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Allometric Equations for Volume, Biomass, and Carbon in Commercial Stems Harvested in a Managed Forest in the Southwestern Amazon: A Case Study
managed forests carbon sequestration state Acre Brazil tropical forest rainforest timber
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2024/1/19
Forests in the southwestern Amazon are rich, diverse, and dense. The region is of high ecological importance, is crucial for conservation and management of natural resources, and contains substantial ...
Allometric Equations for Estimating Biomass and Carbon Stocks in Afforested Open Woodlands with Black Spruce and Jack Pine, in the Eastern Canadian Boreal Forest
allometric equations black spruce jack pine boreal forest open woodland afforestation carbon sequestration
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2024/1/12
Allometric equations use easily measurable biometric variables to determine the aboveground and belowground biomasses of trees. Equations produced for estimating the biomass within Canadian forests at...
Developing Additive Systems of Biomass Equations for Robinia pseudoacacia L. in the Region of Loess Plateau of Western Shanxi Province, China
Robinia pseudoacacia L. Loess Plateau additive biomass models error structure likelihood analysis seemingly unrelated regression
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2024/1/12
The accurate estimation of forest biomass is important to evaluate the structure and function of forest ecosystems, estimate carbon sinks in forests, and study matter cycle, energy flow, and the effec...
Empowering Forest Owners with Simple Volume Equations for Poplar Plantations in the órbigo River Basin (NW Spain)
tree plantations growth equations rotation length growth rates poplar productivity
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2024/1/11
Hybrid poplar plantations are becoming increasingly important as a source of income for farmers in northwestern Spain, as rural depopulation and farmers aging prevent landowners from planting other la...
Allometric Equations to Estimate Aboveground Biomass in Spotted Gum (Corymbia citriodora Subspecies variegata) Plantations in Queensland
biomass prediction crown volume cross-validatory assessment destructive sampling hardwood plantation weighted nonlinear models
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2023/12/6
Accurate equations are critical for estimating biomass and carbon accumulation for forest carbon projects, bioenergy, and other inventories. Allometric equations can provide a reliable and accurate me...
Additive Root Biomass Equations for Betula platyphylla Suk. Plantations in Northeast China
Betula platyphylla root biomass additive equation disaggregated model
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2023/12/6
Most of the forest biomass models that have been developed so far focus on the study of the aboveground biomass of forest trees and the prediction of belowground biomass remains obviously insufficient...
Validation of Prediction Equations of Energy Values of a Single Ingredient or Their Combinations in Male Broilers
Energy Prediction Equation Feed Formulation Poultry
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2016/5/18
A set of prediction equations to estimate the nitrogen-corrected apparent metabolizable energy (AMEn) of individual ingredients and diets used in the poultry feed industry was evaluated. The AMEn valu...
Allometric equations for predicting aboveground biomass of beech-hornbeam stands in the Hyrcanian forests of Iran
climate change mitigation carbon stock
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2015/5/5
A better understanding of the carbon biomass from forests is needed to improve both models and mitigation efforts related to the global C cycle and greenhouse gas mitigation.
Estimation of leaf area index and assessment of its allometric equations in oak forests: Northern Zagros, Iran
allometric relationships destructive sampling leaf area index Quercus libani Oliv. specific leaf area
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2015/4/14
The focus of the present study is the estimation of leaf area index (LAI) and the assessment of allometric equations for predicting the leaf area of Lebanon oaks (Quercus libani Oliv.) in Iran’s north...
Using linear mixed model and dummy variable model approaches to construct compatible single-tree biomass equations at different scales – A case study for Masson pine in Southern China
aboveground biomass dummy variable model linear mixed model Pinus massoniana
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2015/4/14
The estimation of forest biomass is important for practical issues and scientific purposes in forestry. The estimation of forest biomass on a large-scale level would be merely possible with the applic...
Detrending ability of several regression equations in tree-ring research: a case study based on tree-ring data of Norway spruce (Picea abies [L.])
radial increment growth functions empirical fitting tree-ring indices dendroclimatology
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2015/3/27
The aim of this study was to investigate tree-ring width variability and to distinguish groups of trees with similar growth trends in order to study tree growth responses to various stand and site con...
Estimating the sample size for fitting taper equations
sampling methods tree shape regression
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2015/3/12
Much work has been done fitting taper equations to describe tree bole shapes, but few researchers have investigated how large the sample size should be. In this paper, a method that requires two varia...
Validation of Prediction Equations to Estimate the Energy Values of Feedstuffs for Broilers: Performance and Carcass Yield
Broiler Feed Energy Value
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2016/5/12
The objective was to evaluate the use of prediction equations based on the chemical composition of feedstuffs to estimate the values of apparent metabolisable energy corrected for nitrogen balance (AM...
The Conformability of Two Equations for Bacterial Growth in Pork
logistic equation mathematical model micro-organismus Gompertz
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2014/3/14
Pork is now distributed as cut meat, which increases the chance of contamination with bacteria. The rate of bacterial growth can
be expressed by an exponential function. In order to find how the numb...
Evaluation of pan coefficient equations in a semi-arid Mediterranean environment using the ASCE-standardized Penman-Monteith method
Pan Evaporation Reference Evapotranspiration ASCE-Standardized Penman-Monteith
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2013/2/27
Reference crop evapotranspiration (ETo) is essential for irrigation, water resources management and environmental assessment. The indirect estimation of ETo is based a) on energy budget approach using...