文献类型：期刊文献

英文题名：Positive Relationship between Aboveground Carbon Stocks and Structural Diversity in Spruce-Dominated Forest Stands in New Brunswick, Canada

作者：Wang, Weifeng[1] Lei, Xiangdong[2] Ma, Zhihai[1] Kneeshaw, Daniel D.[3] Peng, Changhui[1]

第一作者：Wang, Weifeng

通信作者：Peng, CH[1]

机构：[1]Univ Quebec, Dept Sci Biol, Inst Sci Environm, Montreal, PQ H3C 3P8, Canada;[2]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[3]Univ Quebec, Ctr Etud Foret, Montreal, PQ H3C 3P8, Canada

年份：2011

卷号：57

期号：6

起止页码：506-515

外文期刊名：FOREST SCIENCE

收录：;EI(收录号：20122815235461);Scopus(收录号：2-s2.0-84863589860);WOS:【SCI-EXPANDED(收录号:WOS:000298512100007)】；

基金：This study was supported by a National Science and Engineering Research Council of Canada Discover grant, Strategic Project Grant, and Strategic Network (ForValueNet). We thank the associate editor, Dr Andrew Burton, and two anonymous reviewers for their constructive comments and also thank Dale Wilson of the New Brunswick Department of Natural Resources for providing the New Brunswick permanent sample plot data used for this study and Brian Doonan for his help on English editing.

语种：英文

外文关键词：forest management; niche complementarity hypothesis; Shannon-Wiener index; stand structure

摘要：Maintaining both the structure and functionality of forest ecosystems is a primary goal of forest management. In this study, relationships between structural diversity and aboveground stand carbon (C) stocks were examined in spruce-dominated forests in New Brunswick, Canada. Tree species, size, and height diversity indices as well as a combination of these diversity indices were used to correlate aboveground C stocks. Multiple linear regressions were subsequently used to quantify the relationships between these indices and aboveground C stocks, and partial correlation analysis was also adopted to remove the effects of other explanatory variables. Results show that stand structural diversity has a significant positive effect on aboveground C stocks even though the relationship is weak overall. Positive relationships observed between the diversity indices and aboveground C stocks support the hypothesis that increased structural diversity enhances aboveground C storage capacity. This occurs because complex forest structures allow for greater light infiltration and promote a more efficient resource use by trees, leading to an increase in biomass and C production. Mixed tolerant species composition and uneven-aged stand management in conjunction with selection or partial cutting to maintain high structural diversity is therefore recommended to preserve biodiversity and C stocks in spruce-dominated forests. FOR. SCI. 57(6):506 515.