31.03.2015 Aufrufe

Wasser in der Landwirtschaft - agriwaterpedia.info

Wasser in der Landwirtschaft - agriwaterpedia.info

Wasser in der Landwirtschaft - agriwaterpedia.info

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and central Ethiopian highlands. Whilst global causes for climate change were debated with <strong>in</strong>creas<strong>in</strong>g<br />

controversy on various <strong>in</strong>ternational platforms, Ethiopia prepared itself for the next drought.<br />

Measures taken <strong>in</strong>clude among others<br />

• Improvement and expansion of the national and regional road network<br />

• Establishment of a strategic food reserve<br />

• Plan for Accelerated and Susta<strong>in</strong>ed Development to End Poverty (PASDEP)<br />

• A large-scale soil and water conservation supported by a series of Integrated Food Security<br />

Projects (IFSPs) and the Productive Safety Net Program (PSNP)<br />

• Promotion of zero/controlled graz<strong>in</strong>g practice<br />

How will global warm<strong>in</strong>g and climate change<br />

affect the region <strong>in</strong> future?<br />

• Global warm<strong>in</strong>g may result <strong>in</strong> a change of<br />

climatic conditions rang<strong>in</strong>g from drought to<br />

excessive ra<strong>in</strong>fall and flood hazards.<br />

• Total annual ra<strong>in</strong>fall may not necessarily decrease,<br />

but may even <strong>in</strong>crease.<br />

• Ra<strong>in</strong>fall variability is likely to <strong>in</strong>crease ren<strong>der</strong><strong>in</strong>g<br />

crop and livestock production a much more risky<br />

endeavour.<br />

• Commonly applied farm<strong>in</strong>g practices (agriculture)<br />

may fail and lead to crop failure, poor livestock<br />

production and food shortages.<br />

Climate change adaptation pr<strong>in</strong>ciples<br />

• Apply measure to reduce vulnerability of communities and households to climate change<br />

• Apply measure to realize opportunities of climate change<br />

• Harvest and store ra<strong>in</strong>fall and runoff w ater<br />

- Where it falls - on hillsides, on farmland, <strong>in</strong> planes<br />

- When it falls - before it causes erosion<br />

- As much as possible and economically and ecologically feasible<br />

- Where it is needed - <strong>in</strong> the soil - through low cost <strong>in</strong>-situ water harvest<strong>in</strong>g techniques<br />

- Selectively apply more costly ex-situ water harvest<strong>in</strong>g structures (household ponds, cisterns,<br />

earth dams)<br />

• Capacity build<strong>in</strong>g of agricultural extension services<br />

• Awareness creation among farm<strong>in</strong>g communities<br />

• Improve weather <strong>in</strong>formation system and weather forecasts<br />

• Introduce a climate hazard (crop and livestock) <strong>in</strong>surance<br />

Community-based participatory watershed management<br />

S<strong>in</strong>ce 1986 75 per cent of the surface area of Tigray exposed to soil erosion has been treated with terraces.<br />

After experienc<strong>in</strong>g higher annual ra<strong>in</strong>fall over the past five years, terrac<strong>in</strong>g and deep trench<strong>in</strong>g is<br />

commonly applied on hillsides as well as on farmland. Further <strong>in</strong>-situ water harvest<strong>in</strong>g techniques have<br />

been developed and tested. Gully treatment is common. All physical measures applied on hillsides,<br />

farmland and <strong>in</strong> gullies are comb<strong>in</strong>ed with biological rehabilitation measures ensur<strong>in</strong>g short-term benefits<br />

49

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