Advertisement
Advertisement

More Related Content

More from ILRI(20)

Recently uploaded(20)

Advertisement

Soil and water conservation and forestry interventions at the Kabe Watershed Pilot Project in Ethiopia, 2011-2013

  1. Soil and water conservation and forestry interventions at the Kabe Watershed Pilot Project in Ethiopia, 2011-2013 Asmare Wubet (Sirinka Agricultural Research Center, ARARI) Workshop on the lessons and success stories from a pilot project on climate change adaptation interventions in Kabe watershed, south Wollo, Ethiopia, Addis Ababa, 11-12 February 2013
  2. 1. Introduction  Due to climate change recurrent droughts, erosion and flooding and drying of streams, springs and lakes appear to be increasing in Ethiopia.  To alleviate the problem, the government have given greater emphasis for watershed based soil and water conservation (Biological and physical).  Millions of tree seedlings have been planted by different afforestation programs in order to improve the environmental conditions of different areas. However, survival of the seedlings is not as expected in many of the areas.  Water stress is one of the major limiting factors, which reduces the survival rate and productivity of tree seedlings.  So, there is a need to test different mechanisms to increase seedling survival such as in-situ moisture conservation and adaptive species.
  3. 2. Methods Using community mass mobilization and safety net program a huge soil and water conservation structures were constructed in the watershed. Different grass species and multipurpose tree species were planted on constructed physical structures and on the top of the watershed (afforestation area). As a demonstration, 250 seedlings of five tree species were planted on different in-situ moisture conservation structures.
  4. 3. Results Physical conservation structures Participants Description Unit Plan Achievement Contribution Male Female Total in Birr Stone terrace ha 78.25 83.4 12178 9247 21425 214,250.00 Cut off drain ha 0.53 0.65 120 65 185 1,850.00 Stone faced soil ha 89.6 93.2 16150 7868 24018 240,180.00 bund Hill side terrace ha 42.5 42.5 7314 3558 10872 108,720.00 Trench ha 0.93 0.89 86 98 184 1,840.00 Water percolation ha 4.5 4.46 2256 1964 4220 trench 42,200.00 Stone check dam ha 9 9 2149 715 2864 28,640.00 Planting pits ha 16 12.93 967 650 1617 16,170.00 Total 241.31 247.03 41220 24165 65385 653,850.00
  5. Effect of in-situ moisture conservation measures on seedling survival rate
  6. Biological measures and afforestation at the top of the watershed Description Planted in Survived in % Type of tree seedlings Number ha Number ha Sesbania sesban 10001 84.01 2483 0.25 24.83 Chamaecytisus palmensis 106386 103.42 986 0.10 0.93 Acacia decurrens 38025 3.80 3145 0.31 8.27 Acacia saligna 30508 3.05 16779 1.67 55.00 Juniperus procera 3665 0.36 896 0.08 24.45 Erica arborea 600 0.06 594 0.06 99.00 Arundinaria alpine 1058 0.11 841 0.08 79.49 Guassa (grass) splits 7000 0.70 6965 0.70 99.50 Densho grass splits 354500 17.50 230425 23.04 55.00 Phalaris grass splits 14290 1.42 6488 0.65 45.40 Fistuka grass splits 5000 0.50 2645 0.26 52.90 Acacia abyssinica 2800 0.28 663 0.67 23.68 Total 573833 215.2058 272910 27.8636 47.56
  7. 4. Recommendation  Greater emphasis should be given to stabilize physical soil and water conservation structures using biological measures.  Plantation of seedling integrated with in-situ water harvesting structures should be strictly followed in the next plantation season.  Gully treatment and stabilization should be the first task that we have to do in the coming season.
Advertisement