desire project study site 9 - tunisia
DESCRIPTION
DESIRE Project Study site 9 - Tunisia. Symposium ‘Assessing Benefits of SLM – key for success’ Rabat, Morocco: 19 October 2009. Mapping the spatial assessment of degradation and conservation. H. Taamallah, M. Ouessar, I. Enneb, M. Chniter IRA – Médenine CRDA - Médenine. Study Area - PowerPoint PPT PresentationTRANSCRIPT
DESIRE ProjectStudy site 9 - Tunisia
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Mapping the spatial assessment Mapping the spatial assessment of degradation and conservationof degradation and conservation
H. Taamallah, M. Ouessar, I. Enneb, M. ChniterH. Taamallah, M. Ouessar, I. Enneb, M. Chniter
IRA – MédenineIRA – Médenine
CRDA - MédenineCRDA - Médenine
Symposium ‘Assessing Benefits of SLM – key for success’
Rabat, Morocco: 19 October 2009
Study Area
The study area covers the watersheds of wadi Oum Zessar and wadi El Halouf which are localized in southeast Tunisia (north west of the city of Médenine). Administratively, it belongs to three counties (Médenine Nord, Sidi Maklouf and Béni Khédache) of the province of Médenine.
Land use system (LUS)Land use system (LUS)
Mapping unitsMapping units
Cereal agricultureCereal agriculture
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Cereals Agriculture
1 0
Mapping unit ID: (ZK-BKO2)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Et Ed 5% 2 2 f4, n4 p/ t P1(-2), E4(-2)
Pc 5% 1 1 s1 p / t P1(-2), E4(-2)
Bc 40% 3 2 f4, s4 p/ t P1(-2), E4(-2)
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
* To reduce vegetation cover degradation through the use of means for sand fixation and soil and water conservation (CES)
* To use practices to restore the vegetation cover and to reduce soil degradation
Mapping unit ID: (ZK-BKO2)
Conservation (step 4)
a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effecti
veness
h)Effect.
Trendi) Impact
on ESS
j)Period
k)Ref
QT
Sand stabilisat-ion
SD S8 M1 M/P 5% Ed Bc
Et 3 0
P1(+2)
E4 (1)
1950
Tabia WH S3 M/P 10% Ed Bc
Et Bc3 0
P2 (1)
E1 (1)
1950
Agriculture behind jessourAgriculture behind jessour
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Agriculture behind jessour
0 0
Mapping unit ID: (ZK-BKO3 / ZK-BKE4 / ZK-MN3 / ZK-SM1)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Wg Wt 10% 2 1 s3, n3 l P2 (-1), E2(-1)
Ha Hs 10% 2 2 n1/ n6 P2(-1), E4(-1)
Bc 15% 3 2 n6 E8 (-1),
Mapping unit ID: (ZK-BKO3 / ZK-BKE4 / ZK-MN3 / ZK-SM1)
Conservation (step 4)
a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effectiveness
h)Effect.
Trendi) Impact
on ESS
j)Period
k)Ref
QT
Jessour WH S3 A1 M/P 60% Wg Ha Bc 3 1 P2(2)
E2 (2)
E8(2)
1900
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
* To intensify water and soil conservation (CES) works.
*To ensure maintenance and to safeguard CES works (especially after the floods and exceptional rains).
Plain rangelandsPlain rangelands
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Plain rangelands -2 -2
Mapping unit ID: (ZK-BKO4 / ZK-BKE3 / ZK-MN4 / ZK-SM6)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Wt Wg Wr 15% 2 3 s1, g1/n6 l/P P1 (-2), E2(-2) E8(-2)
Et Ed 15% 2 3 f6/ g1/n6 l/P P1 (-2), E2(-2) E8(-2)
Bc B q 10% 3 3 n6 l/P E8 (-2), E2(-2), P1(-2)
Mapping unit ID: (ZK-BKO4 / ZK-BKE3 / ZK-MN4 / ZK-SM6)
Conservation (step 4)
a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effecti
veness
h)Effect
Trendi) Impact
on ESS
j)Period
k)Ref
QT
Fencing
Resting GR M5 M/P 5% Wt Et 4 1 E2 (2)
E8(2)
1957 TUN11
Afforestation
vs V2 M/P 5% Et Bc 4 1 E2 (2)
E8(2)
1957 TUN11
Sand dune fixation
Sd S8 M/P 5% Et 4 1 E2 (2)
E8(2)
1957 TUN11
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
* To use practices for vegetation cover restoration, reduction of livestock, while limiting cultivation extension
* To consolidate / Land protection works.
Mountain rangelandsMountain rangelands
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Moutain range lands
-2 -2
Mapping unit ID: (ZK-BKO5 / ZK-BKE2 / ZK-MN2 / ZK-SM2)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Wg Wt 15% 3 3 n3 t /P P1 (-2)
Ha 10% 2 2 n3 ,n6 P/h E2(-2)
Bc Bh 15% 3 3 g1 P/t/h E8 (-3)
Mapping unit ID: (ZK-BKO5 / ZK-BKE2 / ZK-MN2 / ZK-SM2)
Conservation (step 4)
a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effectiveness
h) Effect.
Trend
i) Impact
on ESS
j)Period
k) Ref
QT
Fencing
Resting GR V2 M/P 5% Bc Bt 4 1 E8 (3)
P1(2)
1960 TUN11
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
•To extend setting fenced areas
* To reduce livestock number.
Dahar rangelandsDahar rangelands
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Dahar rangelands 0 0
Mapping unit ID: (ZK-BKO1)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Et Ed 15% 3 3 g1/ l2/ n4 t /O P1 (-1) / E8(-2)
Cn 15% 2 2 e2 t /O E8(-2)
Wt 10% 3 3 n3 t /O E8 (-2)
Mapping unit ID: (ZK-BKO1)
Conservation (step 4)
a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effecti
veness
h)Effect.
Trendi) Impact
on ESS
j)Period
k)Ref
QT
Pallissade Sd S8 M/P 3% Et Ed 3 1 P1 (1)
E8(2)
1980 TUN11
Fencing
RestingGR M5 M/P 3% Et Ed Cn 3 1
E8(2)
1980 TUN11
Afforestation
VS V1 M/P 3% Et Wt 2 1 E8(2) 1980 TUN11
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
• reduce wind erosion phenomenon and livestock number,
• Watering points/sources multiplication
* To Improve fencing and resting works
* Expansion of plantations / Pallissade
Agriculture behind tabiasAgriculture behind tabias
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Agriculture behind Tabia
2 2
Mapping unit ID: (ZK-BKE1 / ZK-MN1/ ZK-SM4)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Wt Wd 5% 2 -2 n2 / n4 l E2(-1)
Mapping unit ID: (ZK-BKE1 / ZK-MN1/ ZK-SM4)
Conservation (step 4)a)
Name
b) Group
c)
Measure
d) Purpose
e) % of
area
f)Degration
addressedg)Effecti
veness
h)Effect.
Trendi) Impact
on ESS
j)Period
k)Ref
QT
Tabia Tr / Wh / Sc
S3 A1 M/P 30% Wt Wg 4 1 P1 (3), E2(3)
S5(3)
1960 TUN11
GabionRecharge
SA
PR
Sc
S6 M/P 20% Wt Wg 4 1 P1 (3), E2(3)
S5(3)
1960 TUN11
Drg stones
ridges
RH
Sc
S2 A1 M/P 10% Wt Wg 4 1 P1 (3), E2(3)
S5(3)
1960
Gabionspreading
WH
PR
Sc
S6 M/P 10% Wt Wg 4 1 P1 (3), E2(3)
S5(3)
1960 TUN11
Expert recommendation (Step 5)
Expert
recommendation Remarks and additional information
M
P
* Consolidation and reservation of plantation
* watershed integrated management
Halophyte rangelandsHalophyte rangelands
Land use system (step2)
Administrative
or other unit
Land use system
(LUS)
a)Area
Trend
b) Intensity
Trend
District xy Halophyste
rangelands -1 1
Mapping unit ID: (ZK-SM6)
Land degradation (step 3)
a)Type
i ii iii
b)
Extent
c)
Degree
d)
Rate
f) Direct
cause
e) Indirect
cause
g) Impact on
Eco System.
Services
Cs Pw 50% 3 1 n5O: high evaporation
Runoff reduced
E1(-1)
Bc
35% 2 1 e2 h E4 (-2)
Expert recommendation (Step 5)Expert
recommendation Remarks and additional information
M/P
• Grazing level control,
• Improve water runoff
• wood collection reduction
To be continued …. On line mapping