Department of Earth & Environment Professor Sergio Fagherazzi was recently awarded a new NSF grant to study the effect of fertilizers on salt-marsh erosion.
The title of Fagerhazzi’s new grant is “Ecosystem evolution and sustainability of nutrient enriched coastal saltmarshes.”
The paper, “Saltmarsh pool and tidal creek morphodynamics: Dynamic equilibrium of northern latitude saltmarshes?“, is the product of a National Science Foundation funded project on marshes in Rowley, Massachusetts.
Carol Wilson, the paper’s lead author, is a former PhD student of FitzGerald’s, and the paper also features the work of the Department of Earth & Environment’s Post-doctoral Associate Zoe Hughes.
Department of Earth and Environment Professor Sergio Fagherazzi is in Vietnam this week as part of the Vietnam-United States cooperation program on the Mekong River Delta dynamics.
Over the course of this week, Fagherazzi will participate in in three workshops across the country. Fagherazzi will visit the Institute of Marine Geology and Geophysics at the Vietnam Academy of Science and Technology in Hanoi; the College of Environmental and Natural Resources at Can Tho University in Can Tho; and the Meteorology and Hydrology Department at Vietnam National University in Ho Chi Minh City.
At each scheduled workshop, Fagherazzi will be giving a talk titled “Feedbacks between vegetation cover, hydrodynamics, and sediment transport in tidally dominated tropical deltas: a remote sensing approach.” The talk focuses on work done by Fagherazzi in collaboration with Department of Earth and Environment Professor and Chair Curtis Woodcock.
Lucy Hutyra and Robert Kennedy selected to serve on Science Steering Group of the North American Carbon Program
Department of Earth & Environment Assistant Professor Lucy Hutyra and Assistant Professor Robert Kennedy have been selected to serve on the Science Steering Group of the North American Carbon Program (NACP).
As part of their service, Hutyra and Kennedy will be in Washington DC today and tomorrow, February 18th and 19th, to meet meet with fellow members of the Science Steering Group to discuss issues related to the North American Carbon Cycle.
Working with representatives of the federal agencies that fund and support carbon cycle science, the Science Steering Group meets roughly twice a year to discuss and advance the science and understanding of the North American Carbon Cycle.
The new paper, “A quantitative assessment of a terrestrial biosphere model’s data needs across North American biomes,” was part of an invited special issue on “Experiment-Model Integration in Terrestrial Ecosystems Study: Current Practices and Future Challenges.”
Assisting Dietze as co-authors on the paper are many of current and recent graduate students and post-doctoral associates of Dietze’s lab, the Dietze Laboratory, including current Department of Earth & Environment PhD candidate Joshua Mantooth.
Also assisting Dietze in the synthesis of available data on the project is current Department of Earth & Environment Post-Doctoral Associate Brady Hardiman and Boston University Undergraduate Lindsey Shanks.
A more detailed analysis of the content of the paper is below:
This paper uses the PEcAn framework developed by lab to assess the patterns of uncertainty in predictions of Net Primary Productivity (NPP) by the Ecosystem Demography model across 17 vegetation types in four biomes. The paper identifies four key processes responsible for the vast majority of model uncertainty. The dominant processes is growth respiration, which quantifies the metabolic cost of biosynthesis. The second most important process is stomatal conductance, which was affected by two parameters, stomatal slope and water conductance. Stomatal slope controls the effects of humidity, photosynthesis, and CO2 on stomatal conductance. Water conductance controls the effects of soil moisture and plant root distribution on stomatal conductance. The third most important processes was photosynthesis under low light conditions, and was specifically a reflection of insufficient data availability at high latitudes. The final process reflected how plant mortality rates responded to stress and competition.
Ranga Myneni coauthors an article in the journal “Proceedings of the National Academy of Sciences USA”
The paper “Afforestation in China cools local land surface temperature” was published on February 10th, 2014 and is a collaborative activity between researchers in China, France, and the USA. The paper reports the finding that afforestation decreases daytime land surface temperature (LST), because of enhanced evapotranspiration, and increases nighttime LST. This nighttime warming tends to offset daytime cooling in dry regions. These results suggest that it is necessary to carefully consider where to plant trees to achieve potential climatic benefits in future afforestation projects.
Prof. Myneni’s website is: http://sites.bu.edu/cliveg/
To see more information on Prof. Myneni’s publications, check out the publication section of our website.
Former graduate student Christopher Hein and Department of Earth and Environment Professor Duncan FitzGerald are the two primary authors on a new set of maps published today by the United States Geological Society.
The maps, titled “Onshore-Offshore Surficial Geologic Map of the Newburyport East and Northern Half of Ipswich Quadrangles, Massachusetts,” are a direct product of Hein’s recent dissertation.
The article, “One-dimensional numerical modeling of the long-term morphodynamic evolution of tidally-dominated estuary: The Lower Fly River (Papua New Guinea),” will be released in print in volume 301 of Sedimentary Geology this coming March.
The article features the work of Fagherazzi and former Department of Earth and Environment Post-Doctoral Associate Alberto Canestrelli. Canestrelli currently serves as a Post-Doctoral Associate at Penn State.