文献类型：期刊文献

英文题名：Deriving tree growth models from stand models based on the self-thinning rule of Chinese fir plantations

作者：Zhang, Xiongqing[1,2] Cao, Quang, V[3] Qu, Yancheng[1] Zhang, Jianguo[1]

第一作者：Zhang, Xiongqing;张雄清

通信作者：Zhang, JG[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China;[2]Nanjing Forestry Univ, Collaborat Innovat Ctr Sustainable Forestry South, Nanjing 210037, Peoples R China;[3]Louisiana State Univ, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA

年份：2022

卷号：15

期号：1

起止页码：1-7

外文期刊名：IFOREST-BIOGEOSCIENCES AND FORESTRY

收录：;Scopus(收录号：2-s2.0-85139239264);WOS:【SCI-EXPANDED(收录号:WOS:000930984700001)】；

基金：The study was supported by the National Key Research and Development Program of China (2021YFD2201304) and the National Natural Science Foundation of China (no. 31971645). Partial support for data analysis was received from the National Institute of Food and Agriculture, U.S. Department of Agriculture, Mclntire-Stennis project LAB-94379. The authors thank Dr. Aiguo Duan for the field work.

语种：英文

外文关键词：Chinese Fir; Self-thinning Rule; Disaggregation; Stand Model; Tree Model

摘要：Self-thinning due to density-dependent mortality usually occurs during the forest development. To improve predictions of such processes during forest successions under climate change, reliable stand-level models are needed. In this study, we developed an integrated system of tree- and stand-level models by deriving tree diameter and survival models from stand growth and survival models based on climate-sensitive self-thinning rule of Chinese fir plantations in subtropical China. The resulting integrated system, having a unified mathematical structure, should provide consistent estimates at both tree and stand levels. Predictions were reasonable at both stand and tree levels. Because stand-level values aggregated from the tree model outputs are different from those predicted directly from the stand models, the disaggregation approach was applied to provide numerical consistency between models of different resolutions. Compared to the unadjusted approach, predictions from the disaggregation approach were slightly worse for tree survival but slightly better for tree diameter. Because the stand models were developed under the climate-sensitive self-thinning trajectory, the integrated system could offer reasonable predictions that could aid in managing Chinese fir plantations under climate change.