Rivers turned to rock : Late Quaternary alluvial induration influencing the behaviour and morphology of an anabranching river in the Australian monsoon tropics
Tropical rivers
Australia ; Braided channel ; Climatic variation ; Monsoon ; Quaternary ; Queensland ; Sediment transport ; Stream ; Th/U dating ; Thermoluminescence ; Tropical zone
Late Quaternary alluvial induration has greatly influenced contemporary channel morphology on the anabranching Gilbert River in the monsoon tropics of the Gulf of Carpentaria. A tropical climate and reactive catchment lithology have enhanced
The Central Pacific coast of Mexico can be classified into four zones, each showing different rainfall patterns. As a result of tropical cyclone influence in the Pacific coast, the level of rainfall probability differs between zones. Such influence
Influence of phenotypic plasticity in photosynthetic functions on the spatial distributions of tropical trees
Biodiversity ; Biogeography ; Forest ; Photosynthesis ; Plant species ; Spatial distribution ; Tropical rain forest ; Tropical zone
The A. presents the case that plasticity in functional phenotypes might be studied for more rapid gain in understanding of biogeographical distribution of tropical trees. First, he presents simple theoretical logic that trees and tropical tree
The influences of topography on cold wave invasion into tropical China
Atmospheric circulation ; China ; Climate ; Orographic effects ; Southern China ; Tropical zone ; Weather type
Ce n'est pas l'abri aérologique, mais l'abri orographique (influence notamment, du Tibet et du Yungui) qui rend compte du faible impact des coulées d'air froid sur la Chine tropicale à l'ouest du 105e méridien. - (JPB)
Decadal variations of intense tropical cyclones over the Western North Pacific during 1948-2010
Années 1948-2010 ; Cyclone tropical ; Dynamique de l'atmosphère ; Fréquence ; Modèle numérique ; Pacifique ; Pacifique du Nord-Ouest ; Trajectoire ; Variabilité climatique ; Zone intertropicale
Atmospheric dynamics ; Climatic variability ; Numerical model ; Pacific Region ; Tropical cyclone ; Tropical zone
Ciclón tropical ; Dinámica de la atmosfera ; Modelo numérico ; Región Pacífica ; Variabilidad climática ; Zona intertropical
influence des variations de la température de surface de l'océan (sur le centre et l'Est du Pacifique tropical) et de l'intensité du cisaillement vertical du vent. - (JPB)
L'objet de cette revue est de présenter la recherche actuelle concernant les facteurs qui influencent la dynamique du carbone dans les forêts tropicales humides : mesures de terrain, écophysiologie, modélisation, télédétection.
Climatologie ; Cyclone tropical ; Economie de l'eau ; Ecoulement ; Gestion de l'eau ; Géographie physique ; Hydrologie ; Hydrologie fluviale ; Optimisation ; Ressource en eau ; Régime hydrologique ; Réseau de drainage ; Zone intertropicale
Caractères originaux de l'hydrologie des régions tropicales humides. Application à la gestion des ressources en eau. Problèmes particuliers posés par les cyclones tropicaux dans le cas des rivières à marées et des cours d'eau où l'influence des
The cash crop revolution in tropical Africa: an agricultural reappraisal
In this general article there are many references to West Africa, and much material that is relevant to its agricultural development. Cash-crop production can be a disruptive influence. (EMS).
Local perceptions about forests and water in two tropical catchments
Environmental perception ; Forest ; India ; Perception ; Thailand ; Tropical rain forest ; Tropical zone ; Water ; Water cycle ; Watershed
Cette étude essaie d'établir comment les habitants de deux bassins-versants tropicaux prennent en compte les forêts et perçoivent à la fois les forêts et leur propre capacité à influencer le cycle hydrologique. Les fonctions de service et de
Influence of different land uses on soil nitrogen transformations after conversion from an Indian dry tropical forest
Cultivated land ; Deforestation ; Geochemistry ; Grassland ; India ; Land use ; Mining activity ; Nitrogen ; Orissa ; Soil ; Soil properties ; Tropical rain forest
The aim of this study is to determine the effects of land uses (dry tropical forest, grassland, cropland and mine spoil) on plant available N-pool, net nitrification, net N-mineralization rates and soil microbial biomass N. It is showed that, in dry
tropical forests, land-use change affects remarkably the nitrogen transformation process in soil.
Buttresses of tropical rainforest trees influence hillslope processes
During heavy rainfall events, the buttresses of tropical rainforest trees limit the occurrence of stemflow-generated overland flow and soil erosion on hillslopes. Buttresses promote infiltration by causing stemflow to diverge into separate flow
Peat-water interrelationships in a tropical peatland ecosystem in Southeast Asia
Ecosystem ; Fire ; Humid environment ; Hydrology ; Indonesia ; Kalimantan ; Peat bog ; Pedogenesis ; Soil properties ; Tropical zone
The aim of this study was to assess the interrelationships between peat and water in a large area of tropical peatland in Central Kalimantan, Indonesia by focusing on fire susceptibility as influenced by changes in groundwater levels modelled
with the SIMGRO hydropedological model. The influence of relatively dry and wet years on fire susceptibility is demonstrated as well as the influence of monthly fluctuations in rainfall. In addition, the vegetative restoration potential of degraded peatlands
Disease ; Epidemiology ; Health ; Tropical endemic disease ; Tropical geography ; Tropical zone ; Underdevelopment
Interrogations sur la spécificité d'une géographie tropicale de la santé. Celle des maladies tropicales doit être reliée à l'environnement naturel. Néanmoins, le contexte socio-économique peut exercer une grande influence. Les pays tropicaux
Biography ; Colonialism ; History of geography ; Tropical geography ; Twentieth Century
Biografía ; Colonialismo ; Geografía tropical ; Historia de la geografía ; Siglo 20
Robequain was a pioneer of colonial and tropical geography who produced the first field-based doctoral monograph on a region in the tropical world, the Thanh Hoa in Annam. He was a passionate traveller who visited many tropical lands and wrote
generations of geographers. After mid-century his approach was a recognised as being increasingly irrelevant as independence movements proliferated in many parts of the world. Robequain’s influence on geography was less than that of P. Gourou, his friend
Aerosol ; Ciclón tropical ; Contaminación atmosférica ; Dinámica de la atmosfera ; Impacto ; Perturbación atmosférica ; Polvo
Par leur influence sur le processus de condensation et sur la dynamique des nuages, poussières et particules fines sont susceptibles d'atténuer dans de notables proportions l'intensité des cyclones tropicaux, avec élevation de la pression au cœur du