Accident du travail ; Dissimulation ; Donnée statistique ; Géographie humaine ; Prévention ; Travail ; URSS
. la prise en compte des accidents du travail par les statistiques, 4. l'analyse des accidents et la politique de prévention, 5. les responsables de la sécurité et les organes de contrôle, 6. l'indemnisation et les coûts humains des accidents du travail
L'A. analyse successivement: 1. les problèmes de définition des accidents du travail (distinction avec les accidents professionnels), 2. la dissimulation des accidents du travail (qui permet aux entreprises de se libérer de toute responsabilité), 3
. Deux pages de tableaux sur 1. l'organisation de la sécurité et 2. la définition des accidents et leur indemnisation. (CLR).
Dissolved organic carbon dynamics in a restored peat bog in Northwest Germany
The article deals with terms of peat decomposition, bog restoration, UV-Vis spectroscopy, restoration success, humic acid and fulvic acid fraction. The study was carried out in the Pietzmoor in Northwest Germany. - (IfL)
of organicacids. Yet when wheathering rinds are in contact with abundant organicacids secreted by lichens, olivine weathers before clinopyroxene and plagioclase weathers last. This illustrates the importance of the biogeochemical environment.
Pedogenesis by clay dissolution on acid, low-grade metamorphic rocks under mediterranean forests in southern Tuscany (Italy)
To that purpose 3 representative soil profiles on phyllite and sandstone under sclerophyllous oak, pine and heathland were selected. Without attempting a budget study for the entire forested area, the hypothesis that decomposing organic matter
Accident du travail ; Cavtat-Dubrovnik, 1977 ; Congrès ; Epidémie ; Femme ; Géographie humaine ; Législation ; Maladie mentale ; Maladie professionnelle ; Migration de retour ; Morbidité ; Médecine préventive ; Santé ; Symposium international sur la
Rassemble 52 communications sur: 1la morbidité des travailleurs étrangers: maladies professionnelles, accidents du travail, épidémiologie| 2les mesures prises: soins et prévention| 3les problèmes spécifiques des femmes et les mesures concernant les
Desert ; Fluvial water ; Former USSR ; Hydrochemistry ; IEC ; Organic materials
D'après les résultats d'observations pluriannuelles, on analyse la répartition et le régime du pH, de la minéralisation, de la couleur, de l'oxydabilité au permanganate et au bichromate, leurs relations, les concentrations en acides humiques et
Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications
Amino acid, organic nitrogen, and stable carbon isotope (C 13/C 12) profiles through a core from East Taihu Lake are interpreted in terms of paleoecology and paleoclimate over the last 15,000 yr. The average δ C 13 values from a core from West Taihu
The spatial variation of metal ions in soils is found to be controlled by pH, organic matter and clay contents, but in neutral or slightly acidic soils a significant part of metal content is of lithogenic origin. - (JS)
This study was conducted in the coastal zone located in Cäciliengroden, Jadebusen Bay (North Germany). The aim was to examine the changes in organic matter properties along a salt marsh soil chronosequence. Three soil profiles were located in low
, middlehigh and high marsh zones, between the mud flat tidal area and the dike. The AA. propose a pattern of spatial changes in properties of salt marsh soils along the studied chronosequence. The results lead to the conclusion that some organic matter
properties (C:N, humic to fulvic acid ratios and aromaticity of the humic acids) are good indicators for the extent of development of the studied soils.
Differential patterns of nitrogen content of F+H-layer in 11 forms of mountainous spruce forest in the area of the Harz moutains and the Sudetes are analysed. Total nitrogen, hydrolysable nitrogen and lumb amino acid content of the organic soil
of mountainous spruce forests do not differ at all or only slightly with regard to the relative proportions of the main kinds of nitrogen-acid-hydrolysable, water-soluble and residual nitrogen-while the absolute forms show a manyfold differential pattern
composition of bulk soil and humic acid (HA). The majority of sites in the HARC presented a soil organic matter originated from C3-vegetation and demonstrated an intense N cycling based on the δ15N data. Even though charcoal could be suggested as a component
The organic soil layer (0-35 cm) of 17 sites under high altitude rocky complexes (HARC) was sampled in eastern Brazil, in the Espinhaço and Mantiqueira Ranges, to evaluate the relationship of vegetation type and carbon and nitrogen isotopic
of soil genesis for most of the HARC sites, the raised data was not consistent to consider fire a key process for soil organic matter existence in these areas.
A comparative investigation of arable soils and soils with spruce vegetation is described. The arable soils are less acid and have higher contents of P, Ca, Mg and K than the forest soils. The spodic B horizons present in all soils investigated
, have lower contents of organic matter, iron and aluminium in the arable soils than in the soils with spruce.
Caractéristiques spatio-temporelles du pH, de la minéralisation, de la coloration, de l'oxydabilité au permanganate et au bichromate, de leurs relations, des acides humiques des eaux fluviales de montagne de ces régions.
Dynamics of organic matter in soils of temperate regions: its action on pedogenesis
-CaCO dans les rendzines, humus-allophane dans les andosols et humus-fer dans les sols bruns acides. Ces complexes ont des propriétés différentes sur les plans biologique (aptitude à résister à la biodégradation) et chimique (aptitude à résister aux
This paper defines the relationships between geographical location (which determines macroclimatic differentiation and reflects the history of the vegetation), soils (which determine hydrolytic acidity, degree of base saturation and organic carbon
[b1] Inst. of Geography and Spatial Organization, Polish Academy of Sciences, Warszawa, Pologne
[a1] Inst. of Geography and Spatial Organization, Polish Academy of Sciences, Warszawa, Pologne
Soil organic matter of Iberian open woodland rangelands as influenced by vegetation cover and land management
, acidic, with low soil organic carbon contents and poor in nutrients. Areas with higher soil carbon stocks corresponded to units encroached by Retama sphaerocarpa shrubs and dehesas. Soil organic carbon (SOC) was relatively high beneath the tree canopy
affecting soil organic matter by removing the sensitive topsoil materials through water erosion.