Cooking Fuels and Jatropha in Northern TZ
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Cooking Fuels and Jatropha in Northern TZ Jan 2011
description
Cooking Fuels and Jatropha in Northern TZ. Jan 2011. Cooking fuels. Village averages (n=48 villages). Cooking stoves. Village averages (n=48 villages). Correlation between charcoal & open stoves. Who grows jatropha ?. >50% >40% >30% >20% >10% >0% 0 %. - PowerPoint PPT Presentation
Transcript of Cooking Fuels and Jatropha in Northern TZ
Cooking Fuels and Jatropha in Northern TZ
Jan 2011
Cooking fuels
Minimum Median MaximumCharcoal 0 1.69 33.33Wood 63.33 96.67 100Crop/straw/dung 0 0 4.0Kerosene/Coal/Elect 0 0 5.2
Village averages (n=48 villages)
Cooking stoves
Minimum Median MaximumOpen fire 66.67 96.67 100Open stove 0 1.67 31.67Closed stove 0 0 4.00
Village averages (n=48 villages)
Correlation between charcoal & open stoves
0 5 10 15 20 25 30 350%
5%
10%
15%
20%
25%
30%
35%
R² = 0.960499742706393
% using charcoal
% u
sin
g c
oo
k s
tov
e
>50%
>40%
>30%>20%>10%>0%0%
Who grows jatropha?
0 0.1 0.2 0.3 0.4 0.5 0.6 0.70
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
R² = 0.453095488922258
Grow Jatropha
Aw
are
of
Ja
tro
ph
a
Awareness of jatropha reaches a peak in villages where at least 15% grow jatropha
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.00
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
R² = 0.172839931163607
R² = 0.206088051020692
Prop. Sukuma
Ja
tro
ph
a
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.80
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
R² = 0.116504702290727
R² = 0.354076589707314
Prop. completing primary school
Ja
tro
ph
aAwarenessGrow
• Awareness of jatropha is highest in better-educated villages and in Sukuma villages
• Sukuma villages also grow more jatropha.
0 50 100 150 200 250 300 350 400 450 5000
0.1
0.2
0.3
0.4
0.5
0.6
0.7
R² = 0.273810034259369
Cotton
Gro
w J
atr
op
ha
0 1 2 3 4 5 6 70
0.1
0.2
0.3
0.4
0.5
0.6
0.7
R² = 0.185007010423282
Wealth
Ja
tro
ph
a
0 2 4 6 8 10 12 14 16 180
0.1
0.2
0.3
0.4
0.5
0.6
0.7
R² = 0.236985632509669
Acres cultivated
Ja
tro
ph
a
30 40 50 60 70 80 90 1000
0.1
0.2
0.3
0.4
0.5
0.6
0.7
R² = 0.171979225551797
Rainfall
Ja
tro
ph
a
Jatropha is grown most in villages with moderate rainfall, wealth, farm size and cotton production
-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.150
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
R² = 0.128899270628376
R² = 0.544327991781633
NDVI
Ja
tro
ph
a
0 0.1 0.2 0.3 0.4 0.5 0.6 0.70
1
2
3
4
R² = 0.111173576548467
Grow Jatropha
Hu
ng
er
Ind
ex Widespread jatropha
production does not increase household hunger
Villages with low awareness of jatropha and slightly lower levels of jatropha production have lost the most vegetation over the past 10 yrs
