气候变化领域集成服务门户(CCPortal): Modeling whole-stand survival in clonal eucalypt stands in Brazil as a function of water availability

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DOI	10.1016/j.foreco.2018.10.044
	Modeling whole-stand survival in clonal eucalypt stands in Brazil as a function of water availability
	Scolforo H.F.; McTague J.P.; Burkhart H.; Roise J.; Alvares C.A.; Stape J.L.
发表日期	2019
ISSN	0378-1127
起始页码	1002
结束页码	1012
卷号	432
英文摘要	Several approaches for modeling whole-stand survival or mortality have been reported in the literature, although this component is often times neglected for clonal eucalypt stands in Brazil. In addition, the traditional form for projecting whole-stand survival appears incomplete for clonal eucalypt stands, since this tree species is highly sensitive to lack of water in the environment. Consequently, this study aimed to define the best approach to estimate whole-stand survival in clonal eucalypt stands and to develop a new approach for modeling whole-stand survival as a function of cumulative soil water deficit. Remeasurement of sixteen research sites composed the database used in this study. At each research site, the same eleven eucalypt clones were planted in single block plots, which results in a total of 176 plots distributed across Brazil. Two traditional approaches (two-step approach and direct estimation) were tested for modeling whole-stand survival. Additionally a new approach that replaces the age term by cumulative soil water deficit (cumulative SWD) was compared to the best selected traditional approach to estimate whole-stand survival in clonal eucalypt stands. The direct projection approach of whole-stand survival displayed better results when compared to the two-step approach. In addition, the replacement of age by cumulative SWD in the direct estimation approach allowed for an increase in the explanatory ability of the developed difference model. The newly developed difference model employing the direct estimation approach constrained by cumulative SWD ensures that the environmental stress effect is reflected on the survival of clonal eucalypt stands over time, and it is more biologically sound for extrapolation purposes. © 2018 Elsevier B.V.
英文关键词	Direct estimation; Environmental stress; Tree mortality
语种	英语
scopus关键词	Environmental microbiology; Plants (botany); Soil moisture; Direct projections; Environmental stress; Estimation approaches; Soil water deficit; Traditional approaches; Tree mortality; Two-step approach; Water availability; Forestry; clonal organism; environmental stress; estimation method; evergreen tree; mortality; stand structure; survival; water availability; Age; Brazil; Estimation; Forestry; Research; Survival; Brazil
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156313
作者单位	Department of Forestry and Environmental Resources, North Carolina State University, 2820 Faucette Dr., Campus Box 8001, Raleigh, NC 27695, United States; Department of Forest Resources and Environmental Conservation, Virginia Polytechnic Institute and State University, 310 W Campus Dr, Campus Box 169, Blacksburg, VA 24061, United States; Forestry Science and Research Institute, Via Comendador Pedro Morganti, 3500 – Bairro Monte Alegre, Piracicaba, São Paulo 13415-000, Brazil; Department of Forest Science, State University of São Paulo, Avenida Universitária, n° 3780, Botucatu, São Paulo 18610-034, Brazil; Department of Forest Science, University of São Paulo, Avenida Pádua Dias, 11, Piracicaba, São Paulo 13418-900, Brazil
推荐引用方式 GB/T 7714	Scolforo H.F.,McTague J.P.,Burkhart H.,et al. Modeling whole-stand survival in clonal eucalypt stands in Brazil as a function of water availability[J],2019,432.
APA	Scolforo H.F.,McTague J.P.,Burkhart H.,Roise J.,Alvares C.A.,&Stape J.L..(2019).Modeling whole-stand survival in clonal eucalypt stands in Brazil as a function of water availability.Forest Ecology and Management,432.
MLA	Scolforo H.F.,et al."Modeling whole-stand survival in clonal eucalypt stands in Brazil as a function of water availability".Forest Ecology and Management 432(2019).