文献类型：期刊文献

英文题名：General allometric equations and biomass allocation of Pinus massoniana trees on a regional scale in southern China

作者：Xiang, Wenhua[1] Liu, Shaohui[1,2] Deng, Xiangwen[1] Shen, Aihua[3] Lei, Xiangdong[4] Tian, Dalun[1] Zhao, Meifang[1] Peng, Changhui[1,5]

第一作者：Xiang, Wenhua

通信作者：Xiang, WH[1]

机构：[1]Cent S Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China;[2]China State Forestry Adm, Dept Dev Planning & Assets Management, Beijing 100714, Peoples R China;[3]Zhejiang Forestry Acad, Hangzhou 310023, Zhejiang, Peoples R China;[4]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[5]Univ Quebec, Dept Biol Sci, Inst Environm Sci, Montreal, PQ H3C 3P8, Canada

年份：2011

卷号：26

期号：4

起止页码：697-711

外文期刊名：ECOLOGICAL RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000295808500002)】；

基金：This study received grants from the China Natural Science Foundation (No. 30771720), the Introducing Advanced Technology program (948 Program) (No. 2006-4-21), the New Century Excellent Talents program (No. NCET-06-0715), the program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, and the Furong Scholar program. The authors would like to thank Mr. Yuanjun Xing for his assistance in producing the map of P. massoniana natural distribution and the locations of the study sites.

语种：英文

外文关键词：Pinus massoniana; Allometric equation; Tree biomass carbon; Regional scale; Southern China subtropical region

摘要：Applying allometric equations in combination with forest inventory data is an effective approach to use when qualifying forest biomass and carbon storage on a regional scale. The objectives of this study were to (1) develop general allometric tree component biomass equations and (2) investigate tree biomass allocation patterns for Pinus massoniana, a principal tree species native to southern China, by applying 197 samples across 20 site locations. The additive allometric equations utilized to compute stem, branch, needle, root, aboveground, and total tree biomass were developed by nonlinear seemingly unrelated regression. Results show that the relative proportion of stem biomass to tree biomass increased while the contribution of canopy biomass to tree biomass decreased as trees continued to grow through time. Total root biomass was a large biomass pool in itself, and its relative proportion to tree biomass exhibited a slight increase with tree growth. Although equations employing stem diameter at breast height (dbh) alone as a predictor could accurately predict stem, aboveground, root, and total tree biomass, they were poorly fitted to predict the canopy biomass component. The inclusion of the tree height (H) variable either slightly improved or did not in any way increase model fitness. Validation results demonstrate that these equations are suitable to estimate stem, aboveground, and total tree biomass across a broad range of P. massoniana stands on a regional scale.