Journal of
Horticulture and Forestry

  • Abbreviation: J. Hortic. For.
  • Language: English
  • ISSN: 2006-9782
  • DOI: 10.5897/JHF
  • Start Year: 2009
  • Published Articles: 297

Full Length Research Paper

Evaluation of selected multipurpose tree species and moisture conservation structures for degraded dryland rehabilitation in Dugda Dawa District, Southern Ethiopia

Siraj Kelil
  • Siraj Kelil
  • Oromia Agricultural Research Institute, Yaballo Pastoral and Dryland Agriculture Research Center, Yaballo, Ethiopia.
  • Google Scholar
Sisay Taye
  • Sisay Taye
  • Oromia Agricultural Research Institute, Yaballo Pastoral and Dryland Agriculture Research Center, Yaballo, Ethiopia.
  • Google Scholar
Desta Negeyo
  • Desta Negeyo
  • Oromia Agricultural Research Institute, Adami-tulu Agricultural Research Center, Batu, Ethiopia.
  • Google Scholar
Feyisa Seboka
  • Feyisa Seboka
  • Department of Natural Resources Management, Ambo University, Ambo, Ethiopia.
  • Google Scholar
Hayleyesus Agonafer
  • Hayleyesus Agonafer
  • Oromia Agricultural Research Institute, Yaballo Pastoral and Dryland Agriculture Research Center, Yaballo, Ethiopia.
  • Google Scholar
Tadessa Negash
  • Tadessa Negash
  • Oromia Agricultural Research Institute, Yaballo Pastoral and Dryland Agriculture Research Center, Yaballo, Ethiopia.
  • Google Scholar
Bultu Kusa
  • Bultu Kusa
  • Oromia Agricultural Research Institute, Adami-tulu Agricultural Research Center, Batu, Ethiopia.
  • Google Scholar


  •  Received: 10 May 2021
  •  Accepted: 02 June 2021
  •  Published: 30 June 2021

Abstract

Land degradation affecting the livelihoods of people living in dryland areas, particularly the Sub-Saharan Africa countries like Ethiopia. Degraded land rehabilitation in dryland is a challenging task due to moisture limitation. This study was conducted to evaluate the effects of soil and water conservation structures on growth of planted tree and rehabilitation of indigenous plant species in West Guji Zone, Dugda Dawa District. Four multipurpose tree species (MPTs) namely Faidherbia albida, Melia azedarach, Moringa stenopetala, and Sesbania sesban were planted in four soil and moisture conservation structures (soil level bund, half-moon, trench and normal pit). Data of survival rate, height and diameter growth of planted tree species and, diversity and species richness of indigenous plant species were collected. The survival rate of all planted MPTs species were declining along the study years; however, the survival rate was better under soil level bund and half-moon. Under control treatments, all planted MPTs died at the end of the study period. The height and stem diameter of F. albida, M. azedarach and M. stenopetala were best in soil level bund and half-moon and followed by the trench. Whereas, the growth performance of Sesbania sesban was not significantly different among the three moisture conservation structures. Furthermore, soil moisture conservation structures significantly increased the indigenous plant species regeneration after the intervention. The mean indigenous plant species diversity and richness were significantly highest in half-moon and soil level bund followed by trench and, lowest in Control (normal pit). Thus, the results a potential for alternative forest and soil restoration in arid areas.

Key words: Rehabilitation, Land degradation, survival rate,Trees growth, Indigenous plant species diversity, Moisture conservation structures.