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Land degradation: creation and destruction

Land degradation: creation and destruction
Environment ; Environmental degradation ; Human impact ; Man-environment relations ; Population pressure ; Resource management
Action anthropique ; Dégradation de l'environnement ; Environnement ; Gestion des ressources ; Pression démographique ; Relation homme-environnement
Excellent discussion of the physical and human interactions that result in land degradation. Material organized as either creative destruction and destructive creation - the two are linked for in the interest of sustaining human population, one must
first destroy in order to create. Thoughtful conclusion on how land degradation can be minimized. - (DWG)

Soil degradation in Sardinia. Historical causes and current processes due to anthropogenic pressure.

Soil degradation in Sardinia. Historical causes and current processes due to anthropogenic pressure.
Degradation-Desertification.
Dégradation de l'environnement et désertification.

Agriculture developpement and land degradation in the Middle East since the neolithic period : the Israel Case.

Agriculture developpement and land degradation in the Middle East since the neolithic period : the Israel Case.
Degradation-Desertification.
Dégradation de l'environnement et désertification.

Land degradation and the coastal environment of Nigeria

Land degradation and the coastal environment of Nigeria
Coastal environment ; Human impact ; Land use ; Nigeria ; Oil industry ; Regional planning ; Soil degradation
This paper uses primary and secondary data sources to describe cases of land degradation based on the morphological units of Nigeria's shoreline. Anthropogenic influences accelerate land degradation along the coastline hence, the need

Applications of reflective remote sensing for land degradation studies in a Mediterranean environment

Applications of reflective remote sensing for land degradation studies in a Mediterranean environment
Ardèche ; France ; Modelling ; Remote sensing ; Rhône-Alpes ; Soil degradation ; Soil erosion
The aim of this book is to investigate the role of remote sensing in understanding and modelling land degradation processes. The research was carried out in the southern part of Ardèche province in France. Several degradation features are found

Differentiation of the environment and the thresholds of ecological degradation in the irrigated areas of the dry zone

Differentiation of the environment and the thresholds of ecological degradation in the irrigated areas of the dry zone
Agrosystem;Farming systems ; Arid land;Arid environment ; Degradation ; Ecosystem ; Irrigation

Halting land degradation

Halting land degradation
Action anthropique ; Cycle de l'eau ; Déboisement ; Dégradation ; Désertification ; Environnement ; Erosion des sols ; Géographie humaine ; Monde ; Surpâturage

The Ecology of resource degradation and renewal

The Ecology of resource degradation and renewal
Dégradation ; Ecologie ; Environnement ; Géographie de l'Europe ; Renouvellement ; Ressource ; Royaume-Uni

Agricultural growth, environmental degradation, poverty and nutrition : links and policy implications

Agricultural growth, environmental degradation, poverty and nutrition : links and policy implications
Agriculture ; Dégradation de l'environnement ; Développement rural ; Nutrition ; Pauvreté ; Production agricole ; Technique agricole
Agricultural production ; Agricultural technique ; Agriculture ; Environmental degradation ; Nutrition ; Poverty ; Rural development
The links and feedbacks between agricultural growth, environmental degradation, and poverty are complex and manifold. This paper examines these linkages under two situations : when new yield-increasing agricultural technologies are available

Környezeti válság a Küküllõk és a Középsõ-Maros vidékén

Applied ecology ; Applied geography ; Environment ; Environmental degradation ; Pollution ; Romania ; Transylvania
Dégradation de l'environnement ; Ecologie appliquée ; Environnement ; Géographie appliquée ; Pollution ; Roumanie ; Transilvania
Author discusses the consequences of environmental degradation and pollution in the Küküllõ and Middle-Maros area Transsylvania, Romania. - (JS)

Urbanisation et degradation de l environnement physique dans les quartiers-est de Libreville : PK 6-PK 11

Urbanisation et degradation de l environnement physique dans les quartiers-est de Libreville : PK 6-PK 11
Libreville - Gabon - Afrique Centrale - Afrique - Urbanisme - Aspect de l environnement - Condition Sociale

The impact of environmental degradation on grain production in China, 1975-1990

The impact of environmental degradation on grain production in China, 1975-1990
Agriculture ; Chine ; Céréale ; Disparités régionales ; Dégradation de l'environnement ; Erosion des sols ; Productivité agricole ; Récolte ; Technique agricole
Agricultural productivity ; Agricultural technique ; Agriculture ; Cereal ; China ; Crop ; Environmental degradation ; Regional disparities ; Soil erosion
The AA. hypothesize that environmental degradation had a major effect on grain production in many of China's agricultural areas. A nationwide fixed effect grain-yield function is introduced which incorporates both traditional input variables
and an additional set of variables that reflect trends in environmental degradation at the provincial level. The model is estimated using time-series data for the period from 1978 to 1980.

Well drained soils with a degraded Bt horizon in loess deposits in Belgium| relationship with paleoperiglacial processes

Well drained soils with a degraded Bt horizon in loess deposits in Belgium| relationship with paleoperiglacial processes
Belgique ; Fragipan ; Géographie physique ; Horizon Bt dégradé ; Héritage périglaciaire ; Loess ; Paléopériglaciaire ; Pédogenèse ; Périglaciaire ; Sol ; Zone tempérée
in permafrost aggrading in an environment with relatively high water supply from the subsoil. The degree of degradation, and its distribution in the landscape, can be explained in a much more satisfactory way by these processes associated with a periglacial
The presence of a compact fragipan horizon help to explain the association of the degradation of the soil and the permeability of the substratum. This is possible on basis of the hypothesis which links the fragipan development to ice segregation

Defining degradation : the impacts of swidden on forests in Northern Thailand

Defining degradation : the impacts of swidden on forests in Northern Thailand
Environment ; Environmental degradation ; Ethnic community ; Forest ; Land clearing ; Shifting cultivation ; Thailand ; Vegetation dynamics
Culture itinérante ; Dynamique de la végétation ; Défrichement ; Dégradation de l'environnement ; Environnement ; Ethnie ; Forêt ; Thaïlande
A reevaluation of the usual view that shifting cultivation leads to forest degradation, soil erosion, water shortages, and other undesirable changes. Author examines the swidden farming near three upland villages in northern Thailand. swiddens

A Comparative study of land degradation in Baringo and Machakos Districts, Kenya in African Resources. Volume 2. Management.

A Comparative study of land degradation in Baringo and Machakos Districts, Kenya in African Resources. Volume 2. Management.
Action anthropique ; Aménagement régional ; Climat ; Environnement ; Erosion des sols ; Géographie de l'Afrique ; Kenya ; Sol ; Utilisation du sol
Land degradation in two sub-humid to semi-arid districts of Kenya is related to the interrelationship of the physical and socio-political environment.

Land degradation and its control strategies in China

Land degradation and its control strategies in China
Afforestation ; China ; Cultivated land ; Desertification ; Environment ; Environmental management ; Nutrient ; Pollution ; Salinisation ; Soil degradation ; Soil erosion ; Statistics ; Water erosion ; Water resources ; Wind erosion
Boisement ; Chine ; Dégradation des sols ; Désertification ; Environnement ; Erosion des sols ; Erosion hydrique ; Erosion éolienne ; Gestion de l'environnement ; Nutriment ; Pollution ; Ressource en eau ; Salinisation ; Sol cultivé ; Statistique
Following the discussion of the causes and disasters of land degradation, this paper presents the achievements gained in prevention and control of land degradation since 1949. The several control strategic measures in combating land degradation

Evaluation of the natural susceptibility of shallow lakes to degradation in Shallow lakes environment. (L'environnement des lacs eutrophes)

Evaluation of the natural susceptibility of shallow lakes to degradation in Shallow lakes environment. (L'environnement des lacs eutrophes)
Bassin-versant ; Dégradation de l'environnement ; Ecosystème ; Eutrophisation ; Géographie de l'Europe ; Géomorphométrie ; Lac ; Milieu dulçaquatique ; Pollution ; Polnocno-Wschodni ; Pologne ; Utilisation du sol

Assessing the degradation of saline wetlands in an arid agricultural region in Spain

Assessing the degradation of saline wetlands in an arid agricultural region in Spain
Agropedology ; Aragón ; Arid area ; Aridity ; Environmental degradation ; Humid environment ; Inventory ; Playa ; Remote sensing ; Salinity ; Spain
Agropédologie ; Aragón ; Aridité ; Domaine aride ; Dégradation de l'environnement ; Espagne ; Inventaire ; Milieu humide ; Playa ; Salinité ; Télédétection
with the available disperse data about these wetlands'toponomy and location. The degraded landscape appearance of the surviving wetlands, mainly affected by agricultural intensification, dumping and farming, has been quantitatively assessed. The integration of remote

Environmental change in the Kalahari : integrated land degradation studies for nonequilibrium dryland environments

Environmental change in the Kalahari : integrated land degradation studies for nonequilibrium dryland environments
Arid area ; Botswana ; Ecosystem ; Hydrochemistry ; Kalahari ; Model ; Nutrient ; Over-grazing ; Pastoral ; Scrub ; Soil degradation ; Soil moisture ; Soil water
Patterns of ecological change, notably increased bush dominance, have been linked to increased cattle-grazing intensity, but it remains contentious whether these changes represent land degradation. Given the inherent ecological variability
of drylands, the AA. argue that degradation assessments should be based, not on ecological observations alone, but on the study of long-term changes in pastoral production figures and on changes in the ecologically determining factors of soil water and soil
nutrient avaibility. They present a model of ecosystem dynamics that does not display bush encroachment as a definite form of land degradation.

Crossing the thresholds : human ecology and historical patterns of landscape degradation

Crossing the thresholds : human ecology and historical patterns of landscape degradation
Landscape sensitivity : principles and applications in northern cool temperate environments
Action anthropique ; Dégradation de l'environnement ; Ecologie humaine ; Erosion des sols ; Géographie historique ; Islande ; Modélisation ; Politique agricole commune ; Surpâturage ; Téphrochronologie ; Utilisation agricole du sol
Agricultural land use ; Common agricultural policy ; Environmental degradation ; Historical geography ; Human ecology ; Human impact ; Iceland ; Modelling ; Over-grazing ; Soil erosion ; Tephrochronology
The AA. assess the extent to which common land domestic grazing pressures were the primary external force causing soil erosion and land degradation during the period of occupation from ca. 874 AD in Southern Iceland. They first provide field
observation of soil erosion, temporally defined by tephrochronology, to highlight the extent of land degradation during this period. The tragedy of the commons explanation of degradation is then assessed by evaluating historic documentary sources

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