CAJ | 학술논문

通过野外实地调查与相对干扰度计算,采用物种多样性指数及方差分析、相关分析等方法,对长白山北坡原始林(阔叶红松林)与2种次生林(杂木林与桦木林)的植物物种多样性进行了比较研究,并对影响物种多样性的可能因素进行了系统分析.结果表明:原始林共记录植物物种91种,分别隶属于46科72属;杂木林共记录植物物种128种,分别隶属于53科92属;桦木林共记录植物物种108种,分别隶属于52科87属.仅从Shannon-wiener多样性指数看,桦木林的乔木层、草本层和总体多样性均最小,而灌木层多样性最大;原始林在乔木层多样性小于杂木林,但是在灌木层、草本层和总体多样性均大于杂木林.原始林与次生林草本层的多样性较高,均大于相应的乔木层和灌木层.以原始林为参照,较大的干扰强度使乔木层多样性降低,而较小的干扰强度不仅不会降低乔木层多样性,反而可以增加其多样性;灌木、草本层的多样性受干扰的变化与乔木层相反.
통과야외실지조사여상대간우도계산,채용물충다양성지수급방차분석、상관분석등방법,대장백산북파원시림(활협홍송림)여2충차생림(잡목림여화목림)적식물물충다양성진행료비교연구,병대영향물충다양성적가능인소진행료계통분석.결과표명:원시림공기록식물물충91충,분별대속우46과72속;잡목림공기록식물물충128충,분별대속우53과92속;화목림공기록식물물충108충,분별대속우52과87속.부종Shannon-wiener다양성지수간,화목림적교목층、초본층화총체다양성균최소,이관목층다양성최대;원시림재교목층다양성소우잡목림,단시재관목층、초본층화총체다양성균대우잡목림.원시림여차생림초본층적다양성교고,균대우상응적교목층화관목층.이원시림위삼조,교대적간우강도사교목층다양성강저,이교소적간우강도불부불회강저교목층다양성,반이가이증가기다양성;관목、초본층적다양성수간우적변화여교목층상반.
A study was conducted to compare plant species diversity between primeval forest (broadleaved Korean pine forest) and secondary forests (mixed forest and birch forest) on the northern slope of Changbai Mountain based on the field inves-tigation and calculation of relative disturbance intensity. Factors that might influence species diversity were systematically analyzed. Results showed that 91 plant species belonging to 46 families and 72 genera in total were found in the primeval forest. There were 128 plant species in 53 families and 92 genera for the mixed forest, and only 108 plant species in 52 families and 87 genera for the birch forest. Based on Shannon-wiener index, it could be concluded that for the birch forest, the diversities of tree layer, herb layer and the total were the lowest, but the highest was found in shrub layer. The diversi-ty of tree layer in the primeval forest was lower than that in the mixed forest in canopy, but the opposite result existed in the diversities of shrub, herb layers and the total. For both primeval and secondary forests, the diversity of herb layer was higher than that of tree and shrub layers. Compared with the primeval forest, the species diversity of tree layer decreased when suffered stronger disturbance intensity, but increased under the impact of weaker disturbance intensity. The converse condition occurred in the changes of shrub and herb layers after disturbance.