Biogéochimie ; British Columbia ; Canada ; Exploitation forestière ; Forêt ; Lessivage ; Parcelle expérimentale ; Podzol ; Propriétés du sol ; Roberts Creek Forest ; Sol
This study investigates the effects of conventional clear-cutting on soil chemistry in Podzols of Roberts Creek Study Forest. The AA. measured forest floor composition, soil pH and salt-extractable ions concentrations in undisturbed forested stands
(control plots), stands harvested 2 to 5 years prior to sampling (cleared plots) and stands harvested 8 to 15 years prior to sampling (regenerating plots). They focused on the effects of forest harvest both on mean (differences in average values
) and dispersion parameters (differences in variance between treatments). They found that forest floors of harvested plots had lower phosphorus and potassium concentrations than control plots. It is highlighted that clear-cutting was not associated with strong soil
[b2] Vancouver Forest Region, BC Ministry of Forests, Nanaimo, Canada
Changing forest recovery dynamics in the northeastern United States
Análisis espacial ; Aprovechamiento del suelo ; Bosque ; Estado de Nueva York ; Estados Unidos ; Ocupación del suelo ; Paisaje rural ; Repoblacíon forestal ; Teledetección
Forest ; Land use ; Land utilisation ; New York State ; Reforestation ; Remote sensing ; Rural landscape ; Spatial analysis ; United States of America
Bidging natural and social sciences perspectives, the AA. contribute to a multidisciplinary literature on US forest change by documenting at a fine scale changing land-cover patterns, identifying their key geophysical and social driving forces
, and evaluating the strength and character of the on-going forest transition.
Effects of wildfire and laboratory heating on soil aggregate stability of pine forests in Galicia : the role of lithology, soil organic matter content and water repellency
An approach to spatially explicit reconstruction of historical forest in Northeast China
China ; Cultivated land ; Forest ; Historical period ; Land use ; Model ; North-Eastern China ; Remote sensing ; Satellite imagery
Aprovechamiento del suelo ; Bosque ; China ; Imagen satélite ; Modelo ; Suelo cultivado ; Teledetección ; Época histórica
Using potential natural vegetation (PNV) and satellite-based land use data, the AA. determined the possible maximum distribution extent of forest cover in the absence of human disturbance. Subsequently, topography and climate factors were selected
to assess the suitability of land for cultivation. Finally, a historical forest area allocation model was devised on the basis of the suitability of land for cultivation. As a case study, the AA. used the historical forest area allocation model
to reconstruct forest cover for 1780 and 1940 in Northeast China with a 10-km resolution. To validate the model, the AA. compared satellite-based forest cover data with the reconstruction for 2000. The results demonstrated that the provincial forest area could
be transformed into forest cover maps well using the model.
Cultivated land ; Forest ; Land use ; Slovenia ; Soil ; Soil properties ; Spatial distribution ; Valley
Aprovechamiento del suelo ; Bosque ; Distribución espacial ; Eslovenia ; Propiedades del suelo ; Suelo ; Suelo cultivado ; Valle
Mislinja Valley is a sub-alpine valley located in northern Slovenia. The valley is predominantly covered by forests, which occupy nearly 70 % of the area. Only 25 % of the area is covered by agricultural land. Greening is the prevalent change
Age and origin of forests in south-western Poland and their importance for ecological studies in man-dominated landscapes
Ecology ; Environmental management ; Forest ; Historical geography ; Land use ; Landscape ; Poland ; Spatial distribution
Aprovechamiento del suelo ; Bosque ; Distribución espacial ; Ecología ; Geografía histórica ; Gestión del medio ambiente ; Paisaje
The aim of the research is to describe the former and current distribution of forests from the first topographical map available, dated 1780, until the end of the twentieth century, in two regions in south-western Poland, and to present those
Traditional land use of the boreal forest landscape : examples from Lierne, Nord-Trøndelag, Norway
Biodiversity ; Boreal forest ; Ecology ; Environmental management ; Fodder ; Land use ; Nature conservation ; Norway
Aprovechamiento del suelo ; Biodiversidad ; Ecología ; Forraje ; Gestión del medio ambiente ; Noruega ; Protección de la naturaleza
The article documents former land use practices in a boreal forest landscape in Nordli, Central Norway, and discuss the ecological consequences with respect to conservation. Fodder harvesting methods are closely related to ecological conditions
and the production level in the boreal forest landscape. Burning to improve the forest pastures is a natural part of the traditional farming system. To ensure successful conservation of the biodiversity of these forests, former land use practices should be documented
Simulation on the dynamics of forest area changes in Northeast China
China ; Econometric model ; Forest ; Forestry ; Land use ; North-Eastern China ; Production ; Resource management ; Simulation ; Vegetation dynamics
Aprovechamiento del suelo ; Bosque ; China ; Dinámica de la vegetación ; Gestión de los recursos ; Modelo econométrico ; Producción ; Silvicultura ; Simulación
To explore the dynamics of forest area change in Northeast China, an econometric model is developed which is composed of three equations identifying forestry production, conversion from open forest to closed forest and conversion from other land
uses to closed forest so as to explore the impacts on the forest area changes from demographic, social, economic, location and geophysical factors. On this basis, the AA. employ the Dynamics ofLand System (DLS) model to simulate land-use conversions
between forest area and non-forest cover and the land-use conversions within the sub-classes of forest area for the period 2000–2020 under business as usual scenario, environmental protection scenario and economic growth scenario. The simulation results
show that forest area will expand continuously and there exist various kinds of changing patterns for the sub-classes of forest area.
Geomorphographic terrain classification for predicting forest soil properties in Northwestern Switzerland
Basilea ; Clasificación de los suelos ; Estrategia de actores ; Inclinación de la vertiente ; Modelo ; Modelo numérico de terreno ; Previsión ; Propiedades del suelo ; Suelo ; Sueloforestal ; Suiza
Basel ; Decision making process ; Digital elevation model ; Forecast ; Forest soil ; Model ; Slope gradient ; Soil ; Soil classification ; Soil properties ; Switzerland
This study describes a terrain analysis method that combines modeled and defined geomorphographic terrain attributes with detailed field knowledge and local mapping experience. 450 forest soil profiles were used to statistically analyze
sites were selected in 3 categories of land use/vegetation cover (green forest, pine forest and cropped areas). Infiltration is extremely rapid under green forest but falls considerably under pine forest and in formerly cropped soils. The statistical
the vulnerability of Andisols' soil properties and infiltration to land use modification, while also highlighting the influence of the type of forest cover present.
Changes in physico-chemical, microbial and enzymatic activities during restoration of degraded sodic land : Ecological suitability of mixed forest over monoculture plantation
Aprovechamiento del suelo ; Biogeoquímica ; India ; Propiedades del suelo ; Repoblacíon forestal ; Suelo ; Suelo salino ; Uttar Pradesh
Biogeochemistry ; Ecological restoration ; India ; Land use ; Mixed forest ; Reforestation ; Saline soil ; Soil ; Soil properties ; UttarPradesh
plantations as well as mixed forest. Increase in water holding capacity (WHC), organic carbon, soil nutrients, microbial biomass (MB), microbial counts, CO2 flux and enzymatic activities showed significant improvement in the soil quality of rehabilitated sites
Biogeoquímica ; Bosque plano caducifolio ; Carbono ; Exposición de las vertientes ; Litología ; Materia orgánica ; Montaña ; Precipitación ; Propiedades del suelo ; Suelo
The aim of this study was to determine the effect of bedrock, mean annual precipitation (MAP) and slope orientation (SLO) on soil C accumulation under deciduous forests on the Sierra de Gata Mountains in the Central Iberian Massif (central western
Landslide soils and geomorphology in Bridger-Teton National Forest, Northwest Wyoming
Clay mineral ; Forest ; Landslide ; Slope ; Slope dynamics ; Soil properties ; Typology ; United States of America ; Wyoming
Arcilla mineral ; Bosque ; Deslizamiento deterreno ; Dinámica de vertiente ; Propiedades del suelo ; Tipología ; Vertiente
In this study, soil and geomorphic properties related to landslide occurence were studied at 18 landslides in the Bridger-Teton National Forest (BTNF). Landslides were categorized as active or inactive based on geomorphic features. Landslide soil
[b2] USDA Forest Service, Bridger-Teton National Forest, Jackson, Etats-Unis
Assam ; Equatorial forest ; Forest ; Image analysis ; India ; Land use ; Nature reserve ; Rural landscape ; Vegetation dynamics
Análisis de imagen ; Aprovechamiento del suelo ; Bosque ; Dinámica de la vegetación ; India ; Paisaje rural ; Reserva natural ; Selva ecuatorial
The study assesses land-use change in the Nameri Tiger Reserve in Assam, using Landsat imageries. Dense forests decreased sharply while open forest increased marginally. The increases in the degraded and open forest categories occurred
at the expense of dense forests, which decreased. The number of patches in the NTR landscape recorded a fivefold increase indicating a high degree of fragmentation of the habitat. Both class and patch level changes corroborate the trend of fragmentation
Acción antrópica ; Aprovechamiento del suelo ; Bosque ; Desarrollo regional ; Eslovenia ; Karstificación ; Plantación forestal ; Repoblacíon forestal ; Siglo 19 ; Siglo 20 ; Siglo 21
Forest ; Forest stand ; Human impact ; Karstification ; Land use ; Nineteenth Century ; Reforestation ; Regional development ; Slovenia ; Twentieth Century ; Twenty-first century
In this paper the intense land-use changes in the Karst region and the surrounding karst areas is presented. People first thoroughly cleared the previously forested landscape, and then in the nineteenth century planned reforestation began. After
the Second World War uncontrolled afforestation predominated. At the beginning of the twenty-first century, predominantly low-quality forest already covered two-thirds of the Karst region. - (IKR)
Forest transition and biogeographic meaning of the current laurel forest landscape in Canary Islands, Spain
Biogeography ; Canary Islands ; Forest ; Human impact ; Land use ; Landscape dynamics ; National park ; Subtropical zone ; Vegetation dynamics
Acción antrópica ; Aprovechamiento del suelo ; Biogeografía ; Bosque ; Canarias ; Dinámica de la vegetación ; Dinámica del paisaje ; Parque nacional ; Zona subtropical
According to the forest transition theory, in the protected areas of Anaga and Teno Rural Parks (Tenerife) and Garajonay National Park (La Gomera), the forest reaction to the gradual abandonment of economic activity reveals how strongly human
activity has shaped the features of the laurel forest, which traditionally has been considered to be relatively untouched by humankind. How natural disturbances have affected this forest over the past few years has also contributed to a better understanding
of its dynamics. This study explains the key patterns of spontaneous dynamics in the Canarian laurel forest to enrich the understanding of this forest and its landscape, while highlighting the importance of human activity as the catalyst for its current
Beijing ; Carbon ; China ; Cultivated land ; Forest ; Grassland ; Land use ; Nitrogen ; Nitrogen cycle ; Soil ; Soil properties
Aprovechamiento del suelo ; Beijing ; Bosque ; Carbono ; China ; Ciclo del nitrógeno ; Formación herbácea ; Nitrógeno ; Propiedades del suelo ; Suelo ; Suelo cultivado
The objective of this study is to estimate the impact of different land-use types (natural secondary forest, man-made forest, grassland and cropland) on plant available N pool (inorganic N and microbial N), soil C stocks (organic C and microbial C
), potential net N-mineralization, net nitrification, and urea transformations rates. This was done to provide basic data in quantitative understanding of environment and agricultural implications of land-use shift from forest or grasslands to croplands
Aprovechamiento del suelo ; Bosque ; Ceniza volcánica ; Ecosistema ; Erosión de los suelos ; Erosión hídrica ; Permeabilidad ; Piroclástico ; Propiedades del suelo ; Suelo volcánico ; Vegetación
In this study the occurrence and hydrological effects of water repellency were investigated at a plot scale for different types of land use and volcanic soils in Mexican volcanic highlands from Michoacan, Mexico: [1] fir, pine and oak mixed forest
soils developed from lavas, [2] soils developed from volcanic ashes and pyroclastic sediments under sparse fir, pine and oak forest and shrubland, [3] pine and oak forested soils developed from lavas and pyroclastic sediments, and [4] bare soils
Budgeting soil erosion from floodplain and alluvial fan sediments in the western Palatinate Forest (Pfälzerwald, Germany)
Alluvial cone ; C 14 dating ; Erosion budget ; Floodplain ; Forest ; Germany ; Land use ; Palatinate ; Pollen analysis ; Soil erosion ; Stratigraphy ; Watershed
Alemaña ; Análisis polínico ; Aprovechamiento del suelo ; Balance de erosión ; Bosque ; Cono de deyección ; Cuenca hidrográfica ; Datación Carbono 14 ; Erosión de los suelos ; Estratigrafía ; Llanura de inundación ; Palatinado
The catchment selected is that of the Schwarzbach in the western Palatinate Forest. Its Holocene floodplain and those of its tributaries were studied in detail at several sites, the focus being on the thickness, characteristics and age
to the settlement history of the western Palatinate forest. By comparison with similar small Upland catchments, the erosion rates of the Schwarzbach valley are low. This may be explained by the reduced suitability of the Palatinate Forest for agriculture
, and consequently a later onset of forest clearing, mostly followed by merely extensive land use.