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Ecosystem functional changes associated with land clearing in NW Argentina

Journal Articles & Books
Décembre, 2012
Argentine

We assessed the extension of natural habitat conversion into croplands and grazing lands in subtropical NW Argentina and its impact on two key ecosystem functional attributes. We quantified changes in remotely sensed surrogates of aboveground net primary production (ANPP) and seasonality of carbon gains. Both functional attributes are associated with intermediate ecosystem services sensuFisher et al. (2009). Deforestation was estimated based on photointerpretation of Landsat imagery.

effect of land-cover change on vegetation greenness-based satellite agricultural drought indicators: a case study in the southwest climate division of Indiana, USA

Journal Articles & Books
Décembre, 2013
États-Unis d'Amérique

During the last decade, the use of the normalized difference vegetation index (NDVI) for drought monitoring applications has drawn many criticisms, mainly because a number of drivers such as land-cover/land-use change, pest infestation, and flooding may depress the NDVI, further causing false drought identification. In this study, the impacts of land-cover change on the NDVI-derived satellite drought indicator, the vegetation condition index (VCI), are presented.

Land Use and Cover Dynamics Since 1964 in the Afro‐Alpine Vegetation Belt: Lib Amba Mountain in North Ethiopia

Journal Articles & Books
Décembre, 2016

Human‐induced land use and land cover (LUC) changes threaten the ecosystem services of the vulnerable tropical afro‐alpine vegetation. Several LUC change studies are available for the Ethiopian highlands, but relatively little is known about LUC change in the afro‐alpine zones. In this study, LUC changes between 1964 and 2012 were mapped for the afro‐alpine zone of Lib Amba Mountain, part of the Abune Yosef Mountains in North Ethiopia. Historical LUC was derived from georeferenced aerial photographs of 1964 and 1982, and the present LUC (2012) from Bing Map satellite imagery.

Analysis of deforestation patterns in the Baekdudaegan preservation area using land cover classification and change detection techniques; the feasibility of restoration

Journal Articles & Books
Décembre, 2005

The Baekdudaegan Mountain Range is a backbone of the Korean Peninsula which has special spiritual and sentimental significance for Koreans and significant ecological value to diverse organisms. Despite the importance of this region, however, the natural environment of Baekdudaegan has been severely threatened by a variety of human activity and tremendous forest fires. To make management and restoration plans for the deforested areas, it is necessary to investigate quantitatively such natural and human-induced physical changes.

Mapping the vegetation changes in giant panda habitat using Landsat remotely sensed data

Journal Articles & Books
Décembre, 2011

Since the 1950s, with national policy changes and socio-economic development, the habitat of the giant pandas has altered accordingly. This can also be inferred from the population changes of the giant pandas as reported in three national surveys. Thus, monitoring the changes in giant panda habitat and then taking appropriate action would be a valuable contribution to giant panda protection. In this paper, using existing habitats and potential habitats of the giant pandas as the study area, multitemporal remotely sensed data from the three national surveys are used as the data source.

Can REDD+ Save the Forest? The Role of Payments and Tenure

Journal Articles & Books
Septembre, 2012

A recent policy response to halting global forest deforestation and degradation, and any resulting greenhouse gas emissions is REDD+, which also includes the role of conservation, sustainable management of forests and enhancement of forest carbon stocks. Although still in its infancy, the success of REDD+ will depend significantly on whether it can be economically viable and if any resulting payments are sufficient to cover the opportunity cost plus any transaction cost.

roles of roads and agricultural land use in altering hydrological processes in Nam Mae Rim watershed, northern Thailand

Journal Articles & Books
Décembre, 2008
Thaïlande

The distributed hydrology soil vegetation model (DHSVM) is applied in the 107 km² Nam Mae Rim watershed (NMRW) in northern Thailand. Simulations using land cover scenarios for 1989 and 2002, extreme deforestation, and forest, each run with and without roads, show that roads have very small effects on the mean water fluxes, but significantly increase peak flows for all land cover scenarios. The magnitude of the road effect on peak flow depends on the land cover context in which the roads are placed.

Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon pools

Journal Articles & Books
Décembre, 2012
Sri Lanka
Afrique occidentale
Global

Urban land-cover change threatens biodiversity and affects ecosystem productivity through loss of habitat, biomass, and carbon storage. However, despite projections that world urban populations will increase to nearly 5 billion by 2030, little is known about future locations, magnitudes, and rates of urban expansion. Here we develop spatially explicit probabilistic forecasts of global urban land-cover change and explore the direct impacts on biodiversity hotspots and tropical carbon biomass.

Committed carbon emissions, deforestation, and community land conversion from oil palm plantation expansion in West Kalimantan, Indonesia

Journal Articles & Books
Décembre, 2012
Indonésie

Industrial agricultural plantations are a rapidly increasing yet largely unmeasured source of tropical land cover change. Here, we evaluate impacts of oil palm plantation development on land cover, carbon flux, and agrarian community lands in West Kalimantan, Indonesian Borneo. With a spatially explicit land change/carbon bookkeeping model, parameterized using high-resolution satellite time series and informed by socioeconomic surveys, we assess previous and project future plantation expansion under five scenarios.

Events

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Après la COP28, favoriser l’innovation pour mieux mesurer l’adaptation

11 Mars 2024
Mardi 12 mars 2024 16:30 - 18:00 OÙ ? Uniquement en ligne

À mesure que les impacts du changement climatique s’intensifient, il est essentiel de comprendre si l’humanité est sur la bonne voie pour s’adapter ou sur la voie d’une augmentation des niveaux de risque. Cela soulève de nombreux défis, notamment méthodologiques. Dans le sillage de la COP28, cette conférence vise à explorer les outils qualitatifs innovants pour mesurer les progrès d’adaptation, offrant des perspectives complémentaires aux méthodes quantitatives traditionnelles.

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Alors que le changement climatique continue de s'accentuer, et que les risques associés deviennent plus intenses et complexes que prévu, le dernier rapport du GIEC a montré que les politiques et les projets d’adaptation au climat sont souvent mal suivis.

Les méthodes d’évaluation basées sur des indicateurs quantitatifs ont été jusqu’à présent prédominantes, mais elles montrent des limites, notamment en ce qui concerne la difficulté d’identifier les données statistiques qui saisissent la nature complexe de l’adaptation (par exemple, au-delà des mesures quantitatives du PIB ou du revenu).

Cet événement vise à présenter des outils qualitatifs innovants pour mesurer l’adaptation basés sur des jugements d’experts structurés : Gap Track (IDDRI), le Système d’évaluation de la résilience (Banque mondiale) et le Diagnostic de la capacité d’adaptation et de résilience des pays (Banque mondiale), sont des contributions majeures pour mieux évaluer les progrès de l’adaptation à différentes échelles.

De tels outils d’évaluation peuvent donc s'avérer essentiels, à la fois pour alimenter l’Objectif mondial d’adaptation (GGA) de la CCNUCC, en particulier le programme de travail biennal sur les indicateurs décidés à la COP28, ainsi que pour les ministères de l’Environnement et tous les partenaires de développement international, dans la perspective du deuxième bilan mondial en 2028.

Le webinaire se tiendra en ligne uniquement, en anglais avec traduction française simultanée.

En savoir plus sur le programme AdaptAction : www.afd.fr/adaptaction

Agence Française de Développement
United Nations Framework Convention on Climate Change
World Bank Group

Organizations

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