Mapping rainwater management strategies at landscape scale
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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

Overview

  • Introduction

  • Concepts used (definitions)

  • Modeling framework with illustration

  • Using the maps

  • Up-coming research


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


Overview

  • Introduction

  • Concepts used (definitions)

  • Modeling framework with illustration

  • Using the maps

  • Up-coming research


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


Landscape approach to water

intro concept framework use up-coming


Landscape approach to water

Highland : infiltration ↑

Midlands : SWC ↑

Lowlands : efficiency ↑

intro concept framework use up-coming


Rainwater management strategy

intro concept framework use up-coming


Overview

  • Introduction

  • Concepts used (definitions)

  • Modeling framework with illustration

  • Using the maps

  • Up-coming research


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


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


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


Suitability criteria
Suitability criteria and institutional drivers for each individual practice


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


Getting single feasibilty maps and institutional drivers for each individual practice

Bio-physical suitability

Willingness to adopt

Feasibility map

intro concept framework use up-coming


Biophysical suitability maps and institutional drivers for each individual practice

equal weight aggregation

intro concept framework use up-coming


Adoption maps small area estimation technique
Adoption maps : and institutional drivers for each individual practice Small area estimation technique


Adoption rule for orchard
Adoption rule for orchard and institutional drivers for each individual practice


Adoption rule for swc
Adoption rule for SWC and institutional drivers for each individual practice


Adoption rule for diversion
Adoption rule for diversion and institutional drivers for each individual practice


Willingness of adoption maps and institutional drivers for each individual practice

intro concept framework use up-coming


Feasibility maps and institutional drivers for each individual practice

intro concept framework use up-coming


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


Strategy quantification
Strategy quantification and institutional drivers for each individual practice


Aggregation into strategies at landscape scale and institutional drivers for each individual practice

zonal overlay with a landscape layer

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

intro concept framework use up-coming


Overview and institutional drivers for each individual practice

  • Introduction

  • Concepts used (definitions)

  • Modeling framework with illustration

  • Using the maps

  • Up-coming research


Using the maps and institutional drivers for each individual practice

  • 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


Overview and institutional drivers for each individual practice

  • Introduction

  • Concepts used (definitions)

  • Modeling framework with illustration

  • Using the maps

  • Up-coming research


Up-coming research and institutional drivers for each individual practice

  • 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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