Now showing items 61-70 of 309
Conversion to soy on the Amazonian agricultural frontier increases streamflow without affecting stormflow dynamics
Large-scale soy agriculture in the southern Brazilian Amazon now rivals deforestation for pasture as the region’s predominant form of land use change. Such landscape level change can have substantial consequences for ...
The application of δ18O and δD for understanding water pools and fluxes in a Typha Marsh
The δ18O and δD composition of water pools (leaf, root, standing water, and soil water) and fluxes (transpiration, evaporation) were used to understand ecohydrological processes in a managed Typha latifolia L. freshwater ...
Biomass and toxicity responses of poison ivy (Toxicodendron radicans) to elevated atmospheric CO2 : reply
(Ecological Society of America, 2008-02)
A stable isotope simulator that can be coupled to existing mass balance models
To facilitate the simulation of isotope dynamics in ecosystems, we developed software to model changes in the isotopic signatures of the stocks of an element using the output from any parent model that specifies the stocks ...
Historical carbon emissions and uptake from the agricultural frontier of the Brazilian Amazon
(Ecological Society of America, 2011-04)
Tropical ecosystems play a large and complex role in the global carbon cycle. Clearing of natural ecosystems for agriculture leads to large pulses of CO2 to the atmosphere from terrestrial biomass. Concurrently, the remaining ...
NLOAD : an interactive, web-based modeling tool for nitrogen management in estuaries
(Ecological Society of America, 2007-07)
Eutrophication of estuaries is an increasing global concern that requires development of new tools to identify causes, quantify conditions, and propose management options that address this environmental problem. Since ...
High particle export over the continental shelf of the west Antarctic Peninsula
(American Geophysical Union, 2010-11-24)
Drifting cylindrical traps and the flux proxy 234Th indicate more than an order of magnitude higher sinking fluxes of particulate carbon and 234Th in January 2009 than measured by a time-series conical trap used regularly ...
Potential influence of climate-induced vegetation shifts on future land use and associated land carbon fluxes in Northern Eurasia
(IOP Publishing, 2014-03-21)
Climate change will alter ecosystem metabolism and may lead to a redistribution of vegetation and changes in fire regimes in Northern Eurasia over the 21st century. Land management decisions will interact with these ...
Mechanical land clearing to promote establishment of coastal sandplain grassland and shrubland communities
The decline in grasslands and other species-rich early-successional habitats on the coastal sandplains of the northeastern U.S. has spurred management to increase the area of these declining plant communities. We mechanically ...
Impacts of extreme winter warming events on litter decomposition in a sub-Arctic heathland
Arctic climate change is expected to lead to a greater frequency of extreme winter warming events. During these events, temperatures rapidly increase to well above 0ºC for a number of days, which can lead to snow melt ...