文献类型：期刊文献

英文题名：Growth and structure development of semi-natural larch-spruce-fir (Larix olgensis-Picea jezoensis-Abies nephrolepis) forests in northeast China: 12-year results after thinning

作者：Lei, Xiangdong[1] Lu, Yuanchang[1] Peng, Changhui[2] Zhang, Xiaopeng[3] Chang, Jie[4] Hong, Lingxia[1]

第一作者：雷相东

通信作者：Lei, X.

机构：[1] Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing, 100091, China; [2] Institute of Environment Sciences, University of Quebec at Montreal [UQAM], Montreal, H3C 3P8, Canada; [3] Institute of Automation, Chinese Academy of Science, Beijing, 100080, China; [4] College of Life Sciences, Zhejiang University, Hangzhou, 310012, China

年份：2007

卷号：240

期号：1-3

起止页码：165-177

外文期刊名：Forest Ecology and Management

收录：EI(收录号：20070710423445);Scopus(收录号：2-s2.0-33846855535)

语种：英文

外文关键词：Forestry - Growth kinetics

摘要：Analyzing and understanding the structure and growth dynamics of semi-natural plantations is useful for their management. Since 1987, 16 plots with 4 treatments (CT: control; LT: light thinning; MT: medium thinning; and HT: heavy thinning) by 0, 20, 30 and 40% of basal area removal, respectively, and four replications were established in semi-natural larch-spruce-fir forests in northeast China. The structure and growth dynamics of semi-natural larch-spruce-fir stands and the effects of thinning on the growth, structure and diversity were examined. A mixed model repeated measures analysis of variance (RMANOVA) was used to test the effects of treatment and time. Results showed that differences in periodic annual increment (PAI) of stand basal area and volume and the individual diameter and volume among treatments changed over time in a complex statistical interaction. Thinning, however, had a significant effect on growth at tree and stand levels 12 years after thinning while the PAI of the diameter, basal area and volume was positively correlated with thinning intensity. No significant differences were found in the total stand yield among treatments. Composition of tree species group (larch, other conifers and deciduous trees) during monitoring years did not change significantly. Moreover, no significant differences were observed in tree species and size diversity among treatments in the years following thinning. Both thinning and control plots had similar understory plant diversity after the 12 year period. Univariate point pattern analysis revealed that clumped and random distributions were dominant for tree species groups in this study. The current species composition and regeneration dynamics within these semi-natural plantations suggested a development towards mixed coniferous and broad-leaved forests. Management implications for the transformation from larch plantations towards mixed broad-leaved Korean forests with a more diverse structure, the climax vegetation in this region, were discussed. ? 2006 Elsevier B.V. All rights reserved.