Results 81 to 90 of about 3,103,775 (206)

Should we estimate plant cover in percent or on ordinal scales? II – Diversity indices [PDF]

open access: yesVegetation Classification and Survey (VCS)
Question: We asked whether ordinal cover scales cause biases in biodiversity indices derived from vegetation plots and, if so, whether a different back-translation of ordinal categories could improve the situation.
Iwona Dembicz, Jürgen Dengler
doaj   +3 more sources

The whole and its parts: why and how to disentangle plant communities and synusiae in vegetation classification

open access: yesApplied Vegetation Science, 2019
Most plant communities consist of different structural and ecological subsets, ranging from cryptogams to different tree layers. The completeness and approach with which these subsets are sampled have implications for vegetation classification.
C. Berg   +3 more
semanticscholar   +1 more source

Comments on nomenclature of the order Rhododendro tomentosi-Laricetalia gmelinii and validation of the alliance Pino sibiricae-Laricion sibiricae [PDF]

open access: yesVegetation Classification and Survey (VCS)
Zonal light-coniferous forests are widespread on long-frozen soils in Southern Siberia. Their individuality was first recognised in 1982 by Guinochet, who proposed a new suballiance for them, Pino-Laricenion sibiricae, within the alliance Vaccinio ...
Nikolai Ermakov, Jean-Paul Theurillat
doaj   +3 more sources

A novel approach for vegetation classification using UAV-based hyperspectral imaging

open access: yesComputers and Electronics in Agriculture, 2018
The use of unmanned aerial vehicle (UAV)-based spectral imaging offers considerable advantages in high-resolution remote-sensing applications. However, the number of sensors mountable on a UAV is limited, and selecting the optimal combination of spectral
T. Ishida   +7 more
semanticscholar   +1 more source

The Alaska vegetation classification.

open access: yes, 1992
Viereck, L.A.; Dyrness, C.T.; Batten, A.R.; Wenzlick, K.J. 1992. The Alaska vegetation classification. Gen. Tech. Rep. PNW-GTR-286. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 278 p. The Alaska vegetation classification presented here is a comprehensive, statewide system that has been under ...
L.A. Viereck   +3 more
openaire   +2 more sources

Classification of Vegetable Corns

open access: yesHortScience, 1988
Abstract In a broad sense, fresh-market vegetable corns include all maize harvested and eaten fresh while the kernels are tender and before all of the sugars are converted to starch. This definition includes “roasting ears” of selected field corns that lack sweetness-enhancing genotypes and are considered “starchy”
J. W. Courter   +3 more
openaire   +1 more source

Hardwood riparian forests in northern Iberian Peninsula: classification and diversity patterns [PDF]

open access: yesVegetation Classification and Survey (VCS)
Aims: Temperate hardwood riparian forests constitute an endangered habitat occurring mostly on the floodplains of major European rivers, and included in habitat T13 of the European Nature Information System (EUNIS).
Idoia Biurrun   +3 more
doaj   +3 more sources

Optimal Combination of Polarimetric Features for Vegetation Classification in PolSAR Image

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Polarimetric features of PolSAR images include inherent scattering mechanisms of terrain types, which are important for classification and other Earth observation applications.
Q. Yin, W. Hong, Fan Zhang, E. Pottier
semanticscholar   +1 more source

XXIV. On the classification of vegetables [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
(1837). XXIV. On the classification of vegetables. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 10, No. 59, pp. 108-116.
openaire   +1 more source

X. On the classification of vegetables [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
n ...
openaire   +2 more sources

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