CAJ | 학술논문

对舟山海岛松材线虫病Bursaphelenchus xylophilus发生前设王的7个典型松林祥地进行复查.结果表明:通过17a的自然恢复,舟山海岛松材线虫病除治迹地已演替到针阔混交林或阔叶林阶段,其乔木层的多样性有所增加,增加幅度顺序为:演替到落叶阔叶林和常绿落叶阔叶混交林的马尾松Pinus massoniana纯林>演替到落叶阔叶林的黑松P thunbergii纯林>演替到针阔混交林的马尾松纯林>演替到落叶阔叶林的黑松阔叶树混交林>演替到常绿落叶阔叶混交林的马尾松阔叶树混交林.马尾松阔叶树混交林更新层和灌木层的多样性下降,原更新树种极少的黑松纯林更新层多样性上升,其他林分的更新层和灌木层多样性变化不大,而草本层的多样性均明显减少.恢复形成至相同阶段的植被类型其多样性特征缺乏相似性,更多地取决于原有群落的组成结构.根据自然恢复过程中物种多样性的动态变化规律,结合海岛实际,提出应在除治迹地补植地带性植被的建群种或优势种的建议,以丰富物种和景现多样性.
대주산해도송재선충병Bursaphelenchus xylophilus발생전설왕적7개전형송림상지진행복사.결과표명:통과17a적자연회복,주산해도송재선충병제치적지이연체도침활혼교림혹활협림계단,기교목층적다양성유소증가,증가폭도순서위:연체도락협활협림화상록락협활협혼교림적마미송Pinus massoniana순림>연체도락협활협림적흑송P thunbergii순림>연체도침활혼교림적마미송순림>연체도락협활협림적흑송활협수혼교림>연체도상록락협활협혼교림적마미송활협수혼교림.마미송활협수혼교림경신층화관목층적다양성하강,원경신수충겁소적흑송순림경신층다양성상승,기타림분적경신층화관목층다양성변화불대,이초본층적다양성균명현감소.회복형성지상동계단적식피류형기다양성특정결핍상사성,경다지취결우원유군락적조성결구.근거자연회복과정중물충다양성적동태변화규률,결합해도실제,제출응재제치적지보식지대성식피적건군충혹우세충적건의,이봉부물충화경현다양성.
After a 17-year natural restoration period on Zhoushan Island,a reaurvey of seven typical pine plots of masson pine(Pinus,massoninana),Japanese black pine(Pinus thunbergii),and combinations of broadleaf and conifer forests,set up before occurrence of the pine wilt disease,was undertaken.Results showed that sample sites evolved to conifer-broadleaf mixed forest or broadleaf forest types with diversity of the tree layer increasing.Ranking of tree layer diversity was as follows:succession of pure masson pine foreat to deciduous broadleaf forest and mixed,evergreen and deciduous broadleaf forest>succession of Japanese black pine forest to deciduous broadleaf forest>succession of pure masson pine forest to conifer and broadleaf mixed forest>succession of a mixed forest of Japanese black pine and broadleaf trees to deciduous broadleaf forest>succession of a mixed forest of mascon pine and broadleaf trees to evergreen and deciduous broadleaf mixed forest.Also,in the mixed forest of masson pine and broadleaf trees,diversity of regeneration layer and shrub layer decreased,in the Japanese black pine forest diversity of the regeneration layer increased,other forest stands changed little,and diversity of the herb layer decreased.After natural restoration,diversity of vegetation types exhibited little similarity.Based on the dynamic variation rule of species diversity during natural restoration as well as conditions on Zhoushan Island.species diversity should be enriched and the landscape improved with island native zonal vegetation.