Patenting an arid frontier : use and abuse of the public land laws in Owens Valley, California
Aridlands ; California ; Farming ; Historical geography ; Land improvement ; Land policy ; Land register;Cadastral survey ; Land speculation ; Land;Real estate ; Settlement ; United States
Cadastre ; California ; Domaine aride ; Etats-Unis ; Exploitation agricole ; Foncier ; Géographie historique ; Mise en valeur ; Owens Valley ; Peuplement ; Politique foncière ; Siècle 19 ; Spéculation foncière
Five nineteenth-century policies for alienating the federal public domain only partially fulfilled their objectives when applied in the arid setting of Owens Valley. Public land policies were adequate for settling the well-watered north end
, but unsuccessfull in reclaiming the irrigable lands of the vast southern arid stretches.
Powell's vision of aridland settlement reexamined : Owens Valley, California
Aridlands ; California ; Environment ; Land improvement ; Land;Real estate ; Pioneer settlement ; Resource management ; United States ; Water resources
California ; Domaine aride ; Environnement ; Etats-Unis ; Foncier ; Front pionnier ; Gestion des ressources ; Mise en valeur ; Ressource en eau
John Wesley Powell's Report on the lands of the arid region of the United States (1878) warned of the folly of trying to impose the habits of the humid East on the dry lands of the West. This analysis of the water question in an arid part
The global problem of land degradation and desertification
Danube ; Domaine aride ; Domaine semi-aride ; Dégradation des sols ; Désertification ; Hongrie ; Tisza
Arid area ; Danube ; Desertification ; Hungary ; Semi-arid area ; Soil degradation
Degradation processes within subhumid, semi-arid and arid areas are defined as desertification processes to draw attention to the specific dangerous situation in these areas. Hungary signed the Convention on Desertification, as increasing aridity
Arid area ; China ; Desert ; Desertification ; Drought ; Irrigation ; Oasis ; Over-grazing ; Regional planning ; Semi-arid area ; Soil erosion ; Water resources
In the arid and semiarid areas of China, human actions play a significant role in desertification processes. The main problems are the reduction of biomass, decline of preferred species and soil erosion induced by overgrazing. The AA. show the land
A large amount of recent and current research in aridlands geomorphology suggests that landform development is episodic, with climatic changes in timescales of decades to centuries providing an overable process framework. This article provides
Approaching local limits to field expansion. Land use pattern dynamics in semi-arid Burkina Faso
Aerial photography ; Agropedology ; Burkina ; Cultivated land ; Land use ; Population growth ; Semi-arid area ; Subsistence agriculture ; Thematic mapping
Agriculture de subsistance ; Agropédologie ; Burkina ; Cartographie thématique ; Croissance démographique ; Domaine semi-aride ; Photographie aérienne ; Sol cultivé ; Utilisation du sol
The objective of this paper is to evaluate in what ways subsistence farmers in semi-arid West Africa contribute to this process of change by altering their land use patterns in response to increased demographic pressure and environmental constraints
. Sharply contrasting experiences occurring at micro scale need to be incorporated in conceptual models of the evolutionary trends in land use systems.
Land degradation and the development of land use policies in a transitional semi-arid region
Soil erosion, land degradation and social transition. Geoecological analysis of a semi-arid tropical region, Kenya
Agriculture ; Arid area ; Irrigation ; Kenya ; Land use ; Pastoral ; Planning ; Resource management ; Semi-arid area ; Soil erosion
Agriculture ; Domaine aride ; Domaine semi-aride ; Erosion des sols ; Gestion des ressources ; Irrigation ; Kenya ; Pastoral ; Planification ; Utilisation du sol
The Baringo District has long been regarded as one of the most severely degraded in Kenya. This paper briefly describes the Baringo basin, and the changes in society, land use and the environment which have occurred during the past 150 years
, as a background to major land use policy questions currently being addressed in the area.
Les sols et les problèmes liés au sol dans le continent asiatique: écosystèmes, classification des sols, conditions agricoles en zone aride, irrigation, cultures principales, forêts et pâturages.
Cultural antecedents of J. W. Powell's aridlands report
Domaine aride ; Eau ; Etats-Unis ; Etats-Unis de l'Ouest ; Gestion des ressources ; Géographie historique ; Histoire de la géographie ; Irrigation ; Mise en valeur ; Siècle 19 ; Utilisation du sol
The nineteenth-century land-use manifesto for the arid American West prepared by J. Powell was based in part on his observations of Mormon and Hispano resource use. - (DWG)
Arid area ; Atmospheric circulation ; Bibliography ; Climatology ; Energy balance ; Forest ; Mesoclimate ; Microclimate ; Periglacial features ; Semi-arid area ; Tundra ; Urban climate
This survey is limited to 3 themes prevalent in research published in 1996 : land-surface heterogeneity, mesoscale circulations, and the energy budgets and microclimates of 4 particular surface classes (forests, arid and semi-arid areas, urban areas
Paysages urbains. Couches limites stables et phénomènes associés. Environnements arides, semi-arides et saisonnièrement secs. Environnements dominés par la glace et la neige. Echange de vapeur d'eau surface-atmosphère.
Control factors in the segregation of mollisols and aridisols of the semiarid-arid transition of Argentina
Agricultural land use ; Argentina ; Arid area ; Land use ; Semi-arid area ; Soil ; Soil properties ; Taxonomy ; Vegetation
Argentine ; Domaine aride ; Domaine semi-aride ; Propriétés du sol ; Sol ; Taxonomie ; Utilisation agricole du sol ; Utilisation du sol ; Végétation
The main objective of this research is to determine the influence of edaphic parameters and mean annual precipitation on the soil organic carbon levels in the surficial horizons of the semiarid-arid transition of Argentina, in order to establish
Spatial and temporal variations in soil erosion and deposition due to land-levelling in a semi-arid area of Basilicata (Southern Italy)
Arid area ; Basilicata ; Erosion rate ; Geographical information system ; Italy ; Land use ; Model ; Risk ; Semi-arid area ; Soil erosion ; Spatial variation
Années 1955-2002 ; Basilicata ; Domaine aride ; Domaine semi-aride ; Erosion des sols ; Italie ; Modèle ; Risque ; Système d'information géographique ; Utilisation du sol ; Variation spatiale ; Vitesse d'érosion
This paper examines the changes from 1955 to 2002 in soil erosion and deposition due to changes in land-use patterns in the semi-arid territory of Craco, which is characterised by landsliding and badland erosion. This analysis integrates the Unit
Stream Power Erosion Deposition (USPED) model with a geographic information system (GIS) to quantify erosion risk and predict deposition patterns. Soil data, land use inventory, digital elevation data and climatic atlases were used as resource data sets