Reforestation vs Afforestation: What's the Difference?

Reforestation replants trees where a forest recently stood but was lost to logging, fire or clearing, whereas afforestation establishes forest on land that has had no forest in recent history. Both raise tree cover, yet they carry very different ecological stakes, and the right approach depends on what the land was before a single seedling goes in the ground.

What each term actually means

• Reforestation. Re-establishing forest on land that carried forest until recently — restoring a degraded, burned or cleared site back towards the ecosystem it just lost. The reference point is known and recent.
• Afforestation. Planting forest on ground that has not been woodland in recent history, such as former pasture, open grassland, moorland or scrub. Here a new ecosystem is created, not restored.
• The timescale test. The practical line is whether forest existed on that spot within living memory; if it did, replanting is reforestation, if it did not, it is afforestation.
• Not just "greening". Both aim at functioning forest, not rows of a single fast-growing species — structure and native diversity matter more than raw tree count.
• Why the label matters. It signals ecological risk, not only method: more trees is not automatically more nature, and the wrong trees in the wrong place can set an ecosystem back.

The benefits — and the real risks

Reforestation is usually the safer bet. It restores a habitat that local wildlife already depends on, rebuilds soil structure and water cycles, and reconnects fragmented patches of existing forest, so the ecological payoff is relatively predictable. Afforestation can add real value on genuinely degraded land that will not recover on its own — but planted in the wrong place it does harm. Dense tree cover on ancient grasslands, peatlands or wetlands can crowd out specialist plants and animals that need open habitat, and can even release carbon those soils had stored for centuries. You can see how we screen and document each site on our planting projects page, where location and land history feed into the decision.

Which stores carbon more reliably?

Context decides, but reforestation of a recently lost forest tends to lock away carbon more dependably. The climate, soils and native species are already suited to woodland, so the trees are likelier to survive to maturity and the existing soil carbon stays undisturbed. Afforestation can sequester carbon as well, yet only when the planting does not damage carbon-rich ground beneath it — peatland drained and ploughed for trees can emit far more CO₂ than the young forest will ever capture, turning a climate project into a net loss for years. Because these numbers hinge on assumptions, we publish ours openly; you can read exactly how we estimate tree CO₂ rather than trusting a single headline figure.

How Evertreen chooses and tracks planting

We focus on native-species, community-based planting on sites where trees genuinely belong, then geolocate every project so you can follow it with GPS coordinates and field photos instead of a vague promise that something, somewhere, was planted. Each of the trees you fund from £1.5 is tied to a real, traceable location and, wherever possible, to the restoration of a forest that was recently lost — keeping the emphasis on the right species in the right place, which is the single factor that most decides whether planting helps or harms.

Frequently asked questions

Is reforestation always better than afforestation? Not always, but it is usually the lower-risk option because it restores an ecosystem that recently existed. Afforestation is beneficial on genuinely degraded, non-natural land and harmful on intact grasslands, moorland or peat.

Can afforestation damage the environment? Yes. Planting trees on natural grasslands, peatlands or wetlands can reduce biodiversity and release long-stored soil carbon, sometimes outweighing the carbon the new trees absorb over decades.

Which removes more CO2 from the atmosphere? It depends on the site. Reforestation of recently lost forest is generally more reliable, while afforestation only delivers a net gain when it avoids disturbing carbon-rich soils.