Productivity and species diversity of artificial broad-leaved Korean pine forests in eastern Liaoning mountainous areas

Abstract

Abstract: An investigation in the typical plots of 20-yr artificial broad-leaved Korean pine forests in eastern Liaoning mountainous areas showed that the productivity of mixed forests Pinus koraiensis-Betula platyphylla,P.koraiensis-Alnus tinctoria,and P.koraiensis-Fraxinus mandshurica was 6.529,4.966 and 5.682 t·hm^-2·yr^-1,respectively,much higher than that of pure Korean pine forest (3.812 t·hm^-2·yr^-1),while mixed forests P.koraiensis-Kalopanax septemlobus and P.koraiensis-Tilia amurensis had a productivity of 2.945 and 2.84 t·hm^-2·yr^-1,respectively,lower than that of pure Korean pine forest.The plant species diversities of arbor,shrub and herb layers of artificial broad-leaved Korean pine forests were all higher than those of pure Korean pine forests.The plant species number in pure Korean pine forests only accounted for 42%～52% of artificial broad-leaved Korean pine forests,and the tree number of vegetation only accounted for 11%～37% of mixed forests.These results suggested that artificial broad-leaved Korean pine forests could provide the chances for the succession of secondary forest systems to regional climax,but it would take a long time to reach the climax.

Key words: Artificial broad-leaved Korean pine forest, Species diversity, Productivity

CLC Number:

S718
S792

YU Lizhong, ZHU Jiaojun, SHI Jianwei, YU Shuiqiang, WANG Zuomei, LU Zhengmao, DING Guoquan . Productivity and species diversity of artificial broad-leaved Korean pine forests in eastern Liaoning mountainous areas[J]. Chinese Journal of Applied Ecology, 2005, 16(12): 2225-2230.

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