干旱区生态环境知识资源中心(Arid): Dynamic Model for Caragana korshinskii Shrub Aboveground Biomass Based on Theoretical and Allometric Growth Equations

Arid

DOI	10.3390/f13091444
	Dynamic Model for Caragana korshinskii Shrub Aboveground Biomass Based on Theoretical and Allometric Growth Equations
	Jin, Xuejuan; Xu, Hao; Wang, Bo; Wang, Xiaohua
通讯作者	Xu, H
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:9
英文摘要	As one of the ways to achieve carbon neutralization, shrub biomass plays an important role for natural resource management decision making in arid regions. To investigate biomass dynamic variations of Caragana korshinskii, a typical shrub found in the arid desert area of Ningxia, northwest China, we combined a nonlinear simultaneous (NLS) equation system with theoretical growth (TG) and allometric growth (AG) equations. On the basis of a large biomass survey dataset and analytical data of shrub stems, four methods (NOLS, NSUR, 2SLS, and 3SLS) of the NLS equations system were combined with the TG and AG equations. A model was subsequently established to predict the AGB growth of C. korshinskii. The absolute mean residual (AMR), root mean system error (RMSE), and adjusted determination coefficient (adj-R-2) were used to evaluate the performance of the equations. Results revealed that the NSUR method of the NLS equations had better performance than other methods and the independent equations for BD and H growth and AGB. Additionally, the NSUR method exhibited extremely significant differences (p < 0.0001) when compared with the equations without heteroscedasticity on the basis of the likelihood ratio (LR) test, which used the power function (PF) as the variance function. The NSUR method of the NLS equations was an efficient method for predicting the dynamic growth of AGB by combining the TG and AG equations and could estimate the carbon storage for shrubs accurately, which was important for stand productivity and carbon sequestration capacity.
英文关键词	theoretical growth equation allometric growth equation nonlinear simultaneous equations system heteroscedasticity Caragana korshinskii shrub
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000856401900001
WOS关键词	RADIAL GROWTH ; TREES ; ADDITIVITY ; HEIGHT ; FOREST
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392629
推荐引用方式 GB/T 7714	Jin, Xuejuan,Xu, Hao,Wang, Bo,et al. Dynamic Model for Caragana korshinskii Shrub Aboveground Biomass Based on Theoretical and Allometric Growth Equations[J],2022,13(9).
APA	Jin, Xuejuan,Xu, Hao,Wang, Bo,&Wang, Xiaohua.(2022).Dynamic Model for Caragana korshinskii Shrub Aboveground Biomass Based on Theoretical and Allometric Growth Equations.FORESTS,13(9).
MLA	Jin, Xuejuan,et al."Dynamic Model for Caragana korshinskii Shrub Aboveground Biomass Based on Theoretical and Allometric Growth Equations".FORESTS 13.9(2022).