Now showing items 1-10 of 455
An archaeobotanical perspective in the study of inflorescence phytoliths of wild grasses from arid and semi-arid environments of Argentina
(Pergamon-Elsevier Science Ltd, 2017-04)
Wild cereals have been harvested all over the world by hunter-gatherer with evidences as much in South America as in Australia, North America and Subsaharian Africa. In some places there are still used for human consumption. ...
Spatial heterogeneity provides organic matter refuges for soil microbial activity in the Patagonian steppe, Argentina
(Pergamon-Elsevier Science Ltd, 2009-06)
In arid and semi-arid ecosystems that are frequently classified as water limited, it is unclear how spatial and temporal variability of vegetation and climate could affect microbially-mediated soil processes. Our objective ...
Mapping and monitoring Lakes Intra-Annual variability in semi-arid regions: A case of study in Patagonian Plains (Argentina)
(MDPI AG, 2018-07-03)
In arid and semi-arid regions, the climatic impact on lakes is especially critical, as they are scarce and play an important role as a primary source of the water supply. However, in some extended regions with those climatic ...
Too much of a good thing: Shrub benefactors are less important in higher diversity arid ecosystems
(Wiley Blackwell Publishing, Inc, 2021-05)
The biodiversity–ecosystem function literature provides a useful framework to examine many processes associated with species diversity in ecology. One such context is the maintenance of biodiversity by facilitation in arid ...
Debris flows triggered from melt of seasonal snow and ice within the active layer in the semi-arid Andes
(John Wiley & Sons Ltd, 2020-01)
Debris flows triggered from rapid melt of seasonal snow, and/or ice within the active layer have not been studied in periglacial areas of the semi-arid Andes. Therefore, through a representative watershed we investigated ...
Anchored in 'average thinking' in studies of arid rangeland dynamics: The need for a step forward from traditional measures of variability
(Academic Press Ltd - Elsevier Science Ltd, 2015-05-07)
There is a wide consensus that arid and semi-arid environments are highly variable in space and time. The most frequent approaches to describe and analyze arid and semi-arid rangelands are based on the usage of averages ...
Microbial activities and physicochemical properties of coniferous forest soilsin two forest areas (arid and semi-arid) of western AlgeriaActividades microbianas y propiedades fisicoquímicas de los suelos forestales de coníferas en dos zonas forestales (áridas y semiáridas) del oeste de Argelia
(Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales., 2019)
An inventory of cryospheric landforms in the arid diagonal of South America (high Central Andes, Atacama region, Chile)
(Pergamon-Elsevier Science Ltd, 2017-05)
An integral, glacial and periglacial, inventory of the cryosphere in the Atacama region in Chile was carried out to estimate the amount of frozen water reserves in this arid to hyper-arid region. The inventory was carried ...
Drought propagation in semi-arid river basins in Latin America: Lessons from Mexico to the Southern Cone
(Molecular Diversity Preservation International, 2018-11)
Detecting droughts as early as possible is important in avoiding negative impacts on economy, society, and environment. To improve drought monitoring, we studied drought propagation (i.e., the temporal manifestation of a ...