mariana rufino 2013: identifying pro-poor mitigation options for smallholder agriculture in the...
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The goal for pro-poor mitigation activity, is to develop a low-cost protocol to quantify greenhouse gas emissions and to identify mitigation options for smallholders at whole-farm and landscape levels. Learn more: www.ccafs.cgiar.orgTRANSCRIPT
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Identifying pro-poor mitigation options for
smallholder agriculture in the developing world:
a multi-criteria and across-scales assessment
Mariana Rufino, Todd Rosenstock, Lini Wollenberg, Klaus Butterbach-Bahl
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• Why multiple scales?
• Why multi-criteria?
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• Mitigation not linked to livelihoods
• Fragmented and diverse landscapes
• No data on mitigation
• Multi-criteria approaches missing
The concerns
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Develop a low-cost protocol to quantify greenhouse gas emissions and to identify mitigation options for smallholders at whole-farm and landscape levels
The goal
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How to identify mitigation options at farm and landscape level?
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Landscape analysis and targeting
Landscape implementation
Multi-dimensional evaluation of mitigation options
Scalable and social acceptable mitigation options
System-level estimation of mitigation potential
Set-up of state-of-the-art laboratory facilities
Training of laboratory and field staff
Phase III: Development of systems-level mitigation options
Phase I: Targeting, priority setting and infrastructure
Phase II: Data acquisition
Cap
acity bu
ildin
g
Phase IV: Implementation with development partners
(UPCOMING)
Productivity assessment
GHG measurements
Profitability evaluation
Social acceptability assessment
Joint scientific & stakeholder evaluation
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Complex landscape: f (m, n, o, p, q)
m Landscape units
n Farm types
Land Livestock
Other assets Sources of incomes
p Field types Characterise
fertility x management
Physical environment
GIS analysis, remote sensing, landuse trends
Food security, poverty levels
Productivity, GHG
emissions, crop
preferences
o Common lands
q Land types
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Landscape patterns
Nyando, western Kenya
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Cultivated (subsistence) id 15 Cultivated (cash crops)
id 11
Mixed id 2
Landscape patterns simplified
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Nyando, western Kenya
Landscape structure
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Mean NDVI 2001 2002 2003 2004
2005 2006 2007 2008
2009 2010 2011 2012
MODIS time series – Nyando, western Kenya
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NDVI across landscape units (Timesat)
Baldi et al. 2013
Nyando, western Kenya
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Nyando, western Kenya
Landscape units + household survey
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Landscape units and land users
Sampling intensity (sites: area)
In terms of a 250 m square grid
class sites area (km2) sites:area
cultivated (cash and subsistence) 28 2.74 10.23
cultivated (cash) 47 5.94 7.91
cultivated (grasslands and pastures) 47 12.69 3.70
cultivated (subsistence) 141 41.54 3.39
mixed 93 34.69 2.68
uncultivated vegetation 4 2.39 1.67
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Landscape units and landusers Nyando, Kenya
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Complex landscape: f (m, n, o, p, q)
m Landscape units
n Farm types
Land Livestock
Other assets Sources of incomes
p Field types Characterise
fertility x management
Physical environment
GIS analysis, remote sensing, landuse trends
Food security, poverty levels
Productivity, GHG
emissions, crop
preferences
o Common lands
q Land types
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Targeting and upscaling: from landscape to fields and back…
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Step 1. Landscape analysis Step 2. Installing measurement
stations
Targeting: - Landscape units, farm types,
field types, soils - Site selection
Site characterization: - Soils, crops, biomass
Installation of chamber frames
Informing and interviewing farmers
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Step 3. Measurements applying gas pooling
Step 4. Lab analysis and flux
calculations
Field work: - Overcoming spatial variability
by gas pooling method
Gas sampling(closed chamber method)
Storage of gas samples in vials
Determination of trace gas concentrations via gas chromatography
Lab work: - Analyzing gas samples - Calculating concentrations and
fluxes
9
6
10**
10*60***
mCh
Ch
VA
VMwbF
Flux calculation formula
Arias-Navarro et al., Soil Biol. Biochem. submitted
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Step 5. Intepretation and upscaling
30 Oct 4 Nov 9 Nov 14 Nov 19 Nov 24 Nov 29 Nov
0
25
50
75
100
250500
N2O
flu
x [µ
g N
m-2 h
-1]
2012
0
25
50
75
100
250500
0
25
50
75
100
250500
Cropland
Grassland
individual chambers
gas pooling
Forest
Temporal variability of N2O fluxes at three sites differing in land use at Maseno, Kenya.
Synthesis of GHG measurements: information useful to derive emission factors, empirical models, calibrating and validating of detailed models Upscaling: using the targeting approach (assigning emissions to landscape elements) and/or of GIS coupled biogeochemical models
Arias-Navarro et al., Soil Biol. Biochem. submitted
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Complex landscape: f (m, n, o, p, q)
m Landscape units
n Farm types
Land Livestock
Other assets Sources of incomes
p Field types Characterise
fertility x management
Physical environment
GIS analysis, remote sensing, landuse trends
Food security, poverty levels
Productivity, GHG
emissions, crop
preferences
o Common lands
q Land types
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Farmtype
Field type
Profit ($/ha)
Production (kg/ha)
Emissions (t CO2eq per ha)
Emissions (kg CO2 per kg product)
Social acceptability (ranking)
1 1 50 500 0.6 1.2 1
1 2 140 5000 3 0.6 2
1 3 120 2000 2 1.0 2
1 4 40 4500 3 0.7 1
2 1 30 800 0.7 0.9 3
2 3 180 8000 3 0.4 2
2 4 250 300 0.5 1.7 1
n m Vn,m Wn,m Xn,m Yn,m Zn,m
Multi-dimensional assessment of mitigation options
Trade-off analysis on multiple dimensions
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Landscape analysis and targeting
Landscape implementation
Multi-dimensional evaluation of mitigation options
Scalable and social acceptable mitigation options
System-level estimation of mitigation potential
Set-up of state-of-the-art laboratory facilities
Training of laboratory and field staff
Phase III: Development of systems-level mitigation options
Phase I: Targeting, priority setting and infrastructure
Phase II: Data acquisition
Cap
acity bu
ildin
g
Phase IV: Implementation with development partners
(UPCOMING)
Productivity assessment
GHG measurements
Profitability evaluation
Social acceptability assessment
Joint scientific & stakeholder evaluation
![Page 24: Mariana Rufino 2013: Identifying Pro-Poor Mitigation Options for smallholder agriculture in the developing world](https://reader034.vdocuments.site/reader034/viewer/2022051818/54945fd6b47959962d8b591c/html5/thumbnails/24.jpg)
• Why multiple scales? -> landscape redesign
• Why multi-criteria? -> landusers are (often) poor