CAJ | 학술논문

以辽宁省老秃顶子国家级自然保护区近河岸带不同恢复阶段植物群落为研究对象，采用Shannon-Wiener系数（ H）和相似性百分率公式计算不同群落主要物种的生态位宽度和生态位重叠。结果表明：乔木层中的蒙古栎（ Quercus mongolica）、假色槭（ Acer pseudo-sieboldianum）、山杨（ Populus davidiana）、色木槭（ Acer mono）的生态位宽度较高，并且它们之间的重叠也大。灌木层和草本层的物种生态位宽度基本都大于0．1，但物种生态位重叠值较小。生态位宽度与生态位重叠没有必然的联系，态位重叠跟物种的竞争不一定有密切关系，物种之间生态位重叠较大不一定导致竞争。
이요녕성로독정자국가급자연보호구근하안대불동회복계단식물군락위연구대상，채용Shannon-Wiener계수（ H）화상사성백분솔공식계산불동군락주요물충적생태위관도화생태위중첩。결과표명：교목층중적몽고력（ Quercus mongolica）、가색축（ Acer pseudo-sieboldianum）、산양（ Populus davidiana）、색목축（ Acer mono）적생태위관도교고，병차타문지간적중첩야대。관목층화초본층적물충생태위관도기본도대우0．1，단물충생태위중첩치교소。생태위관도여생태위중첩몰유필연적련계，태위중첩근물충적경쟁불일정유밀절관계，물충지간생태위중첩교대불일정도치경쟁。
With rehabilitating water and soil conservation vegetation on near riparian zone of Laotudingzi National Nature Re-serve, Liaoning Province, we used Shannon-Wiener coefficients ( H) and similarity percentage to calculate niche breadths and niche overlaps of main species in different communities.Niche breadths of Quercus mongolica, Acer pseudo-sieboldia-num, Populus davidiana and Acer mono in tree layers are higher with high overlaps among them.The species niche breadths of shrub layers and herb layers are greater than 0.1, but their niche overlaps are small.