Present at On of G1 by T P Toung, IRRI
Transcript of Present at On of G1 by T P Toung, IRRI
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Project G1: Resource profiles,
extrapolation domains and landuse patterns
Bangladesh Water Development BoardInternational Rice Research Institute
Institute of Water ModellingLocal Government Engineering Department
Soil Resource Development Institute
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Content
Introduction
Progresses and outputs
Work plan Conclusions
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Work PackagesWP1 Geodatabase of the coastal zone
Identification and acquisition of dataInventory of metadata and data format agreementsDatabase development and documentation
WP2 Characterisation of test sites and poldersGeo-referencing of test sitesIdentification of key site characteristics and resource profiles of trialsIdentification of links between geodatabase layers and sitesLand cover / land use maps and temporal water and soil salinity mapping
WP3 Extrapolation domains for new technologiesIdentification of areas suitable for new technologies and the policies or decisions thatwould be necessary to enable those technologies to succeedRoundtable discussion with partners on extrapolation method and preliminary results
Final domain maps generated and evaluated with partners and LGOsWP4 Land use plans under future hydrological scenariosPreparation of current land-use plansIdentification of future scenarios and drivers of changeMulti criteria land-use modelingRoundtable discussion with partners on preliminary resultsFinal land-use modelsEvaluation and synthesis of land-use maps
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Change in Knowledge, Attitude and/or
SkillsChange in Practice / Behaviour Impact
Project outputs
Compilation of a geodatabase
covering all thematic spatial
information related to the project,
including characterization of the
test sites and study areas
Learn about new technologies and
where its chances of adoption is
greatest.
Use of domain maps as a decision
support tool to more effectively
scale up the adoption of new
technologies
Extrapolation domains for each
technology
Land-use plans based on
trends,constraints, and
interventions
Increased chances of
appropriate technology
adoption and likelihood of
adoption of sustainableland and water use
policies.
Local GO and extension agents responsible for water resource and land
management and land use zoning.
OUTCOMES
Use the maps as decision support
tools when planning future
interventions.
Local GO and extension agents responsible for agricultural technical
innovations
Understand the implications of different
land use plans under different future
scenarios.
Expected Outcomes/Impact
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Outputs & Progress - IRRI
Medium resolution seasonal rice maps published
Rice cropping patterns in Bangladesh (2012) Murali KrishnaGumma, Andrew Nelson, Aileen Maunahan, Prasad S.Thenkabail, and Saidul Islam. Rice Today, Vol 11, No 1
Mapping seasonal rice in a high cropping intensity environmentof Bangladesh using MODIS time-series data and spectral
matching techniques (submitted) Murali Krishna Gumma, AndrewNelson, Aileen Maunahan, Prasad S. Thenkabail, and Saidul Islam.ISPRS Journal of Photogrammetry and Remote Sensing
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
These will be compared with 2004 rice area maps from SRDIand then updated with high resolution land use maps in 2012
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Study sites georeferenced
Polder 3
Aquaculture to Aqua+Rice
or Aqua + Aqua
Polder 30
Intensification from one to
two/three crops
Polder 43/2f
Intensification from
one/two to three crops
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Outputs & Progress - LGED
Mouza boundaries fortarget polders
Smallest geographicunit for Bangladesh
Vital for detailed
socio-economiccharacterizationusing 2001 or 2011census data
Also necessary forgeo-locatinghousehold survey
data that does nothave GPScoordinates
Selected mouza boundaries overlaid on polders
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Outputs & Progress - IWM
Regular monitoring ofwater salinity onalternate days, low andhigh tide
Salinity, water level and other monitoring in the coastal zone
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
All Salinity monitoring location in the River of G4 & G1 project
16 Monitoring
Stations
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
POLDER-30
0.02.0
4.06.08.0
10.012.014.016.018.020.022.0
17-May-1
1
1-Jun-1
1
16-Jun-1
1
1-Jul-11
16-Jul-11
31-Jul-11
15-Aug-1
1
30-Aug-1
1
14-Sep-1
1
29-Sep-1
1
14-Oct-11
29-Oct-11
13-Nov-1
1
28-Nov-1
1
13-Dec-1
1
28-Dec-1
1
12-Jan-1
2
27-Jan-1
2
11-Feb-1
2
26-Feb-1
2
12-Mar-12
-
r-
Salinity
(ppt)
Date
Polder 30 (Station-1, Sholmari river)
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
17-
May-1
1
1
-Jun-1
1
16
-Jun-1
1
1-Jul-11
16-Jul-11
31-Jul-11
15-Aug-1
1
30-Aug-1
1
14
-Sep-1
1
29
-Sep-1
1
14
-Oct-11
29
-Oct-11
13-Nov-1
1
28-Nov-1
1
13-Dec-1
1
28-Dec-1
1
12
-Jan-1
2
27
-Jan-1
2
11
-Feb-1
2
26
-Feb-1
2
12-Mar-12
-
r-
Salinity(ppt)
Date
Polder 30 (Station-2, Pussur river)
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
17-May-1
1
1-Jun-1
1
16-Jun-1
1
1-Jul-11
16-Jul-11
31-Jul-11
15-Aug-1
1
30-Aug-1
1
14-Sep-1
1
29-Sep-1
1
14-Oct-11
29-Oct-11
13-Nov-1
1
28-Nov-1
1
13-Dec-1
1
28-Dec-1
1
12-Jan-1
2
27-Jan-1
2
11-Feb-1
2
26-Feb-1
2
12-Mar-12
-
r-
Sali
nity
(ppt)
Date
Polder 30 (Station-3, Pussur river)
0.0
2.04.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
17-May-1
1
1-Jun-1
1
16-Jun-1
1
1-Jul-11
16-Jul-11
31-Jul-11
15-Aug-1
1
30-Aug-1
1
14-Sep-1
1
29-Sep-1
1
14-Oct-11
29-Oct-11
13-Nov-1
1
28-Nov-1
1
13-Dec-1
1
28-Dec-1
1
12-Jan-1
2
27-Jan-1
2
11-Feb-1
2
26-Feb-1
2
12-Mar-12
27-Mar-12
Sa
linity
(ppt)
Date
Polder 30 (Station-4, Jhapjhapia river)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
16-Jun-1
1
1-Jul-11
16-Jul-11
31-Jul-11
15-Aug-1
1
30-Aug-1
1
14-Sep-1
1
29-Sep-1
1
14-Oct-11
29-Oct-11
13-Nov-1
1
28-Nov-1
1
13-Dec-1
1
28-Dec-1
1
12-Jan-1
2
27-Jan-1
2
11-Feb-1
2
26-Feb-1
2
12-Mar-12
27-Mar-12
Salinity
(ppt)
Date
Inside Polder 30 (Station-5, Kharia Khal)
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Salinity monitoring locations in the River of ongoing projects (IWM, BWDB, World bank)
31 Monitoring
Stations
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BWDB Rainfall and Evaporation stations in the Coastal Area
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BWDB Salinity stations in the Coastal Area
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Outputs & Progress - SRDI
In the three target polders
there are four soil salinitymonitoring sites which aresynchronized withIWM water salinitymonitoring sites. [Polder 3,
30, 43/2F]
Soil Salinity monitoring at Project sites
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Outputs & Progress - SRDI
We continue monitoring soil salinity in 65 SRDI-sites distributed allover the coastal zone. In most places we take one sample each
site per month. But from March to May we monitor twice amonth.
We are measuring salinity of surface (015 cm) and sub surface(1530 cm) soil
Soil Salinity monitoring of SRDI-networks
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Outputs & Progress - SRDITopsoil EC (dS/m) of greater Khulna district.
Site. 14A, Location: Krishnanagar, Batiaghata. Soil series: Bajoa, MHL,
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
J F M A M J J A S O N D
2001
2002
2003
2004
2005
20062007
2008
2009
Peak soil salinity
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Outputs & Progress - SRDIMaps of various soil parameters
2009SoilSalin
itymap(tobeupdatedin2012
)
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Metadata inventory and reports on coastal polder activities
Provision of metadata of available information
Information on water level, recharge, constraints, gates, etc.
Other stations measuring salinity and water flow?
Surface and ground water assessments
Coastal Embankment Improvement Project report
Future activities - BWDB
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Provision of transport network and census data Road network map including market locations
Census questionnaire and parameters Census data, socio-economic data at Mouza level Description of ongoing LGED activities and development plans
for polders and coastal region
Future activities - LGED
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Land use mapping/salinity mapping and domain methodology Continue the monitoring of soil salinity in 65 stations
Detailed soil survey in April 2012 Provision of the methodology for the detailed salinity maps
2009/12 Provision of rice area map for 2004 (pre cyclone assessment) Provision of maps of land types and associates Provision of soil texture map Acquisition of district level crop calendars
Future activities - SRDI
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Hydrology, Water level and salinity mapping Continue the monitoring of water salinity and level
Maps of maximum water salinity and its interpolation methods Water salinity threshold maps showing the date of start and end
dates of 1 ppt and 4 ppt for 2010, 11 and 12
Minimum and maximum water levels and maps assessingpotentials of gravity irrigation and drainage for three polders Acquisition of metrological dataTemp, Rainfall, Humidity and
evaporation Acquisition of rainfall days data for December 2008 to May 2009
for correct interpretation of monthly soil salinity measurements
Future activitiesIWM (1)
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Climate change impacts and Scenarios (From G4)Impact of climate change on coastal zoneincrease intemperature, high rainfall..2030-2050 (15-18 months)Scenarios of external hydrological drivers (CC, Upstream flows, SLR)
Future activitiesIWM (2)
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Sharing data/information with Partners Inventory of satellite data
Provision of remote sensing imagery to G1 partners Provision of Bangladesh poverty map and mediums resolution
rice area map to G1 partners
Future activitiesIRRI (1)
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Land use mapping/salinitymapping and domainmethodology
Detailed land covermapping for 2009 and 2012
Development of improvedsoil salinity index/mappingusing remote sensing.Testing and validated with
SRDI data Draft of methodology for
extrapolation domains
Future activitiesIRRI (2)
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Conclusions
Much progresses have been made, despite of 12-month delayin recruitment of a GIS and land use modelling specialist at theIRRI Dhaka office.
Position should be filled in May/June 2012
This has delayed outputs by ~ 6 months . Revised G1milestones and timelines have been submitted to CPWF
By the end of 2012: Complete WP1 and WP2 and start on WP3
G1
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G1 BWDB IRRI IWM LGED - SRDI
BWDB IRRI IWM LGED SRDI
Thank you
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Reflections on GBDC At the start of the GBDC we postulated that cropping intensity
& diversification in polders 3, 30, 43/2/F can be greatlyenhanced. Our work in the last year strengthen our belief:there is huge potential
We are making good progress on the soft side of thecommunity-based water management, but software alonecan not work if the hard ware is out of dateand it iscompletely out of date. Rehabitation is not adequate, theyneed redesigned according to theirnew roles.
Roles of the polder have to be revised to serve the newcropping systems, which varies accordingly the polderssome cases opposite to their original functions e.g. intakesaline water instead of salinity control
The real possibility of increasing cropping intensity anddiversification rest on having adequate development funds torevamp the water management of the polders. Great to seemany on going/being planned work by LEGD, BWDB on the
poldersquestion: how we can join hand with these GO in
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Reflections on GBDC zonation (at regional level and within polders) is
fundamental in solving conflicts between agriculture andbrackish water aquaculture as well as between high landand lowland. zonation/land use maps to be developed byGBDC will be useful for the GOB coastal zone planning anddevelopment.
How do we incorporate community-based management into the zoning/land use mapping?
Preliminary results from homestead survey reveal theimportance of homestead economy (homestead area ~ 20%of total land area) we may have to focus more onhomestead, especially on livelihood of the tenants??