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DESIRE Project Study site 9 - Tunisia.. Mapping the spatial assessment of degradation and conservation H. Taamallah, M. Ouessar, I. Enneb, M. Chniter IRA.

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Presentation on theme: "DESIRE Project Study site 9 - Tunisia.. Mapping the spatial assessment of degradation and conservation H. Taamallah, M. Ouessar, I. Enneb, M. Chniter IRA."— Presentation transcript:

1 DESIRE Project Study site 9 - Tunisia.. Mapping the spatial assessment of degradation and conservation H. Taamallah, M. Ouessar, I. Enneb, M. Chniter IRA – Médenine CRDA - Médenine Symposium ‘Assessing Benefits of SLM – key for success’ Rabat, Morocco: 19 October 2009

2 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.

3 Land use system (LUS)

4 Mapping units

5 Cereal agriculture

6 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xyCereals Agriculture 10

7 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 E t E d 5%22f 4, n 4 p/ tP 1 (-2), E 4 (-2) PcPc 5%11s1s1 p / tP 1 (-2), E 4 (-2) BcBc 40%32f 4, s 4 p/ tP 1 (-2), E 4 (-2)

8 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP * 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

9 Mapping unit ID: (ZK-BKO2) Conservation (step 4) a) Name b) Group c) Measure d) Purpo se e) % of area f)Degration addressed g)Effecti veness h)Effect. Trend i) Impact on ESS j)Perio d k)Ref QT Sand stabilisat- ion SDS 8 M 1 M/P5%E d B c E t 30 P 1 (+2) E 4 (1) 1950 Tabia WHS3S3 M/P10%E d B c E t B c 30 P 2 (1) E 1 (1) 1950

10 Agriculture behind jessour

11 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Agriculture behind jessour 00

12 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 W g W t 10%21s 3, n 3 lP 2 (-1), E 2 (-1) H a H s 10%22n 1 / n 6 P 2 (-1), E 4 (-1) BcBc 15%32n6n6 E 8 (-1),

13 Mapping unit ID: (ZK-BKO3 / ZK-BKE4 / ZK-MN3 / ZK-SM1) Conservation (step 4) a) Name b) Group c) Measure d) Purpos e e) % of area f)Degration addressed g)Effec tivenes s h)Effect. Trend i) Impact on ESS j)Peri od k)Ref QT Jessour WH S 3 A 1 M/P60% W g H a B c 31P 2 (2) E 2 (2) E 8 (2) 1900

14 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP * To intensify water and soil conservation (CES) works. *To ensure maintenance and to safeguard CES works (especially after the floods and exceptional rains).

15 Plain rangelands

16 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Plain rangelands -2

17 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 W t W g W r 15%23s 1, g 1 /n 6 l/PP 1 (-2), E 2 (-2) E 8 (-2) E t E d 15%23f 6 / g 1 /n 6 l/PP 1 (-2), E 2 (-2) E 8 (-2) B c B q 10%33 n 6 l/PE 8 (-2), E 2 (-2), P 1 (-2)

18 Mapping unit ID: (ZK-BKO4 / ZK-BKE3 / ZK-MN4 / ZK-SM6) Conservation (step 4) a) Name b) Group c) Measure d) Purpos e e) % of area f)Degration addressed g)Effec ti veness h)Effect Trend i) Impact on ESS j)Peri od k)Ref QT Fencing Resting GR M5M5 M/P5% W t E t 41E 2 (2) E 8 (2) 1957TUN11 Afforest ation vs V2M/P5% E t Bc 41E 2 (2) E 8 (2) 1957TUN11 Sand dune fixation SdS8S8 M/P5% EtEt 41E 2 (2) E 8 (2) 1957TUN11

19 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP * To use practices for vegetation cover restoration, reduction of livestock, while limiting cultivation extension * To consolidate / Land protection works.

20 Mountain rangelands

21 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Moutain range lands -2

22 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 W g W t 15%33n3n3 t /PP 1 (-2) HaHa 10%22n 3,n 6 P/hE 2 (-2) B c B h 15%33g1g1 P/t/hE 8 (-3)

23 Mapping unit ID: (ZK-BKO5 / ZK-BKE2 / ZK-MN2 / ZK-SM2) Conservation (step 4) a) Name b) Group c) Measure d) Purpos e e) % of area f)Degration addressed g)Effecti veness h) Effect. Trend i) Impact on ESS j)Peri od k) Ref QT Fencing Resting GR V2V2 M/P5%B c B t 41E 8 (3) P1(2) 1960TUN11

24 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP To extend setting fenced areas * To reduce livestock number.

25 Dahar rangelands

26 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Dahar rangelands 00

27 Mapping unit ID: (ZK-BKO1) Land degradation (step 3) a)Type i ii iii b) Extent c) Degree d) Rate f) Direct cause e) Indirec t cause g) Impact on Eco System. Services E t E d 15%33g 1 / l 2 / n 4 t /OP 1 (-1) / E8(-2) CnCn 15%22e2e2 t /OE 8 (-2) WtWt 10%33 n 3 t /OE 8 (-2)

28 Mapping unit ID: (ZK-BKO1) Conservation (step 4) a) Name b) Group c) Measure d) Purpos e e) % of area f)Degration addressed g)Effec ti veness h)Effect. Trend i) Impact on ESS j)Per iod k)Ref QT Pallissade SdS8S8 M/P3% E t E d 31P 1 (1) E 8 (2) 1980TUN11 Fencing Resting GRM5M5 M/P3% E t E d C n 31 E 8 (2) 1980TUN11 Afforestati on VSV1V1 M/P3% E t W t 21E 8 (2) 1980TUN11

29 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP reduce wind erosion phenomenon and livestock number, Watering points/sources multiplication * To Improve fencing and resting works * Expansion of plantations / Pallissade

30 Agriculture behind tabias

31 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Agriculture behind Tabia 22

32 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 W t W d 5%2-2n 2 / n 4 lE 2 (-1)

33 Mapping unit ID: (ZK-BKE1 / ZK-MN1/ ZK-SM4) Conservation (step 4) a) Name b) Group c) Measure d) Purpos e e) % of area f)Degration addressed g)Effec ti veness h)Effect. Trend i) Impact on ESS j)Peri od k)Ref QT Tabia Tr / Wh / Sc S 3 A1M/P30% W t W g 41 P 1 (3), E2(3) S 5 (3) 1960TUN1 1 Gabion Recharge SA PR Sc S6S6 M/P20% W t W g 41 P 1 (3), E2(3) S 5 (3) 1960TUN1 1 Drg stones ridges RH Sc S 2 A1M/P10% W t W g 41 P 1 (3), E2(3) S 5 (3) 1960 Gabion spreading WH PR Sc S6S6 M/P10% W t W g 41 P 1 (3), E2(3) S 5 (3) 1960TUN1 1

34 Expert recommendation (Step 5) Expert recommendation Remarks and additional information MPMP * Consolidation and reservation of plantation * watershed integrated management

35 Halophyte rangelands

36 Land use system (step2) Administrative or other unit Land use system (LUS) a)Area Trend b) Intensity Trend District xy Halophyste rangelands 1

37 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 P w 50%31n5n5 O: high evaporation Runoff reduced E1(-1) Bc 35%21e2e2 hE 4 (-2)

38 Expert recommendation (Step 5) Expert recommendation Remarks and additional information M/P Grazing level control, Improve water runoff wood collection reduction

39

40 To be continued …. On line mapping


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