Шинэ ойжуулалт

Энэ хөтөлбөр яагаад бий болсон бэ

Decades of overgrazing have left swaths of Mongolian grassland soil-bare and wind-eroded — not productive grassland anymore, but not yet desert. These edge sites are appropriate for tree cover; they need it to anchor soil and break wind. The line we hold: never plant on intact native steppe, which is a healthy ecosystem in its own right.

Хэрхэн ажилладаг

1. 1

   GIS site suitability

   Layer historic land cover, soil organic carbon, and grazing pressure data. Only sites already degraded — typically peri-urban and along major roads — make the cut.

2. 2

   Drought-tolerant species

   Siberian elm, Russian olive, poplar and larch — species that survive on <400mm rainfall without supplemental irrigation past Year 1.

3. 3

   Row planting

   1.5m within-row spacing, 3m between rows. Sufficient density to shade out competing weeds but spaced for individual canopy at maturity.

4. 4

   Year-1 watering + fencing

   Monthly irrigation in dry months, fenced against grazing. Year 2-3 typically rain-fed only.

5. 5

   Y1/Y3 audit + soil tracking

   Survival audit plus soil organic carbon sampling at planting + Y3 to confirm soil health improvement, not just tree count.

Тарьсан зүйл

Эх сурвалж, шинжлэх ухаан

• Бастин нар, "Дэлхийн модыг нөхөн сэргээх боломж" (Science 2019)
• Sukhbaatar et al. 2020 — Mongolian afforestation site suitability
• FAO/GIZ Mongolia — Sustainable Land Management Practices