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Mapping rainwater management strategies at landscape scale Nile 3 on targeting and scaling out

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Mapping rainwater management strategies at landscape scale Nile 3 on targeting and scaling out. Overview. Introduction Concepts used (definitions) Modeling framework with illustration Using the maps Up-coming research. Targeting and scaling out tool. Objective

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Presentation Transcript
slide2

Overview

  • Introduction
  • Concepts used (definitions)
  • Modeling framework with illustration
  • Using the maps
  • Up-coming research
slide3

Targeting and scaling out tool

  • Objective
  • Feasibility maps that includes bio-physical and socio-economic criteria
  • Landscape approach to rainwater management modeling

intro concept framework use up-coming

slide4

Overview

  • Introduction
  • Concepts used (definitions)
  • Modeling framework with illustration
  • Using the maps
  • Up-coming research
slide5

Some definitions

  • Rainwater management practice = farmers’ choice to improve water retention or water productivity
    • Soil and water conservation (bunds, …)
    • Water harvesting
    • Tree (agro-forestry)
    • Livestock and grassland management
    • Crops and fertility management
  • Intervention = “external actor” to enable a practice change

intro concept framework use up-coming

slide6

Landscape approach to water

intro concept framework use up-coming

slide7

Landscape approach to water

Highland : infiltration ↑

Midlands : SWC ↑

Lowlands : efficiency ↑

intro concept framework use up-coming

slide8

Rainwater management strategy

intro concept framework use up-coming

slide9

Overview

  • Introduction
  • Concepts used (definitions)
  • Modeling framework with illustration
  • Using the maps
  • Up-coming research
slide10

Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practice

(diversion, terraces, trees,…)

Modeling framework

Transformation into spatially explicit variables and threshold definitions

Mapping RMS at landscape scale

intro concept framework use up-coming

Feasibility map

practice A

Feasibility map

practice B

Feasibility map

practice C

Rainwater management strategy map

slide11

Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practice

(diversion, terraces, trees,…)

Modeling framework

Database of 80 practices

Transformation into spatially explicit variables and threshold definitions

Mapping RMS at landscape scale

intro concept framework use up-coming

Feasibility map

practice A

Feasibility map

practice B

Feasibility map

practice C

Rainwater management strategy map

slide12

Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practice

(diversion, terraces, trees,…)

Modeling framework

Transformation into spatially explicit variables and threshold definitions

Mapping RMS at landscape scale

intro concept framework use up-coming

Feasibility map

practice A

Feasibility map

practice B

Feasibility map

practice C

Rainwater management strategy map

slide14

Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practice

(diversion, terraces, trees,…)

Modeling framework

Transformation into spatially explicit variables and threshold definitions

Mapping RMS at landscape scale

intro concept framework use up-coming

Feasibility map

practice A

Feasibility map

practice B

Feasibility map

practice C

Rainwater management strategy map

slide15

Getting single feasibilty maps

Bio-physical suitability

Willingness to adopt

Feasibility map

intro concept framework use up-coming

slide16

Biophysical suitability maps

equal weight aggregation

intro concept framework use up-coming

slide21

Willingness of adoption maps

intro concept framework use up-coming

slide22

Feasibility maps

intro concept framework use up-coming

slide23

Identification of bio-physical conditions, socio-economic and institutional drivers for each individual practice

(diversion, terraces, trees,…)

Modeling framework

Transformation into spatially explicit variables and threshold definitions

Mapping RMS at landscape scale

intro concept framework use up-coming

Feasibilty map

practice A

Feasibilty map

practice B

Feasibilty map

practice C

Rainwater management strategy map

slide25

Aggregation into strategies at landscape scale

zonal overlay with a landscape layer

Bio-physical map, willingness of adoption map, feasibility map

intro concept framework use up-coming

slide26

Overview

  • Introduction
  • Concepts used (definitions)
  • Modeling framework with illustration
  • Using the maps
  • Up-coming research
slide27

Using the maps

  • High uncertainty
  • Difficulty to validate the maps
  • Entry point to start a discussion with community
  • Towards an open source GIS tool for policy makers, research centers, NGO, extension service

intro concept framework use up-coming

slide28

Overview

  • Introduction
  • Concepts used (definitions)
  • Modeling framework with illustration
  • Using the maps
  • Up-coming research
slide29

Up-coming research

  • Map validation in 4 new watersheds
    • Using the “happy strategy game”
    • Farm household survey (600 farmers)
  • Impact assessment
    • on hydrology, ecosystem services, livelihoods
  • Explorative scenarios

intro concept framework use up-coming

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