Does Iceland Have Temperate Forests? No—Here's Why
No. Iceland **lacks a temperate forest biome**. Its high latitude (63°–66° N), cool maritime climate, volcanic soils, and history of deforestation prevent temperate forest development.
Climate Barrier
- Temperature: July avg 10–13°C (50–55°F) — **below the 10°C isotherm** for temperate forest tree growth.
- Growing season: <90 days (too short for deciduous hardwoods).
- Wind & precipitation: Persistent storms, 800–3,000 mm/yr.
Actual Vegetation Zones
| Biome / Type | Coverage | Key Species |
|---|
| Subarctic Tundra / Alpine | Highlands, N/coast | Mosses, lichens, dwarf willow, sedges |
| Wetlands / Mires | ~10% (extensive) | Sphagnum, cotton grass, bog rosemary |
| Grasslands / Heath | Lowlands, grazing | Fescue, bentgrass, heather, crowberry |
| Birch Woodland (Subarctic) | ~1.5% (remnants) | Betula pubescens (downy birch) — stunted, <10m |
| Plantations (Non-native) | ~2% (expanding) | Sitka spruce, Lodgepole pine, Siberian larch |
Historical Context
- Pre-settlement (874 CE): **25–40% birch woodland** (low stature).
- Norse clearance: Fire, grazing, timber, charcoal → **deforestation to ~1% by 1900**.
- Soil erosion (volcanic ash + wind/rain) = **irreversible loss** in many areas.
Reforestation Efforts
- Icelandic Forest Service (Skógræktin) since 1908.
- Goal: **12% forest cover by 2100** (climate mitigation, soil stabilization, timber).
- Species: Native birch + adapted non-natives (Sitka spruce, Lutz spruce).
- Challenges: Sheep grazing, volcanic ash, slow growth, funding.
Iceland's "forests" are **subarctic birch scrub** and **modern plantations**—not temperate deciduous/coniferous forests. The biome simply doesn't fit the climate envelope.
Wanderlust World