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Planning for the conservation and sustainable use of urban forestry in Addis Ababa, Ethiopia

Journal Articles & Books
Décembre, 2013
Éthiopie

The planning and management of urban forest has become increasingly important as a focus of urban environmental management. The objectives of this study were to analyze the landuse/land cover and to map functional zones of the urban forest in the upper catchment area of Addis Ababa. This study identifies five landuse/land cover types: (i) Eucalyptus–Juniperus dominated forest, (ii) mixed native forest, (iii) built-up areas, (iv) Eucalyptus plantation (v) crop/grazing lands.

Effects of Land-Use Change on Soil Organic Carbon and Nitrogen

Journal Articles & Books
Décembre, 2013
Iran

Although the literature is full of references to soil degradation under forest cultivation, very little information is available on changes in soil properties following deforestation of the Hyrcanian area in northern Iran. Also, the literature provides little information on the effects of conversion from deforested cropland to grazing, a likely direction of land-use change in northern Iran. The objective of this study was to assess the effect of conversion of native forests into farmlands and/or grazing lands on soil properties and nutrients in the Hyrcanian forest.

Reconstruction of Holocene environmental changes in two archaeological sites of Calabria (Southern Italy) using an integrated pedological and anthracological approach

Journal Articles & Books
Décembre, 2013
Italie

This paper focuses on the reconstruction of Holocene climatic and environmental changes in two archaeological sites of southwestern and north-central Calabria (southern Italy). It is based on a comparison of geoarchaeological, pedological and pedoanthracological data from soil profiles in the coastal hilly and inland mountainous surroundings of Palmi and Cecita Lake, respectively. At the Palmi site, the representative soil profile includes settlements and artefacts ranging from late Neolithic to late early Bronze Age and undifferentiated historical epochs.

Predicting regolith thickness in the complex weathering setting of the central Mt Lofty Ranges, South Australia

Journal Articles & Books
Décembre, 2013
Australie

We describe a model to predict regolith thickness in a 128,000ha study area in the central Mt Lofty Ranges in South Australia. The term regolith encompasses soil (A and B horizons) and highly weathered bedrock (C horizon). The thickness of the regolith has a major control on water holding capacity for plant growth and movement of water through the landscape, and as such is important in hydropedological modelling and in evaluating land suitability, e.g. for forestry and agriculture. Thickness estimates also have direct application in mineral exploration and seismic risk assessment.

Access to cryptic arthropod larvae supports the atypical winter breeding seasonality of Meyer’s Parrot (Poicephalus meyeri) throughout the African subtropics

Journal Articles & Books
Décembre, 2013
Tanzania
Zambie

Meyer’s Parrot Poicephalus meyeri has the widest distributional range of any African parrot. There are six subspecies distributed throughout the African subtropics, all of which manage to breed successfully during the winter dry season when few other cavity-nesting birds are actively nesting. In 2004, we recorded Meyer’s Parrots feeding on four cryptic arthropod larvae incubating inside fruits and pods in their seasonal diet. All of these were previously unknown in the diet of African parrots.

Property rights and climate change vulnerability in Turkish forest communities: a case study from Seyhan River Basin, Turkey

Journal Articles & Books
Décembre, 2013
Turquie

Turkey is expected to experience significant climate change, including increased temperatures and desertification. As these changes affect forestry, agriculture and animal husbandry, they threaten the livelihoods of forest communities across the country. In addition, other, institutional factors such as the property regime can act in tandem with physical stressors to increase communities’ overall vulnerability to climate change.

Integrating national forestry initiatives in India with international climate change policy

Journal Articles & Books
Décembre, 2013
Inde

Policy initiatives in India, such as the Social Forestry Program and later the Joint Forest Management, were introduced for their co-benefits, including forest protection, employment opportunities, and added income for communities living in and around the forests. The evolution of these forest policies is critically reviewed. It is argued that India is perfectly positioned to benefit from climate change mitigation efforts, due to a rich, albeit chequered, history in forest management.

Property rights, institutions and choice of fuelwood source in rural Ethiopia

Journal Articles & Books
Décembre, 2013
Éthiopie

This study examines the relationship between property rights, defined by land tenure security and the strength of local-level institutions, and household's preferences for fuelwood source. A multinomial regression model applied to survey data collected in rural Ethiopia underpins the analysis. Results from the discrete choice model indicate that active local-level institutions increase household dependency on open access forests, while land security reduces open access forest dependence.

On the road through the Bolivian Amazon: A multi-level land governance analysis of deforestation

Journal Articles & Books
Décembre, 2013
Bolivie

Previous studies have shown that collective property rights offer higher flexibility than individual property and improve sustainable community-based forest management. Our case study, carried out in the Beni department of Bolivia, does not contradict this assertion, but shows that collective rights have been granted in areas where ecological contexts and market facilities were less favourable to intensive land use. Previous experiences suggest investigating political processes in order to understand the criteria according to which access rights were distributed.

Assessment of forest disturbances by selective logging and forest fires in the Brazilian Amazon using Landsat data

Journal Articles & Books
Décembre, 2013

The rapid environmental changes occurring in the Brazilian Amazon due to widespread deforestation have attracted the attention of the scientific community for several decades. A topic of particular interest involves the assessment of the combined impacts of selective logging and forest fires. Forest disturbances by selective logging and forest fires may vary in scale, from local to global changes, mostly related to the increase of carbon dioxide released into the atmosphere.

Land institutions and supply chain configurations as determinants of soybean planted area and yields in Brazil

Journal Articles & Books
Décembre, 2013
Brésil

Soybean production has become a significant force for economic development in Brazil. It has also received considerable attention from environmental and social non-governmental organizations as a driver of deforestation and land consolidation. While many researchers have examined the impacts of soybean production on human and environmental landscapes, there has been little investigation into the economic and institutional context of Brazilian soybean production or the relationship between soy yields and planted area.

Comparison and analysis of agricultural and forest land changes in typical agricultural regions of northern mid-latitudes

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

The northeastern China, the United States, and the western Europe are important agricultural regions both on the global and regional scales. The western Europe has a longer history of agricultural land development than the eastern United States. These two regions have changed from the deforestation and reclamation phase in the past to the current land abandonment and reforestation phase. Compared with the two regions, large-scale land exploitation has only been practiced in the northeastern China during the last century.