摘要
通过对文昌市典型钛矿区周边植被资源的调查,计算并分析乔木、灌木、草本3种生活型的物种数、重要值及多样性指数,来研究矿区植被多样性。结果表明:文昌废弃钛矿区周边植被有28科37属46种,其中乔木13种、灌木12种、草本21种。矿区周边物种多样性指数草本层>乔木层>灌木层,群落相似性指数高达0.4以上。在矿区植被恢复过程中,木麻黄(Casuarina equisetifolia)、大叶相思(Acacia auriculiformis A.Cunn.ex Benth.)、苦楝(Melia azedarach)3个乔木树种可作为植被恢复关键树种,潺槁木姜子[Litseaglutinosa(Lour.)]、琼崖海棠(Calophyllum inophyllum)、椰子树(Cocos nucifera L.)等树种也可作为混交树种,建议在废弃钛矿区植被恢复时采用多树种混交模式,并适当种植灌木和草本,对于恢复矿区植被具有重要意义。
Through investigating the surrounding vegetation resources of typical titanium mining area in Wenchang,calculated and analyzed the species number,important value and diversity index of three life forms of trees,shrubs and herbs to study the vegetation diversity in the mining area.The results showed that there were only 28families,37 genera and 46 species of vegetation around the Wenchang abandoned titanium mine area,including 13 species of trees,12 species of shrubs and 21 species of herbs.The species diversity index around the mining area was herb layer>arbor layer>shrub layer,and the community similarity index was more than 0.4.During vegetation restoration in the mining area,these three tree species(Casuarina equisetifolia,Acacia auriculiformis A.Cunn.Ex Benth.,Melia azedarach.)could be used as key species for vegetation restoration.These species(Litseaglutinosa(Lour.),Calophyllum inophyllum,Cocos nucifera L.)could also be used as mixed tree species,it was recommended to use multiple tree species mixed mode when vegetation restoration in the abandoned titanium mine area,and appropriate planting shrubs And herbs are of great significance for restoring vegetation in the mining area.
作者
宿少锋
林之盼
王小燕
陈珠琳
薛杨
SU Shaofeng;LIN Zhipan;WANG Xiaoyan;CHEN Zhulin;XUE Yang(Hainan Academy of Forestry,Haikou,Hainan 571100;Hainan Wenchang Forest Ecosystem Research Station,Haikou,Hainan 571100;Research Institute of Forest Resource Information Techniques,Chinese Academy of Forestry,Beijing,100091)
出处
《热带农业科学》
2020年第1期59-66,共8页
Chinese Journal of Tropical Agriculture
基金
海南省属科研院所技术开发专项(No.KYYS-2018-24)
关键词
钛矿区
多样性指数
重要值
海南
titanium mining area
diversity index
important value
Hainan
