The CARBOSOL Database: a georeferenced soil profile analytical database for Spain

The following document presents the CARBOSOL Database that gathers data of physical and chemical properties of 6,609 georeferenced soil profiles in Spain associated to a related analytical dataset of 22,100 horizons compiled from 635 soil studies. The CARBOSOL Database provides a wealth of information on soil organic matter content, its distribution along the profile and its associated determinants: such as soil type, lithology, topography and land cover. Also the CARBOSOL Database includes broad physical and chemical characteristics of the profiles and its associated horizons. The database will be publicly available and aims to be a useful research tool to increase knowledge of Spanish soils, especially around the study of the soil organic C stocks, the dynamic of soil organic matter and its determinant factors. The database is of interest for soil specialists, policy-makers, and the general public, due to its potential to (1) improve modelling of processes such as soil erosion and organic carbon storage in soil, (2) support agricultural and environmental policy-making, and (3) hold up soil situation awareness in Spain. The CARBOSOL Database has been developed by the CARBOSOL Collaborative Network Project and, currently, represents the largest standardized soil data compilation in Spain

Decomposition of C-13-labelled plant material in a European 65-40 degrees latitudinal transect of coniferous forest soils: simulation of climate change by translocation of soils.

International audienceStandard C-13-labelled plant material was exposed over 2-3 yr at 8 sites in a north-south climatic gradient of coniferous forest soils, developed on acid and calcareous parent materials in Western Europe. In addition to soils exposed in their sites of origin, replicate units containing labelled material were translocated in a cascade sequence southwards along the transect, to simulate the effects of climate warming on decomposition processes. The current Atlantic climate represented the most favourable soil temperature and moisture conditions for decomposition. Northward this climatic zone, where the soil processes are essentially temperature-limited, the prediction for a temperature increase of 3 degrees C estimated a probable increase of C mineralisation by 20-25% for the boreal zone and 10% for the cool temperate zone. Southward the cool Atlantic climate zone, (the Mediterranean climate), where the processes are seasonally moisture-limited, the predicted increase of temperature by 1-2 degrees C little affected the soil organic matter dynamics, because of the higher water deficit. A significant decrease of C mineralisation rates was observed only in the superficial layers recognised in Mediterranean forest soils as 'xeromoder' and subject to frequent dry conditions. In the deeper Mediterranean soil organic horizons (the mull humus types), representing the major C storage in this zone, C mineralisation was not affected by a simulated 2 degrees C temperature increase. The temperature effect is probably counteracted by a higher water deficit

Cimicifuga racemosa (Actaea racemosa) (données phytochimiques, études pharmacologiques, activités biologiques et principales applications thérapeutiques)

LYON1-BU Santé (693882101) / SudocSudocFranceF