Results 11 to 20 of about 82,173 (281)

Variation in photosynthetic and nonphotosynthetic vegetation along edaphic and compositional gradients in northwestern Amazonia [PDF]

open access: yesBiogeosciences, 2014
Tropical forests vary substantially in aboveground properties such as canopy height, canopy structure, and plant species composition, corresponding to underlying variations in soils and geology.
M. A. Higgins   +4 more
doaj   +1 more source

Exploring species distribution of spring meiofauna (Annelida, Acari, Crustacea) in the south-eastern Alps

open access: yesJournal of Limnology, 2011
The distribution patterns of Alpine crenic meiofauna were studied using a standardised sampling procedure at 110 springs, evenly distributed across both carbonate and siliceous rocks in Trentino (northern Italy).
Beatrice SAMBUGAR   +4 more
doaj   +1 more source

High-resolution palynological analysis in Lake Sapanca as a tool to detect recent earthquakes on the North Anatolian Fault [PDF]

open access: yes, 2009
High-resolution palynological analysis of a 38-cm-long core collected from Lake Sapanca, northwest Turkey, reveals large earthquakes that occurred during the second half of the 20th century along the North Anatolian Fault Zone. Four events have disturbed
Boyraz, S, Gürbüz, A, Leroy, SAG
core   +1 more source

Marx’s Ecological Notebooks

open access: yesДискурс Пи, 2021
The article investigates Marx's natural-scientific (ecological) manuscripts (1864- 1872), among which the most important are notebooks of 1868. These manuscripts are mainly excerpts from works of various authors, but they also contain Marx's own original
Saito, K.
doaj   +1 more source

Rôle des conditions géographiques sur l'organisation spatiale des réseaux de défense de la Grande Guerre. Application à la Champagne (région de Reims)

open access: yesPhysio-Géo, 2015
The control of geographical and geomorphological conditions on the spatial organization of the First World War defenses of networks is analyzed from the Reims area, on the western front.
Alain Devos   +7 more
doaj   +1 more source

Ecological factors affecting the recent Picea abies decline in Slovenia: the importance of bedrock type and forest naturalness

open access: yesiForest - Biogeosciences and Forestry, 2023
Norway spruce (Picea abies [L.] Karst.) has been at the centre of controversy for many decades. Recent evidence of its profound disturbance-induced damage and consequent stock depletions across forest landscapes in Europe has reinforced doubts regarding ...
Kermavnar J, Kutnar L, Pintar AM
doaj   +1 more source

The system of tracking the position of the bucket excavator's wheel for prevention of risk situations [PDF]

open access: yes, 2018
For companies doing business in mining mineral deposits, ensuring safe work is one of the key tasks (Safety First!). One of the important trends in this area is prevention and endeavour to forestall risk situations. Risks need to be searched, technically
Kapica, Roman   +2 more
core   +1 more source

The Benefits of 3D and 4D Synthesis of Marine Geophysical Datasets for Analysis and Visualisation of Shipwrecks, and for Interpretation of Physical Processes over Shipwreck Sites: A Case Study off Methoni, Greece

open access: yesJournal of Marine Science and Engineering, 2021
Through the study of three wreck sites over the Methoni Bay (Greece), this article presents the benefits of spatio-temporal integration and correlation of marine geophysical data in a common three-dimensional (3D) geographical platform for analysis, and ...
Panagiotis Gkionis   +2 more
doaj   +1 more source

Automatic Rock Classification Algorithm Based on Ensemble Residual Network and Merged Region Extraction

open access: yesAdvances in Multimedia, 2022
Lithology identification of rocks is an important part in the field of oil and gas exploration, mineral exploration, and geological analysis. How to accomplish rock classification is a key issue for the further development of the geology industry.
Chenlu Guo, Zhiyuan Li
doaj   +1 more source

Organic matter cycling along geochemical, geomorphic, and disturbance gradients in forest and cropland of the African Tropics – project TropSOC database version 1.0 [PDF]

open access: yesEarth System Science Data, 2021
The African Tropics are hotspots of modern-day land use change and are, at the same time, of great relevance for the cycling of carbon (C) and nutrients between plants, soils, and the atmosphere.
S. Doetterl   +37 more
doaj   +1 more source

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