LCZO -- Stream Suspended Sediment, Streamflow / Discharge, Precipitation -- riverine particulate organic matter export -- Rio Mameyes and Rio Icacos -- (1991-2015)

Authors:

Kathryn E. Clark Robert F. Stallard Martha A. Stallard Alain F. Plante Sheila F. Plante Grizelle Plante William H. McDowell

Owners:

CZO Luquillo CZO National

Type:

Resource

Storage:

The size of this resource is 1.1 KB

Created:

Nov 19, 2019 at 7:14 a.m.

Last updated:

Nov 21, 2019 at 8:08 p.m.

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Abstract

Erosion, transport and deposition of riverine suspended load are pivotal processes in the terrestrial carbon cycle and function of the critical zone. In order to better understand the response of these drivers to changes in land cover and climate, it is critical to characterize these drivers. In montane rivers, such as the Luquillo Mountains, Puerto Rico, extreme storm events erode and transport clastic and organic material from mountain slopes to rivers, dominating annual export. Riverine particulate organic carbon (POC) and particulate nitrogen (PN) exports are not as well understood, especially at high runoff rates. Over 25 years, river POC export was 75±20 tC km-2 yr-1 for Rio Icacos and 22±8 tC km-2 yr-1 for the Mameyes. Caribbean river POC yields were higher in relation to their SS yields, suggesting that these rivers have greater terrestrial OM supply on the landscape to be eroded and transported into rivers, than what is expected based on data for world rivers. Additionally, we determined that 50% of the suspended load flux occurred during extreme rainfall events, spanning just over 2 days a year, but only exporting < 10% of the annual runoff and rainfall. These results emphasize the important role of extreme rainfall events as drivers of POM export from the Luquillo Mountains.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Rio Mameyes, Rio Icacos, Rio Mameyes and Rio Icacos

North Latitude

18.3610°

East Longitude

-65.6921°

South Latitude

18.2267°

West Longitude

-65.8514°

Temporal

Start Date:	01/01/1991
End Date:	12/31/2015

Streets Terrain Satelite

Spatial Extent

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Additional Metadata

Name	Value
czos	Luquillo
czo_id	6026
citation	Clark, K. E., R. Stallard, M. Scholl, A. F. Plante, S. F. Murphy, G. Gonzalez, W. H. McDowell (2017). Extreme storms drive riverine particulate organic matter export from tropical mountians of estern Puerto Rico, HydroShare, http://www.hydroshare.org/resource/bd540b2b97e8428fb3b7c7ae4d2e704a
keywords	rainfall, suspended sediment, hydrology, Luquillo, Puerto Rico, biogeochemistry, particulate organic carbon, extreme events
subtitle	Extreme storms drive riverine particulate organic matter export from tropical mountians of estern Puerto Rico
variables	discharge, SS, POC, PN, rainfall,
disciplines	Biogeochemistry, Hydrology, Climatology / Meteorology

How to Cite

Clark, K. E., R. F. Stallard, M. A. Stallard, A. F. Plante, S. F. Plante, G. Plante, W. H. McDowell (2019). LCZO -- Stream Suspended Sediment, Streamflow / Discharge, Precipitation -- riverine particulate organic matter export -- Rio Mameyes and Rio Icacos -- (1991-2015), HydroShare, http://www.hydroshare.org/resource/5a338710aa6549ddba3d008163e977ee

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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