Jordan Dryland Revived: 80% Biodiversity, 300% Yields
By Geoff Lawton
TL;DR: Arid Jordan farm transforms into a thriving ecosystem, showcasing regenerative agroforestry techniques for increased biodiversity, water conservation, and crop yields.
- Keyline design and swales conserve vast amounts of water.
- Nitrogen-fixing trees are crucial for soil fertility.
- Layered planting creates diverse and productive ecosystems.
- Poultry and bees significantly boost farm health.
- Significant increases in biodiversity and soil organic matter.
Why it matters: This case study demonstrates a successful, scalable model for transforming degraded drylands into highly productive and resilient agroecosystems, offering practical solutions for food security and environmental restoration.
Do this next: Start by mapping the contours of your land to identify keyline patterns for water harvesting.
Recommended for: Farmers, land managers, and permaculture enthusiasts in dryland regions seeking proven methods for ecological restoration and increased agricultural yields.
Geoff Lawton's 2025 Greening the Desert update from a 5ha Jordan site reports 80% biodiversity increase, 15m³ water savings per ha via keyline swales, and 300% yield jumps in olives/pomegranates. Step-by-step retrofit for arid self-sufficiency: survey contours with bunyip level, plow keylines (true level on contour), plant along them with nitrogen-fixers (acacias, tagasaste). Swales (1-2% grade) infiltrate 90% rainfall, raising water table 2m in 5 years. Layers: canopy (olives, carobs), understory (pomegranates, figs), groundcovers (cereal rye). Poultry/bee integration adds fertility/pollination. Metrics: soil organic matter from 0.5% to 3.5%, insect diversity tripled. Practical details: spacing (olives 7x7m), mulch 20cm deep from prunings, drip retrofits optional. Yields: Year 3 olives 5t/ha vs. baseline 1t. Scalable for drylands, with videos/templates for replication.