Results 51 to 60 of about 5,971,842 (255)
Investigaciones Geográficas, 1975 La evidencia etnográfica, arqueológica y documental indica que los pueblos prehispánicos del Valle de México desarrollaron una bien elaborada tecnología para explotar su medio físico.
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«THE DESERT FATHERS AND THE WOMEN UNDEFILED...»
Труды по прикладной ботанике, генетике и селекции, 2018 Participation of scientists from VIR in a rally race through the territory with complex soil composition provided valuable contribution to the development of land use and applied geosciences.
R. B. Semevsky
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Darwin and Dokuchaev. Interaction of ideas
Бюллетень Почвенного института им. В.В. Докучаева, 2021 Soil scientists have long believed that the first printed work of V.V. Dokuchaev was his diploma thesis in 1871 “On alluvial sediments along the Kasna River of the Sychevsky district of the Smolensk province”, which he defended after graduating from St ...
I. V. Ivanov, E. A. Rusakova
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, 2005 Key points • Soil varies from place to place; statistics is a technology for describing that variation quantitatively and separating signal from noise. • Replicate sampling is required to estimate the variation in experimental material and geographic regions. • Randomization is needed to estimate mean values and their variances, and to place confidence
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High-Resolution Mapping of Cropland Soil Organic Carbon in Northern China
AgronomyMapping the high-precision spatiotemporal dynamics of soil organic carbon (SOC) in croplands is crucial for enhancing soil fertility and carbon sequestration and ensuring food security.
Rui Wang +4 more
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Environmental Research Letters, 2019 Accurate soil organic carbon (SOC) maps are needed to predict the terrestrial SOC feedback to climate change, one of the largest remaining uncertainties in Earth system modeling.
Gavin McNicol +9 more
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Climatic Optimum as a Factor of the Economic Crisis of Steppe Nomads in the 4th Century AD
Вестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2019 Introduction. Archaeological sites of the 4th century AD absent on most of the area of the Late Sarmatian culture. This may be both due to the difficulties of their identification and absence of chronological indicators and due to migrations of nomads ...
Mikhail V. Krivosheev +1 more
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Bibliometric Analysis for Pattern Exploration in Worldwide Digital Soil Mapping Publications
Anais da Academia Brasileira de Ciências, 2018 Bibliometric analyses provide a clear understanding of the scientific performance and relate them with standards of the global scientific production. Soil science is an outstanding and developing field among environmental sciences.
LUCIANO C. CANCIAN +2 more
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Portable X-ray fluorescence (pXRF) applications in tropical Soil Science
, 2017 The X-ray fluorescence (XRF) is an analytical technique for determination of elemental composition of different materials. In soils, the XRF has many pedological, environmental and agronomic applications, mainly after the emergence of portable equipments
B. Ribeiro +3 more
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, 2017 . The application of lipids in soils as molecular proxies, also often referred to as biomarkers, has dramatically increased in the last decades. Applications range from inferring changes in past vegetation composition, climate, and/or human presence to ...
B. Jansen, G. Wiesenberg
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