Results 51 to 60 of about 251,600 (263)

Emission factors for open and domestic biomass burning for use in atmospheric models [PDF]

, 2010
Biomass burning (BB) is the second largest source of trace gases and the largest source of primary fine carbonaceous particles in the global troposphere. Many recent BB studies have provided new emission factor (EF) measurements.
Akagi, S. K., Alvarado, M. J., Crounse, J. D., Karl, T., Reid, J. S., Wennberg, P. O., Wiedinmyer, C., Yokelson, R. J.   +7 more
core   +3 more sources

Comparative field‐scale assessment of TLUD and Kon‐Tiki biochar systems: agronomic performance and net CO2e‐based techno‐economics

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Post‐harvest agricultural residues in Latin America are commonly underutilized, leading to greenhouse gas emissions and lost opportunities for bio‐based value creation. This study tests the hypothesis that decentralized, farmer‐scale pyrolysis technologies can deliver comparable agronomic benefits while exhibiting distinct techno‐economic and ...
Juan F. Saldarriaga, Thomas Käslin, Enara Fernández, Maider Amutio, Gartzen López, Laura Santamaria, Nausika Querejeta, Julián E. López   +7 more
wiley   +1 more source

Heidi Asbjornsen Associate Professor of Natural Resources, COLSA, travels to Costa Rica [PDF]

, 2012
Experiential Student Learning and Collaborative Research: Understanding Tropical Ecosystem Response to Climate Change from Leaves to Landscapes. During January 2012, I traveled to Costa Rica to visit potential field sites for a future UNH J-term course ...
Asbjornsen, Heidi
core   +2 more sources

Development of a conceptual model of the hydrologic response of tropical Andean micro-catchments in Southern Ecuador [PDF]

, 2012
This paper presents a lumped conceptual model designed for simulating the rainfallrunoff response of mountain micro-catchments with natural vegetation located in the south of Ecuador. The conceptual model is mimicking the soil hydrology and consists of a
Breuer, Lutz, Buytaert, W., Crespo, Patricio, Célleri, R., Feyen, J., Frede, Hans-Georg, Ramírez, M.   +6 more
core   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Regional differences of functional and taxonomic bird diversity in tropical agroforests of Peru

Conservation Science and Practice
Diversity and functionality of bird communities in tropical agroforests are shaped by their surrounding landscape, particularly the extent and type of natural forest.
Carolina Ocampo‐Ariza, Tara Hanf‐Dressler, Bea Maas, Jorge Novoa‐Cova, Evert Thomas, Justine Vansynghel, Ingolf Steffan‐Dewenter, Teja Tscharntke   +7 more
doaj   +1 more source

Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: the Manaus LBA site [PDF]

, 2002
Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously ...
Araújo, A.C., Culf, A.D., Dallarosa, R., Elbers, J.A., Gash, J.H.C., Kabat, P., Kruijt, B., Manzi, A.O., Nobre, A.D., Randow, C., von, Stefani, P., Valentini, R.   +11 more
core   +2 more sources

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

Ecological implications of forest fire in seasonally dry tropical forests: a systematic review

Geology, Ecology, and Landscapes
Globally, fire plays a vital role in shaping ecosystem patterns and processes. Both directly and indirectly, fire regimes influence the structure, composition, distribution of biota, nutrient dynamics, and ecosystem carbon.
Shovasish Karna, Shanmuganathan Jayakumar   +1 more
doaj   +1 more source

Evaluating multiple causes of persistent low microwave backscatter from Amazon forests after the 2005 drought [PDF]

, 2017
Amazonia has experienced large-scale regional droughts that affect forest productivity and biomass stocks. Space-borne remote sensing provides basin-wide data on impacts of meteorological anomalies, an important complement to relatively limited ground ...
Braswell, Bobby H., Frolking, Stephen E., Hagen, Stephen, Herrick, Christina, Keller, Michael, Milliman, Thomas E., Palace, Michael W., Peterson, Seth, Roberts, Dar   +8 more
core   +3 more sources