气候变化领域集成服务门户(CCPortal): Stand-level growth and yield model system for clonal eucalypt plantations in Brazil that accounts for water availability

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DOI	10.1016/j.foreco.2019.06.006
	Stand-level growth and yield model system for clonal eucalypt plantations in Brazil that accounts for water availability
	Scolforo H.F.; McTague J.P.; Burkhart H.; Roise J.; McCarter J.; Alvares C.A.; Stape J.L.
发表日期	2019
ISSN	0378-1127
起始页码	22
结束页码	33
卷号	448
英文摘要	Growth and yield (G &Y) model systems aim at forecasting forest productivity. The lack of environmental variables to account for how water availability constrains eucalyptus production in Brazil, however, is argued to be a major drawback of these model systems. Thus, this study aimed to develop a stand-level G & Y model system that accounts for water availability (G & Y with SWD), highlighting its usefulness when applied for clonal eucalypt stands under drier climatic conditions. The dataset is composed of remeasurement information of sixteen research sites that span all climatic regions in Brazil. A total of eleven eucalypt clones were planted in single block plots at each site, and extra replications under the rainfall exclusion system were also installed for these eleven clones in fourteen sites. Linear algebra techniques were used to simultaneously fit a compatible set of prediction and projection basal area equations. A stand-level volume equation was also developed. These equations were validated through the use of an independent dataset composed of the rainfall exclusion plots. Finally, the accuracy and usefulness of a conventional G & Y model system applied to clonal eucalypt stands in Brazil was compared to the new proposed G & Y model system, which accounts for the impact of water availability in eucalyptus productivity. The prediction and projection basal area equations accounting for water availability displayed estimates in the order of 5% more accurate compared to the conventional basal area modeling. Stand-level volume estimates were 40% and 74% less biased through the use of the new G & Y model system. This result highlighted how useful and powerful the newly developed approach is, since the model system was capable to provide accurate estimates through the use of the rainfall exclusion plots. The new G & Y model system is a powerful alternative to estimate forest afforestation yield and is fully capable to accurately update forest inventories. The model system can also be used for projecting how forest growth may be impacted by short-term climate variation. © 2019 Elsevier B.V.
英文关键词	Accuracy; Basal area; Climatic water deficit; Environment; Forest production; Volume
语种	英语
scopus关键词	Cloning; Forecasting; Linear algebra; Productivity; Rain; Reforestation; Accuracy; Basal area; Environment; Forest production; Volume; Water deficits; Climate models; accuracy assessment; afforestation; basal area; clonal organism; evergreen tree; growth rate; plantation forestry; stand structure; water availability; water stress; yield response; Accuracy; Basal Area; Forecasts; Productivity; Rain; Reforestation; Brazil; Eucalyptus
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/155891
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, no 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. Stand-level growth and yield model system for clonal eucalypt plantations in Brazil that accounts for water availability[J],2019,448.
APA	Scolforo H.F..,McTague J.P..,Burkhart H..,Roise J..,McCarter J..,...&Stape J.L..(2019).Stand-level growth and yield model system for clonal eucalypt plantations in Brazil that accounts for water availability.Forest Ecology and Management,448.
MLA	Scolforo H.F.,et al."Stand-level growth and yield model system for clonal eucalypt plantations in Brazil that accounts for water availability".Forest Ecology and Management 448(2019).