PPT-Circumpolar Assessment of Organic Matter

Decomposibility as a Control Over Potential Permafrost Carbon Loss Dr Ted Schuur Department of Biology University of Florida February 2013 CoAuthors Christina Sch ä del . Healthy soil, strong plants, healthy people. Soil . T. ypes around Brisbane. www.asris.csiro.au. . Brisbane has four main soil types:. dark . alluvial soils. deep red loamy soils. gravelly red and yellow loamy top soils over clay. 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?. 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 . Glomus. sp.) AND ORGANIC MATTER ON CACTUS PEAR (. Opuntia. . albicarpa. ) GROWTH IN TWO SOIL TYPES. Gardezi. , A. K. ., . Márquez-. Berber. , S. R. ., . Figueroa-Sandoval, B. ., . Flores-Magdaleno, . Environmental Literacy Project. Michigan State University. . Animals. Unit. Activity 5.3: . Explaining How Cows Grow. : . Digestion. 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?. 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. *. USDA National Organic Standards Board (1995). Organic Labeling Processed Food. 100% Organic“ = only organic ingredients. Organic” = 95% organic ingredients. “Made With Organic Ingredients” = 70% organic ingredients. Matter and Energy What is matter? Matter and Energy What is matter? It's what everything that occupies space and has mass is made of And everything like that is made out of chemical elements There are 92 naturally occurring chemical elements, and a number of synthetic ones Decomposition. Basic Decomposition Equation. Organic compound . + O. 2. (or other electron acceptor). . . CO. 2. + H. 2. O + energy + inorganic nutrients. . a form of. . 1inaccessibility for hydrolysis or/and chemical resistanceS Decremps E Paul F Vedrenne JA Cacho Rivero and X LefebvreUniversit de ToulouseINSA UPS INPLISBP 135 Avenue de Rangueil F-31077 Toulouse Fra Foyergicle archival pigment Work in progress gicle archival pigment Contactgicle archival pigment BedroomPassageInstallation organic matter wireStudyPausegicle archival pigment Sologicle archival pigm Objectives. Define: soil respiration and soil microbes. Explain the role of soil respiration in determining soil health. Diagram the role of soil respiration in the cycle of life on earth. List and explain inherent factors that affect soil respiration. Let’s Start with the Big Picture:. Biome. Biomes. Shown here are arctic tundra, savannah, and mountain . biomes. A geographical region that has characteristic climate, plant, and animal life. There can be many ecosystems . 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.