Soil Erosion Control

Using halophytic plants to helps coastal landowners preventing soil erosion problem.

The Natural Resources and Conservation Service (NRCS), the PRWRERI, and The Boquerón Wildlife Refuge (BWR-PRDNR) are working in the establishment of a demonstration field in salt tolerant vegetative materials as a conservation buffer in salt flats.

The United States Coral Reef Task Force (USCRTF) identified the urgent need for local action to increase the protection to coral reef from land and marine pollution, unsustainable fishing, development, and other stressors detrimental coral health. Efforts are already in place by the NRCS to help private landowners with appropriate technical assistance for establishment of conservation practices to guaranteed the economy and sustainability of their operations.

Three species of plants will be tested on salt flat field at the BWR. Different parameters will be collected from the site to analyse the erosion prevention capacity of those species.

New Projects on PRWRERI

PRWRERI and JBNERR Working Together

The PRWRERI and the Jobos Bay National Estuarine Research Reserve (JBNERR) have begun the project "Design for Overland Flow at Jobos Bay National Estuarine Research Reserve".

The JBNERR is the second largest estuarine area in Puerto Rico and is one of 26 others estuaries area under the National Estuarine Research System designated by the National Oceanographic and Atmospheric Administration. The Reserve is located between Salinas and Guayama at southeast of Puerto Rico and it covers an area of 2,833 ac (acres) of mangrove forest and diverse habitats.

During the last two decades the JBNERR presents an increment in the mortality index of mangroves due agricultural activities. There are a series of agricultural channels that are discharging on the estuary,affecting the water quality and causing mortality of flora. This research propose a hydraulic design to intersect an open channel flow, reduce surface erosion and improve water quality at the northeast of JBNERR. This project will be focused mainly on hydrologic and hydraulic design conditions using PCSWMM model and geographic information system (GIS) tools.

River Mechanics Seminar at DRNA


The PRWRERI Personnel Educated on River Mechanics

On September 8th and 9th of 2011, Dr. Walter F. Silva taught a group of 24 people from the Department of Natural Resources of Puerto Rico a seminar titled "River Mechanics."

The seminar was intended to provide the essential skills to understand the mechanisms that alter the geomorphological conditions of the rivers and their effects on the river system. These principles will be useful in the day to day decision process.

The topics discussed were:
  1. Erosion / Sedimentation and River Mechanics
  2. Balance and Stability of Alluvial Rivers
  3. Concepts of fluvial geomorphology
  4. Sediment Transport Concepts
  5. Incipient movement
  6. Stable channels
  7. Bed forms
  8. Suspended sediment
  9. Bottom sediment
  10. Stability analysis
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