PPT-TOWARDS PHOSPHORUS SUSTAINABILITY

IN NORTH AMERICA A MODEL FOR TRANSFORMATIONAL CHANGE Dana Cordell 1 Brent Jacobs 1 Jason Chin 2 Helen Rowe 3 1 INSTITUTE FOR SUSTAINABLE FUTURES UNIVERSITY OF TECHNOLOGY SYDNEY. Phosphorus is largely retained in soil by a process called adsorption. . Soils . have a limited capacity to store phosphorus, and once the capacity of soil to adsorb phosphorus is exceeded, the excess will dissolve and move more freely with water either directly to a stream or downward to an aquifer. . Eric Smeltzer. eric.smeltzer@state.vt.us. Why is phosphorus a problem in lakes?. Low. Phosphorus. ~10 µg/L. Very high. Phosphorus. > 50 µg/L. High. phosphorus. Medium. phosphorus. Why are excessive algae a problem in lakes?. Alexandra Arntsen, Alison Foster, Scott Ritter. April 2011. Problem Statement:. . Excess phosphorus loading in Lake Champlain is affecting overall water quality through increased growth rates of photosynthetic aquatic plant life and the subsequent reduction of dissolved oxygen. . Geochemical Cycles continued. Objectives: . Describe the process of cycling phosphorus throughout environment. . Describe the role that fertilizer plays in both the nitrogen and phosphorus cycle. . What is phosphorus?. Joana Lapao Rocha. UCT, Prague . 1. Food Security. Phosphorus is irreplaceable and impossible to synthesize. Indispensable to maintain high agricultural yields . Phosphate rock was added to the list of critical raw materials at EU level. and Phosphate. Phosphorus . is essential for the growth of algae and other biological organisms. .. Algal . blooms P enters into . surface . waters from,. - . Domestic . + industrial discharges. Unit 4 . – Nutrient Cycles in marine ecosystems. Magnesium:. Used to . make chlorophyll. Ca Cycle:. Ca present in ocean as Ca. 2+ . (calcium ions). From weathering/erosion of . rocks. ; . brought to ocean from runoff of rivers. …. Sustainability at UofL. Context-specific. Dynamic. Sustainable Systems:. Eliminate . Waste . & . Pollution. Eliminate . Abuse (to people, animals, planet). Rely . on Renewable Resources. Change . Ron . Entringer. , Jay Bloomfield. NYSDEC. Watershed Modeling:. Steve . Pacenka. , Casey Garland, . Peter . Vermeulen. , . Tammo. . Steenhuis. Cornell University . NYC Watershed/. Tifft. Science & Technical Symposium. Renal Physiology 5. Charles J. Foulks, M.D.. 9/21/2011. Minerals . Calcium (Ca) . Phosphorus (P) . Magnesium (Mg) . Organ Systems . Skeleton . Kidney . GI tract . Other . Hormones . Calcitropic hormones . Steve Gladding, Brian Duffy, Ron Entringer , Jay Bloomfield NYSDEC Watershed Modeling: Steve Pacenka , Casey Garland, Peter Vermeulen , Tammo Steenhuis Cornell University NYC Watershed/ Tifft ASSOCIATE PROFESSOR. DEPT OF MATERIA MEDICA. NAME – Phosphorus . SYMBOL – P . ATOMIC No. – 15 . ATOMIC Wt. – 30.973762 . GROUP No. – 15 . GROUP NAME – . Pnictogen. . PERIOD No. – 3 . BLOCK – p -block . Objectives. Define: immobilization, mineralization, phosphorus cycle, phosphorus fixation, soil phosphate. Diagram the relationship of phosphorus inputs and soil processes. List and describe inherent factors that affect soil phosphorus. Courtney Giles, PhD. UVM . EPSCoR. /RACC Q1. Phosphorus. MW: 30.97. Hennig. Brand, 1669. History. <. 1200 . Present. – Manure fertilizers used. 1669. . – . Hennig. Brand discovers ‘white’ elemental .