木棉的高抗旱性和其速生性适合修复海南已退化的森林  

High Drought Stress Tolerance and Rapid Growth of Bombax ceiba is Suitable for the Reforestation to Restore Degraded Forest in Hainan

作　　者：罗金环 陈斌 陈广武 谭照远 张辉 Luo Jinhuan;Chen Bin;Chen Guangwu;Tan Zhaoyuan;Zhang Hui(Sanya Academy of Forestry,Sanya 572000,China;Sanya Forestry Bureau,Sanya 572000,China;College of Forestry/Wuzhishan National Long Term Forest Ecosystem Monitoring Research Station,Hainan University,Haikou 570228,China;Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants,Ministry of Education,College of Forestry,Hainan University,Haikou 570228,China)

机构地区：[1]三亚林业科学研究院,海南三亚572000 [2]三亚市林业局,海南三亚572000 [3]海南大学林学院/海南五指山森林生态系统国家定位观测研究站,海南海口570228 [4]海南大学林学院热带特色林木花卉遗传与种质创新教育部重点实验室,海南海口570228

出　　处：《海南大学学报（自然科学版）》2020年第3期247-253,共7页Natural Science Journal of Hainan University

基　　金：2020年三亚抱坡岭山体生态修复科学研究(HD-KYH2020014)。

摘　　要：为了确定木棉是否适合修复海南已退化的森林,本研究在海南三亚抱坡岭量化研究了木棉对高度退化的热带森林的修复效果,结果表明,抱坡岭木棉在旱季可通过气孔关闭而使其叶片膨压丧失点降低,从而使其具有高抗旱性,并且抱坡岭木棉还具有与较高光合速率相适应的功能性状,具有较高的生长速率;此外,木棉在抱坡岭的存活率可达到很高的水平(92%±4%).因此,木棉是一个非常适合修复海南已退化热带森林的本地树种.In the report,in order to confirm whether the native tree species(Bombax ceiba)can be suitable for performing reforestation,the restore effects of B.ceiba on the degraded tropical forests in Baopoling Mountain(BPL),Sanya,China were analyzed.The results showed that B.ceiba in BPL has high drought stress tolerance to adapt to drought stress due to the reduction of leaf turgor loss point caused by stomatal closure in the dry season.And B.ceiba in BPL also has the functional traits that are suitable for the higher photosynthetic rate,so,it has a higher growth rate.Additionally,the survival rate of B.ceiba in BPL is very high(92%±4%).So,B.ceiba is a native tree species that very fit for performing reforestation to recover degraded tropical forest ecosystems in Hainan island,China.

关 键 词：抗旱性 速生 功能性状 本地种 外来种 再造林 

分 类 号：S721[农业科学—林木遗传育种]