Resource Details

Regenerating woodlands: Tanzania’s HASHI Project

Literature: Available at NO COST Manuals, Guides, Reports

Ghazi, P., Barrow, E., Mlenge, W., & Monela, G. 2005, Regenerating woodlands: Tanzania’s HASHI Project, eds. R.SanGeorge, D.Jhirad , A.Hammond, & P.Angell, The World Resources, Washington, DC pp. 131-138.

Contact Info


  • The World Reosurces Institute, Washington, DC


Species Info

  • Acacia tortilis
  • Acacia tanganyikensis
  • Acacia senegal
  • Acacia mellifera
  • Acacia kirkii
  • Acacia seyal var. fistula
  • Acacia drepanolobium
  • Acacia sieberiana
  • Acacia polyacantha
  • Albizia harveyi
  • Commiphora africana
  • Combretum zeyheri
  • Cordia sinensis
  • Dalbergia melanoxylon
  • Diplorhynchus condylocarpon
  • Pterocarpus angolensis


  • The HASHI project is a major restoration effort based on the traditional practice of restoring vegetation in protected enclosures or ngitili in Shinyanga Region in Tanzania. The goal of this project was to improve natural resources management and facilitate the recovery of degraded forestlands by revitalizing the traditional ngitili system.
  • Ngiliti is an indigenous natural resources management system. Traditionally, ngiliti was used to provide fodder for livestock. Vegetation and trees are nurtured on fallow lands during the wet season to provide livestock fodder supplies in the dry season.There are 2 types of ngiliti: enclosures owned by individuals or families, and communal enclosures owned and managed in common.
  • HASHI field officers used residual natural seed and rootstock to restore ngitili enclosures in many villages. In others, active tree planting, first planting with exotic species, later with indigenous tree species preferred by local people, especially around homesteads.
  • 18 years into the project, at least 350,000ha of ngiliti had been restored in 833 villages. Of the 350,000ha restored roughly half of this is owned by groups and the other half by individuals.
  • In summary, the HASHI project has been successful in restoring degraded lands in this region and generating substantial benefits to locals. This suggests the importance of traditional knowledge combined with modern knowledge. On the other hand some problems identified by the HASHI project are insecure land tenure discouraging regeneration and inequitable distribution of benefits.

Geographical Region

  • East Africa
  • Country

  • Tanzania
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