by b sitaula, z kimbi and ja matovelo
DESCRIPTION
Possible synergies with proposed triangular NOMA master study and developing new idea of research collaboration. By B Sitaula, Z Kimbi and JA Matovelo. Norad’s Programme for Master Studies (NOMA). AIM OF NOMA PROGRAMME. - PowerPoint PPT PresentationTRANSCRIPT
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ByB Sitaula, Z Kimbi and JA Matovelo
Possible synergies with proposed triangular NOMA master study and developing new idea of research collaboration
![Page 2: By B Sitaula, Z Kimbi and JA Matovelo](https://reader033.vdocuments.us/reader033/viewer/2022061416/56815b15550346895dc8c3f7/html5/thumbnails/2.jpg)
Norad’s Programme for Master Studies (NOMA)
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AIM OF NOMA PROGRAMME
• The overall aim of the NOMA programme is to contribute to the education of staff in all sectors in Norways’s main partner countries and other selected countries through building capacity at the Master level in higher education institutions in the South
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Objectives of NOMA
• Collaboration North – South (and south)• Capacity strengthening in the South• New Master programme in the South• Relevance – need of the society in the South• Gender equity• Include development perspectives in
Northern universities
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Eligible academic fields
• Education• Environment, economic development and trade• Gender• Governance, democratic development human
rights and migration• Health, HIV/AIDS• Oil and energy• Peace and conflict resolution
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Eligible institutions
• Higher Education Institutions in the South that are fully recognised/accredited by the national authorities in the country where they have their campus
• Norwegian institutions which are members of the Norwegian Association of Higher Education Institutions (UHR) in Norway and have accredited Master programmes through NOKUT
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Developing a Triangular Master's Programme in International Environmental Studies & Sustainable Resource Utilisation
• Develop and implement a Master's degree programme for capacity building in global change science for adaptive management of natural resources in Africa and Asia, and addressing the recent development in global change scenario.
• Promote South-South collaboration in higher education through support from the North
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Project Features
• Triangular project: UMB, KU, and SUA• International MSc programme to be run at KU• Students from Tanzania and Nepal • Residential program at Dhulikhel campus• Cohorts of 15 students only• 2 cohorts to be completed within project cycle
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New ideas of reserach collaboration
• Land use change and forest/soil restoration effects on carbon pools and fluxes in selected sites in Tanzania: a collaborative research and capacity building programme
• Partners:– UMB– SUA
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OBJECTIVES • The overall objective of the proposed programme is to analyse the
effects of forest restoration and alternative land use on forest and soil carbon sequestration and enhancement of livelihood security of rural communities in Tanzania. The specific objectives are:
• To review the relevant studies on land use and its changes, forest and soil degradation, and, carbon dynamics, greenhouse gas emission in the study area, establishing the relationship between changes in land use, forest and soil degradation, climate gas fluxes and carbon sequestration.
• To demonstrate the effects of forest restoration and alternate land use (e.g., agroforestry with high value medicinal and aromatic plants) on biomass and soil carbon pools and fluxes and their implications for livelihood security, carbon sequestration and climate change.
• To enhance the capacities of the participating institutions for enabling REDD strategy formulation and implementation through quantifying and conducting research in carbon dynamics and managing carbon for increased sequestration contributing to mitigation of climate change.
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Participatory training and capacity building
Reduced C emissions
Better managed resources
Unsustainability
Increased atmospheric carbon and GHGs
Improper LU & mgmt. deforestation, Forest and soil
degradation
Food /livelihood insecurity, adverse socio-economic impacts, increased poverty
Restored forests, inc. C sequestration in vegetative biomass
Improved LU & carbon management, inc. soil C sequestration
Adverse climatic effects, global warming
Droughts, floods, reduced productivity & yields, crop quality decline, increased production risks, uncertainty
Increased income from NTFPs, MAPs, & high value crops, enhanced livelihood & food security, poverty reduced
Population pressures; poor technology choice; ineffective governing policies, legal regime & institutions; lack of technical capacity/knowhow
Alternative LU & management
Policy recommendations & strategy formulation
Sustainable resource use
REDD Strategies
Proposed forest/soil restoration programme implemented
Knowledge synthesis & research
Demonstration plots & baseline survey
Status quo
REDD implemented
Without REDD
Vicious cycle of poverty
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Few examples of Research
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Location of Study area(Mardi Watershed)
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Forest62 %
Grazing5 %
Bari9 %
Khet13 %
Others11 %
Land use pattern of the Mardi Watershed
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Dominant land uses of Mardi watershed
Khet (1810 ha)
Forest (9042 ha)
Bari (1345 ha)
Grazing (722 ha)
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Bari (Maize-millet cropping system in slopping terraces)
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Khet (irrigated rice field)
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Grazing land
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Forest
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SN Land use
Coordinates Altitude Vegetation/Crop rotation
1 Khet N 28º 19.7’ E 83º 53.4’
1120 m Rice-Wheat-Fallow
2 Forest N 28º 19.4’ E 83º 52.4’
1219 m Schima-Castanopsis forest
3 Bari N 28º 19.2’ E 83º 52.3’
1550 m Maize-Millet-Fallow
4 Grazing
N 28º 20.1’ E 83º 51.6’
1966 m Sparse Trees, shrubs and grass
Sampling Site
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Sampling and Analysis
• Incremental soil sampling down to bed rock or to 1 m soil depth (0-10, 10-20, 20-40, 40-60, 60-80, 80-100 cm)
• SOC content• Bulk Density• Gravel and stone content• Aggregate fractionation• CO2 emission
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C-stock = d x BD x C-content x CFst
Where,C-stock (kg/m2)d: depth of horizon (m)BD: bulk density (kg/m3)C-content (g/g)CFst: Correction factor for stoniness and gravel
content; CFst = 1-(%stone +%gravel)/100
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Results
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Depthwise soil organic carbon content in four land use types
0
20
40
60
80
100
120
0 1 2 3 4 5
SOC (%)
Soil
depth
(cm
)Bari
Khet
Forest
Grazing
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0
20
40
60
80
100
120
0.0 0.5 1.0 1.5
BD (g cm-3)
So
il de
pth
(cm
)
KhetBariForestGrazing
Variation in soil bulk density with soil depth
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Stone and Gravel content in the different depths of four land uses
0102030
40506070
10
20
40
60
80
10
0
10
20
40
10
20
40
60
80
10
0
10
20
40
60
Bari Forest Grazing Khet
Land use and soil depth (cm)
Sto
ne a
nd G
rave
l co
nte
nt (
%)
Stone Content Gravel Content
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Depthwise SOC stock at different soil depth on four land use types
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¤722.4 ha*777 59 MT
¤1315.4 ha *211871 MT
¤9041.5 ha*506359 MT
¤1809.6 ha*48051 MT
Bari
Khet
Forest
Grazing
¤Area *C Stock
Distribution of estimated SOC stock among land uses in the watershed
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60 %
6 %
25 %
9 %
Bari
Khet
Forest
Grazing
Distribution of estimated SOC stock among land uses in the watershed
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Comparision of SOC stock at 0-1 m soil depth
Our study SOC Stock (kg C m-2) Bari 13.5 Grazing 10.3 Mardi watershed 11.9 Sombroek 1993
Cambisol 11.7 SE Asia 8.7 World 11.3
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HA/FA ratio in soil as indicator of degree of humification
HA/FA ratio
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Forest soil Grassland Khet Bari
HA
/FA
rat
io
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Example on fluxes of greenhouse gases from land uses
OBJECTIVES• To quantify seasonal fluxes of greenhouse gases CO2, N2O and CH4 in
soil on four different land uses.
• To investigate the fluxes of greenhouse gases in relation to soil, climatic and topographic factors:
- Soil temperature- Rainfall- Altitude - SOC content-Nitrogen input
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MATERIALS AND METHODS
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The experimental site
Mardi Watershed
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Fluxes of greenhouse gases were measured from: Four regular monitoring sites representing 4
dominant land uses (4 replicates on each site)– Rain fed maize and millet (Bari land)– Irrigated rice paddy (Khet land)– Grazing land– Forest land
Two transects along the elevation gradient at 200m interval (4 replicates in each point)
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Location of sampling points along two transects
Transact points
Highest data point 3200m
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Soil pH: 5.25-5.5
Nitrogen: 0.19 % -0.27 %
Bulk density: 0.95-1.10 g\cm3
Texture: Loamy sand
FYM\Compost: 15 t\ha
Crop rotation:Maize-Millet-Fallow
Bari Land
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Soil pH: 6.1-6.9
Nitrogen: 0.06 % -0.08 %
Bulk density: 1.30-1.50 g\cm3
Texture: Sandy loam
Fertilization\Manure: 2.5 t \ha
Crop rotation: Paddy –Wheat or Paddy-fallow
Khet land
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Grazing land Soil pH: 4.5-4.9
Nitrogen: 0.26% -0.67 %
Bulk density: 0.95-1.10 g\cm3
Texture:Sandy loam
Grazing: Free grazing(buffalos, cows and goats, sheep)
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Forest landSoil pH: 4.5-5.1
Nitrogen: 0.29% -0.35%
Bulk density: 0.9-1.10 g\cm3
Texture: Loamy sand
Forest type:Mixed hardwood (Castanopsis indica, Schima wallichii and Alnus nepalensis)
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SN Land use
Coordinates Altitude Vegetation/Crop rotation
1 Khet N 28º 19.7’ E 83º 53.4’
1120 m Rice-Wheat-Fallow
2 Forest N 28º 19.4’ E 83º 52.4’
1219 m Schima-Castanopsis forest
3 Bari N 28º 19.2’ E 83º 52.3’
1550 m Maize-Millet-Fallow
4 Grazing
N 28º 20.1’ E 83º 51.6’
1966 m Sparse Trees, shrubs and grass
Sampling Site
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Gas sampling and analysis
26.5 cm
6.5 cm
Soil cover method was used to collect gas samples.
Gas Chromatography was used to analyse the CO2, N2O and CH4 fluxes
simultaneously ( Sitaula et al.,1992).
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Results
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0
5
10
15
20
25
30
35
Tem
pera
ture
O C
BariGrazingKhetForest
0
200
400
600
800
1000
1200
1400
1600
Date
CO
2 F
lux
(m
g C
O 2 m
-2 h
-1)
BariGrazingKhetForest
Rainfall
0
20
40
60
80
100
120
140
160
1-J
an
1-F
eb
1-M
ar
1-A
pr
1-M
ay
1-J
un
1-J
ul
1-A
ug
1-S
ep
1-O
ct
1-N
ov
1-D
ec
Rain
fall
m
m
m
Variation in CO2 flux (error bar = mean±SE, n=4), temperature and rainfall over a year
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Seasonal accumulated CO2 flux
0
500
1000
1500
2000
2500
3000
3500
Bari Khet Forest Grazing
Land uses
Acc
mu
late
d C
O2 f
lux
(g C
O2 m
-2)
Winter(Dec.-Feb)
Autumn(Sept-Nov.)
Rainy(june-August.)
Spring (Mar.-May)
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0
5
10
15
20
25
30
35
40
45
50
Date
N2O
Flu
x (
µg
N 2O
-N m
-2 h
-1)
BariGrazingKhetForest
Variation in N2O flux (error bar = mean±SE, n=4), temperature and rainfall over a year.
Rainfall
0
20
40
60
80
100
120
140
160
1-J
an
1-F
eb
1-M
ar
1-A
pr
1-M
ay
1-J
un
1-J
ul
1-A
ug
1-S
ep
1-O
ct
1-N
ov
1-D
ec
Rain
fall
(mm
)
m
0
5
10
15
20
25
30
35
Te
mp
era
tureO
C
BariGrazingKhetForest
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Seasonal accumulated N2O flux
0
20
40
60
80
100
120
Bari Khet Forest Grazing
Land Uses
Ac
cm
ula
ted
N2O
flu
x(
mg
N2O
-N m
-2)
Winter(Dec.-Feb)
Autumn(Sept-Nov.)
Rainy(june-August.)
Spring (Mar.-May)
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0
5
10
15
20
25
30
35
Tem
pera
tureO
C
BariGrazingKhetForest
-300
-250
-200
-150
-100
-50
0
50
Date
CH
4 F
lux
( µg
CH
4 m
-2 h
-1)
BariGrazingKhetForest
Variation in CH4 flux (error bar = mean±SE, n=4), temperature and rainfall over a year.
0
20
40
60
80
100
120
140
160
1-J
an
1-F
eb
1-M
ar
1-A
pr
1-M
ay
1-J
un
1-J
ul
1-A
ug
1-S
ep
1-O
ct
1-N
ov
1-D
ec
Rain
fall(m
m)
m
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Seasonal accumulated CH4 uptake
-400.0
-300.0
-200.0
-100.0
0.0
100.0
200.0
300.0
Bari Khet Forest Grazing
Land Uses
Acc
um
ula
ted
CH
4 fl
ux
(mg
CH
4 m
-2)
Winter(Dec.-Feb)
Autumn(Sept-Nov.)
Rainy(june-August.)
Spring (Mar.-May)
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Field fluxes of GHG and soil temperature along the transects with increasing elevation.
0
5
10
15
20
25
30
35
40
45
1000-1400 1400-1800 1800-2200 2200-2600 2600-3000
Elevation (m)
CH
4 Fl
ux (µ
g C
H4
m-2
h-1
)
0
5
10
15
20
25
Soi
l tem
peta
ture
( 0 C
)at 5
cm
dep
th
CH4
Temperature
0
50
100
150
200
250
300
350
1000-1400 1400-1800 1800-2200 2200-2600 2600-3000
Elevation (m)
CO
2 F
lux
(mg
CO
2 m
-2 h
-1)
0
5
10
15
20
25
So
il t
emp
erat
ure
(0 C
) a
t 5
cm
dep
th
CO2 Flux
Temperature 0C
0
1
2
3
4
5
6
1000-1400 1400-1800 1800-2200 2200-2600 2600-3000
Elevation(m)
N2O
Flu
x (
µg
N2O
-N m
-2 h
-1)
0
5
10
15
20
25
So
il t
emp
erat
ure
(0C
) at
5 c
m d
epth
N2O
Temperature
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Net GWP of CH4 and N2O ( g CO2 m-2 y-1) for 20 year time horizon
0
10
20
30
40
50
Bari Khet Grazing Forest
Land uses
Net
GW
P(E
q. g
CO 2
m-2 y
-1)
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Land uses differed in SOC stock in the soil profiles. Cultivation appears to reduce SOC content and C sequestration processes in soil.Natural soils, having higher SOC associated with micro aggregates and higher degree of humification, may have higher C sequestration potentials than cultivated soil.
Take Home Message -I
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Take-Home Message-II
Field fluxes of CO2, N2O and CH4 varied with land uses and over time.
Seasonal variation in greenhouse gases appears relates to variation to climatic factors.
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Take Home Message-II
Forest and grazing lands exhibited net uptake of atmospheric CH4 throughout the year where as cultivated land exhibited both net CH4 uptake and emission.
Significant CH4 emission occurs in khet land during rainy and autumn season.
Altitude-based soil temperature appears to be an important regulating factors for field fluxes of CO2 and N2O.
Based on existing CH4 and N2O fluxes, cultivated land will contribute higher net GWP than forest and grazing land.
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Looking for the fruitful collaboration
THANKS