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Integration of Multi-Sensor Data to Estimate Plot-Level Stem Volume Using Machine Learning Algorithms-Case Study of Evergreen Conifer Planted Forests in Japan
UAS stem volume TLS SAR random forest support vector multiple regression forest biophysical parameter
2023/12/21
The development of new methods for estimating precise forest structure parameters is essential for the quantitative evaluation of forest resources. Conventional use of satellite image data, increasing...
Voxel-Based Automatic Tree Detection and Parameter Retrieval from Terrestrial Laser Scans for Plot-Wise Forest Inventory
remote sensing forest inventory terrestrial laser scanning point cloud processing automatic tree extraction stem curve tree height TLS benchmarking
2023/12/6
This paper presents a fully automatic method addressing tree mapping and parameter extraction (tree position, stem diameter at breast height, stem curve, and tree height) from terrestrial laser scans ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：erration split-plot designs via complementary sets when the whole plot factors are important
图因子 互补集 错误分割图设计
2023/5/15
In practice, fractional factorial split-plot (FFSP) designs are widely used when the levels of some factors are very difficult to change or control. The factors of an FFSP design are divided into two ...
Adaptive k-tree sample plot for the estimation of stem density: An empirical approach
plotless sampling distance sampling bias efficiency forest sampling
2018/3/6
Available budgets for the inventory of non-commercial woodlands are small. Therefore, there has been increased
interest in using distance methods, such as k-tree sampling, which are faster than fixed...
New plate adds plot twist to ancient tectonic tale（图）
New plate plot twist ancient tectonic tale
2017/9/5
A microplate discovered off the west coast of Ecuador adds another piece to Earth’s tectonic puzzle, according to Rice University scientists.Researchers led by Rice geophysicist Richard Gordon discove...
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...
Evaluation of the provenance plot “Hrubá Skála” (Northern Bohemia) with grand fir at the age of 36 years
Abies grandis growth qualitative traits quantitative traits IUFRO
2017/4/6
The article aims to evaluate the research provenance plot established in 1980 in locality No. 214 – Hrubá Skála (in the north of the Czech Republic), where nine provenances of grand fir (Abies grandis...
Impact of plot size and model selection on forest biomass estimation using airborne LiDAR: A case study of pine plantations in southern Spain
airborne laser scanning forest inventory regression survey design genetic selection methods
2017/4/6
We explored the usefulness of LiDAR for modelling and mapping the stand biomass of two conifer species in southern Spain. We used three different plot sizes and two statistical approaches (i.e. stepwi...
Comparison of growth development of micropropagated and generatively reproduced wild cherry (Prunus avium (L.) L.) on the Polná demonstration plot (Czech Republic) up to the age of 15 years
forest trees vegetative propagation in vitro clone testing field trials
2016/6/3
Four clonal progenies of wild cherry obtained using an in vitro technique and control progeny of generative origin were tested on the Polná research plot in southeastern Bohemia. Growth characteristic...
SceneSkim: Searching and Browsing Movies Using Synchronized Captions, Scripts and Plot Summaries
video search user interfaces script summary
2016/5/24
Searching for scenes in movies is a time-consuming but crucial
task for film studies scholars, film professionals, and
new media artists. In pilot interviews we have found that
such users search fo...
Development of models for forest variable estimation from airborne laser scanning data using an area-based approach at a plot level
Python Fusion forest inventory linear regression Norway spruce
2016/4/6
Airborne laser scanning (ALS) is increasingly used in the forestry over time, especially in a forest inventory process. A great potential of ALS lies in providing quick high precision data acquisition...
RECOVERING PLOT-SPECIFIC DIAMETER DISTRIBUTION AND HEIGHTDIAMETER CURVE USING ALS BASED STAND CHARACTERISTICS
Airborne laser scanning forest inventory Weibull Korf Scots pine
2015/11/10
Density, diameter distribution and height-diameter (H-D) pattern of a forest stand are of primary importance in deriving various stand characteristics, but measuring diameters and heights of a tree st...
VINE PLOT DETECTION IN AERIAL IMAGES USING FOURIER ANALYSIS
segmentation remote-sensing frequency analysis Gabor filters vineyard
2015/8/19
Vine-plot mapping and monitoring are crucial issues in land management, particularly for areas where vineyards are dominant, like in some French regions. In this context, the availability of an automa...
Long-term response of understorey cover, basal area and diversity to stand density in a mixed oak forest on the Síkfőkút plot in Hungary
Quercus cerris shrub layer Acer campestre Shannon-Wiener index Evenness index shrub foliage cover
2015/4/24
The serious oak decline was reported for the 1979–80 period and 63.0% of adult oaks died in a mixed oak forest in the Síkfőkút site, Hungary. The data were used to obtain (1) quantitative informa...
Attentional inhibition in bilingual naming performance: evidence from delta-plot analyses
Attentional inhibition bilingual naming performance
2015/4/10
It has been argued that inhibition is a mechanism of attentional control in bilingual language
performance. Evidence suggests that effects of inhibition are largest in the tail of a response
time ...