PPT-A Photochemical Mechanism of Model Organic Matter in Ice

Marcelo I Guzman 1 and Michael Hoffmann 2 1 Department of Chemistry University of Kentucky Lexington Kentucky USA 2 Environmental Science amp Engineering Caltech Pasadena California USA. Lesson two: Soils. Time to observe and learn. You will examine three types of soil:. Clay. Sand. Loam. You will need to read and follow the instructions carefully. After examining the soil types:. What are some ways we can classify soils?. Reactions. 6.1 Introduction. 6.2 . Thermodynamics of photochemical . reactions. 6.3 Monatomic oxygen and ozone formation. 6.4 Role of oxides of nitrogen in . photo-oxidation. 6-5. Hydrocarbons in atmospheric . Dissolved organic matter (DOM) is an important property of lake ecosystems, resulting from the decomposition of organic matter stored in soils and of plankton in the water column. Colored dissolved organic matter (CDOM), the fraction that absorbs ultraviolet (UV) and visible light, is the controlling factor for the optical properties of many surface waters. Little is known about the mechanisms by which DOM and CDOM evolve in lakes formed during glacial retreat. As part of a larger study of the ecosystems in glacial lakes, the present project examined the quality of DOM and CDOM in lakes in SW Greenland. Nine lakes in . Environmental . Literacy Project. Michigan State University. . Plants . Unit. Activity 5.4: . Explaining How Plants Grow: Biosynthesis. Unit Map. 2. You are here. Revisit your arguments. Think about what you know now that you didn’t know before. What have you learned?. by. Jeremiah W. Murphy. NSF AAP Fellow. (University of Washington). Collaborators:. Christian . Ott. (Caltech), Adam Burrows (Princeton U.) . What is the mechanism of explosion?. Multi-Messenger. Astrophysics: Exhibit A. David Talmy, Adam . Martiny. , Anna Hickman. , Mick . Follows. Rutgers, December 2015. Why do we care about elemental composition?. Animal growth efficiency is influenced by food C:N ratio. Cabbage butterfly caterpillar gross growth efficiency. Care for these RESOURCES. Starting with The Basics!. What is soil. Naturally deposited MIXTURE of:. R. ock particles. “Organic” materials. Air. Water. Soil Components. Soil Components. Air. = Mixture of atmospheric gases. Time to observe and learn. You will examine three types of soil:. Clay. Sand. Loam. You will need to read and follow the instructions carefully. After examining the soil types:. What are some ways we can classify soils?. Objectives. Define: acidity, alkalinity, buffering capacity, soil pH. List and describe inherent factors that affect soil pH. Describe how to manage soil pH. Describe how soil pH affects soil function. Photochemical grid model estimates of lateral boundary contributions to ozone and particulate matter across the continental United States Kirk Baker U.S. Environmental Protection Agency Research Triangle Park, NC s. oil test interpretation. Weston Miller, . OSU Extension Service. Preview of presentation. Safety precautions. General . soil quality assessment . How to take a soil test. What to test for. Interpreting results. 307B. Lecture 8. D. r. Mahmoud Nour El-Dein. Composition of Organic Matter. Soil organic matter plays important role in the maintenance and improvement of soil properties. It is a dynamic material and is one of the major sources of nutrient elements for plants. . Lémery. . nof. a chemistry book that classified substances according to their origin as mineral, vegetable, or animal. Compounds derived from plants and animals became known as . organic . and those derived from nonliving sources were inorganic.. Objectives. Define: soil organic matter. Explain the role of inherent factors affecting soil organic matter. Explain the five soil organic matter management practices. Explain how soil organic matter relates to soil function.