文献类型：期刊文献

英文题名：Self-Thinning Trajectories of Chinese Fir Plantations in Southern China

作者：Zhang, Xiongqing[1,2] Cao, Quang V.[3] Duan, Aiguo[1,2] Zhang, Jianguo[1,2]

第一作者：张雄清;Zhang, Xiongqing

通信作者：Zhang, JG[1];Zhang, JG[2]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat State Forestry A, Res Inst Forestry, Beijing, Peoples R China;[2]Nanjing Forestry Univ, Collaborat Innovat Ctr Sustainable Forestry South, Nanjing, Jiangsu, Peoples R China;[3]Louisiana State Univ, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA

年份：2016

卷号：62

期号：6

起止页码：594-599

外文期刊名：FOREST SCIENCE

收录：;EI(收录号：20170103208909);Scopus(收录号：2-s2.0-85007299595);WOS:【SCI-EXPANDED(收录号:WOS:000390180900002)】；

基金：We express appreciations to the Scientific and Technological Task in China (No. 2015BAD09B01), the special fund of the Chinese Academy of Forestry (CAFYBB2014QB002), the National Natural Science Foundation of China (No. 31670634, 31300537), and the Beijing Natural Science Foundation (8152033).

语种：英文

外文关键词：Chinese fir plantations; joint point; self-thinning line; segmented model

摘要：Chinese fir (Cunninghamia lanceolate [Lamb.] Hook.) is the most important conifer species for timber production with a wide geographic distribution in southern China. Self-thinning is a dynamic equilibrium between forest growth and mortality in fully stocked stands. In this study, the segmented model was used to analyze the trajectory of stand density and quadratic mean diameter of Chinese fir plantations. Results showed that a linear-quadratic-linear model could simulate the self-thinning trajectories of Chinese fir plantations well. For a given province, the self-thinning slope was invariant with changes in planting densities. The self-thinning trajectories in Jiangxi and Fujian provinces were similar and were different from those in Guangxi and Sichuan provinces. The slope of the self-thinning line of Chinese fir plantations in Sichuan province was much steeper than that of the other three provinces (-4.2169 versus -2.4453). These slopes were steeper than the value of -1.605 as proposed by Reineke for many species.