搜索结果: 1-15 共查到“林学 parameters”相关记录19条 . 查询时间(0.067 秒)
Estimation of Forest Structural Parameters Using UAV-LiDAR Data and a Process-Based Model in Ginkgo Planted Forests
Forestry Structural engineering Measurement Laser radar Predictive models
2024/1/19
Developing an accurate model for estimating the forest structural parameters of planted forests is crucial for forest productivity predictions and can provide a better understanding of the carbon cycl...
Semantic Segmentation and Analysis on Sensitive Parameters of Forest Fire Smoke Using Smoke-Unet and Landsat-8 Imagery
forest fire remote sensing smoke segmentation Smoke-Unet attention mechanism residual block Landsat-8 band sensibility
2023/12/5
Forest fire is a ubiquitous disaster which has a long-term impact on the local climate as well as the ecological balance and fire products based on remote sensing satellite data have developed rapidly...
An Improved Generalized Hierarchical Estimation Framework with Geostatistics for Mapping Forest Parameters and Its Uncertainty: A Case Study of Forest Canopy Height
forest up-scaling regression kriging uncertainty LiDAR
2023/12/1
Forest canopy height is an essential parameter in estimating forest aboveground biomass (AGB), growing stock volume (GSV), and carbon storage, and it can provide necessary information in forest manage...
Using Tree Height, Crown Area and Stand-Level Parameters to Estimate Tree Diameter, Volume, and Biomass of Pinus radiata, Eucalyptus globulus and Eucalyptus nitens
radiata pine blue gum shinning gum diameter-height allometry crown diameter stem volume above-ground biomass growth and yield modeling remote sensing
2023/11/22
Accurate estimates of tree diameter, height, volume, and biomass are important for numerous economic and ecological applications. In this study, we report exponential equations to predict tree DBH (cm...
Evaluating the effects of physiographic parameters on the road cross section in mountain forests (Case study: northern forests of Iran)
hillside slope rock base soil texture
2016/1/29
Road cross section, as one the main effective factors in relation to fill and cut volume, was effective in costs and disturbance of forest road constructions. In this research, the effect of a few phy...
Research on individual parameters for cutting power of woodcutting process by circular saws
circular saw cutting edge geometry cutting power wood crosscutting
2015/3/19
Nowadays, the wood cutting process looks like a technological scheme consisting of several connected and relatively inseparable parts. Wood crosscutting is the most widespread operation in the process...
Stability of the development of basic stand parameters of beech yield tables constructed on the basis of short-term observations on research plots
beech mean diameter mean height top height yield curves yield tables
2015/3/19
We compared the development of yield curves of mean and top height and development of mean diameter according to yield tables of beech which were constructed on the basis of short-term investigations ...
Relationships between the parameters of aboveground parts and the parameters of root plates in Norway spruce with respect to soil drainage
Picea abies root plate waterlogged sites
2015/3/19
The aboveground parameters and the parameters of root plates in uprooted Norway spruce trees (Picea abies [L.] Karst.) were measured in the Hnile Blata locality (the High Tatras Mts.) (waterlogged sit...
Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea abies [L.] Karst.) from intensive nursery technologies with current bareroot plants
plugs bareroot transplants containerized seedlings
2015/3/16
High quality of planting material is an essential prerequisite for successful artificial forest regeneration. We carried out a detailed investigation aimed at differences between plantable bareroot an...
Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis )
Weibull distribution diameter distribution parameter estimation
2015/3/12
Weibull distribution was used to fit tree diameter data collected from 86 sample plots located in Chinese pine stand in Beijing. To estimate the Weibull distribution parameters, three methods [namely ...
First evaluation of growth parameters in clonal test with wild cherry
linear mixed models spatial analysis forest tree breeding
2015/3/6
A 6-year-old clonal trial with 13 clones of wild cherry (Prunus avium L.) was evaluated during the summer of 2004 at 6 different sites in the Czech Republic. Observed traits were the stem height, stem...
Determination of the pressing parameters of spruce water-resistant plywood
veneer plywood construction statistical evaluation
2015/3/6
The paper summarizes results of operations aimed at determining the pressing parameters of spruce water-resistant plywood and testing the suitability of particular constructions of plywood. Constant a...
Morphological and physiological parameters of beech leaves (Fagus sylvatica L.) in research demonstration object Poľana
beech (Fagus sylvatica L.) morphological characteristics assimilatory apparatus tree crown levels chlorophyll fluorescence
2015/2/6
Observations of the beech assimilatory apparatus in different levels of a model tree were realised from 1993 to 1999 in a research demonstration plot situated in Poľana. Different observations of...
Craigmillar Castle Park: Design Parameters in a Historic Designed Landscape and Scheduled Ancient Monument: Planning to Restore Attraction to a Dilapidated Park
a Historic Designed Landscape Scheduled Ancient Monument
2014/12/8
The castle of Craigmillar was begun in the late 14th century and was developed until the late 17th century when it was abandoned and the lands surrounding it which today comprise Craigmillar Castle Pa...
Influence of Parameters and Light Environment under the Canopy on the Fuel Moisture Estimation Model
fuels on forest floor litter moisture ratio solar radiation on forest floor
2009/8/28
Model parameterization was performed for estimation of the fuel moisture in adjacent plots with different tree species aiming at the mapping of forest fire hazard. One plot was covered with only decid...