文献类型：期刊文献

英文题名：Species Mixing Improves Tree Growth and Timber Quality of Chinese Fir in Mixtures with Broad-Leaved Species in Central China

作者：Yin, Zaifang[1] Jiao, Jiejie[2] Sun, Honggang[1,3] Chen, Jinhu[4]

第一作者：Yin, Zaifang

通信作者：Sun, HG[1];Sun, HG[2]

机构：[1]Res Inst Subtrop Forestry, Chinese Acad Forestry, Hangzhou 311400, Peoples R China;[2]Zhejiang Acad Forestry, Hangzhou 310023, Peoples R China;[3]Chinese Acad Forestry, Res Inst Fast Growing Trees, State Key Lab Efficient Prod Forest Resources, Hangzhou 310023, Peoples R China;[4]Fengshushan Forestry Farm Jingdezhen, Jingdezhen 333000, Peoples R China

年份：2024

卷号：15

期号：11

外文期刊名：FORESTS

收录：;EI(收录号：20244817445516);Scopus(收录号：2-s2.0-85210298650);WOS:【SCI-EXPANDED(收录号:WOS:001367690800001)】；

基金：This research was funded by the National Key Technologies Research and Development Program of China (grant no. 2021YFD2201303-03).

语种：英文

外文关键词：overyielding; species composition; tree morphology; timber outturn structure

摘要：Mixed stands of tree species with complementary traits can modulate stand growth and timber quality. At the Fengshushan Forest Farm, mixtures of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) with Liquidambar formosana Hance, Schima superba Gardner & Champ., Elaeocarpus sylvestris (Lour.) Poir., Cinnamomum camphora (L.) Presl, and Chinese fir monoculture were established. Differences in stand growth and timber quality among these mixtures were assessed and a test was conducted to evaluate the factors influencing the mixture effects. The average diameter at breast height, tree height, stand volume, and individual tree annual increment of mixtures generally exceeded those of Chinese fir monocultures but not necessarily those of broad-leaved monocultures. When the net interaction between species was complementary, overyielding in mixtures occurred (RPfir,bl > 0), which was influenced significantly by stand density, soil properties, and timber quality. The timber quality and wood production of Chinese fir were enhanced by mixture with some broad-leaved species, with reduced slenderness and knottiness in mixtures, and notable increases in medium- (average outturn rates of 56.13%) and large-diameter (11.71%) timber in C. lanceolata/C. camphora mixture. The growth and timber quality of Chinese fir are largely promoted when grown mixed with broad-leaved species. Overyielding at the stand level occurs where Chinese fir compensates for the underperformance of broad-leaved trees.