PPT-Soil Notes

Soil is a mixture of weathered rocks and minerals living organisms and decaying matter in which plants can grow Soil is a combination of water rocks organic materials and air What is Soil. They generally are less than 2 inches thick and are massive Crusts are created by the breakdown of structural units by flowing water or raindrops or through freezethaw action Soil crusts are generally only a temporary condition Typically the soil im The soil should be neutral or slightly acidic with pH 65 to 70 having high organic content Very light sandy soils are not recommended owing to their poor moisture holding properties Climate Light Light is one of the most important climatic factors i Matthew 13:1-23. Soil that Hears; Soil that Listens. 1. The Parable Presented. Soil that Hears; Soil that Listens. Matthew 13:1-9. That same day Jesus went out of the house and sat beside the sea. And great crowds gathered about him, so that he got into a boat and sat down. And the whole crowd stood on the beach. . By the end of this section you will be able..... To name and explain the causes of soil erosion.. Describe in detail how human activities can cause soil erosion.. Name and explain the primary methods of soil conservation.. Are they different? and . Do they matter?. Susan Andrews, National Leader. Soil Quality and Ecosystems. National Soil Survey Center. August 9. , . 2012. Soil Quality Definitions. “fitness for use”. The top layer of Earth’s crust where most plants grow. It contains minerals, decaying organisms, water, and air. It is divided into . horizons. , which are layers . parallel to the Earth’s surface in which . Objectives. Define: ammonification, ammonium, bulk density, . denitrification. , immobilization, leaching, mineralization, nitrate-N, nitrification, soil nitrogen fixation, volatilization. List and describe inherent factors that affect soil nitrogen. Description of variable Unit Range R DT Mnemonic Label for specification of geometry data - x0000profil C8 LABELNumber of soil horizons for which data are provided should correspond with file SWATREU 1are people on the earthMillions of species and billions of organisms151bacteria algae microscopic insects -tion of biomass anywhere on the planet Microbes which make up only one half of one percent o 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. 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. Aim: . To record soil temperature at different depths and computation of soil heat flux. Instruments required. : . Soil thermometer for 5,10, and 20cm depths. Computation of soil heat flux (. q. T. ). Sponsored by the NASA Climate Indicators and Data Products for Future Climate Assessment Program. Kenneth Tobin (TAMIU). Wade Crow . and Jianzhi Dong (USDA ARS). William Teng (NASA GSFC/ADNET Systems Inc.. Figure 3-24. Fig. 3-24a, p. 69. Mosaic of closely packed pebbles, boulders. Weak humus-mineral mixture. Dry, brown to reddish-brown with variable accumulations of clay, calcium and carbonate, and soluble salts.