Stream Solute Export and Biogeochemistry in the Luquillo Mountains, Puerto Rico Richard L. Brereton William H. McDowell University of New Hampshire University.

Slides:

Advertisements

Similar presentations

Bob McKane, USEPA Bonnie Kwiatkowski & Ed Rastetter, Marine Biological Laboratory Marc Stieglitz & Feifei Pan, Georgia Institute of Technology ~ January.

Advertisements

The Effects of Soil Properties on Rain-garden Bioretention and Soil Processes in a Semi-arid City Melissa Mckinley 1, Jordan Brown 2, and Mitch Pavao-Zuckerman.

Swimming in a Sea of Asphalt Stormwater Management in Greenville County May 30 th, 2007 C. Brannon Andersen, Gregory P. Lewis, Weston Dripps, Suresh Muthukrishnan.

Ecological Perspectives on Critical Loads - Linkages between Biogeochemical Cycles and Ecosystem Change Differences and Similarities in N and S Cycling.

Soil CO 2 Efflux from a Subalpine Catchment Diego A. Riveros-Iregui 1, Brian L. McGlynn 1, Vincent J. Pacific 1, Howard E. Epstein 2, Daniel L. Welsch,

Climate and Biodiversity Chapter 5. Importance of Mountains – Islands of Biodiversity Rapid change as elevation changes –Many different biomes, high diversity.

Watershed Delineation and Characteristics on Alaska’s North Slope Matt Khosh University of Texas at Austin Department of Marne Science.

Pacific Southwest Research Station, Fresno, CA Kings River Experimental Watersheds KREW.

Spatial-temporal variability in ecosystem processes and water service in the context of climate and land use /cover changes Mei YU and Qiong Gao Dept Environmental.

Impacts of Forest Fire on Boreal Lakes

“Near term response of surface soil nitrogen cycling and pools to forest clearing and burning” Heather E. Erickson Recent soils research from the Teakettle.

Long-term Changes in Lamprey River Chemistry William H. McDowell University of New Hampshire.

Overview of Watershed Systems

Research focus. The Southern Sierra Critical Zone Observatory (CZO) is a community platform for research on critical-zone processes, and is based on a.

Riparian Light Environments of Luquillo Streams Joanne Fernández López Dr. Frederick N. Scatena (Mentor) El Verde REU August 2, 2006.

Southern Sierra Critical Zone Observatory Integrating water cycle & biogeochemical processes across the rain-snow transition R. Bales a, B. Boyer b, M.

Modeling water and biogeochemical cycles in the Front Range, Colorado: effects of climate and landuse changes Landrum, Laura L., Natural Resource Ecology.

Modeling Soil Organic Matter Distribution in a Northern Hardwood Forest and Tropical Watershed. Kris Johnson* Fred Scatena* and Yude Pan** *University.

Basso, B. and J. T. Ritchie Simulating crop growth and biogeochemical fluxes in response to land management using the SALUS model. Pages

The Collaborative Environmental Monitoring and Research Initiative (CEMRI) A Pilot in the Delaware River Basin Peter S. Murdoch, USGS Richard Birdsey,

Stream water chemistry in three meso-scale hydrologic basins in Eastern Amazonian Ricardo de O. Figueiredo 1, Daniel Markewitz 2, Eric A. Davidson 3, Ewerton.

CZO. Southern Sierra CZO: snowline processes CZO.

The Southern Sierra Critical Zone Observatory (CZO) is designed as a platform for integrated, multi-disciplinary research and scientific information that.

Contacts StreamchemDB Long-term goals Interested in databases? Adding sites and data Consensus on metadata and terminology Saving the nation’s long- term.

Ecosystem implications of long- term changes in precipitation chemistry LTER Science Council 14 May 2015 Steve Hamilton, Merryl Alber Charley Driscoll,

Focus on the Headwaters The Shenandoah Watershed Study / The Virginia Trout Stream Sensitivity Study Rick Webb Department of Environmental Sciences University.

Understanding Hydro-geochemical Process Coupling at the Susquehanna Shale Hills Critical Zone Observatory (SSHCZO) Using RT-Flux-PIHM: an integrated hydrological-reactive.

Estimating the Spatial Distribution of Snow Water Equivalent and Snowmelt in Mountainous Watersheds of Semi-arid Regions Noah Molotch Department of Hydrology.

Seminar: Snowmelt and Storm Events: Biogeochemical and Hydrological Responses.

Effects of Rising Nitrogen Deposition on Forest Carbon Sequestration and N losses in the Delaware River Basin Yude Pan, John Hom, Richard Birdsey, Kevin.

VFR Research - R. Hudson Basic Hydrology Streamflow: Hydrographs; Case studies of logging effects on streamflow; Peak flow.

Coupling between fire and permafrost Effects of permafrost thaw on surface hydrology between better- drained vs. poorly- drained ecosystems Consequences.

Hydrology of Colorado Water By Travis Hoesli. Hydrology of Colorado Unit Learning Objectives Recognize the Hydrologic Cycle that affects Colorado Water.

“Physical and Anthropogenic Controls of the Biogeochemistry of the Ji-Paraná River Basin (Western Amazônia)” 1 Ballester, M.V.R.; 1 Krusche, A.V.; 1 Kavaguishi,

Southern Sierra Critical Zone Observatory Integrating measurements for advances in hydrology & geochemistry A research platform for studying Earth surface.

Focus on “deep soil column” Spatial patterns Mechanism that control development and function Implications for ecology, biogeochemistry and hydrology What.

Table 1 Mean annual precipitation (mm). Altitudinal gradient of dissolved organic carbon in headwater streams of the Wuyi Mountains in China Question Wei.

Rating curves have been used to relate suspended sediment concentrations as a function of discharge. This study developed suspended sediment rating curves.

m | °C | Oak (Quercus kelloggii) woodlands with pine, annual grasses and native grasses and forbs 513 mm precipitation per year, predominantly.

Methylmercury Production in Groundwater Watershed Hg Research Program at SERC Deposition Transport Watershed retention Methylation MDN site MD00 Stream.

Intellectual Merit: NSF supported researcher Roger Bales and colleagues have developed a prototype instrument cluster for the study of mountain hydrology,

Impacts of Landuse Management and Climate Change on Landslides Susceptibility over the Olympic Peninsula of Washington State Muhammad Barik and Jennifer.

QUANTIFYING UNCERTAINTY IN ECOSYSTEM STUDIES Carrie Rose Levine, Ruth Yanai, John Campbell, Mark Green, Don Buso, Gene Likens Hubbard Brook Cooperators.

Inorganic Nutrient Research Kellogg Biological Station LTER o Soils in managed agricultural systems and unmanaged fields and forests: o Carbon and nitrogen.

Abstract Man-made dams influence more than just the flow of water in a river. The build up of sediments and organic matter, increased residence times,

Inorganic Nutrient Research Hubbard Brook LTER HBR LTER Climate change Winter climate change Long-term hydrometeorological patterns Future GCM projections.

Landscape controls on surface water quality.

Modeling Complex Interactions of Overlapping River and Road Networks in a Changing Landscape El Yunque National.

University of New Hampshire EXPORT OF CARBON, NUTRIENTS, AND WEATHERING PRODUCTS FROM A HIGHLY URBANIZED TROPICAL WATERSHED William H. McDowell, Jody D.

Luquillo Critical Zone Observatory September 13, 2010 Brief overview of activities Information Management “Science” Wells, Soil sampling, Synthesis Activities.

Riparian Buffers for Water Resource Protection Michael R. Burchell II Associate Professor and Extension Specialist Department of Biological and Agricultural.

Monitoring and Modeling the Acidification and Recovery of Catskills Waters and Soils Chris E. Johnson & Charles T. Driscoll Dept. of Civil & Environmental.

Modeling Source-water Contributions to Streamflow

Establishing a Soil Chemical Baseline for the Catskills

Forests and Water in the Sierra Nevada

Science issues Water balance/cycling in snowmelt dominated catchments

The role of cloud forests as water storages in South America

Hydrology of Colorado Water

in the Neversink River Basin, New York

SECTION 13.5 : Biogeochemical Cycles

Luquillo Biocomplexity Meeting January 2004

José J. Hernández Ayala Department of Geography University of Florida

Solute and Nutrient Export and Redistribution

The potential for microbial nutrient cycling processes in urban soils

Most of the Earth’s Freshwater Is Not Available to Us Freshwater availability: 0.024% Groundwater, lakes, rivers, streams Hydrologic cycle Movement.

7 Environmental Systems and Ecosystem Ecology Part B

Forests, water & research in the Sierra Nevada

Luquillo Biocomplexity Meeting January 2004

Biological and Geographical Processes Move Nutrients Between Organic and Inorganic Parts of the Ecosystem Concept 54.4 By Nida Ahmed.

Linking headwaters to the coast: Modeling DOC export at the large watershed scale B41D-0322 Christopher W. Hunt1*, Wilfred M. Wollheim2,3, Joseph Salisbury1,

Presentation transcript:

Stream Solute Export and Biogeochemistry in the Luquillo Mountains, Puerto Rico Richard L. Brereton William H. McDowell University of New Hampshire University of New Hampshire

El Yunque National Forest, PR The only tropical rainforest in the U.S. 70% of runoff is withdrawn (Crook 2005) LTER since 1988 CZO since 2009

Tropical Montane Wet Forest

Two Very Different Watersheds Rio Mameyes Volcaniclastic bedrock 3.5 m/y of rain Lower avg. elevation Rio Icacos/Blanco Granodiorite bedrock 4.5 m/y of rain Higher avg. elevation

Volcaniclastic: Rio Mameyes Bisley watersheds Q. Sonadora Granodiorite Rio Icacos Q. Guaba

Quebrada Sonadora - low flow

Controls on stream chemistry Major ions reflect lithology and sea salt Dilution at high flows Silica dilution is among highest measured (Godsey et al. 2009) TSS increases with flow Biogeochemical puzzle: Carbon and Nitrogen

Shanley, McDowell, and Stallard 2011 “Boomerang” effect of DOC in the Icacos

El Yunque, 1984

1989 – Hurricane Hugo (Inches of rain) Category 4 Hurricane: 226 km/hr sustained Study Area

Bisley Experimental Watersheds Before HugoAfter Hugo

Georges, 1998 Category 3, 175 km/hr sustained

Mameyes headwaters – 2005

Weathering products and DOC: no response to hurricanes Icacos after Georges

Nitrate response in two small watersheds after Georges ( ) Volcaniclastic (Prieta) Quartz diorite (Guaba)

Two larger basins, Sonadora (254 ha) and Icacos (326 ha) after Georges ( ) Pre-Hurricanes Rio Icacos Q. Sonadora

What makes nitrate behave so differently from other solutes? Why the slower return to baseline in granodiorite watersheds?

Biogeochemical controls on N flux to streams Hydrologic flow path – groundwater? surface runoff? Residence time – contact with soils What is the matrix? Redox conditions – climate Riparian denitrification NO 3 N 2 ON 2

Groundwater monitoring wells Transects across catena

Bisley – volcaniclastic Riparian zone: Denitrification “hotspot” periodically anaerobic C source high retention time Modified from McDowell et al. 1992

Icacos trib. – granodiorite watershed Riparian Zone Slope Stream: Flows into Icacos Modified from McDowell et al Key: NO 3 NH 4

Icacos – slow recovery

Conclusions Luquillo stream chemistry reflects lithology overlain by vegetation, climate, disturbance history Hurricanes cause dramatic shifts in forest biogeochemistry, reflected in stream nitrate peaks Riparian zones hold the key to understanding long-term nitrogen dynamics in the Luquillo Mountains

Acknowledgements Funding from NSF-LTER, NSF Ecosystems, NSF-CZO, USFS IITF, UPR, UNH Collaborators include F. Scatena, A. Lugo, D. Schaefer, C. Asbury, J. Merriam, J. Potter, and others Field and laboratory assistance from M. Salgado, M.J. Sanchez, J. Bithorn, J. Merriam, J. Potter, J. Orlando, and others

Questions? Riparian Zone Slope Stream: Flows into Icacos Modified from McDowell et al Key: NO 3 NH 4