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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
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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 ...
A Revised Monte Carlo Method for Target Location with UAV
Monte Carlo Target location UAV Bias
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2024/1/19
Target location using UAV equipped with vision system has played an important role in many applications but there remain challenges. One of the principal difficulties is to position a target with a hi...
Evaluation of conditioned Latin hypercube sampling for soil mapping based on a machine learning method
Conditioned Latin hypercube sampling Soil mapping Representativeness Sample randomness
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2024/1/12
Sampling design plays an important role in soil survey and soil mapping. Conditioned Latin hypercube sampling (cLHS) has been proven as an efficient sampling strategy and used widely in digital soil m...
Assessment of an improved individual tree detection method based on local-maximum algorithm from unmanned aerial vehicle RGB imagery in overlapping canopy mountain forests
CROWN DETECTION POINT CLOUDS UAV IMAGERY SEGMENTATION DELINEATION LIDAR INVENTORY HEIGHT FIELD
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2023/12/15
Low consumer-grade cameras attached to small unmanned aerial vehicles (UAV) can easily acquire high spatial resolution images, leading to convenient forest monitoring at small-scales for forest manage...
Fractional Vegetation Cover Estimation Algorithm for FY-3B Reflectance Data Based on Random Forest Regression Method
fractional vegetation cover FY-3B reflectance data random forest regression method
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2023/12/8
As an important land surface vegetation parameter, fractional vegetation cover (FVC) has been widely used in many Earth system ecological and climate models. In particular, high-quality and reliable F...
Airborne LiDAR Intensity Correction Based on a New Method for Incidence Angle Correction for Improving Land-Cover Classification
airborne LiDAR intensity correction LiDAR intensity
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2023/12/6
Light detection and range (LiDAR) intensity is an important feature describing the characteristics of a target. The direct use of original intensity values has limitations for users, because the same ...
Eucalyptus pellita Coppice vs. Seedlings as a Re-Establishment Method in South Sumatra, Indonesia
Eucalyptus pellita growth coppice regeneration coppice reduction fertiliser application
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2023/12/4
Eucalyptus pellita can be regenerated through coppice. We report on the first known study of full-rotation productivity of E. pellita coppice and seedling re-establishment methods. We conducted this s...
Spatial Variations of Soil N2 and N2O Emissions from a Temperate Forest: Quantified by the In Situ 15N Labeling Method
15N labeling dinitrogen emission in situ N2O/(N2O + N2) ratio temperate forest water gradient
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2023/12/1
Emissions of dinitrogen (N2) and nitrous oxide (N2O) from soil are important components of the global nitrogen cycle. Soil N2O emissions from terrestrial ecosystems have been well studied. However, pa...
A Planted Forest Mapping Method Based on Long-Term Change Trend Features Derived from Dense Landsat Time Series in an Ecological Restoration Region
planted forests long-term change trend features Landsat time series Google Earth Engine random forest NDVI
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2023/12/1
Planted forests provide a variety of meaningful ecological functions and services, which is a major approach for ecological restoration, especially in arid areas. However, mapping planted forests with...
An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. Sinensis
NIR spectra heartwood stem cores Toona. Sinensis grain angle
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2023/6/5
A fast, reliable and non-destructive method is needed to qualify the extractives content (EC) in heartwood of T. sinensis cores in the breeding program for studying the genetic effect on EC. However, ...
Intact leaf gas exchange provides a robust method for measuring the kinetics of stomatal conductance responses to abscisic acid and other small molecules in Arabidopsis and grasses
Stomatalconductance Kinetics Guardcellphysiology Aquaporin
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2024/3/5
Guard cells perceive external and internal stimuli and regulate stomatal conductance in plants. With the use of gas exchange analyzers, time-resolved stomatal conductance responses to light intensity,...
Recreational values of forest park using the contingent valuation method (case study: Saravan Forest Park, north of Iran)
willingness to pay environmental economics logit regression model economic values
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2016/11/11
The aim of this research was to evaluate the economic values of Saravan Forest Park, north of Iran. The contingent valuation method was used for this propose. In order to do this research, 480 questio...
Determining the recreational value of forest park by travel cost method and defining its effective factors
Shahid Zare Forest Park travel function economic value consumer surplus
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2016/10/14
Considering the importance of recreation and excursions in household’s basket of expenditures on the one hand, and not paying attention to the economic value of recreational function for natural resou...
Estimating red deer abundance using the pellet-based distance sampling method
cervidae distance sampling deer density pellet group counting rural areas
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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...
The influence of the method of silver fir growing and nutrition on sprouting and chlorophyll fluorescence during spring
Abies alba breaking of dormancy late frost
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2015/5/18
To compare breaking of dormancy in relation with climatic conditions and reaction to late frost fir plants
growing in sun, in shade and at magnesium deficiency were evaluated. Sprouting and chloroph...