The review, conducted by Rusha Begna Wakweya of Ethiopian Forestry Development’s Jimma Center, sifted through 291 records drawn from Scopus, Web of Science, Google Scholar, the Directory of Open Access Journals, and gray literature from the FAO, UNDP, World Bank, and Ethiopian government sources. Following PRISMA 2020 reporting standards and a PICOS-based eligibility framework, the analysis narrowed the pool to 21 studies published between the initiative’s launch and 2025 that explicitly linked the Green Legacy to measurable socio-economic outcomes. Studies focused purely on biophysical indicators such as seedling counts or carbon sequestration, without connecting them to human welfare, were excluded. The result is the first systematic synthesis to map the initiative’s outcomes onto specific Sustainable Development Goal targets, and it reveals four principal pathways through which tree planting has touched human lives.

The most frequently documented pathway is livelihood diversification and income generation. Official reports cited in the reviewed literature indicate that more than 767,000 jobs have been created through Green Legacy activities, alongside the establishment of over 120,000 nurseries across the country. These nurseries, often run as decentralized community enterprises, have become small economic engines in their own right, with women’s and youth groups participating in seedling production, tool sales, and related services. The income effects reported in individual studies are striking: households receiving Green Legacy avocado seedlings in North Mecha Woreda earned an average of 18,750 Birr annually, compared with just 4,500 Birr among nonparticipating households, while a separate study found that households receiving fruit-tree seedlings reported 22 to 35 percent higher annual cash income than their counterparts.

But the employment structure tells a more complicated story. Roughly 65 percent of the jobs created are temporary or seasonal, lasting less than six months, and permanent formal employment accounts for less than 5 percent of opportunities. The review frames this as the initiative’s central unresolved tension: a program celebrated as a route to sustainable livelihoods currently functions primarily as a short-term safety net, providing meaningful income supplementation during agricultural lean seasons but falling short of the sustained poverty reduction, decent work, and asset accumulation demanded by SDG 1. Without deliberate policy shifts to convert seasonal planting work into permanent, skills-based green jobs, the review concludes, the initiative’s contribution to poverty alleviation remains an aspiration rather than an empirically demonstrated outcome.

The second pathway runs through community empowerment and social capital. Large-scale public participation in planting campaigns has strengthened collective action and deepened community engagement in environmental management, according to the qualitative studies reviewed. Women’s participation in nursery management was particularly associated with increased economic agency and a greater voice in community decision-making, while collective restoration work correlated with higher levels of trust, reciprocity, and cooperation. Participation also bred environmental awareness, with communities involved in restoration developing a stronger appreciation of tree resources and landscape protection. These findings suggest that the initiative’s social effects extend well beyond the physical act of planting trees, reshaping how communities govern and value their natural surroundings.

Food security and nutrition form the third pathway, and arguably the most tangible one for rural households. The distribution of fruit and multipurpose tree seedlings, including avocado, mango, papaya, and Moringa, has increased the availability of nutrient-rich foods at the household level, contributing to dietary diversification. Agroforestry systems built around nitrogen-fixing species such as Sesbania and Faidherbia have been linked to improved soil organic matter, better water retention, and higher agricultural productivity, supporting staple crop production and reducing risk. Income from fruit and other nontimber forest products allows households to purchase food and agricultural inputs, while diversified tree-based production provides a buffer during periods of agricultural stress. The Ethiopian Ministry of Agriculture has formally linked the fruit-tree component to national food availability and nutrition, a contribution recognized by the United Nations.

The fourth pathway concerns human health and well-being. Urban tree planting has been associated with improved air quality through the removal of particulate matter and gaseous pollutants, while the expansion of parks and green spaces has been linked to recreation, stress reduction, and psychological benefits. Participation in collective environmental activities also appears to foster social connectedness and a sense of shared purpose. Taken together, the review argues, the health dimensions of the initiative extend beyond environmental improvement into social and psychological territory that conventional evaluations of afforestation programs rarely capture.

The ecological evidence underpinning these pathways is dramatic, at least on paper. Geospatial analyses using Landsat and Sentinel-2 imagery processed through Google Earth Engine document a 156.48 percent increase in forestland in the Abay Basin between 2018 and 2025, alongside a 202.04 percent increase in grassland and a 94.29 percent decrease in bare land. Maximum land surface temperatures in the basin fell by 5.8 degrees Celsius and minimum temperatures by 1.3 degrees, while estimated annual soil erosion dropped from 1.9 billion tonnes to 208 million tonnes. National forest cover has risen from 15.5 percent to 23.6 percent, and NDVI analysis in the Guba-lafto District shows high-density vegetation expanding from 0.98 percent to 9.38 percent of total land area between 2013 and 2024. Compared with the African Great Green Wall, which aims to restore 100 million hectares across 11 countries by 2030 with modest progress so far and heavy reliance on donor funding, Ethiopia’s domestically financed, state-driven campaign stands out for its speed and scale.

Yet the review is unsparing about the gaps that separate spectacle from verified impact. Seedling survival averages just 76.50 percent across districts in the available data, and the only district-level study reports an average survival rate of 39.80 percent, ranging from 7.59 to 76.50 percent, a figure that cannot be generalized nationally. More than 70 percent of woredas lack socio-economic data altogether, and survival tracking beyond six months is largely absent, making it impossible to distinguish localized success from widespread failure. Carbon sequestration estimates assume uniform survival across all planting sites, a methodological flaw the review warns could inflate reported climate contributions. Heavy reliance on fast-growing exotic species for quick ground cover may also come at the expense of native species with higher biodiversity value and better long-term economic uses, while inadequate post-planting care, water scarcity, grazing pressure, and species-site mismatches threaten to waste resources and erode public trust.

The way forward, the review argues, requires integrated policies that strengthen rural markets, ensure inclusive participation of women and youth, and above all establish long-term monitoring of both benefits and limitations. Priority measures include standardized survival monitoring extending to five and ten years, control sites to estimate additionality, household panels tracking income trajectories across planting seasons, and market-level data on nontimber forest product value chains, none of which currently exist in the peer-reviewed literature. The December 2024 parliamentary proclamation establishing a Green Legacy Special Fund, allocating 0.5 to 1 percent of federal annual revenue to restoration, provides an institutional foundation, and Ethiopia’s 2025 Voluntary National Review has formally integrated the initiative into its SDG reporting. Whether the Green Legacy ultimately proves to be a transformative engine for sustainable development or a short-lived environmental campaign will depend less on how many billions of seedlings go into the ground, and more on whether the country can finally measure what grows out of them.

Subject of Research: Socio-economic outcomes of Ethiopia's Green Legacy Initiative afforestation program and its contribution to the UN Sustainable Development Goals

Article Title: Socio-economic contributions of the Ethiopian Green Legacy Initiative as a pathway to sustainable development: Systematic Review

Article References: Wakweya, R. B. (2026). Socio-economic contributions of the Ethiopian Green Legacy Initiative as a pathway to sustainable development: Systematic Review. PLOS Sustainability and Transformation, 5(10), e0000299. https://doi.org/10.1371/journal.pstr.0000299

Image Credits: AI Generated

DOI: 10.1371/journal.pstr.0000299

Keywords: Ethiopia, Green Legacy Initiative, afforestation, reforestation, sustainable development, SDGs, livelihoods, food security, community empowerment, seedling survival, systematic review, agroforestry

The review applied a structured PRISMA-based protocol, screening 302 records down to 38 studies published between 2000 and 2024, drawn from Scopus, Web of Science, and government databases. Twelve studies were quantitative, fourteen qualitative, and twelve used mixed methods. The authors then organized the evidence through a resource and behavioral economics lens, treating the initiative not simply as an ecological project but as an attempt to correct a market failure. Climate regulation, watershed protection, biodiversity conservation, and erosion control are classic public goods, non-rivalrous and non-excludable, which means private actors systematically underinvest in them. The state, in this framing, is not being romantic about trees; it is supplying something the market will not.

The ecological evidence is genuinely encouraging in places. A quasi-experimental study in the Lake Hawassa watershed found statistically significant improvements in hydrological regulation of 87 percent, soil stability of 100 percent, and plant diversity of 83.3 percent in plots covered by the program compared with similar untreated areas. In the southern regions of SNNPR and Oromia, GLI-linked agroforestry has been associated with a 20 percent increase in banana production, attributed to improved soil moisture, nutrient cycling, and pollination services. In Addis Ababa, urban forest coverage rose from 2.8 percent in 2019 to 20 percent in 2023, transforming the capital’s biodiversity and air quality profile.

Yet the review is blunt about the fragility beneath those headlines. Seedling survival rates are poorly documented, post-planting care is inconsistent, and much of the reported progress rests on administrative planting counts rather than independently verified ecological outcomes. Earlier foundational research estimated that Ethiopia loses 1.5 to 2 billion tons of topsoil annually, and roughly 40 percent of the national landscape is degraded, so the stakes are enormous. But as the authors note, planting targets and survival are not the same thing, and without credible survival and growth data, any cost-benefit analysis remains largely conjectural.

The economic analysis exposes structural trade-offs that political rhetoric tends to obscure. Households bear immediate costs, diverting labor and sacrificing grazing or crop land, while most benefits, from carbon storage to flood regulation, accrue slowly and to society at large. This is the classic intertemporal dilemma of restoration economics: future public gains can justify present private sacrifices, but only if participants are compensated or sufficiently incentivized. Where planting displaced food crops without adequate awareness or compensation, resistance was stronger and outcomes weaker.

Equity is the sharpest edge of the analysis. The initiative has created roughly 767,000 jobs through more than 120,000 nurseries, disproportionately benefiting women and young people, and it has drawn schools, religious institutions, and civil society into a shared national project. But the review finds the distribution of costs and benefits remains uneven, particularly for land-poor farmers, pastoralists, and women seeking genuine decision-making power rather than symbolic participation. Elite capture, tenure insecurity, and land-use competition for grazing and agriculture all threaten to convert a restoration program into a regressive one.

Species selection emerges as a recurring flashpoint. The heavy reliance on fast-growing eucalyptus, prized for its economic returns, carries documented ecological risks including groundwater depletion and threats to native biodiversity. Researchers cited in the review warn that if the wrong trees are planted in the wrong environments, the initiative could do more harm than good. Comparative evidence from other large-scale programs, including nitrogen-fixing agroforestry systems that capture 30 to 60 percent more soil carbon than monocultures, reinforces the case for biodiversity-aware, ecologically zoned planting.

Behavioral economics explains why the program has achieved scale at all. Participation has been driven less by financial incentives than by social norms, peer effects, moral framing, and government-led nudges, from mass planting days to a world record of more than 353 million trees planted in a single day in 2019. Survey work found 76 percent of farmers in SNNPR viewed the initiative favorably, and over 60 percent of smallholders in Amhara were willing to contribute labor and land when extension services and inputs were provided. But the same behavioral machinery does not guarantee maintenance, and the review flags post-planting neglect as the initiative’s most persistent weakness.

The authors also situate Ethiopia’s experiment in a global context, comparing it with China’s Great Green Wall, Pakistan’s Billion Tree Tsunami, and India’s afforestation programs. Across all of these efforts, the same failure modes recur: low seedling survival, poor species-site matching, and top-down execution disconnected from local stewardship. What distinguishes Ethiopia is its extraordinary grassroots mobilization and the deliberate integration of socioeconomic development with restoration goals, though the review cautions that this advantage erodes without sustained institutional follow-through.

The prescription is a shift from quantity to quality: transparent monitoring of survival and carbon outcomes, secure land tenure, incentive alignment through payment-for-ecosystem-services or agroforestry income, ecologically appropriate species selection, and participatory governance that gives women, youth, and marginalized farmers real stakes. Ethiopia’s Green Legacy Initiative, the review concludes, has the potential to be both economically efficient and socially equitable, but only if it stops counting trees and starts counting forests. For a country whose 2030 pledge includes increasing forest cover from 15.7 percent to 30 percent and delivering 130 million tons of the national emissions reduction from forestry alone, that shift may determine whether the Green Legacy becomes a restoration landmark or a cautionary tale.

Subject of Research: Environmental and socioeconomic outcomes of Ethiopia's large-scale tree-planting and ecosystem restoration program

Article Title: Synthesis of environmental and socioeconomic outcomes of Ethiopia’s Green Legacy Initiative for sustainability

Article References: Gebretsadik, T., & Uaiene, R. (2026). Synthesis of environmental and socioeconomic outcomes of Ethiopia’s Green Legacy Initiative for sustainability. Discover Conservation, 3(1), Article 15. https://doi.org/10.1007/s44353-026-00085-z

Image Credits: AI Generated

DOI: 10.1007/s44353-026-00085-z

Keywords: Ethiopia, Green Legacy Initiative, reforestation, ecosystem restoration, seedling survival, carbon sequestration, public goods, behavioral economics, land degradation, agroforestry, climate policy, social equity