64 research outputs found

    Combining remote sensing and household level data for regional scale analysis of land cover change in the Brazilian Amazon

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    Land cover change in the Brazilian Amazon depends on the spatial variability of political, socioeconomic and biophysical factors, as well as on the land use history and its actors. A regional scale analysis was made in Rondônia State to identify possible differences in land cover change connected to spatial policies of land occupation, size and year of establishment of properties, accessibility measures and soil fertility. The analysis was made based on remote sensing data and household level data gathered with a questionnaire. Both types of analyses indicate that the highest level of total deforestation is found inside agrarian projects, especially in those established more than 20 years ago. Even though deforestation rates are similar inside and outside official settlements, inside agrarian projects forest depletion can exceed 50% at the property level within 10–14 years after establishment. The data indicate that both small-scale and medium to large-scale farmers contribute to deforestation processes in Rondônia State encouraged by spatial policies of land occupation, which provide better accessibility to forest fringes where soil fertility and forest resources are important determinants of location choic

    A small subset of protected areas are a highly significant source of carbon emissions

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    Protected areas (PAs) aim to protect multiple ecosystem services. However, not all are well protected. For the first time, using published carbon and forest loss maps, we estimate carbon emissions in large forest PAs in tropical countries (N = 2018). We found 36 ± 16 Pg C stored in PA trees, representing 14.5% of all tropical forest biomass carbon. However the PAs lost forest at a mean rate of 0.18% yr(−1) from 2000–2012. Lower protection status areas experienced higher forest losses (e.g. 0.39% yr(−1) in IUCN cat III), yet even highest status areas lost 0.13% yr(−1) (IUCN Cat I). Emissions were not evenly distributed: 80% of emissions derived from 8.3% of PAs (112 ± 49.5 Tg CO(2) yr(−1); n = 171). Unsurprisingly the largest emissions derived from PAs that started with the greatest total forest area; accounting for starting forest area and relating that to carbon lost using a linear model (r(2) = 0.41), we found 1.1% outlying PAs (residuals >2σ; N = 23), representing 1.3% of the total PA forest area, yet causing 27.3% of all PA emissions. These results suggest PAs have been a successful means of protecting biomass carbon, yet a subset causing a disproportionately high share of emissions should be an urgent priority for management interventions

    Improving diets with wild and cultivated biodiversity from across the landscape

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    Deforestation by land grabbers

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    Payment for ecosystem services in the Congo basin : filling the gap between law and sustainability for an optimal preservation of ecosystem services

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    The Democratic Republic of Congo (DRC) is involved in the implementation of an international Payment for Ecosystem Services (PES) (UNEP: Developing international payments for environmental services: a technical discussion (Background Paper), 2006) mechanism, namely “Reduced Emissions from Deforestation and forest Degradation in the developing countries and the conservation, sustainable forest management and the enhancement of forest carbon stocks in the developing countries” (REDD+). However, the laws of the DRC are insufficient to achieve a sustainable PES and REDD+ implementation. Based on indicators on land tenure security, classical conditions of contracts, 3E+ REDD+ criteria and measures on conservation and restoration, this chapter analyses the laws related to PES in force in the DRC in order to obtain a more sustainable preservation of ecosystem services. The chapter focuses on four ecosystem services: carbon sequestration and storage, biodiversity protection, watershed protection and landscape beauty. Several criteria have been applied to assess the potential of the DRC PES laws to promote a sustainable preservation of ecosystems and ecosystem services. A first set of well-known criteria are the 3 E+ REDD+ criteria, which entails that to achieve a successful REDD+ implementation, the REDD+ project should be effective, costly efficient, equitable and bring co-benefits. Effectiveness refers to the achievement of environmental goals. Cost efficiency means that the project should attempt to reach the environmental goals through reasonable financial means. Equity fits with the inclusive capacity of the project. Four co-benefits are distinguished, namely biodiversity conservation, governance, adaptation of climate change and improvement of social conditions. Secondly, this chapter refers to classical contract conditions from French and Belgian Civil Law inherited by Congolese Civil Law. These conditions are the consent of the parties, the capacity of parties, the existence of an object and the legal purpose. Thirdly, the chapter refers to the indicators on conservation and restoration measures and on land tenure security (property right titles and clear borders). The chapter demonstrates that there is a need to update or enforce the existing laws related to PES applied in the DRC in order to increase the preservation of ecosystem services. The chapter argues that the transformation of the existing laws would positively influence the implementation of SDG 13 and 15
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