Beijing 100083;2.Institute of Forest Resource Information Techniques,CAF Beijing 100091;3.School of Environmental Technology,Zhejiang Agriculture and Forestry University Lin'an 311300;4.Baisha Forest Bureau,Hainan province Baisha 572800)
关键词：
forest development type;tropical region;degraded secondary forests;nature-inclined forest management
摘 要：
Forest development type refers to a guiding model of the nature-inclined forest management that perfectly combines the potential vegetation succession and the economic demands.In this study,We investigated differences in tree species composition,regeneration composition and regeneration status between the two different degraded secondary forests in a tropical region.The results showed the obvious difference in relation to the related parameters between the two forest types.According to the theory of the nature-inclined forest management and current conditions of the different secondary forests,two different forest development types were proposed.For the young secondary forest of early succession,the objectives of the forest development type are protective function and timber production.The dominate tree species in the future stands are Lithocarpus corneus,Syzygium cumini and Liquidambar formosana.The target diameter of Lithocarpus corneus is 50 cm and the felling age is more than 50 years,the final felling age of Syzygium cumini is more than 50 years with the target diameter of 70-60 cm,the target diameter of Liquidambar formosana is 45 cm with final felling age more than 20 years.For the older secondary forest,the main aims of the forest development type is the same as the young secondary forest,however the forest composition is different.In the future stand,the dominate tree species are Cinnamomum porrectum,Syzygium cumini,Machilus chinensis,Liquidambar formosana.The target diameter of Cinnamomum porrectum is 40 cm with felling age more than 50 years,the final felling age of Syzygium cumini is more than 50 years and its target diameter is 70-80 cm,the target diameter of Machilus chinensis is 60-70 cm with final felling age of more than 60 years.The target diameter of Liquidambar formosana is 45 cm with final felling age more than 20 years.
