Physiology of A. nilotica and C. africana intercropped in Melkassa semi-arid region of Ethiopia

Enhancing crop productivity requires climate-smart agroforestry systems to reduce adverse weather conditions and to enhance soil nutrient fertility in the semi-arid regions. This research was carried out at the Melkassa long-term experimental site between July 2018 and February 2019. The main objective of this research was to investigate tree water use, gas exchange, and nutrient content of A. nilotica and C. africana litter to evaluate the impact on the accompanying crops. Three trees were selected from each tree species. There was a temporal variation in carbon dioxide assimilation rate between C. africana and A. nilotica. A strong correlation coefficient was observed between WUE and the carbon dioxide assimilation rate of both trees compared to other physiological measurements. Leaf water potential and sap volume of both trees declined during the dry periods. Both leaf nitrogen and phosphorous contents recorded in A. nilotica were higher compared to C. africana. However, the SPAD value measured in C. africana was significantly higher during the onset of the main rainy seasons compared to A. nilotica. The differences in WUE and carbon flux of trees are mainly dependent on environmental factors. A. nilotica demonstrated higher nitrogen contribution and more stable WUE under drought conditions, suggesting its suitability for semi-arid intercropping systems. Thus, integration of trees known for high water use efficiency and quality nutrient deposition has paramount importance to enhance crop productivity in semi-arid environments where soil fertility is slow and intermittent rainfall is most prevalent.

The critical role of forests and trees in regulating the water cycle

Forests and trees – on or near agricultural land but also hundreds of kilometres away – can provide a range of water-related ecosystem services critical for agriculture, including freshwater supply, regulation of water flows, local climates and temperatures, as well as water damage mitigation, and water purification.

The water-related ecosystem services from trees and forests to agriculture are insufficiently monitored and valued, which means that they are under recognized in the agricultural sector and agriculture-related policies, resulting in economic losses for farmers and countries.

An integrated approach to landscape and natural resource management – forests and water – at various scales is essential for ensuring that the benefits of forests and trees for agriculture are optimized. Decision-support systems that consider trade-offs and synergies among the forest ecosystem services provided are emerging as key tools to facilitate this.

Strengthening Rural Capacity in Kapuas Hulu District Towards Enhancing The Climate-Smart Agriculture Technologies and Practices (ECSAP) of Smallholder Commodity Farmers

The Enhancing Climate-Smart Agriculture Practices (ECSAP) project in Kapuas Hulu, West Kalimantan, strengthens the capacity of smallholder farmers to adopt climate-smart agroforestry and sustainable farming systems. The project promotes soil and water conservation, diversified crops, and improved farm management to increase productivity while protecting forest and landscape health. Through training, demonstration plots, and knowledge exchange, farmers and extension workers enhance their technical and business skills. In Pondok Mensiau and surrounding villages, ECSAP supports community-based learning and local innovations that improve livelihoods and resilience. These efforts contribute to stronger rural institutions, sustainable incomes, and more climate-resilient agricultural landscapes.

Towards low-emission food systems in Guinea: A country profile

Food systems—spanning agriculture, land use and land-use change and forestry (LULUCF), energy, industrial processes and product use (IPPU), and waste—account for about one third of global anthropogenic greenhouse gas emissions, yet they remain an often underreported component of the climate challenge. This country profile on Guinea is part of a broader series that applies a food-system lens to national emissions by combining international datasets with official country reporting. It provides an integrated overview of land use, forests and agriculture, food security and diets, and food system emissions in Guinea, where agriculture, forestry, fisheries, and food processing and distribution are central to livelihoods, and where waste management is an increasingly important urban activity. Drawing on FAOSTAT data and Guinea’s 2024 Biennial Update Report, the profile compares international and national estimates to identify the main sources of food system emissions and areas of convergence between datasets. The analysis shows that Guinea’s food system emissions are dominated by farm-gate sources—particularly livestock methane, rice cultivation, and manure-related emissions—followed by land-use change driven largely by shifting cultivation and agricultural expansion, while emissions beyond the farm gate remain smaller but are increasing in urban areas due to waste disposal and energy use. The profile situates these emissions within a context of rapid population growth, persistent poverty, strong reliance on smallholder rainfed agriculture, and diets heavily dependent on rice and starchy staples, with low overall protein intake. It identifies a set of no-regret mitigation priorities that combine emissions reduction with food security and development objectives, including improved livestock productivity, methane-smart rice cultivation and loss reduction, forest regeneration and frontier control, and urban waste management solutions. By making food system emissions more visible and policy-relevant, this publication aims to support policymakers, researchers, and development partners in identifying climate actions aligned with Guinea’s development priorities and future climate commitments.

Opportunities for a low-emission transformation of African food systems

Food systems – spanning agriculture, land use, land use change and forestry (LULUCF), energy, industrial processes and product use (IPPU), and waste – account for about one-third of global anthropogenic greenhouse gas emissions, yet they remain difficult to identify in national reporting because they are dispersed across UNFCCC sectors. This working paper provides a continent-wide overview of food security and diets, economy-wide emissions, and food system emissions in Africa, and identifies no-regret priorities for mitigation action that support food security and sustainable development. It combines FAOSTAT agrifood system emissions with national inventory estimates submitted to the UNFCCC as Common Reporting Tables, analysed through the updated FSE-CRT model, which aligns national sectoral reporting with food-system boundaries while enabling cross-country comparability. The analysis situates mitigation opportunities within Africa’s structural context of rapid demographic growth, persistent poverty and undernutrition, and fast urbanization, while recognizing that the continent has the world’s lowest per-capita emissions and therefore requires context-appropriate mitigation pathways. Across datasets, agriculture and waste emerge as priority sectors for mitigation when excluding LULUCF, with livestock management (enteric fermentation and manure) identified as a leading farm-gate source and unmanaged organic waste as a major urban emissions driver; by contrast, energy- and industry-related food emissions are smaller and often underreported in national inventories. The paper highlights quick-win options—such as improved livestock management, better nutrient-use efficiency, reduced food losses, and enhanced organic waste management—alongside second-tier priorities requiring longer-term investment, including sustainable land-use planning and forest protection, climate-smart intensification, low-carbon food-system infrastructure, and strengthened national GHG inventories to improve targeting and access to climate finance.

Towards low-emission food systems in Cameroon: A country profile

Food systems—spanning agriculture, land use and land-use change and forestry (LULUCF), energy, industrial processes and product use (IPPU), and waste—account for about one third of global anthropogenic greenhouse gas emissions, yet they remain an often underreported component of the climate challenge. This country profile on Cameroon is part of a broader series that applies a food-system lens to national emissions by combining international datasets with official country reporting. It provides an integrated overview of land use, forests and agriculture, food security and diets, and food system emissions in Cameroon, a country characterized by exceptional biophysical diversity, rapid demographic growth, and persistent development challenges. Drawing on FAOSTAT data and Cameroon’s 2024 Biennial Update Report, the profile compares international and national estimates to identify the main sources of food system emissions and areas of convergence between datasets. The analysis shows that food system emissions in Cameroon are dominated by land-use change and forest fires, followed by livestock management—particularly enteric fermentation and manure—and, to a lesser extent, waste management and post-harvest losses. While methodological gaps and data limitations remain, especially for disaggregated supply-chain emissions, available evidence already provides clear signals on priority mitigation opportunities that are compatible with the country’s financial, technical, and institutional constraints. The profile identifies a set of no-regret mitigation pathways that combine emissions reduction with food security and development objectives, including zero-deforestation agricultural development, improved fire management, more efficient livestock systems, and reductions in starchy root-crop losses through improved storage, processing, and value-chain infrastructure. By making food system emissions more visible and policy-relevant, this publication aims to support policymakers, researchers, and development partners in identifying climate actions that align with Cameroon’s Nationally Determined Contribution and emerging international market requirements.

Promoting Climate-Smart Agriculture (CSA) through Strengthening the Capacity of Smallholder Farmers: Lessons from Kapuas Hulu District, West Kalimantan

Kapuas Hulu District in West Kalimantan has abundant natural resource potential but faces growing sustainability challenges in the context of climate change, particularly for key plantation commodities such as cacao, rubber, coffee, and oil palm, which are generally cultivated in monoculture systems. These systems are highly vulnerable to market price fluctuations, pest and disease outbreaks, and climate variability. The promotion of climate-smart agriculture (CSA) through agroforestry is seen as a way to strengthen the economic and environmental resilience of smallholder farmers in responding to climate change impacts.
To build smallholders’ capacity to apply CSA practices, the Enhancing the Climate-Smart Agriculture Technologies and Practices of Smallholder Commodity Farmers (ECSAP) program implements a range of activities aimed at driving behavioural change using the ADKAR approach (Awareness, Desire, Knowledge, Ability, and Reinforcement). The program has supported the emergence of 24 Independent Extension Agents and Model Farmers who provide farmer-to-farmer extension to promote the adoption of CSA practices for the main plantation commodities in Kapuas Hulu.
This brief also presents a set of recommendations for relevant stakeholders at local and national levels to support smallholder capacity building and to encourage the wider and more sustained implementation of CSA.

Towards low-emission food systems in Côte d’Ivoire: A country profile

Food systems—spanning agriculture, land use and land-use change and forestry (LULUCF), energy, industry, and waste—account for about one third of global anthropogenic greenhouse gas emissions, yet they remain an often underreported component of the climate challenge. This country profile on Côte d’Ivoire is part of a series of national analyses that apply a food-system lens to emissions by comparing FAOSTAT estimates with official national data from the country’s Biennial Transparency Report and Nationally Determined Contribution. It provides an integrated overview of land use, forests and agriculture, food security and diets, and food system emissions in Côte d’Ivoire, a country where rapid population growth, cocoa-driven deforestation, and rising urban demand interact with significant mitigation opportunities. The profile identifies a set of no-regret priorities for mitigation action that can reduce emissions while supporting food security and sustainable development, including forest-positive cocoa systems, improved livestock productivity, conservation of wetlands and organic soils, climate-smart rice cultivation, low-emission aquaculture and fisheries, and modern waste management. By making food system emissions more visible and policy-relevant, this publication aims to support national and international stakeholders in identifying mitigation pathways that deliver climate, food security, and development benefits in Côte d’Ivoire.

A Pathway to a Forest-Positive Bioeconomy in Indonesia: Harnessing Degraded Lands for Food and Energy Security

Indonesia stands at a critical juncture, navigating the trilemma of rapidly increasing demands for food and energy while concurrently pursuing ambitious climate change mitigation and forest conservation targets. The government’s recent policy focus on utilizing millions of hectares of state forest land for food and bioenergy production presents both a monumental opportunity and a significant ecological risk. This perspective argues that Indonesia’s national security goals can be ― and must be ― achieved by redirecting development efforts toward the nation’s vast degraded, marginal and underutilized lands rather than risking further natural forest conversion. We outline a clear, science-based pathway centered on restoration-oriented, climate-smart agroforestry (CSAF) and bioenergy systems. These integrated systems, utilizing locally adapted, multi-species combinations of food crops, high-value bioenergy trees and livestock, offer a scalable model to enhance land productivity, secure rural livelihoods and achieve net carbon sequestration. This approach decouples economic development from deforestation, serving as the essential foundation for building a truly forest-positive bioeconomy that ensures resilience, prosperity and ecological integrity for Indonesia.

Tree diversity and soil fertility interactions drive carbon storage in degraded cocoa landscapes of Côte d’Ivoire

Introduction: Understanding the ecological functioning of degraded cocoa landscapes is critical for restoring productivity and ecosystem services in West Africa. This study investigated how climate, geography, and land-use systems interact to shape tree diversity, soil fertility, and aboveground carbon (AGC) stocks across six cocoa-producing sites in Côte d’Ivoire.

Methods: Field inventories and soil sampling to 50 cm depth were conducted across gradients of climate (1,150–1,650 mm rainfall) and land-use systems (fallow, cocoa agroforestry, and monocropping). Mixed effects ANOVA, regression, and redundancy analyses were applied to test three hypotheses linking environmental gradients, tree diversity, and soil–carbon relationships.

Results: Land-use system had the strongest effect on tree diversity (P< 0.0001), with fallows supporting significantly higher richness (7.2 ± 0.51) and Shannon diversity (1.7 ± 0.05) than agroforestry or monocrop systems. Climate and site nested within climate also significantly influenced species abundance and evenness. Soil fertility indicators were primarily controlled by climate and geographic site, with significant effects on pH, exchangeable bases, and structural stability. Interactions between climate and land-use significantly affected soil pH, organic carbon, calcium, and cation exchange capacity. Stepwise regression identified aluminum, potassium, boron, and magnesium as key soil predictors of AGC (R² = 0.14; P< 0.0001), while species richness was the only diversity metric significantly associated with AGC (R² = 0.12; P< 0.0001).

Discussion: These results highlight the dominant role of species richness over evenness and abundance in sustaining soil fertility and carbon storage, emphasizing biodiversity conservation as a cornerstone of cocoa landscape restoration.

Resilient Landscapes is powered by CIFOR-ICRAF. Our mission is to connect private and public actors in co-beneficial landscapes; provide evidence-based business cases for nature-based solutions and green economy investments; leverage and de-risk performance-driven investments with combined financial, social and environmental returns.

Learn more about Resilient Landscapes Luxembourg

2026 All rights reserved    Privacy notice