Water Management in sub-tropical climate in Haiti Cul De Sac from the Soil Perspective Zamir Libohova 1 , Thomas Reinsch 2 Charles Kome 2 , Paul Reich 2 , Tony Rolfes 3 , Nathan Jones 4 , Steve Monteith 1 , Manuel Matos 5 , Linda Scheffe 1 , Susan Southard 1 , Rich Ferguson 1 , Lillian Woods 6 and Kim Green 2 1 USDA-NRCS-National Soil Survey Center, 100 Centennial Mall North Federal Building, Room 152, Lincoln, NE 68508-3866 2 USDA-NRCS - World Soil Resources, 3 USDA-NRCS Pacific Islands Area, 300 Ala Moana Blvd. Room 4-118, Honolulu, HI 96850-0050 4 USDA-NRCS State Soil Scientist, 200 4 th Street, Huron, SD 57350 5 USDA-NRCS Major Land Resources Area Soil Survey Leader, Mayaguez, Puerto Rico Soil Survey Office, 2200 Pedro Albizu Campos Avenue, Mayaguez, PR 00680 République d’Haïti Repiblik d’Ayiti
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Water Management in sub-tropical climate in Haiti Cul De Sac from the Soil Perspective
Zamir Libohova1, Thomas Reinsch2 Charles Kome2, Paul Reich2, Tony Rolfes3, Nathan Jones4, Steve Monteith1, Manuel Matos5, Linda Scheffe1, Susan Southard1, Rich
Ferguson1, Lillian Woods6 and Kim Green2
1 USDA-NRCS-National Soil Survey Center, 100 Centennial Mall NorthFederal Building, Room 152, Lincoln, NE 68508-3866 2 USDA-NRCS - World Soil Resources, 3 USDA-NRCS Pacific Islands Area, 300 Ala Moana Blvd. Room 4-118, Honolulu, HI 96850-0050 4 USDA-NRCS State Soil Scientist, 200 4th Street, Huron, SD 57350 5 USDA-NRCS Major Land Resources Area Soil Survey Leader, Mayaguez, Puerto Rico Soil Survey Office, 2200 Pedro Albizu Campos Avenue, Mayaguez, PR 006806 USDA-NRCS, International Programs Division, 5601 Sunnyside Ave. Beltsville, MD 20705
République d’HaïtiRepiblik d’Ayiti
Physiographic Setting of Cul de Sac
• 70 % flat with moderate- to high-density agriculture. Elevation varies from 52-130m over several kilometers with a downward gradient from southwest to northeast towards brackish Lake Azuei and Calman.
• 30 % mixture of limestone sedimentary rocks that crop out and overlaid by dissected calcareous alluvial deposits, dominated by savanna type vegetation. Elevations ranges from 130-330m.
• The area is confined by the Grey River to the west and White River to the east.
Grey River
White River
République d’HaïtiRepiblik d’Ayiti
The annual mean temperature in the Cul- de Sac Valley is 26.2°C;
The mean annual precipitation is 740 mm;
Falling in two rainy seasons.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec0
50
100
150
200
250
0
5
10
15
20
25
30
Cul de Sac Mean Monthly PrecipitationHaiti Mean Monthly PrecipitationCul de Sac Mean MonthlyTemperatureHaiti Mean Monthly Temperature
Month
Prec
ipit
ation
(mm
)
Tem
pera
ture
(0C)
République d’HaïtiRepiblik d’Ayiti
April–June Oct.–Nov.
Climate of Cul de Sac
When it Rains it Pours
République d’HaïtiRepiblik d’Ayiti
République d’HaïtiRepiblik d’Ayiti
Soil Moisture and Temperature Regime
of Cul de Sac
Lake Calman
North
North
South
South
Most common limitations
Restriction Criteria Restriction Type SymbolSlopes 1 to 15% Landscape Position LPDepth to Cemented Pan 50 to 150cm
Limiting Layers LLDepth to Hard Bedrock 50 to 150cmDepth to Soft Bedrock 50 to 150cmDepth to Water Table 60-90cm, in growing seasonKsat Minimum; 0.14 to 1.4um/sec; 0 to 50cm
Water Avaiability AWSeepage, Ksat Max; 14 to 44um/sec, 0-150cm Ponding Duration in Growing SeasonFlooding > Rare FrequencyDroughty (7.5 to 18.0 AWC) 0 to 150cm Fragments >75mm, 25 to 35% by WTD Av. 0-40" Physical Barriers PBLarge Surface Stones > 250mm (.1 to 5%) CaCO3 Maximum <50%; 25 to 100cm
Chemical Barriers CBExcess Sodium, SAR 6 TO 20; 0-150cmSalinity => 4 mmhos/cm Somewhat Limiting Soil Reaction (pH 3.5 to 5.0); 0 to 100cm Soil Reaction (pH > 9.0); 0 to 100cm
Site 12 – Sha-Sha Site 13 - Ganthier Site 11 - Delamn