PDF-a northern river sediment and organic carbon

GEESEY AND J W COSTERTON Dcporttlrrtrt cfUiolo Utricosity qfCrtlgcrr CrIqrt Atr Ctrtltrtltr GLLSLY G G and J W COS11o 1979 Miclobiology ofa northern river bactelial distribu tion and elntionship t. and humid areas are fragile. . Soil gets eroded by wind and water. Productive land becomes degraded. Main culprits:. Overgrazing. Overplowing. . Human activity can stress . the ecosystem. . • Grazing. Irina Overeem, March 2013. What is a River Plume?. Greenlandic River Plume, July 2010. Eel River Plume, CA 1974 flood. Cass River Plume, NZ. Concept of a Plume . After: Albertson, M.L., Dai, Y.B., Jensen, R.A., Hunter, R., 1950, . FREEING THE ELWHA. Deposition of Large Materials. Once rivers reach lower gradients, their erosional power decreases and their ability to carry sediment downstream also decreases. . With low flows, . Reserves. Rasika. . Gawde. ,. . Phillip . A. . DePetro. , Kenneth J. . Windsand. , and Martin T. Auer . Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, MI 49931. organic compounds. isomers. functional groups . Much of the chemistry of life is based on organic compounds. organic compounds. have at least one carbon atom covalently bound to either:. another carbon atom. __________, ___________, and __________ act together in a cycle that wears down and builds up Earth’s surface.. ________, ___________, __________, _______, and ________ all cause erosion.. _______ causes mass movement, the process that moves sediment downhill.. Organic chemistry. is the study of compounds that contain carbon. Organic compounds range from simple molecules to colossal ones. Most organic compounds contain hydrogen atoms in addition to carbon atoms. Environmental Literacy Project. Michigan State University. . Ecosystems . Unit. Activity 2.4 Organic Carbon . Pools in Other . Ecosystems. 1. Unit map. You are here. 2. Let’s look at organic carbon pools in real ecosystems. Carbon & The Molecular Diversity of Life Carbon: The Backbone of Life Living organisms consist mostly of carbon-based compounds Carbon is unparalleled in its ability to form large, complex, and diverse molecules SECTION 235 Based on the recognition that the anadromous fishery is in decline aThe Noyo River watershed is a 72323-acre coastal tributary immediately west of the City of Willits that flows to the Pac Within the middle Fly River the increased sediment delivered from the Ok Tedi has caused substantial aggradation of the river bed There is a sediment slug down to about the 300 km point of the river bioturbation. , oxygen, and . resuspension. where it is effectively sequestered for millennial time scales. .. Important to the global C cycle through the geologic carbon cycle - sediments are the point of entry . Jaap Nienhuis. 1. , Juan Paniagua Arroyave. 2. , Frances Dunn. 1. , . Sagy. Cohen. 3. , . Torbjorn. Tornqvist. 4. 1. Utrecht University, . 2. EAFIT University, . 3. University of Alabama, . 4. Tulane University. STUPID HUMAN TRICKS. . Po and Mississippi Rivers. Po River. Drainage basin includes: south flank of Alps, north flank of Apennines. Area = . 75,000 km. 2. (Columbia River = 670,000 km.