California ; Channel geometry ; Habitat ; Riparian vegetation ; Stream ; United States of America ; Vegetation ; Wood
for a wood jam at a smaller size than dead wood and had a greater influence on channel morphology. Due to living wood, the range of tree species and sizes that provide stable and functional in-stream large wood may be broader than previously described.
The AA. surveyed 20 stream reaches in Northern California with riparian corridors dominated by broadleaved trees and found that a high proportion of wood jams had key pieces that were still living. Living wood was capable of serving as a key piece
Air pollution and human health in Greater Manchester
(1970-1975) ; England ; Greater Manchester ; Géographie de l'Europe ; Industrie ; Lutte contre la pollution ; Mortalité ; Pollution ; Pollution atmosphérique ; Royaume-Uni ; Santé
Impact des mesures prises contre la pollution atmosphérique dans le Greater Manchester. Examen des corrélations entre la mortalité et les concentrations en éléments polluants des fumées.
Employment ; Environmental conservation ; Forest ; France ; Mountain ; Resource management ; Rhône-Alpes ; Savoie ; Wood industry
trend. Author call for greater cooperation among forest actors, greater recognition for wood workers in logging activities, and for greater promotion of the qualities of local wood. - (SLD)
Wood distribution in neotropical forested headwater streams of La Selva, Costa Rica
with respect to the thalweg, suggest that transport processes exert a greater influence on wood loads than recruitment processes.
The aim of this study is to use data data on wood loads from headwater streams in La Selva Biological Station in north-eastern Costa Rica to examine potential differences in wood dynamics between temperate and tropical headwater streams
. The variables wood diameter/flow depth, stream power, the presence of backflooding, and channel width/depth are consistently selected as significant predictors by statistical models for wood load. The results along with the spatial distribution of wood
Palaeoecology of pine (Pinus sylvestris) in the Swedish Scandes and a review of the analysis of subfossil wood
Subfossil pine (Pinus sylvestris L.) occurs in various deposits and in great freqency well above the current altitudinal pine limit in the Scandes Mountains. These tree remnants constitute a fairly continuous record of range-limit dynamics
Population growth in an intraduced hard of wood bison (Bison bison athabascae) in Northern ecology and resource management. Memorial essays honouring Don Gill.
Auto-écologie ; Bison bison athabascae ; Bison d'Amérique ; Bison sauvage ; Bovidés ; Canada ; Dynamique des populations ; Espèce protégée ; Fauve ; Great Slave Lake ; Géographie physique ; Mackenzie Bison Sanctuary ; Mammifères ; Northwest
Introduction, en 1963, d'un troupeau de 18 bisons d'Amérique dans une réserve naturelle au bord du Great Slave Lake, Northwest Territories, Canada| sur une zone de 18 000 km. Le troupeau dépasse les 700 têtes en 1981, et ne s'est pas encore divisé
Study is an examination of the role of tree planting in urban development on the Great Plains and in the making of place in the grassland biome. A. uses Norman, Oklahoma as a case study of a treeless frontier outpost in 1889 that was transformed
into an attractive college town known for shaded streets and a wooded campus (the University of Oklahoma). - (SLD)
Mapping the spatial and temporal distributions of woody debris in streams of the Greater Yellostone Ecosystem, USA
Carrying capacity ; Cartography ; Ecosystem ; Flood ; Mountain ; Remote sensing ; Spatial distribution ; Stream ; United States of America ; Wood
with airborne multispectral imagery. Field surveys were conducted on the Snake River, Soda Butte Creek, and Cache Creek in the Greater Yellowstone Ecosystem, USA. The AA. suggest a broad hypothesis for explaining woody debris distributions in mountain systems.
Seeing green in Mali's woods : colonial legacy, forest use, and local control
to reform forestry policy so that forest resource user-groups could have a greater role in management. Data on income and expenditures from a periurban fuelwood-producing village show differential access to and dependence on forest resources for livelihood.
A leader in geomorphometry in the 1950's and '60's, the American geographer W.F. Wood published little in the open literature. His best known work was a numerical system of terrain description. This paper reviews Wood's many contributions and lists
Wood storage within the active zone of the dynamic, gravel-bed, Fiume Tagliamento, Italy, was investigated at 8 sites along the river's main stem. The objective was to study variations in the distribution and abundance of wood at a sample of sites
, in order to identify downstream trends and to understand how the controls on wood storage change along the length of the river.
Deforestation and the uses of wood in the Ecuadorian Andes
Andes ; Charcoal ; Deforestation ; Domestic use ; Ecuador ; Firewood ; Land use ; Living standard ; Mountain ; Rural economy ; Wood
Wood use is examined in four study areas in highland Ecuador in terms of its importance for the rural economy and its relation to deforestation. Concludes that the need for firewood does not explain deforestation; rather it responds to the demand