Results 241 to 250 of about 273,328 (321)

Assessing the intensity of Late Quaternary humid phases in the Nefud Desert, northern Arabia

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The climate history of the major dryland zones of the world, such as the Saharo–Arabian Desert belt, plays a key role in the dispersal of early humans through these intermittently inhospitable regions. Here, we assess the relative intensity of Late Quaternary humid phases in northern Arabia through lithological, geochemical, palaeoecological ...
Richard Clark‐Wilson   +9 more
wiley   +1 more source

Effects of pesticides on soil microbial community structure and nitrogen transformation in tobacco fields affected by root rot. [PDF]

open access: yesFront Microbiol
Li F   +12 more
europepmc   +1 more source

Mineral dust around the Sahara—from source to sink. A review with emphasis on contributions of the German soil science community in the last twenty years

open access: closedJournal of Plant Nutrition and Soil Science, 2010
AbstractNatural mineral dust has manifold environmental effects reaching from fertilizing aquatic and terrestrial ecosystems to affecting the earth's radiation balance and thus impacting on climate. The Sahara is considered the largest source of natural mineral dust on the globe, so much research attention has been paid to source identification, dust ...
Ludger Herrmann   +2 more
openaire   +2 more sources

Is the geological concept of clay minerals appropriate for soil science? A literature-based and philosophical analysis

open access: closedPhysics and Chemistry of the Earth, Parts A/B/C, 2010
Data in the literature for soils that are dominated by each of the main types of clay minerals were examined and compared with those for reference clay minerals of the same types to determine the extent to which the nature and properties of clay-size minerals in soils could be explained by those of clay minerals with the same name from non-soil ...
G. Jock Churchman
openaire   +4 more sources

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