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Land-use/cover changes in relation to stream dynamics in a marginal graben along the northern Ethiopian Rift Valley

(2019) PHYSICAL GEOGRAPHY. 40(1). p.71-90
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Abstract
This paper investigates land-use/cover changes related to river dynamics in northern Ethiopia. Aerial photographs from 1965 to 1986, and SPOT images of 2007 and 2014 were used to extract land units. Land-use/cover changes took place in 48% of the entire landscape around the river across the last five decades. Changes related to swap accounted for 37%, whereas net changes accounted for 11%. The most systematic transitions in terms of gain were from shrubland to farmland, alluvial deposit to settlement, and alluvial deposit to active channel and settlement. Most of these transitions were related to the river dynamics and depict cyclic transitions: farmland -> active channel -> alluvial deposits -> grassland/shrubland -> farmland. Human interventions and natural vegetation succession were also very important. The study concludes that river systems have considerable impact on livelihood and need attention in land management undertakings in graben bottoms.
Keywords
SEDIMENT TRANSPORT, COVER TRANSITIONS, EPHEMERAL STREAM, GOOGLE EARTH, KOBO BASIN, LANDSCAPES, CONSEQUENCES, CONSERVATION, RIVERSCAPES, ACCURACY, Vegetation succession, river, land use/cover, Raya graben, land, transition, stream dynamics

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Citation

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Chicago
Mullaw, Biadgilgn Demissie, Jan Nyssen, Paolo Billi, Mitiku Haile, Veerle Van Eetvelde, and Amaury Frankl. 2019. “Land-use/cover Changes in Relation to Stream Dynamics in a Marginal Graben Along the Northern Ethiopian Rift Valley.” Physical Geography 40 (1): 71–90.
APA
Mullaw, B. D., Nyssen, J., Billi, P., Haile, M., Van Eetvelde, V., & Frankl, A. (2019). Land-use/cover changes in relation to stream dynamics in a marginal graben along the northern Ethiopian Rift Valley. PHYSICAL GEOGRAPHY, 40(1), 71–90.
Vancouver
1.
Mullaw BD, Nyssen J, Billi P, Haile M, Van Eetvelde V, Frankl A. Land-use/cover changes in relation to stream dynamics in a marginal graben along the northern Ethiopian Rift Valley. PHYSICAL GEOGRAPHY. Abingdon: Taylor & Francis Ltd; 2019;40(1):71–90.
MLA
Mullaw, Biadgilgn Demissie, Jan Nyssen, Paolo Billi, et al. “Land-use/cover Changes in Relation to Stream Dynamics in a Marginal Graben Along the Northern Ethiopian Rift Valley.” PHYSICAL GEOGRAPHY 40.1 (2019): 71–90. Print.
@article{8586477,
  abstract     = {This paper investigates land-use/cover changes related to river dynamics in northern Ethiopia. Aerial photographs from 1965 to 1986, and SPOT images of 2007 and 2014 were used to extract land units. Land-use/cover changes took place in 48\% of the entire landscape around the river across the last five decades. Changes related to swap accounted for 37\%, whereas net changes accounted for 11\%. The most systematic transitions in terms of gain were from shrubland to farmland, alluvial deposit to settlement, and alluvial deposit to active channel and settlement. Most of these transitions were related to the river dynamics and depict cyclic transitions: farmland -{\textrangle} active channel -{\textrangle} alluvial deposits -{\textrangle} grassland/shrubland -{\textrangle} farmland. Human interventions and natural vegetation succession were also very important. The study concludes that river systems have considerable impact on livelihood and need attention in land management undertakings in graben bottoms.},
  author       = {Mullaw, Biadgilgn Demissie and Nyssen, Jan and Billi, Paolo and Haile, Mitiku and Van Eetvelde, Veerle and Frankl, Amaury},
  issn         = {0272-3646},
  journal      = {PHYSICAL GEOGRAPHY},
  language     = {eng},
  number       = {1},
  pages        = {71--90},
  publisher    = {Taylor \& Francis Ltd},
  title        = {Land-use/cover changes in relation to stream dynamics in a marginal graben along the northern Ethiopian Rift Valley},
  url          = {http://dx.doi.org/10.1080/02723646.2018.1458577},
  volume       = {40},
  year         = {2019},
}

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