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MBRS Watershed Hydrology

MBRS Watershed Hydrology. Yucatán Peninsula & Río Hondo. Yucután Peninsula. Countries: Mexico (Quintana Roo State) State/Watershed Area: 50,212 km2 Average Discharge: 7,700 Mm3/year Average Annual Rainfall: 1,258 mm.

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MBRS Watershed Hydrology

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  1. MBRS Watershed Hydrology Yucatán Peninsula & Río Hondo

  2. Yucután Peninsula • Countries: Mexico (Quintana Roo State) • State/Watershed Area: 50,212 km2 • Average Discharge: 7,700 Mm3/year • Average Annual Rainfall:1,258 mm Source: “Sinopsis Geohidrologia del Estado de Quintana Roo, Secretaria de Agricultura y Recursos Hidraulicos, Comision Nacional de Agua CAN, 1988 Rainfall Source: Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CNA.

  3. Quintana Roo Department: Monthly Precipitation Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CNA.

  4. Quintana Roo: Water Use/ Availability Source: Vorosmarty, C. J., P. Green, J. Salisbury and R. B. Lammers. 2000. Global water resources: vulnerability from climate change and population growth, Science, 289: 284-288.

  5. Yucatán: Water Quality - Groundwater • 2002: national water quality monitoring network was redesigned: • Primary network = 362 permanent stations: 205 surface, 44 coastal, 113 aquifers. • Secondary network = 276 mobile stations: 231 surface, 17 coastal, and 28 aquifers. • Reference Network = 104 additional stations explicitly for groundwater. • Aquifers in Quintana Roo Dept. and Yucatan State: not overexploited, no significant salt-water intrusion, soil salinization or brackish groundwater Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 44, p. 35.

  6. Yucatán: Water Quality - Surface Water • Biochemical Oxygen Demand (BOD): • 100% of Yucatan peninsula stations show “unpolluted” with BOD less than 6mg/L (typical of natural waters) • Chemical Oxygen Demand (COD): • 86.6% of Yucatan stations show unpolluted COD (less than 20 mg/L, typical of natural waters) • 6.7% show “good quality” (20mg/L<X<100mg/L, water with organic matter) • 6.7% show “Indications of pollution” (100mg/L<X<250mg/L, presence of wastewater, mostly urban) Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 44.

  7. Findings & Stresses: Sufficient water quantity to meet needs Summary of water quality: presently there are minimal water quality problems Potential exists for future water quality problem from point and non-point source threats Climate change? Interventions: Continue and expand water quantity and quality monitoring programs Manage land use to respond to potential water quality threats Ensure effective management of wastewater Yucatán: Conclusions

  8. Río Hondo • Countries: Mexico, Belize, Guatemala • Watershed Area: 14,708 km^2 • Mexico: 8,825 km^2 • Belize: 3,010 km^2 • Guatemala: 2,873 km^2 • Average Annual Precipitation: 1,574 mm • Length: 205 km • Average Discharge: N/A Source: Statistics: Water in Mexico, Edición 2004, Unified System for Basic Data on Water (SUIBA), SEMARNAT, CAN, p. 35. Photo source: http://www.elbalero.gob.mx/explora/images/quintana/qroopaisa.gif

  9. Río Hondo: Water Use/ Availability Source: Vorosmarty, C. J., P. Green, J. Salisbury and R. B. Lammers. 2000. Global water resources: vulnerability from climate change and population growth, Science, 289: 284-288.

  10. Station 1a Gualan Puente Orellana Water Quality Stations Río Hondo: -Station 1a Río Motagua: -Gualán -Puente Orellana

  11. Río Hondo: Water Quality, 2004 Dissolved Oxygen Saturation (%) Dissolved Oxygen (mg/L) Source: Monitoreo De La Contaminación Marina En La Bahía De Chetumal, Reporte Anual 2003 and 2004, Secretaria De Marina - Armada De Mexico, Sector Naval Yukalpeten, Direccion General Adjunta De Oceanografia, Estacion De Investigacion Oceanografica Progreso, Yuc.

  12. Río Hondo: Water Quality 2 2004 Phosphate – P Source: Monitoreo De La Contaminación Marina En La Bahía De Chetumal, Reporte Anual 2003 and 2004, Secretaria De Marina - Armada De Mexico, Sector Naval Yukalpeten, Direccion General Adjunta De Oceanografia, Estacion De Investigacion Oceanografica Progreso, Yuc.

  13. Study Objectives - Natural Framework: Climate, Geology, Flora and Fauna Surface and Subterranean Hydrography Water Quality Extreme Meteorological Phenomena State of water-related soil degradation Study Objectives - Additional Frameworks: Socioeconomic and Demographic Legal and Institutional Water Sustainability Diagnostic for Sustainable Water Management in the International Río Hondo Watershed, Mexico-Belize, 2025 Source: Terminos de Referencia para la Realización del Estudio “Diagnóstico para el Manejo Sustenable del Agua en la Cuenca Internacional del Rio Hondo, México-Belice, al Año 2025, Comisión Nacional del Agua, Gobierno del Estado de Quintana Roo, Mayo 2004

  14. Findings & Stresses: Sufficient water quantity to meet needs Currently a significant lack of both quantity and water quality data Potential exists for future water quality problems from point and non-point source threats Natural hydrology: peak rainfall conducive to high levels of erosion Climate Change? Interventions: Develop effective water quantity and quality monitoring programs Manage land use to respond to potential water quality threats Ensure effective management of wastewater Improve coordination for transboundary watershed management Río Hondo: Conclusions

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