气候变化领域集成服务门户(CCPortal): Predicting phosphorus use efficiency and allocation in eucalypt plantations

CCPortal

DOI	10.1016/j.foreco.2019.117859
	Predicting phosphorus use efficiency and allocation in eucalypt plantations
	Valadares S.V.; Neves J.C.L.; Leite H.G.; de Barros N.F.; Cropper W.P.; Jr.; Gerber S.
发表日期	2020
ISSN	0378-1127
卷号	460
英文摘要	Low phosphorus availability is a key constraint for plant growth in tropical soils. Unlike most cultivated crops, recommendations of phosphates and other fertilizers for part of the commercial eucalypt stands in Brazil are based on nutrient budget modelling. Nutrient use efficiency and allocation between plant tissues are important variables in these models. Here, we use data from previous studies to generate a set of equations to predict phosphorus use efficiency (PUE) and allocation (PA) within eucalypt stands. Specifically, we fitted sigmoidal models with commonly data available for climate and stand characteristics as predictors of PUE and PA. Our PUE estimates were also used to estimate the aboveground phosphorus content (APC) in the stands. Using an 80/20 data split for parameterization and evaluation, we found that our functions were suitable for predicting PUE, PA and APC. The equations presented here may be used to estimate nutrient needs and exports in even-aged eucalypt stands and to facilitate parametrization of empirical and mechanistic models. © 2020 Elsevier B.V.
英文关键词	Eucalyptus spp.; Nutrient management; Nutrient use efficiency; Phosphorus partitioning
语种	英语
scopus关键词	Budget control; Climate models; Efficiency; Forecasting; Nutrients; Phosphate fertilizers; Phosphorus; Eucalypt plantations; Eucalyptus spp; Mechanistic models; Nutrient management; Nutrient-use efficiencies; Phosphorus contents; Phosphorus use efficiencies; Stand characteristics; Forestry; evergreen tree; nutrient budget; nutrient use efficiency; parameterization; phosphorus; plantation forestry; Cost Control; Efficiency; Forecasts; Forestry; Nutrients; Phosphorus; 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/155482
作者单位	Soil Department, Federal University of Viçosa – UFV, Av. P.H. Rolfs s/n., Viçosa (MG), CEP 36570-900, Brazil; Forest Department UFV, Av. P.H. Rolfs s/n., Viçosa (MG), CEP 36570-900, Brazil; School of Forest Resources and Conservation, Univ. of Florida, 214 Newins-Ziegler Hall, Gainesville, FL 32611, United States; Soil and Water Sciences, Dep. Univ. of Florida, P.O. Box 110290, Gainesville, FL 32611, United States
推荐引用方式 GB/T 7714	Valadares S.V.,Neves J.C.L.,Leite H.G.,et al. Predicting phosphorus use efficiency and allocation in eucalypt plantations[J],2020,460.
APA	Valadares S.V..,Neves J.C.L..,Leite H.G..,de Barros N.F..,Cropper W.P..,...&Gerber S..(2020).Predicting phosphorus use efficiency and allocation in eucalypt plantations.Forest Ecology and Management,460.
MLA	Valadares S.V.,et al."Predicting phosphorus use efficiency and allocation in eucalypt plantations".Forest Ecology and Management 460(2020).