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Sediment yield under different land uses in the Spanish Pyrenees

Sediment yield under different land uses in the Spanish Pyrenees
Agricultural land use ; Experiment plot ; Land use ; Mountain ; Pyrénées ; Rill wash ; Sediment budget ; Soil erosion ; Spain

A geomorphological approach to soil erosion studies in Lesotho. Case studies of soil erosion and land use in the southern Lesotho Lowlands in Monitoring soil loss at different observation levels. Case studies of soil erosion in the Lesotho Lowlands.

A geomorphological approach to soil erosion studies in Lesotho. Case studies of soil erosion and land use in the southern Lesotho Lowlands in Monitoring soil loss at different observation levels. Case studies of soil erosion in the Lesotho Lowlands.
The first aim is to study erosion on different scales (catchment, subcatchment, runoff plot) in order to find the optimum one for measuring the impact of land use on erosion. The second aim is to try to quantify erosion from various land use

The effect of land cover/vegetation on soil water dynamic in the hilly area of the loess plateau, China

The effect of land cover/vegetation on soil water dynamic in the hilly area of the loess plateau, China
water ressources. In 1986, 15 plots of land were planted with 5 vegetation types : pine woodland, shrubland, sloping cropland, alfalfa and semi-natural grassland. Soil water content, runoff, soil erosion were measured for each plot and environmental

Rainfall-driven Episodic Flood Events : are they a major factor in moulding New South Wales arid land vegetation patterns ?

Rainfall-driven Episodic Flood Events : are they a major factor in moulding New South Wales arid land vegetation patterns ?
This paper reports the response of arid land plant species to high-rainfall-driven episodic flood events and how grazing pressure from native and introduced herbivores can impact on native species response. A systematic study was conducted
to understand the botanical composition in flooded and control areas on 25 m2 fenced and unfenced plots subjected to flooding and non-flooding. For 6 years following flooding, species richness in the flooded area was twice that of unflooded areas. In particular
, 27 native species from 13 families were recorded both in the enclosed and open plots located in the flooded area.

Land-use impacts on surface runoff and soil detachment within agricultural sloping lands in Northern Vietnam

Land-use impacts on surface runoff and soil detachment within agricultural sloping lands in Northern Vietnam
Cultivated land ; Experimental catchment ; Infiltration ; Land use ; Plant canopy ; Rill wash ; Slope gradient ; Soil properties ; Vietnam ; Water erosion
in Northern Vietnam. Three replicate plots were set up on each of 5 land-uses. Results and discussion.
Two consecutive years of investigation on soil surface features, surface runoff and soil detachment within 1-m2 microplots on 40% slope highlighted the effects of land-use change, vegetation cover and biological activity on the water pathways

Spatial and seasonal variations of soil salinity following vegetation restoration in coastal saline land in eastern China

Spatial and seasonal variations of soil salinity following vegetation restoration in coastal saline land in eastern China
In Chongmind Island, eastern China, the AA. explored the way vegetation restoration affected the profile distributions of soil moisture and salinity in various seasons in naturally salt-affected coastal saline land. In four types of vegetation, five
soil cores were acquired in the 80 cm depth range. Salt profiles showed the higher values in surface soil in control plots, whereas the pattern of soil salinity showed the reverse trend under vegetation. The effect of vegetation restoration
on the profile distributions of salt is significant. In control plots, soil moisture and salinity showed a clear seasonal trend. Relative to control plots, the seasonal trend of soil moisture and salinity under vegetation appeared to be complex for no clear trend
was observed. It can be concluded that plant communities significantly affect the spatial–temporal distribution of soil salinity. The selection of plant species is important in the reclamation of costal saline land.

A propos de l’origine du cadastre parcellaire en Belgique

Belgium ; Cadastral survey ; France ; Land ; Landed property ; Plots of land ; Taxation system

Les empreintes de la législation foncière dans l'extension du reboisement à Madagascar

Forest ; Land ; Land rights ; Legislation ; Malagasy Republic ; Plots of land ; Reforestation ; Resource management

L'usage de l'espace à Ouessant au milieu du XIXe siècle

A propos des landes et des friches
Agriculture ; Brittany ; France ; Heathland ; Historical geography ; Land use ; Landscape ; Livestock farming ; Ouessant ; Plots of land ; Rural area ; Wasteland
Agriculture ; Bretagne ; Elevage ; Espace rural ; France ; Friche ; Géographie historique ; Lande ; Ouessant ; Parcellaire ; Paysage ; Utilisation du sol
Cette recherche qui s'appuie sur l'analyse des documents cadastraux d'époque (1842 et 1844) permet de constater une spécialisation poussée de l'espace de l'île. Les landes constituent alors une ressource importante palliant l'absence de boisement
sur l'île. La grande lande (Ulex europaeus) est semée et récoltée tandis que la petite lande qui se développe naturellement est prélevée ou pâturée. L'évolution actuelle du paysage est liée à un abandon progressif de l'agriculture et de l'élevage

The western suburb of medieval Dublin : its first century

Dublin ; Economic activity ; Historical geography ; Ireland ; Land ; Land use ; Middle Age ; Thirteenth Century ; Twelfth Century ; Urban morphology ; Urban site
of burgage plots in the area immediately outside the western mural-gate. This suburb experienced subdivision of plots soon afterwards. The first move toward this planned development of a western suburb was to found St Thomas's Priory in this western area

Runoff and interrill erosion on sandy soils under cultivation in the western Paris Basin : mechanisms and an attempt at measurement

Bassin parisien ; Cultivated land ; Experiment plot ; France ; Land use ; Rainfall simulation ; Rill wash ; Sedimentology ; Soil erosion ; Splash ; Water erosion ; Watershed
Measurements made on different scales, such as rainfall simulations on 1 m2 and 20 m2 experimental plots and water sampling at the outlet of a watershed, enable the analysis of the mechanisms of pluvial erosion and therefore the importance

Effects of fire and of clearing in a mediterranean Quercus ilex woodland : an experimental approcach

Catalonia ; Environment management ; Fire ; Flow ; Forest ; Geosystem ; Land clearing ; Mediterranean area;Mediterranean region ; Mountain ; Oak ; Sediment transport ; Slope ; Soil ; Spain
The object of the study is to compare the importance of soil and nutrient losses from plots in an ever green oak woodland under different environmental conditions.

Vegetation effects on soil and water losses on weathered granitic hillslopes, South China

Using small experimental plots under different vegetation cover, this study examines the effects of land use on soil and water losses.

Analysis and modeling of soil conservation measures in the Three Gorges Reservoir Area in China

China ; Erosion rate ; Experiment plot ; Hubei ; Model ; Simulation ; Soil conservation ; Soil erosion ; Water erosion ; Watershed
Experimental plots were constructed in the Zhangjiachong Watershed of the Three Gorges Reservoir Area to evaluate soil erosion of traditional slope land farming and effects of soil conservation measures. Surface runoff and sediment from
the watershed and each plot were collected and measured during 2004-2007. Field investigations indicated that hedgerows were the best for soil erosion control, followed by stone dike terraces and soil dike terraces. The Water Erosion Prediction Project (WEPP
) model was used to simulate erosion of annual and rainfall events both at the watershed and plot levels with suitable results.

Effects of two perennials, fallow and millet on distribution of phosphorus in soil and biomass on sloping loess land, China

Effects of two perennials, fallow and millet on distribution of phosphorus in soil and biomass on sloping loess land, China
China ; Cultivated land ; Fallow land ; Land use ; Loess ; Millet ; Plateau ; Scrub ; Slope gradient ; Soil erosion ; Soil moisture ; Vegetation ; Watershed
This study assesses the impact of vegetation restoration on the distribution of phosphorus (P) and aboveground biomass on a sloping land in the Liudaogou catchment in Shenmu County. the AA. use 4 experimental plots with a shrub, Korshinsk Peashrub

Livelihood diversification and cropland use pattern in agro-pastoral mountainous region of eastern Tibetan Plateau

Agricultural land use ; Agro-pastoralism ; China ; Household ; Land use ; Mountain ; Sustainable development ; Tibet
Through stratified random sampling survey, participatory rural appraisal, investigation of household'plots and statistical methods, 63 households and 272 cropland plots were systematically investigated and sampled. The results show : 1) Different
types of household have variety livelihood strategies; 2) Each livelihood strategy has its own impact on land use, mainly affecting land use type and land use intensification level; 3) Diversification into off-farm activities could be the key of building
sustainable livelihood and the essential approach of realizing sustainable land use in the region.

Land use change effects on abandoned terraced soils in a Mediterranean catchment, NE Spain

Land use change effects on abandoned terraced soils in a Mediterranean catchment, NE Spain
Agricultural land use ; Catalonia ; Land use ; Mediterranean area ; Olive tree ; Rill wash ; Sediment budget ; Semi-arid area ; Soil ; Soil properties ; Spain ; Vinegrowing area ; Wasteland ; Watershed
The AA. assess the effect of land use and land use change on soil degradation or regeneration, taking into account the main physicochemical properties, runoff generation, sediment yield and nutrient depletion, at a plot and catchment scale

Evaluation of the EUROSEM model with single event data on Steeplands in the Three Gorges Reservoir Areas, China

China ; Cultivated land ; Erosion rate ; Hubei ; Land use ; Model ; Simulation ; Slope gradient ; Soil erosion ; Water erosion ; Watershed
Reservoir areas. Simulations were carried out on plots representing 4 management treatments : uncultivated land, contoured-cultivated land with hedgerows and contoured-cultivated land with hedgerows + fertilizer. Results showed that, in most cases, EUROSEM
predicted runoff reasonably well. This model is capable of differentiating impacts of land use changes and soil protection mesures on steeplands in this area.

Des essarteurs écologistes: les Pwo-Karen du nord et de l'ouest thaïlandais

Environment ; Environmental perception ; Ethnic community ; Fallow land ; Farming system ; Forest ; Mountain ; Plots of land ; Slash and burn agriculture ; Territory ; Thailand ; Way of life

Effets des structures agraires sur le ruissellement et l'érosion hydrique

Agrarian structure ; Catchment area;Watershed ; Cultivated land ; France ; Haute-Normandie ; Plots of land ; Rill wash;Runoff ; Soil erosion ; Water erosion

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