Results 21 to 30 of about 84,952 (285)

Biomass Factors and Equations for Young Scots Pine Stands in Bolu-Aladağ

open access: yesForestist, 2012
This work presents linear and nonlinear regression equations developed for estimating the stem (over bark and under bark), bark, living branch, dead branch, total branch, needle and aboveground biomass of 31-year-old Scots pine (Pinus sylvestris) trees ...
Doğanay Tolunay
doaj   +1 more source

Mapping of aboveground biomass in Gabon

open access: yesComptes Rendus. Géoscience, 2019
The aim of this paper is to map the aboveground biomass (AGB) in Gabon. First, a random forest (RF) model that relates reference AGB values to remote sensing (RS)-derived variables (mainly radar and optical images) was built, and the significant predictive variables were determined.
Hajj, Mohammad   +4 more
openaire   +4 more sources

Allometric models for estimating aboveground biomass of young Norway spruce trees in the Western Carpathians, Slovakia

open access: yesCentral European Forestry Journal, 2022
In the period of climate change, it is necessary to have biomass models for trees of all sizes to make precise estimations of biomass forest stocks to quantify carbon sequestration by forest cover.
Pajtík Jozef   +2 more
doaj   +1 more source

Mapping tropical forest aboveground biomass using airborne SAR tomography

open access: yesScientific Reports, 2023
AbstractMapping tropical forest aboveground biomass (AGB) is important for quantifying emissions from land use change and evaluating climate mitigation strategies but remains a challenging problem for remote sensing observations. Here, we evaluate the capability of mapping AGB across a dense tropical forest using tomographic Synthetic Aperture Radar ...
Ramachandran N.   +4 more
openaire   +3 more sources

Evaluation of Unmanned Aerial Vehicles (UAV) as a Tool to Predict Biomass and Carbon of Tectona grandis in Silvopastoral Systems (SPS) in Costa Rica

open access: yesDrones, 2021
The main objective of this research was to evaluate the use of unmanned aerial vehicles (UAVs) in estimating the aboveground biomass and carbon, and the dasometric characteristics at three different spacings (2.5 m × 1.0 m, 2.5 m × 2.0 m and 2.5 m × 3.0 ...
Javier Hernández-Cole   +3 more
doaj   +1 more source

Remote Sensing Estimates of Grassland Aboveground Biomass Based on MODIS Net Primary Productivity (NPP): A Case Study in the Xilingol Grassland of Northern China

open access: yesRemote Sensing, 2014
The precise and rapid estimation of grassland biomass is an important scientific issue in grassland ecosystem research. In this study, based on a field survey of 1205 sites together with biomass data of the Xilingol grassland for the years 2005–2012 and ...
Fen Zhao   +7 more
doaj   +1 more source

Spatiotemporal fusion of multi-source remote sensing data for estimating aboveground biomass of grassland

open access: yesEcological Indicators, 2023
Accurate estimation of aboveground biomass of grasslands is key to sustainable grassland utilization. However, most satellites cannot provide high temporal and spatial resolution data. Patterns of grassland dynamics associated with variability in climate
Yajun Zhou   +6 more
doaj   +1 more source

Use of consumer-grade cameras to assess wheat N status and grain yield [PDF]

open access: yes, 2019
Relationships between (a) fractional Intercepted PAR (fIPAR), and (b) aboveground biomass (Biomass) and (c) grain yield at harvest with the Normalized Difference Vegetation Index (NDVI) derived either from a spectroradiometer or a conventional camera at ...
Fernández Murcia, Enric   +2 more
core   +4 more sources

Aboveground biomass and carbon stock assessment in forest stands of Gmelinaarborea Roxb. in Mizoram, North-East India

open access: yesJournal of Tropical Forestry and Environment, 2017
Aboveground biomass and carbon stock in tropical forest play an important role in global carbon cycle. Assessment of biomass and carbon pool in different forest stands may provide information in making decisions about the carbon management within the ...
R. Hauchhum
doaj   +1 more source

Deriving Biomass Models for Small-Diameter Loblolly Pine on the Crossett Experimental Forest [PDF]

open access: yes, 2013
Foresters and landowners have a growing interest in carbon sequestration and cellulosic biofuels in southern pine forests, and hence need to be able to accurately predict them.
Bragg, Don C., McElligot, K. M.
core   +3 more sources

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