文献类型：期刊文献

英文题名：Tree species mixing effects on the radial growth of Pinus massoniana and Castanopsis hystrix : A comparison between even-aged and uneven-aged stands

作者：Chen, Renjie[1] Guo, Xiali[1] Li, Qidong[1] Ming, Angang[2,3] Min, Huilin[2,3] Shen, Weijun[1,4]

第一作者：Chen, Renjie

通信作者：Shen, WJ[1]

机构：[1]Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, State Key Lab Conservat & Utilizat Agrobioresource, Nanning 530004, Guangxi, Peoples R China;[2]Chinese Acad Forestry, Expt Ctr Trop Forestry, Pingxiang 532600, Peoples R China;[3]Youyiguan Forest Ecosyst Observat & Res Stn Guangx, Guangxi Youyiguan Forest Ecosyst Res Stn, Pingxiang 532600, Peoples R China;[4]Chinese Acad Sci, Inst Appl Ecol, Natl Lab Forest Ecol & Conservat, Shenyang 110016, Peoples R China

年份：2024

卷号：566

外文期刊名：FOREST ECOLOGY AND MANAGEMENT

收录：;EI(收录号：20242416254256);Scopus(收录号：2-s2.0-85195632949);WOS:【SCI-EXPANDED(收录号:WOS:001253197800001)】；

基金：This research was financially supported by the National Natural Science Foundation of China (No. 32271847, 32201543 and 32071764) , the Guangxi Science and Technology Base and Talent Special Project (AD23026326) . the Natural Science Foundation of Guangxi Province (2020GXNSFAA297208) , and the Junwu Scholarship of Guangxi Uni-versity (No. A3360051012) . We are grateful to Jingye Li for his valuable guidance during the initial stages of the experiment. We also thank Xinyu Luo for her assistance in the tree-ring measurement.

语种：英文

外文关键词：Even-aged mixed plantation; Uneven-aged mixed plantation; Pinus massoniana; Castanopsis hystrix; Growth dynamics; Temporal stability; Climate variation

摘要：The establishment of mixed -species forests with complex structures and high biodiversity has emerged as a key approach for enhancing productivity and maintaining the stability of plantation forests. However, how the mixing effect changes with stand development and climate variation is still unclear. Additionally, little is known about how the mixing effects vary between even- and uneven -aged mixed planting strategies based on the same species combinations and site conditions. In this study, we used dendrochronological methods to reconstruct 37 years of annual growth series for even -aged mixed plantations (EMs) and uneven -aged mixed plantations (UEMs) of Pinus massoniana and Castanopsis hystrix , as well as their respective monocultures at the individual tree (286 trees in total) level. We found that in EMs, the growth of P. massoniana and C. hystrix was 20.8 % lower and 26.2 % higher than those of their monocultures, respectively. However, the growth of P. massoniana remained unchanged during the first 17 years of mixing, after which it was significantly suppressed by C. hystrix . The growth of P. massoniana and C. hystrix in the UEMs was 20.8 % and 26.2 % lower than that in their monocultures, respectively. Remarkably, the mixing effect on the growth of P. massoniana shifted from suppression to promotion after 30 years of mixing. Furthermore, the relative growth of P. massoniana in the UEMs increased with dry season precipitation. These results indicate that transforming pure plantations into uneven -aged mixed plantations may be a crucial forest management strategy for enhancing tree growth and to improving adaptation to future precipitation pattern changes. However, in EMs, thinning should be conducted before fast-growing, shade -intolerant species experience intense light competition.