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
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.
This paper reviews current methods for constructing global knowledge of changes in tropical forest area, carbon density, biodiversity and ecosystem services. It finds a deficiency in formal institutions for global measurement and constructing global
knowledge. There is growth in interdisciplinary research into modelling forest change and estimating carbon emissions using remote sensing data, but not in studying biodiversity. Continuing uncertainty has implications for implementing the Reduced Emissions
from Deforestation and Degradation (REDD) scheme. Uncertainty could be reduced by expanding formal scientific institutions, e.g. by establishing an operational scientific global forest monitoring system, and devising formal generic rules
In the second half of the 19th century hunting had a preeminent role in the protection of wildlife and forests. Thus, at the beginning, nature conservation in Hungary was closely associated with hunting. This is clearly reflected by the contemporary
hunting journals, amply cited by author. By the end of the century it had been recognized that forests are not only the sources of economic benefits but are the bases for good feeling and health and, consequently, forests have to be preserved
Photogrammetric monitoring of small streams under a riparian forest canopy
Aerial photography ; Bank erosion ; British Columbia ; Canada ; Channel geometry ; Data processing ; Digital elevation model ; Forest ; Photogrammetry ; Riparian vegetation ; Stream
forest canopy so that the channel bed can be imaged without obstruction. DEMs generated from this platform required post-possessing to either adjust or eliminate erroneous cells introduced by the extraction process, overhanging branches
2010
[b2] BC Ministry of Forests and Range, Research Branch, Victoria, Canada
[b3] BC Ministry of Forests and Range, Northern Interior Forest Region, Prince George, Canada
Forest fire, bank strength and channel instability : the unusual response of Fishtrap Creek, British Columbia
Bank erosion ; British Columbia ; Canada ; Channel geometry ; Forest fire ; Meltwater ; Rill wash ; Stream ; Suspended load ; Watershed ; Woody debris
Agua de deshielo ; Canada ; Carga en suspensión ; Chorreo ; Colombia Británica ; Corriente de agua ; Cuenca hidrográfica ; Erosión de las riberas ; Geometria hidráulica ; Incendio forestal
In August 2003, the McLure forest fire burned 62% of the drainage basin of Fishtrap Creek. The AA. explore the linkages between changes in streamflow, suspended sediment concentration and changes in channel morphology since this fire. Although
2010
[b2] Dep. of Forest Resources Management, Univ. British Columbia, Vancouver, Canada
[b3] British Columbia Ministry of Forests and Range, Victoria, Canada
The vegetation dynamics and landscape management during 20 years of a temperate deciduous forest protected as a nature reserve in western Norway are analysed. The views held by nature managers are based on their own values and ideas regarding what
Bosque ; Gestión de los recursos ; Leña ; Medio ambiente ; Organización no gubernamental ; Política ; Política forestal ; Protección del medio ambiente ; Salud ; Valvidia
locales. L’ONG étudiée (the Forest Stewardship Council) située à Valvidia a aussi pour but de certifier des milliers d’hectares en vue de produire de la pulpe de papier. L’A analyse les réseaux de certification consommateurs-producteurs comme un mouvement
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
Agricultural practice ; Catalonia ; Erosion rate ; Forest ; Land use ; Mediterranean area ; Rainstorm ; Solution load ; Spain ; Suspended load ; Water erosion ; Watershed
The solute and suspended-sediment load following 5 rainstorms (2005–2007) with varied intensities were studied at the Vernegà experimental watershed, north-western Spain. This study investigates the capacity of each land-use (forest and agricultural
area) to yield water, suspended sediment concentration (SSC) and dissolved solid concentration (DSC). Results showed that the agriculture area produced significantly greater mean DSC than in the forest area. Geographic information system (GIS) spatial
data layers of the watershed were produced to determine the relation of tracks, landforms, slopes and forest management to SSC yield in the forest outlet during the 5 rainstorms. Agriculture practices are the main cause of soil erosion at the study area.
How will the distribution and size of subalpine Abies georgei forest respond to climate change ? A study in Northwest Yunnan, China
China ; Climatic change ; Dendrochronology ; Dendrology ; Fir tree ; Forest ; Geographical information system ; Mountain ; Scenario ; Tree line ; Yunnan
and rates of geographical change, and the altitudinal range and size of forest were predicted using GIS with various climate change scenarios. The greatest increase of recruitment has occurred near the upper treeline on north-facing slopes
, and the regeneration rate has been reduced at and below its once-optimal altitudinal range. The AA. demonstrate that the study of both upper and lower species limits of migrating subalpine species is crucial for predicting forest change, and suggest the involvement
Radial growth responses of three co-occuring species to small canopy disturbances in a secondary hardwood forest on the Cumberland Plateau, Tennessee
Biogeography ; Dendroecology ; Dendrology ; Forest ; Plant species ; Tennessee ; United States of America ; Vegetation dynamics
The AA. analyzed the radial growth patterns of Liriodendron tulipifera, Acer rubrum, and Acer saccharum growing in 39 canopy gaps in a mature secondary hardwood forest on the Cumberland Plateau in Tennessee to compare species-specific growth
the year of release initiation over the year prior, mean release durations, and mean lag times between canopy gap formation and radial growth response. These findings provide information on the successional pathway of the forest, the physiological responses
Cultural geography ; Europe ; Forest ; Geographical imagination ; Historical geography ; North America ; Urban geography ; Urban landscape
A dozen essays, written in memory of Denis Cosgrove (1948-2008), focus on a range of case studies, from paintings, maps and stereographs to memorial forests and urban landscapes. Spanning an arc from classical antiquity to twentieth-century
modernity, the essays travel through and beyond some of the iconic landscapes that served as the settings and inspiration for much of Cosgrove’s work and life: from the Greco-Roman Mediterranean to Palladio’s Veneto, and from Imperial Britain to the forests
Brazil ; Deforestation ; Development strategy ; Forest ; Regional development ; Regional disparities ; Socio-economic system ; Urban administration
century; the role of the Amazonian rainforests in the fight against climate change; the forest fragments of Brazilian coastal mountains and their development, spatial pattern and recent dynamics; the urban governance and participation in Brazil (case study
Soil aggregation, aggregate stability, organic carbon and nitrogen in different soil aggregate fractions under forest and shrub vegetation on the Loess Plateau, China
. Therefore, the aims of this study were to elucidate the effects of different plant communities on soil aggregate stability and the distribution of organic carbon and nitrogen in different aggregate fractions by using ultrasonic method, both in old forest
2010
[b3] Inst. of Soil Science, Dep. of Forest and Soil Sciences, Univ. of Natural Resources and Applied Life Sciences, Wien, Autriche
Beijing ; Carbon ; China ; Cultivated land ; Forest ; Grassland ; Land use ; Nitrogen ; Nitrogen cycle ; Soil ; Soil properties
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