中亚热带常绿阔叶林林隙与物种多样性的关系研究

Studies on the relationship between gaps and species diversity of mid-subtropical evergreen broad-leaved forest

摘要: 对万木林中亚热带常绿阔叶林非林隙与林隙内物种多样性及物种多样性随林隙大小的变化规律研究结果表明，万木林常绿阔叶林林隙内物种多样性高于非林隙内，乔木树种物种多样性随林隙大小的变化呈双峰曲线，其物种多样性为200～300m²面积林隙内达最大值；而灌木树种多样性随林隙大小的变化呈单峰曲线，其物种多样性为400～500m²面积林隙内达最大值。

Abstract: The species diversity of mid-subtropical evergreen broad-leaved forest in Wanmulin Natural Reserve Zone was measured and the relationship between species diversity and gap size was studied.The results show that the species diversity with gaps of forest is higher than that without gaps of forest.The arbor species diversity changes with gap size,revealing a bimodal;the species diversity peaks at the gap sizes of 200～300m².The shrub species diversity changes with the gap size too,revealing a unimodel; the species diversity peaks at the gap sizes of 400～500m².