Chemical properties of forest soils can strongly influence this compartment vulnerability to climate change effects. Past human activities play a major role in structuring soil chemical properties. In the Mediterranean region, abandonment terrace agriculture since 1860 induced coexistence forests with different ages. Here, signature (SCS) was compared between very recent, recent and ancient usi...

The sustainability of the natural resources used in agricultural production is essential to meet future food needs population. It necessary understand characteristics climate and soil changes through agroclimatic zoning models, even with non-existent or limited climatic edaphic databases, avoid a decline production. objective study was determine accuracy Global Agroecological Zoning (GAEZ), ECO...

A new assemblage of large insect trace fossils is recognized in paleosols the middle Miocene pyroclastic deposits from extra-Andean north Patagonia. This includes Racemusichnus jacobacciensis igen. isp. nov., largest fossil attributed to solitary insects. R. represented by clusters two seven thickly walled cylinders horizontally orientated paleosol. The cluster arrangement, its orientation, siz...

The late Early/early Middle Miocene flora from Parschlug (Styria, Austria) is famous for its numerous specimens and high diversity. Some taxa previously described are revised here 42 new angiosperm leaf morphotypes/taxa described. Climate Leaf Analysis Multivariate Program (CLAMP) applied to assess the palaeoclimate. An update of tool most suitable modern climate CLAMP calibration dataset intro...

A regional regression model was developed to estimate the spatial distribution of ground water recharge in subhumid regions. The regional regression recharge (RRR) model was based on a regression of basin-wide estimates of recharge from surface water drainage basins, precipitation, growing degree days (GDD), and average basin specific yield (SY). Decadal average recharge, precipitation, and GDD...

Slope instability in the Butterfly Biosphere Reserve (RBMM) Michoacán, Mexico, is a widespread phenomenon that results from complex interaction among different factors such as climate, slope, and spatial distribution of rock units. The climate temperate subhumid, with rains summer an annual average rainfall 700 to 1250 mm. main physiographic units area are volcanic mountains, slopes greater tha...

1. Many Mediterranean plant species persist after fire because their seeds are protected from the heat of the fire (e.g. hard-coated seeds, serotinous cones), thus permitting rapid post-fire recruitment. For simplicity, this trait will hereafter be called P and its two possible phenotypes P+ (seeder) and P– (non-seeder). 2. Because P+ appears in a narrow taxonomic spectrum and confers persisten...

Boreal peatlands occupy about 1.14 x 106 km2 in North America. Fires can spread into peatlands, burning the biomass, and if moisture conditions permit, burning into the surface peat. Charred layers in peat sections reveal that historically bogs in the subhumid continental regions and permafrost peatlands of the subarctic regions have been the most susceptible to fires. Fire return periods were ...

Paleotemperature and paleoprecipitation over the past 40 m.yr. can be inferred from the degree of chemical weathering and depth of carbonate nodules in paleosols of Oregon, Montana, and Nebraska. Paleosol records show that late Eocene (35 Ma), middle Miocene (16 Ma), late Miocene (7 Ma), and early Pliocene (4 Ma) warm climatic episodes were also times of a wet climate in Oregon, Montana, and Ne...