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Portail d'information géographique

Résultats de la recherche (19 résultats)

Erosion models and hydrogeomorphological functioning on hill-roads (Iberian System, La Rioja, Spain)

Erosion models and hydrogeomorphological functioning on hill-roads (Iberian System, La Rioja, Spain)
Several erosion processes have been detected on road-cuts of hill-roads. The relative significance of slides, severe sheet wash and incisions was determined in 59 sections of hill-roads. The application of multivariable methods (cluster
1994

Afforestation, fire, and vegetation management in the East Bay Hills of the San Francisco Bay area

Afforestation, fire, and vegetation management in the East Bay Hills of the San Francisco Bay area
Devastating fires destroyed much property in 1923 and 1991 in the hills above the bay cities of Oakland and Berkeley (California). In 1991, over 3 300 houses were destroyed, 25 people were killed and 5 000 people rendered homeless. A main reason
1994

Soil formation and erosion in the Murree Hills, northeast Pakistan

Soil formation and erosion in the Murree Hills, northeast Pakistan
Soils at altitudes ranging from 700 to 3000 m in the Murree Hills have been examined in terms of pedogenesis and erosion. Weathering is evidenced by iron release and dissolution of calcareous materials, but the development of weathering
1994

Late Wisconsinan vegetation and environment of the Tunica Hills region, Louisiana/Mississippi

Late Wisconsinan vegetation and environment of the Tunica Hills region, Louisiana/Mississippi
Pollen, plant macrofossil, and radiocarbon-dating studies of seven exposures of fluvial sediments in the Tunica Hills region of southeastern Louisiana and southwestern Mississippi provide new information on late Wisconsinan vegetation, flora
1994

Land-use change between 1978 and 1990 in Dhankuta district, Koshi hills, eastern Nepal

Land-use change between 1978 and 1990 in Dhankuta district, Koshi hills, eastern Nepal
1994

Land-use change and the structural dynamics of Pinus kesiya in a hill evergreen forest in Thailand

Land-use change and the structural dynamics of Pinus kesiya in a hill evergreen forest in Thailand
1994

Geography instructional materials for standards-based education

HILL, A.D.
1994

Rill erosion along the thalweg of a hillslope hollow: a case study from the Cotswold Hills, central England

Rill erosion along the thalweg of a hillslope hollow: a case study from the Cotswold Hills, central England
1994

Land resource management and forest conservation in central Amazonian Peru : regional, community, and farm-level approaches among native peoples

Special attention to forest use management on hills at low and medium altitude in the valley of Palcazu. - (DWG)
1994

Apples in cow country: an alternative land use in West Texas

Irrigated apple orchards using dwarf trees are now part of the landscape of the semi-arid Texas Hill country with its center at Medina. - (DWG)
1994

A Budai-hegység hidrotermális karsztja

erosion of streams can be excluded from among karst phenomena. Author regards the Buda Hills (Hungary) a prototype of hydrothermal karst. - (JS)
1994

Geography and education: North America

HILL, A.D.
1994

Present and past soil erosion rates in catchments of the Kraichgau area (SW-Germany)

In four catchments of the Kraichgau area (SW-Germany), all covered with loess and distinguished by different combinations of natural and manmade erosion risks, total and recent soil losses from the hills were examined. The total loss was calculated
1994

Seepage erosion and its implication to the formation of amphitheatre valley heads: a case study at Obara, Japan

Seepage erosion was investigated in an amphitheatre with a semicircular valley head, steep slopes, and a flat bottom developed in granodiorite hills at Obara, Aichi prefecture, Japan. The sediment yield of seepage erosion from pipe oulets
1994

Fluvial chronology and valley floor evolution of the upper Bowmont valley, Borders Region, Scotland

draining the northern Cheviot hills, Scotland.
1994

High yielding vs. traditional crop varieties : a socio-agronomic study in a Himalayan village in India

Under irrigation, high-yielding varieties produced higher wheat yields, but in rainfed fields, these varieties did not perform better. Explains why hill people prefer older, more reliable varieties for the production of food, fodder and fuel. - (DWG)
1994

Evaluating the success of urban success stories

HILL, E.
1994

Sediment budget to assess the geomorphic effect of a cyclonic storm, New Zealand

A short-term sediment budget was constructed to assess the erosion response of a soft-rock hill country watershed to an intense rainstorm event. The watershed is located in a landslide-prone area on the east coast of the North Island, New Zealand
1994

The landslide hazard in the Himalayas: geological control and human action

project in the Middle Hills, Nepal.
1994