Nile Basin Development Challenge (NBDC)                                  Nile 3 on targeting and scaling outMapping rainwa...
Upcoming SlideShare
Loading in …5
×

Mapping rainwater management strategies at landscape scale

614 views
544 views

Published on

Poster by Catherine Pfeifer and An Notenbaert for the NBDC Stakeholder Forum, Bahir Dar, Ethiopia, 5 October 2011.

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
614
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
11
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Mapping rainwater management strategies at landscape scale

  1. 1. Nile Basin Development Challenge (NBDC) Nile 3 on targeting and scaling outMapping rainwater management strategies at landscape scale Catherine Pfeifer (ILRI/IWMI), An Notenbaert (ILRI) Conclusion: Objective : Objective Feasibility map suggests site-specific menu CreateCreate feasibility map • feasibility maps for rainwater of rainwater management practices to based on bio-physical and management strategies at landscape scale communities and smallholders including bio-physical as criteria socio- socio-economic well as for economic criteria management rainwater Up-coming challenges : • Mapping willingness of adoption strategies (RMS) • Define the borders of the landscape • Involve partners into the mapping • Develop a simple tool for partnersRainwater management strategy at landscape scale:A bundle of rainwater management practices (managementdecision taken by the smallholder or his community) that covers Resultthe whole gradient of the landscape and maximizes waterretention or water productivity within the landscape. RMSModeling approach Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practices (diversion, terraces, trees,…) Transformation into spatially explicit variables and threshold definition Mapping RMS at landscape scale Criteria for Suitability map Suitability map Suitability map mapping : practice A practice B practice C Apple tree Min temp<10c Market <8 hours Luvisol, nitisol,  Plot size > 1 ha  leptosol Drought  risk< high Mango trees Nitisol Market <8 hours Sub‐humid zone Plot size > 1ha  Bench terracing  Semi‐arid‐humid Household size Access to advice  soils drain.≠ poor land frag. Slope 12‐58% Agri.dependency Hillside terracing Arid and semi‐arid Pop. density Access to advice  Rainwater management strategy map slope 10‐ 50% household size Land frag. plot size >1 ha  Agri.dependency River diversion 2.5km near river Access to capital Access to advise soil texture=fine household size Suitability maps for individual practices : combines bio-physical and socio-economic criteria Combination can be based on equal weighting (used here), weight of evidence (Bayesian weight), mapping willingness of adoption by up-scaling household data (poverty mapping approach) September 2011 http://nilebdc.wikispaces.com/ http://nilebdc.org/

×