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AbstractPeatlands cover only 3–4% of the Earth’s surface, but they store nearly 30% of global soil carbon stock. This significant carbon store is under threat as peatlands continue to be degraded at alarming rates around the world. It has prompted countries worldwide to establish regulations to conserve and reduce emissions from this carbon rich ecosystem. For example, the EU has implemented new rules that mandate sustainable management of peatlands, critical to reaching the goal of carbon neutrality by 2050. However, a lack of information on the extent and condition of peatlands has hindered the development of national policies and restoration efforts. This paper reviews the current state of knowledge on mapping and monitoring peatlands from field sites to the globe and identifies areas where further research is needed. It presents an overview of the different methodologies used to map peatlands in nine countries, which vary in definition of peat soil and peatland, mapping coverage, and mapping detail. Whereas mapping peatlands across the world with only one approach is hardly possible, the paper highlights the need for more consistent approaches within regions having comparable peatland types and climates to inform their protection and urgent restoration. The review further summarises various approaches used for monitoring peatland conditions and functions. These include monitoring at the plot scale for degree of humification and stoichiometric ratio, and proximal sensing such as gamma radiometrics and electromagnetic induction at the field to landscape scale for mapping peat thickness and identifying hotspots for greenhouse gas (GHG) emissions. Remote sensing techniques with passive and active sensors at regional to national scale can help in monitoring subsidence rate, water table, peat moisture, landslides, and GHG emissions. Although the use of water table depth as a proxy for interannual GHG emissions from peatlands has been well established, there is no single remote sensing method or data product yet that has been verified beyond local or regional scales. Broader land-use change and fire monitoring at a global scale may further assist national GHG inventory reporting. Monitoring of peatland conditions to evaluate the success of individual restoration schemes still requires field work to assess local proxies combined with remote sensing and modeling. Long-term monitoring is necessary to draw valid conclusions on revegetation outcomes and associated GHG emissions in rewetted peatlands, as their dynamics are not fully understood at the site level. Monitoring vegetation development and hydrology of restored peatlands is needed as a proxy to assess the return of water and changes in nutrient cycling and biodiversity.

This case study of the Mediterranean extra virgin olive oil value chain aims to contribute empirical evidence to incorporating the agrobiodiversity concept within mechanisms for value enhancement of origin products, within sustainable local value chains, via building a community around products. The tools and mechanisms for market competitiveness and product differentiation of quality origin products are illustrated, contributing to food systems’ transition towards sustainable development. Our analysis provides three stages of community building around the sustainable, local product: (1) The product positioning phase: all the activities chosen by the producer for the agricultural production, processing, and marketing for value enhancement; all the activities performed before the consumer encounters the product. (2) The consumer attraction phase: the moment when the consumer becomes familiarized with the product; the phase where the institutional capital plays an important role, as often the producers enter markets supported by different groups, networks, or institutions with which they partner. (3) Communities of value co-creation: the final stage of consumer engagement with the product. Communities of value connecting individuals through similar values of sustainability, agrobiodiversity, defending and respecting the environment, and tasty, nutritious food, are substantial components for the transition towards more sustainable origin food systems.

Changes in land-use have been observed in banana-based systems in the African Great Lakes region affected by Xanthomonas wilt disease (XW) of banana. Through focus group discussions (FGDs) and the 4-cell method (to map the area under production and the number of households involved), changes in land-use were assessed in 13 XW-affected landscapes/villages along a 230 km transect from Masisi (where XW arrived in 2001) to Bukavu (XW arrived around 2014) in the Eastern Democratic Republic of Congo. Farmers’ perceptions on the sustainability of new land uses were also documented. Soil nutrient content and erosion levels were measured for five major land-use options/trajectories on 147 fields across 55 farms in three landscapes along the transect. From banana being ranked the most important crop (92% of landscapes) before XW outbreaks, its importance had declined, with it grown on smaller farms by most households in 36% of the landscapes, while in 64% of cases by few households on smaller plots. Farmers uprooted entire banana mats or fields, expanding land under other crops. Species richness did not change at landscape level, although 21 crops were introduced at farm level. Banana is, however, still perceived as more sustainable due to its multi-functional roles. Soils under banana had better chemical attributes, while high erosion levels (Mg ha−1 year−1) occurred under cassava (1.7–148.9) compared with banana (0.3–10.7) and trees (0.3–5.9). The shifts from banana could thus affect supply of key services and sustainability of the farming systems. This study offers a good basis for interventions in XW-affected landscapes.

Public concerns about the environmental credentials of timber products have led to the introduction of procurement policies that add criteria other than price into the decision-making process. This demand-driven initiative alongside the importance of European markets for timber exports have prompted Cameroon to sign a Forest Law Enforcement, Governance and Trade Voluntary Partnership Agreement (FLEGT/VPA) with the European Union. This paper reviews the impacts of this policy. Firstly, the institutional arrangement for timber production is presented with special focus on various legal forms of forest exploitation. Secondly, the estimated costs for the required development and control of various types of forest management are presented. Finally the impacts of the FLEGT/VPA on forest governance, forest management, timber trade and socio-economic and development issues is explored. The positive impact of the agreement will be especially felt by industrial forest concession holders that harvest timber products for exports to international markets, but it will hardly be the case of community forests. However, the implementation of the agreement will engender huge financial costs for forest managers and national governments. Also, the livelihoods of small-scale loggers (who are the main suppliers of national markets) may be adversely affected by the procurement policies.

Agroecology promises a third way between common global agriculture tradeoffs such as food production and nature conservation, environmental sustainability and ecosystem services. However, most successful examples of mainstreaming agroecology come from smallholder, family agriculture, that represents only about 30% of the world agricultural area. Mainstreaming agroecology among large scale farmers is urgently needed, but it requires addressing specific questions in research, technology and policy development to support sustainable transitions. Here we take stock of the existing knowledge on some key aspects necessary to support agroecological transitions in large scale farming, considering two contrasting starting points: highly subsidized and heavily taxed agricultural contexts, represented here by the examples of Western Europe and temperate South America. We summarize existing knowledge and gaps around service crops, arthropod-mediated functions, landscape and watershed regulation, graze-based livestock, nature-inclusive landscapes, and policy mechanisms to support transitions. We propose a research agenda for agroecology in large scale farming organized in five domains: (i) Breeding for diversity, (ii) Scalable complexity, (iii) Managing cycles beyond fields and farms, (iv) Sharing the cultivated landscape, and (v) Co-innovation with farmers, value chains and policy makers. Agroecology may result in a renewed impetus in large scale farming, to attract the youth, foster clean technological innovation, and to promote a new generation of large-scale farmers that take pride in contributing to feeding the world while serving the planet and its people.

Continued overexploitation of natural resources and the associated impacts of climate change threaten the sustainability and biodiversity of our global social-ecological systems. ‘Integrated landscape approaches’ are governance strategies that attempt to reconcile multiple and conflicting land-use claims to harmonize the needs of people and the environment and establish more sustainable and equitable multi-functional landscapes. Such approaches have gained prominence in recent conservation and development discourse, but critics have suggested a need for evidence of effectiveness to bridge knowledge-implementation gaps. Here we review the recent literature to provide a brief update on developments in the science and practice of landscape approaches, primarily in the tropics. We show that despite considerable enthusiasm for landscape approaches, the evidence base within the scientific literature remains poorly developed. Future application of landscape approaches requires concerted transdisciplinary actions that connect scales of governance to address the complex political economies in contested tropical landscapes. We highlight important challenges and opportunities for landscape approach implementation, particularly related to bridging sectorial and disciplinary divides, engaging the private sector, and monitoring landscape performance.