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Estimating aboveground biomass of the mangrove forests on northeast Hainan Island in China using an upscaling method from field plots, UAV-LiDAR data and Sentinel-2 imagery
Mangroves Aboveground biomass UAV-LiDAR Sentinel-2 Random forest
2024/1/23
The mangrove forests of northeast Hainan Island are the most species diverse forests in China and consist of the Dongzhai National Nature Reserve and the Qinglan Provincial Nature Reserve. The former ...
Estimating Mangrove Tree Biomass and Carbon Content: A Comparison of Forest Inventory Techniques and Drone Imagery
blue carbon allometry unmanned aerial vehicle photogrammetry coastal wetlands
2024/1/22
Mangroves provide many ecosystem services including a considerable capacity to sequester and store large amounts of carbon, both in the sediment and in the above-ground biomass. Assessment of mangrove...
A Bayesian Approach to Estimating Seemingly Unrelated Regression for Tree Biomass Model Systems
Bayesian approaches seemingly unrelated regression Korean larch Markov chain Monte Carlo Gibbs sampler
2024/1/19
Accurate estimation of tree biomass is required for accounting for and monitoring forest carbon stocking. Allometric biomass equations constructed by classical statistical methods are widely used to p...
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
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...
Ensemble machine-learning-based framework for estimating total nitrogen concentration in water using drone-borne hyperspectral imagery of emergent plants: A case study in an arid oasis, NW China
Water resources Remote sensing Total nitrogen Hyperspectral imagery Machine learning Bootstrap
2023/12/19
In arid and semi-arid regions, water-quality problems are crucial to local social demand and human well-being. However, the conventional remote sensing-based direct detection of water quality paramete...
Allometric Models for Estimating Aboveground Biomass in Short Rotation Crops of Acacia Species in Two Different Sites in Chile
short rotation woody crops A. dealbata A. mearnsii A. melanoxylon
2023/12/8
We evaluated the ability of different allometric models to estimate the biomass production of short-rotation woody crops of Acacia dealbata, A. mearnsii and A. melanoxylon. Models considered the adjus...
Estimating Carbon Sequestration Potential of Forest and Its Influencing Factors at Fine Spatial-Scales: A Case Study of Lushan City in Southern China
fine-scalebiomass expansion factortree growth equationcarbon sequestration potentialsite characteristics
2023/11/20
Accurate prediction of forest carbon sequestration potential requires a comprehensive understanding of tree growth relationships. However, the studies for estimating carbon sequestration potential con...
Assessing the validity of mobile device data for estimating visitor demographics and visitation patterns in Yellowstone National Park
Mobile device data Visitor demographics Temporal visitation patterns National park
2023/11/20
Monitoring visitor demographics and temporal visitation patterns can help national park managers understand their visitors and allocate resources more effectively. Traditional approaches, such as visi...
Efficiency of sector sampling for estimating juniper forest attributes vs. fixed area plot
accuracy crown cover density precision plot shape
2018/3/6
Juniper forests grow in mountain areas and many difficulties are encountered in their sampling. Sector sampling as
an unbiased and cost-effective method was tested for the sampling of a 12.5-ha junip...
Estimating red deer abundance using the pellet-based distance sampling method
cervidae distance sampling deer density pellet group counting rural areas
2015/11/26
Many European agricultural landscapes have been abandoned facilitating the comeback of large ungulates. In Portugal, the increase in red deer numbers caused local conflicts with landowners reporting e...
Estimating fishing and natural mortality rates for Pacific bluefin tuna (Thunnus orientalis) using electronic tagging data
Pacific bluefin tuna Mark-recapture Natural mortality Fishing mortality Spatial structure Electronic tagging data
2015/11/16
This paper presents estimates of fishing and natural mortality rates derived from a spatially- and seasonally structured Bayesian mark-recapture model for electronically tagged Pacific bluefin tuna (P...
A theoretical method for estimating the characteristics of radon transportin homogeneous soil
method radon soil convectiv evelocity radon flux density
2015/9/10
A theoretical method for estimating the characteristics of radon transport in homogeneous soil is developed. The
method allows the following characteristics to be estimated: depth distribution functi...
Comparison of models for estimating genetic parameters and predicting breeding values for birth weight and calving ease in Czech Charolais cattle
beef cattle dystocia data transformation
2015/7/2
The most appropriate model for genetic parameters estimation for calving ease and birth weight in beef cattle was selected. A total of 27 402 field records were available from the Czech Charolais bree...
Estimating Apparent Nutrient Digestibility of Diets Containing Leucaena leucocephala or Moringa oleifera Leaf Meals for Growing Rabbits by Two Methods
External Marker Leucaena leucocephala Moringa oleifera Rabbits
2016/5/18
This study aimed to evaluate the nutrient digestibility of growing rabbits fed diets with different levels of either Leucaena leucocephala (LLM) or Moringa oleifera (MOLM) leaf meals and also to compa...
Estimating the sample size for fitting taper equations
sampling methods tree shape regression
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...