4/11/2011 1 Global Research Project 4: Reducing land health risks and targeting Agroforestry interventions to enhance land productivity • Develop methods for evidenced-based management of land health – Land Health Surveillance • Apply methods to multi-scale targeting of sustainable land management & assessing intervention outcomes ? Cost surfaces, etc. Regional Spatial Information Systems Elevation Vegetation Hydrology Topographical properties Climate Landsat Legacy data ASTER Quickbird MODIS 500 m 250 m 28.5 m 15 m 2.4 m 0.6 m Sentinel Site Framework a spatially stratified, hierarchical, r a n d o mized sampling framework Sentinel site (100 km 2 ) 16 Clusters (1 km 2 ) 10 Plots (1000 m 2 ) 4 Sub-Plots (100 m 2 ) Soil-Plant Spectral Diagnostics • Spectral methods and decision support tools • Reference lab for AfSIS • Capacity building
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
4/11/2011
1
Global Research Project 4:
Reducing land health risks and targeting Agroforestry interventions to enhance land productivity
• Develop methods for evidenced-based management of land health – Land Health Surveillance
• Apply methods to multi-scale targeting of sustainable land management & assessing intervention outcomes ?
Cost surfaces, etc.
Regional Spatial Information Systems
Elevation
Vegetation
Hydrology
Topographical properties
Climate
Landsat
Legacy data
ASTER
Quickbird
MODIS500 m
250 m
28.5 m
15 m
2.4 m
0.6 m
Sentinel Site Framework
a spatially stratified, hierarchical, randomized sampling framework
Sentinel site (100 km2)
16 Clusters (1 km2)
10 Plots (1000 m2)
4 Sub-Plots (100 m2)
Soil-Plant Spectral Diagnostics
• Spectral methods and decision support tools
• Reference lab for AfSIS
• Capacity building
4/11/2011
2
Digital mapping land constraints
Soil erosion risk Mount Meru, Tanzania
Automated reporting
Documentation of AfSIS methods and guidelines for implementation
4/11/2011
3
0
13
25
38
50
Sites sampled2009
2010
2011
2009
2010
2011
2010
2011
2500
5000
7500
10000
12500
15000
17500
20000
Plots sampledNIR library
M IR library
Reference analysis
2009
2010
2011
2009
2010 2011
2009
AfSIS Sentinel Site Surveys2011
(underway)
Sentinel Site baselines – modeling responses
Day number
Pla
nt b
iovo
lum
e
20 40 60 80 100
0
200
400
600
800
1000
1200TRUEFALSE
Infiltration rates +/- woody
cover
Crop growth curves +/- erosion
Eroded areas
AfSIS external reviewPioneering unique effort• Pioneering effort intended to fill one of the major gaps in spatial information worldwide• Unique scientific effort never attempted before. Admirable first done in Africa.• Highly motivated team of creative scientists.• Well on track to deliver on its major goals
Outstanding design & implementation• Well-documented, unique soil health surveillance methodology.• Outstanding design and implementation of field surveillance under very difficult conditions.• Sentinel sites will likely become long-term monitoring and research sites for many different
purposes.
Soil spectroscopy lab a pioneering facility / Excellent training of NARS• Systematic use of IR spectroscopy is groundbreaking in the world of soil testing. • The ICRAF soil spectroscopy lab is a pioneering facility and many experts are taking notice.• Great progress in building soil spectral libraries for functional interpretation.• Good, well-documented workflows and quality control protocols. • Excellent training of NARS collaborators provided by the ICRAF lab.
• Excellent potential for digital soil mapping in Africa / Large spill over effects• Excellent potential to link the soil spectral analysis information with higher-resolution remote
sensing data for digital soil mapping in Africa through automated mapping techniques. • Large spillover effects due to other projects and initiatives adopting the methodologies
AfSIS external review - Recommendations• Measures should be taken now to beef up data processing
and analysis capacity in order to take advantage of the rapidly increasing inflow of new data coming from field surveillance and lab analysis
• Leverage more funds for capacity building for soil spectroscopy/digital soil mapping. A larger number of scientists need to be trained in the unique field surveillance and laboratory methods.
• Further raise awareness among policy makers, who are among the primary users of AfSIS products, and gather more support for additional activities as national level.
• Position AfSIS to primarily become a demand-driven service provider operating with a business mindset, but backed up by solid science.
4/11/2011
4
Regional interfaces
Tibetan Plateau/ Mekong
Africa Soils Information Service
Cocoa nutrition - CDI
Land health metrics Tanzania
Parklands Malawi
National surveillance systems
Land Health Regional Info Systems
Project baselines
Rwanda, Ethiopia
Rangeland carbon KenyaLand health W Kenya
Agroecological Information SystemCRP5 Water, Land, Ecosystems
on priority land health interventions for sustainable land management, e.g. prevalent soil constraints, woody cover, erosion risks
National scale: • Formulate risk prevention and rehabilitation policies for land
health management;• Formulate concrete and specific action plans and monitor
impacts;• Aggregate scientifically sound monitoring & evidence of
impacts;• Evidence for Carbon and PES projects• Evidence-based reporting to UN conventions; • Improve public awareness and understanding of risks to land