Name: PLSOIL 105 & 106 First Hour Exam February 27, Part A. Place answers on bubble sheet. 2 pts. each.
|
|
- Meghan Hopkins
- 8 years ago
- Views:
Transcription
1 Name: PLSOIL 105 & 106 First Hour Exam February 27, 2012 Part A. Place answers on bubble sheet. 2 pts. each. 1. A soil with 15% clay and 20% sand would belong to what textural class? A. Clay C. Loamy sand E. Silt loam 2. Which one of the following ions will cause clay particles to flocculate (= to stick to each other)? A. Ca 2+ B. K + C. Na + D. NH + 4 E. Cl - 3. In soil science, topsoil is called the... A. A horizon. B. B horizon. C. C horizon. D. O horizon. E. R horizon. 4. What is the maximum effective diameter of a clay particle? A. 2 mm B mm C mm D mm E mm 5. What is the maximum effective diameter of a sand particle? A. 2 mm B mm C mm D mm E mm 6. The textural class of a soil may change if you destroy all the organic matter in it, since the organic matter usually affects the way the soil feels. 7. Stokes law states that the settling velocity of soil particles (V) is proportional to the square of D, which represents... A. the distance the soil particle has already fallen. B. the density of the soil particle. C. the density of the surrounding fluid. D. the diameter of the soil particle. 8. Soil containing mostly clay and very little sand or silt is likely to feel... A. Plastic or sticky (when wet) B. Scratchy C. Silky smooth (when dry)
2 9. To form soil structures like blocks or columns, a soil needs to contain a fair amount of what size of particles? A. Clay B. Gravel C. Grit D. Sand E. Silt 10. In which soil horizon do blocky and columnar structures usually occur? A. A horizon B. B horizon C. C horizon D. O horizon E. R horizon 11. It is usually easiest to pull weeds from a dry... y sand C. Loam D. Silty clay loam 12. If you plowed soils in the following textural classes to a depth of 7 inches, your tractor would have to work hardest (and you would use the most fuel per acre) in a... y sand C. Loam 13. Which soil s volume changes the least in response to equal forces of compaction? C. Sand 14. Which soil probably has the lowest dry bulk density if all three soils are as loose and as little compacted as possible? C. Sand 15. All other factors being equal, which soil will have higher CO 2 concentrations? A. Compacted soil B. Uncompacted soil 16. All other factors being equal, which soil will have higher CO 2 concentrations? A. Wet soil B. Dry soil 17. All other factors being equal, which soil will have higher CO 2 concentrations? A. Soil with manure added recently B. Manure-free soil 18. Which one of the following is NOT likely to result from the application of a thick layer of organic mulch? A. Soil will stay warmer into the autumn and over the winter. B. Soil will warm up more quickly in the spring. C. Soil erosion will be reduced. D. Weeds will be suppressed. 19. In winter, subsoil at a depth of 2 feet (60 cm) reaches its lowest temperature... A. a few weeks before topsoil at a depth of 4 inches (10 cm) does. B. a few weeks after topsoil at a depth of 4 inches (10 cm) does. C. at just about the same time as topsoil at a depth of 4 inches (10 cm) does. 20. At the end of the growing season, the soil in a regularly plowed agricultural field probably has higher bulk density than otherwise identical (except for human manipulation) soil in an adjacent wood lot that has not been plowed for 50 years.
3 21. If a loam is at the permanent wilting point, then... (Note: Choose only one.) A. No soil pores are filled with water. B. Some plant-available water remains in the soil. C. Moisture tension equals -a bar. D. Moisture tension equals -15 bars. E. Moisture tension equals -31 bars. 22. Saturation and Field capacity are synonyms. Both terms describe soil that is completely filled with water so that no air remains in any pore spaces. 23. That rate at which water flows through a thin tube of diameter D is proportional to what power of D, assuming all other factors (like tube length and pressure head) stay constant? A. D -1 B. D C. D 2 D. D 3 E. D Adding organic matter to a soil will generally... A. make it able to store more plant available water. B. make it able to store less plant available water. C. have no effect on the amount of plant available water the soil can store. 25. The same amount of irrigation water is applied to a clay loam soil and a loamy sand soil. After 4 hours, which one of the following will be true? A. The water will be infiltrating the two soils at approximately the same rate. B. The water will be infiltrating the clay loam faster than the loamy sand C. The water will be infiltrating the loamy sand faster than the clay loam. 26. At the permanent wilting point, which soil (usually) contains the most total water? C. Loamy sand E. Silt loam 27. Which soil (usually) can store the most plant available water? C. Loamy sand E. Silt loam 28. Which two atoms/ions are small enough to fit in the centers of tetrahedra in clay layers? A. Al and Ca 3+ + B. Al and K C. Al and Si D. Si and Ca 4+ + E. Si and K 29. In a 2:1 clay by definition,... A. there is twice as much oxygen as there is silicon. B. there is twice as much magnesium as silicon. C. there are two tetrahedral sheets per layer. D. there are two octahedral sheets per layer. 30. The holes in the centers of the octahedra in trioctahedral clay minerals are mostly 2+ filled with divalent cations like Mg. 31. Smectites have greater CEC (per g) than vermiculites.
4 32. Compared to vermiculites, smectites swell more when wetted and shrink more when dried. 33. Which one of the following clays has the most anion exchange capacity at ph = 4? A. Chlorite B. Fine micas C. Hydrous oxides of Fe and Al D. Smectites E. Vermiculites 34. Plants growing in compacted soils often have difficulty obtaining sufficient water in drying soil even before the soil reaches the permanent wilting point because the strength of the soil gets too high to allow good root penetration. 35. Which measure of the abundance of water in soil best approximates the way plants sense the availability of water? A. Gravimetric water content B. Volumetric water content C. Soil water potential (suction) 36. Which kind of soil structure is likely to be stabilized by organic matter? A. Blocks B. Prisms/columns C. Spheroidal aggregates 37. The attraction of water molecules for the walls of a glass capillary tube is an example of... A. adhesion. B. cohesion. 38. At 3:00 P.M. on a sunny day in July, which is likely to have the highest temperature? A. Air two inches above bare soil. B. Half of an inch down in the bare soil. C. One foot down in the bare soil. Part B - Short answers. For these questions, place your answers in words and/or numbers directly on this question booklet 39. Please list two materials of biological origin that help to stabilize spheroidal aggregates. (4 pts.)
5 3 A 91.4-cm sample of a loam is taken from the field three days after a long, soaking rain, when the soil was at field capacity. The field-moist weight of the soil was g, and the weight of the same sample after drying in an oven overnight was g.(3 pts. each for these problems.) 40. What was the percent gravimetric moisture content, or GMC, of the soil at field capacity (calculated according to the conventions usually followed in soil science)? 41. If this soil reaches the permanent wilting point at a gravimetric moisture content of 6.85%, how much plant available water can this soil store? 42. What is the dry bulk density (D b) of the soil? 43. What is the porosity of the soil as a percentage of total soil volume? Hint: It may help to -3 recall that %Porosity = [1 - (D /D )] 100, and that D is usually about 2.65 g cm. b p p 44. What is the volumetric moisture content (VMC) of the soil at field capacity? 3 Hint:VMC = GMC D (1 cm of water /g of water). (Either a fraction or % is O.K.) b 45. What fraction of the soil s porosity is filled with water at field capacity? 46. What is the name of the most abundant (dioctahedral) 1:1 clay on earth? (2 pts.)
6 47. As promised, here is the Extra-credit Question. Extra credit is available here for any information you learned for this exam that you have not already used in answering the first 46 questions. The first two points are especially easy to get, so PUT SOMETHING HERE! We will accept just about any not-previously-tested information, but here are some ideas to help you get started: In compacted soils, dry conditions are more of a problem than usual (cf., question 34). What s the big problem for plants in a compacted wet soil? Remember anything about how you should space irrigation ditches in fine- versus coarse-textured soils, and why? What is the approved term for the device your instructor was pleased to call a suckometer? What the heck is hysteresis? (Hint: It is not something that happens to students near the end of one of these soils exams.) What are the names of two young clays. What kind of layers do they have? What glues those layers together? As clays age, how do they change? You could answer the last question in terms of changes in CEC, changes in shrink/swell tendency, changes in Si content, or changes in the extent of isomorphous substitution. Which has more CEC: a gram of well-decomposed colloidal humus, or a gram of vermiculite?
Chapter D9. Irrigation scheduling
Chapter D9. Irrigation scheduling PURPOSE OF THIS CHAPTER To explain how to plan and schedule your irrigation program CHAPTER CONTENTS factors affecting irrigation intervals influence of soil water using
More informationEnvironmental Science
Project Area: Skill Level: Beginner to Intermediate Learner Outcomes: Learn about the three classes of soil particles that determine a soil s texture. Learn to evaluate soil texture by feel. Learn how
More informationAPPENDIX B CHARACTERIZATION OF SOILS AT TEST SITES
APPENDIX B HARATERIZATION OF SOILS AT TEST SITES A.1 LAMBTON FAILITY 2015 ANNUAL LANDFILL REPORT BIOMONITORING PROGRAM pendix B haracterization of Soils at Test Sites pendix B HARATERIZATION OF SOILS
More informationThe Characteristics of Clay. Table of Contents
The Characteristics of Clay Table of Contents Preview...2 Objectives...2 Readings...2 Introduction...3 Structure of clay minerals...3 Physical features...3 Mineralogical features...4 A. Basic structure
More informationClassification of the soil at CIMMYT s experimental station in the Yaqui Valley near Ciudad Obregón, Sonora, Mexico
Classification of the soil at CIMMYT s experimental station in the Yaqui Valley near Ciudad Obregón, Sonora, Mexico Nele Verhulst 1,2, Jozef Deckers 2, Bram Govaerts 1 Summary The soil at the experimental
More informationSalinity Management and Soil Amendments for Southwestern Pecan Orchards
Salinity Management and Soil Amendments for Southwestern Pecan Orchards Thomas L. Thompson, Professor and Soils Specialist James L. Walworth, Associate Professor and Soils Specialist Department of Soil,
More informationSTUDY QUESTIONS FOR GEOLOGY 408U/508
Geology 408/608 Study Questions 1 STUDY QUESTIONS FOR GEOLOGY 408U/508 These questions should be used as a guide to your study of the course material for exam preparation. A significant portion of exam
More informationCOTTON WATER RELATIONS
COTTON WATER RELATIONS Dan R. Krieg 1 INTRODUCTION Water is the most abundant substance on the Earth s surface and yet is the most limiting to maximum productivity of nearly all crop plants. Land plants,
More informationAppendix D.1. Testing Requirements for Infiltration, Bioretention and Sand Filter Subsoils
Appendix D.1 Testing Requirements for Infiltration, Bioretention and Sand Filter Subsoils General Notes Pertinent to All Testing 1. For infiltration trench (I-1) and basin (I-2) practices, a minimum field
More informationInherent Factors Affecting Soil Nitrogen
Nitrogen (N) is the most abundant element in the atmosphere and is usually the most limiting crop nutrient. Nitrogen cycles through soil in various processes and forms. Some processes are necessary to
More informationOperators Manual SOIL COMPACTION TESTER
Operators Manual SOIL COMPACTION TESTER ENGLISH DOCU-M0116 03-10 Introduction THANK YOU for purchasing the Soil Compaction Tester. READ THIS MANUAL carefully to learn how to operate and service your Soil
More informationGENERAL WATERING & CARE GUIDE
GENERAL WATERING & CARE GUIDE Between 30-60 percent of water applied to lawns and gardens is never absorbed by the plants. Water is often wasted because it is applied too quickly and runs off, evaporates
More informationWhat should you know? Soil Colloids and Cation Exchange Capacity. Colloids. Characteristics of Soil Colloids. What is Clay? Types of Soil Colloids
What should you know? Soil Colloids and Cation Exchange Capacity Chapter 8 p. 316-362 Soil colloids - what they are, their properties Differences between soil clay minerals Properties of humic substances
More informationBMP 6.7.3: Soil Amendment & Restoration
BMP 6.7.3: Soil Amendment & Restoration Soil amendment and restoration is the process of improving disturbed soils and low organic soils by restoring soil porosity and/or adding a soil amendment, such
More information9.00 THE USE OF HUNTER LAND DRAINAGE PERFORATED PIPES. Hunter Underground Systems
9.00 THE USE OF HUNTER LAND DRAINAGE PERFORATED PIPES Hunter Underground Systems 9.01 General 9.02 Surface water Drainage 9.03 Groundwater Drainage 9.04 Dispersal of Septic Tank Effluent 9.01 The use of
More informationTitle: Call center and answering services for the medical & home health care industry
Title: Call center and answering services for the medical & home health care industry Word Count: 444 Summary: Now discover a whole new perspective to health care.\edical and home health care services
More informationA perforated conduit such as pipe, tubing or tile installed beneath the ground to intercept and convey ground water. or structures.
BMP: SUBSURFACE DRAIN Definition A perforated conduit such as pipe, tubing or tile installed beneath the ground to intercept and convey ground water. PurRoses 1. To prevent sloping soils from becoming
More informationMETHOD A10 (a) THE DETERMINATION OF THE IN-PLACE DRY DENSITY OF SOIL OR GRAVEL BY THE SAND REPLACEMENT METHOD
METHOD A10 (a) THE DETERMINATION OF THE IN-PLACE DRY DENSITY OF SOIL OR GRAVEL BY THE SAND REPLACEMENT METHOD 1 SCOPE The in-place dry density of compacted soil or gravel, as defined below, is determined
More informationLAB 24 Transpiration
Name: AP Biology Lab 24 LAB 24 Transpiration Objectives: To understand how water moves from roots to leaves in terms of the physical/chemical properties of water and the forces provided by differences
More informationChemical and Mechanical Mechanisms of Moisture Damage in Hot Mix Asphalt Pavements
Chemical and Mechanical Mechanisms of Moisture Damage in Hot Mix Asphalt Pavements Dallas N. Little Texas A&M University David R. Jones Owens Corning Moisture Damage Loss of strength and durability due
More informationGUIDELINES FOR SOIL FILTER MEDIA IN BIORETENTION SYSTEMS (Version 2.01) March 2008
GUIDELINES FOR SOIL FILTER MEDIA IN BIORETENTION SYSTEMS (Version 2.01) March 2008 The following guidelines for soil filter media in bioretention systems have been prepared on behalf of the Facility for
More informationWhat is Soil Survey?
What is Soil Survey? Soil Survey is a systematic examination, description, classification, and mapping of the soils in a given area. Brady and Weil. 1996 Who Produces Soil Survey Cooperative effort between
More informationSoils, Foundations & Moisture Control
Soils, Foundations & Moisture Control Soil The top loose layer mineral and/or organic material on the surface of the Earth that serves as a natural medium for the growth of plants and support for the foundations
More informationLandscape Irrigation Design Manual
Landscape Irrigation Design Manual c Contents Forward...v Introduction...vii Step one: Understanding basic hydraulics...3 Static water pressure...4 Dynamic water pressure...6 Exercises on basic hydraulics...9
More informationUniversal Soil Erosion Equation
Author: Laura Swantek Time: 50 minute class period Grade Level: 9-12 Background: Soil is created by the weathering of rock and the decomposition of organic materials. Soils are classified according to
More informationINTRODUCTION. Agriculture Center of Excellence 500 Tausick Way Walla Walla, WA 99362 www.agcenterofexcellence.com
TABLE OF CONTENTS Introduction...1 Materials List for Soils Labs...2 Soils Labs Lab #1: Soil Morphology...4 Exercise A: Determination of Texture by Feel...5 Exercise B: Soil Structure Types...9 Exercise
More informationCHAPTER 1. SOIL PHYSICAL PROPERTIES
SSC107-Fall 2000 Chapter 1, Page - 1 - Contents: CHAPTER 1. SOIL PHYSICAL PROPERTIES Soil physics Soil texture Soil surface area Soil structure Volume and mass relationships Water content measurements
More informationHydrologic Soil Groups
United States Department of Agriculture Natural Resources Conservation Service Hydrology Chapter 7 Rain clouds Cloud formation Precipitation Transpiration Surface runoff Evaporation from vegetation Transpiration
More informationLandscape Irrigation Design Manual
Landscape Irrigation Design Manual c Contents Forward...v Introduction...vii Step one: Understanding basic hydraulics...3 Static water pressure...4 Dynamic water pressure...6 Exercises on basic hydraulics...9
More informationLAB 5 - PLANT NUTRITION. Chemical Ionic forms Approximate dry Element symbol Atomic weight Absorbed by plants tissue concentration
LAB 5 PLANT NUTRITION I. General Introduction All living organisms require certain elements for their survival. Plants are known to require carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus
More informationUnderstanding Erosion. Revised Universal Soil Loss Equation
Understanding Erosion with the Revised Universal Soil Loss Equation Towards a Better Understanding of the What, Why & How Erosion is a process of detachment and transport of soil particles by erosive forces.
More informationWET/DAMP BASEMENTS ANSWER: BASEMENT WALLS AND FLOORS CAN BECOME WET BY A LEAK, CAPILLARY SUCTION OR CONDENSATION.
WET/DAMP BASEMENTS PROBLEM. IS THIS BASEMENT LEAKING OR COULD WE HAVE ANOTHER PROBLEM? Water line arching up on wall in corners of basement. Water collecting on concrete floor starting in corners. ANSWER:
More informationMeasuring Soil Moisture for Irrigation Water Management
Measuring Soil Moisture for Irrigation Water Management FS 876 by Hal Werner, Extension irrigation engineer Irrigation water management requires timely application of the right amount of water. Competition
More informationLATIS. Planting Soils for Landscape Architectural Projects. Barrett L. Kays, FASLA. Landscape Architecture Technical Information Series
LATIS Landscape Architecture Technical Information Series Planting Soils for Landscape Architectural Projects Barrett L. Kays, FASLA LATIS Planting Soils for Landscape Architectural Projects Copyright
More informationSOIL QUALITY AND SITE ASSESSMENT CARD for Connecticut Community Gardeners
U.S. Department of Agriculture Natural Resources Conservation Service SOIL QUALITY AND SITE ASSESSMENT CARD for Connecticut Community Gardeners CONNECTICUT What are Soil Quality and Site Assessment Cards?
More informationNOTE: FOR PROJECTS REQUIRING CONTRACTOR MIX DESIGN, THE DESIGN PROCEDURES ARE SPECIFIED IN THE SPECIAL PROVISIONS OF THE CONTRACT.
September 1, 2003 CONCRETE MANUAL 5-694.300 MIX DESIGN 5-694.300 NOTE: FOR PROJECTS REQUIRING CONTRACTOR MIX DESIGN, THE DESIGN PROCEDURES ARE SPECIFIED IN THE SPECIAL PROVISIONS OF THE CONTRACT. 5-694.301
More informationVirginia Gardener http://www.hort.vt.edu/envirohort
The Virginia Gardener http://www.hort.vt.edu/envirohort Name Help Sheets: Seeds What Is a Seed? A seed is a very young plant that is in the dormant, or resting stage. It is very much alive. There are three
More informationCOMPOST A USER'S GUIDE TO. The Beauty of Your Lawn & Garden Blossoms from the Soil
A USER'S GUIDE TO COMPOST The Beauty of Your Lawn & Garden Blossoms from the Soil Compost adds organic material and nutrients to the soil, increases water-holding capacity and biological activity, and
More informationSoil Properties soil texture and classes heat capacity, conductivity and thermal diffusivity moisture conductivity
Lecture 33 Lecture on Soil Physics, part 1 Soil Properties soil texture and classes heat capacity, conductivity and thermal diffusivity moisture conductivity porosity and diffusion i Theory, Heat Transfer
More informationSettlement of Foundations on Expansive Clays Due to Moisture Demand of Trees CIGMAT 2008
Settlement of Foundations on Expansive Clays Due to Moisture Demand of Trees CIGMAT 2008 Kenneth E. Tand, P.E. Practicing Geotechnical Engineer FRIEND OR FOE Trees are our friends. They extract carbon
More informationGuidelines for Control of Water Runoff on Small Lots. Revised 6/09
Guidelines for Control of Water Runoff on Small Lots Revised 6/09 Table of Contents Introduction and Purpose 3 Administrative Procedures 3 Plan Submittal Requirements 3 General Design Criteria 4 Dry Wells
More informationSECTION 55 PIPE FOR STORM DRAINS AND CULVERTS (FAA D-701)
SECTION 55 PIPE FOR STORM DRAINS AND CULVERTS (FAA D-701) 55-1 GENERAL The Contractor shall perform all work required by the plans for construction of pipe for storm drains, precast polymer trench drains
More informationGeotechnical Investigation Test Report
Geotechnical Investigation Test Report Report No. htsc/rcd/ 3457 Dated: - 20/03/2010 Asphalt Standard Penetration Test as per IS 2131 ------------- IS 6403 Soil Job Card No - 1649 Cement Client/Department
More informationScience of Life Explorations
Science of Life Explorations Student Scientists: Make Your Bed Activity #2 Study Soil While we are still talking about soil, let s check three other soil properties that will affect your garden: compaction
More informationNJ650.1404 Interception Drainage
NJ650.1404 Interception Drainage Interception drainage is used to intercept surface and subsurface water. The investigation, planning, and construction of surface interception drains follow the requirements
More informationXI / PHYSICS FLUIDS IN MOTION 11/PA
Viscosity It is the property of a liquid due to which it flows in the form of layers and each layer opposes the motion of its adjacent layer. Cause of viscosity Consider two neighboring liquid layers A
More informationStandard Test Procedures Manual
STP 206-4 Standard Test Procedures Manual Section: 1. SCOPE 1.1. Description of Test This method describes the procedure for determining the liquid limit, plastic limit and the plasticity index of coarse-grained
More informationCONSTANT HEAD AND FALLING HEAD PERMEABILITY TEST
CONSTANT HEAD AND FALLING HEAD PERMEABILITY TEST 1 Permeability is a measure of the ease in which water can flow through a soil volume. It is one of the most important geotechnical parameters. However,
More informationFluid Mechanics: Static s Kinematics Dynamics Fluid
Fluid Mechanics: Fluid mechanics may be defined as that branch of engineering science that deals with the behavior of fluid under the condition of rest and motion Fluid mechanics may be divided into three
More informationLABORATORY II. PLASTICITY - Atterberg limits. w L - Cone test, Cassagrande test
LABORATORY II. PLASTICITY - Atterberg limits w L - Cone test, Cassagrande test Consistency - limits I P w L w P Is plasticity important? Smectite Structure Tetrahedral layer Octahedral layer Tetrahedral
More informationDAMAGE TO FOUNDATIONS FROM EXPANSIVE SOILS
DAMAGE TO FOUNDATIONS FROM EXPANSIVE SOILS J. David Rogers, Robert Olshansky, and Robert B. Rogers Expansive soils in many parts of the United States pose a significant hazard to foundations for light
More informationTrench Rescue by Buddy Martinette
Trench Rescue by Buddy Martinette SOIL TYPE AND TESTING It is imperative that rescue personnel understand soil types and testing procedures if the want to be competent at trench rescue operations. Determining
More informationPreventing Basement Flooding
Preventing Basement Flooding Perry Lindquist Land Resources Manager Waukesha County Dept. of Parks & Land Use Waukesha County Storm Water Workshop April 10, 2013 Presentation Outline Background Case study
More informationo d Propagation and Moon Planting Fact Sheet
o d Propagation and Moon Planting Fact Sheet Propagation Propagation is actually quite simple and requires very little effort on your part. Most seeds are ready to go, complete with all the nutrients and
More informationCalcium (Ca) and magnesium (Mg) are secondary nutrients, but they are
Chapter 4 Magnesium 32 4 Magnesium Charles S. Wortmann UNL Professor of Agronomy Revised from: Kenneth D. Frank UNL Associate Professor Emeritus, Agronomy Calcium (Ca) and magnesium (Mg) are secondary
More informationRocks & Minerals. 10. Which rock type is most likely to be monomineralic? 1) rock salt 3) basalt 2) rhyolite 4) conglomerate
1. Of the Earth's more than 2,000 identified minerals, only a small number are commonly found in rocks. This fact indicates that most 1) minerals weather before they can be identified 2) minerals have
More informationUnderstanding and Living With Your Septic System
Chapter 9 Understanding and Living With Your Septic System Rural versus urban sewage treatment One of the big difference between rural and city life is how sewage is dealt with. Cities usually have community
More informationStorm Drain Inlet Protection for Construction Sites (1060)
Storm Drain Inlet Protection for Construction Sites (1060) Wisconsin Department of Natural Resources Conservation Practice Standard I. Definition A temporary device installed in or around a storm drain
More informationSoil contamination and remediation. Introduction to soil chemistry
Soil contamination and remediation Introduction to soil chemistry Chemistry background History chemical reactions Colloids - soil ph soil s buffer capacity Chemistry - background atom, molecule, chem.
More informationFri_B03 Healthy Soils I. Introduction: Soil or Dirt A. Natural soils and urban soils B. Goals of plants and soil in built landscapes
Fri_B03 Healthy Soils I. Introduction: Soil or Dirt A. Natural soils and urban soils B. Goals of plants and soil in built landscapes II. III. Physical Properties of Soil A. Texture B. Structure C. Density
More informationRelationship between the percentage of clay with liquid limit, plastic limit and plastic index in four different soils texture class
Technical Journal of Engineering and Applied Sciences Available online at www.tjeas.com 2013 TJEAS Journal-2013-3-8/697-702 ISSN 2051-0853 2013 TJEAS Relationship between the percentage of clay with liquid
More informationproduct manual HS-4210 HS-4210_MAN_09.08 Digital Static Cone Penetrometer
HS-4210_MAN_09.08 product manual HS-4210 Digital Static Cone Penetrometer Introduction This Manual covers the measurement of bearing capacity using the Humboldt Digital Static Cone Penetrometer (DSCP).
More informationFlash Flood Science. Chapter 2. What Is in This Chapter? Flash Flood Processes
Chapter 2 Flash Flood Science A flash flood is generally defined as a rapid onset flood of short duration with a relatively high peak discharge (World Meteorological Organization). The American Meteorological
More informationThe University of Toledo Soil Mechanics Laboratory
The University of Toledo Soil Mechanics Laboratory 1 Soil Moisture-Density Relationship Standard and Modified Proctor Tests Introduction For earthork construction it is important to compact soils to a
More informationph is an expression of the concentration of hydrogen ions in solution
What is Acidity? An acid is a substance that gives off hydrogen ions ( H + ). A base is a substance that gives off hydroxyl ions. ( OH - ). ph is an expression of the concentration of hydrogen ions in
More informationState of Illinois Department Of Transportation CONSTRUCTION INSPECTOR S CHECKLIST FOR STORM SEWERS
State of Illinois Department Of Transportation CONSTRUCTION INSPECTOR S CHECKLIST FOR STORM SEWERS While its use is not required, this checklist has been prepared to provide the field inspector a summary
More informationIRRIGATING TOBACCO. J. Michael Moore
IRRIGATING TOBACCO J. Michael Moore Irrigation is an important component for the production of quality tobacco in Georgia. Rainfall is unpredictable and generally unreliable during the critical growth
More informationA GUIDE FOR REMEDIATION SALT/HYDROCARBON IMPACTED SOIL
A GUIDE FOR REMEDIATION OF SALT/HYDROCARBON IMPACTED SOIL Distributed by: North Dakota Industrial Commission Department of Mineral Resources Bismarck, ND 58505-0840 Funded by the Oil and Gas Research Council
More information= 1.038 atm. 760 mm Hg. = 0.989 atm. d. 767 torr = 767 mm Hg. = 1.01 atm
Chapter 13 Gases 1. Solids and liquids have essentially fixed volumes and are not able to be compressed easily. Gases have volumes that depend on their conditions, and can be compressed or expanded by
More informationAnalysis of Double-Ring Infiltration Techniques and Development of a Simple Automatic Water Delivery System
2005 Plant Management Network. Accepted for publication 25 April 2005. Published. Analysis of Double-Ring Infiltration Techniques and Development of a Simple Automatic Water Delivery System Justin H. Gregory,
More informationTREE MANAGEMENT ON GOLF COURSES ROOTS MATURE TREE CARE
TREE MANAGEMENT ON GOLF COURSES ROOTS MATURE TREE CARE ROOT DAMAGE ROOT DAMAGE One is from BC The other Alberta. Are these the same tree with mower blight or weed whipped to death? ROOT ZONE BURIED ONE
More informationSelection of geo-synthetic filter materials as drain envelopes in clay and silty loam soils to prevent siltation: A case study from Turkey
African Journal of Agricultural Research Vol. 6(16), pp. 3930-3935, 18 August, 2011 Available online at http://www.academicjournals.org/ajar DOI: 10.5897/AJAR11.716 ISSN 1991-637X 2011 Academic Journals
More informationCopyright Advanced Viticulture, Inc. www.advancedvit.com
Pressure bomb Real-time Soil Moisture + PB + Porometer P. Bomb + ET Soil Moisture +PB + Porometer P. Bomb + Porometer Determine Site Characteristics Rooting Depth Soil Type Install Soil Moisture Sensors
More informationSECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES
SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES WATER CYCLE OVERVIEW OF SECOND GRADE WATER WEEK 1. PRE: Exploring the properties of water. LAB: Experimenting with different soap mixtures. POST: Analyzing
More informationSoil compaction is the physical consolidation
A3367 Soil compaction: Causes, concerns, and cures Richard Wolkowski and Birl Lowery Compacted soil can cut crop yields by as much as 5% due to reduced aeration, increased resistance to root penetration,
More informationApr 17, 2000 LAB MANUAL 1302.0. 1302 PARTICLE SIZE ANALYSIS OF SOILS AASHTO Designation T 88 (Mn/DOT Modified)
Apr 17, 2000 LAB MANUAL 1302.0 1302 PARTICLE SIZE ANALYSIS OF SOILS AASHTO Designation T 88 (Mn/DOT Modified) 1302.1 SCOPE This method describes a procedure for the quantitative determination of the distribution
More informationVulnerability Assessment
Vulnerability Assessment VULNERABILITY As used in this report, vulnerability refers to the sensitivity of groundwater to contamination, and is determined by intrinsic characteristics of the aquifer. It
More informationVISUAL PHYSICS School of Physics University of Sydney Australia. Why do cars need different oils in hot and cold countries?
VISUAL PHYSICS School of Physics University of Sydney Australia FLUID FLOW VISCOSITY POISEUILLE'S LAW? Why do cars need different oils in hot and cold countries? Why does the engine runs more freely as
More informationSECTION 311 PLACEMENT AND CONSTRUCTION OF CEMENT TREATED SUBGRADESOIL CEMENT BASE COURSE
PLACEMENT AND CONSTRUCTION OF CEMENT TREATED SUBGRADESOIL CEMENT BASE COURSE 311.1 DESCRIPTION: This item shall consist of a cement treated subgrade base course composed of a mixture of local soil, portland
More informationBANANA PRODUCTION. ARC-Institute for Tropical and Subtropical Crops. Banana Production - English
BANANA PRODUCTION ARC-Institute for Tropical and Subtropical Crops Banana Production - English BANANA PRODUCTION Compiled by Directorate Communication National Department of Agriculture and W. Willemse,
More informationGRADATION OF AGGREGATE FOR CONCRETE BLOCK
GRADATION OF AGGREGATE FOR CONCRETE BLOCK Although numerous papers have been written concerning the proper gradation for concrete mixes, they have generally dealt with plastic mixes, and very little published
More informationTree Pits Operation & Maintenance Guide
Tree Pits Operation & Maintenance Guide What are tree pits? Tree pits collect stormwater runoff from small carpark areas or roads. Runoff filters through the tree roots and surrounding soil mix, trapping
More informationThe Hydrologic Cycle. precipitation evaporation condensation transpiration infiltration surface runoff transport groundwater water table.
The Hydrologic Cycle Page 1 of 1 Name Directions: The hydrologic cycle consists of the processes that change and move water through the earth s system. Use the terms below to label the hydrologic cycle.
More informationENCE 4610 Foundation Analysis and Design
This image cannot currently be displayed. ENCE 4610 Foundation Analysis and Design Shallow Foundations Total and Differential Settlement Schmertmann s Method This image cannot currently be displayed. Strength
More informationAPPLICATION FOR GRAYWATER IRRIGATION SYSTEM PERMIT SIMPLE RESIDENTIAL GRAVITY SYSTEMS, NO STORAGE
APPLICATION FOR GRAYWATER IRRIGATION SYSTEM PERMIT SIMPLE RESIDENTIAL GRAVITY SYSTEMS, NO STORAGE Please read the California Plumbing Code Chapter 16A-1 Design Requirements before completing this form.
More informationIrrigation - How Best to Water Your Desert Trees
Irrigation - How Best to Water Your Desert Trees John Eisenhower, ISA Certified Arborist WE-5213A Integrity Tree Service, Inc. 602-788-0005 www.itreeservice.com How much water do my trees need? How much
More informationFINAL REPORT ON SOIL INVESTIGATION
FINAL REPORT ON SOIL INVESTIGATION FOR PROPOSED CONSTRUCTION AT SS-6B AREA AT HPCL VISAKH REFINERY VISAKHAPATNAM ANDHRA PRADESH J.J. ASSOCIATES(VISAKHAPATNAM) AETP(P) LIMITED #11-6-3, RockDale Layout,
More informationKWANG SING ENGINEERING PTE LTD
KWANG SING ENGINEERING PTE LTD 1. INTRODUCTION This report represents the soil investigation works at Aljunied Road / Geylang East Central. The objective of the soil investigation is to obtain soil parameters
More informationEffect of Using Magnetized Treated Water in Irrigation of Bell Pepper and Beans in AL-Jeftlik Area / West Bank Palestine
Effect of Using Magnetized Treated Water in Irrigation of Bell Pepper and Beans in AL-Jeftlik Area / West Bank Palestine Dia Radeideh Dia Karajeh Nawaf Abu Khalaf Amer Marei 25,Feb,2015 HOW TO MANGE WATER
More informationEffect of Temperature
Physiology of Hay Drying - Dan Undersander, Forage Specialist, Wisconsin (http://www.uwex.edu/ces/forage/) Presented at the Manitoba Forage Symposium April 23, Winnipeg Manitoba Introduction: For each
More informationWashington 98102-3699, mike.bailey@hartcrowser.com
LESSONS LEARNED FROM A STONE COLUMN TEST PROGRAM IN GLACIAL DEPOSITS Barry S. Chen 1, P.E., Member, Geo-Institute and Michael J. Bailey 2, P.E., Member, Geo-Institute ABSTRACT A stone column test program
More informationCreate Your Own Soil Profile Ac5vity
Create Your Own Soil Profile Ac5vity Middle School: 5-8 Task Overview: Soil profile refers to layers of soil. A typical soil profile takes nearly 1,000 to 100,000 years to form. The formation of the soil
More information6. Base your answer to the following question on the graph below, which shows the average monthly temperature of two cities A and B.
1. Which single factor generally has the greatest effect on the climate of an area on the Earth's surface? 1) the distance from the Equator 2) the extent of vegetative cover 3) the degrees of longitude
More informationMETHOD A7 THE DETERMINATION OF THE MAXIMUM DRY DENSITY AND OPTIMUM MOISTURE CONTENT OF GRAVEL, SOIL AND SAND
SCOPE METHOD A7 THE DETERMINATION OF THE MAXIMUM DRY DENSITY AND OPTIMUM MOISTURE CONTENT OF GRAVEL, SOIL AND SAND Definition The maximum dry density and optimum moisture content, as defined below, is
More informationENGINEERED FOUNDATIONS. Department of Public Works Jeff Hill, PE
ENGINEERED FOUNDATIONS Department of Public Works Jeff Hill, PE What is an engineered foundation. A Foundation Design Developed by a Trained Professional (Engineer) Types of Foundations (All of which can
More informationGuidelines for Applying Manure to Cropland and Pasture in Wisconsin
Guidelines for Applying Manure to Cropland and Pasture in Wisconsin Fred Madison, Keith Kelling, Leonard Massie and Laura Ward Good Land application of manure is the only practical management alternative
More information(1) e.g. H hydrogen that has lost 1 electron c. anion - negatively charged atoms that gain electrons 16-2. (1) e.g. HCO 3 bicarbonate anion
GS106 Chemical Bonds and Chemistry of Water c:wou:gs106:sp2002:chem.wpd I. Introduction A. Hierarchy of chemical substances 1. atoms of elements - smallest particles of matter with unique physical and
More informationSoil properties analysis
Soil properties analysis Back ground Soil is a complex, living, changing and dynamic component of the agroecosystem. It is subject to alteration, and can be either degraded or wisely managed. A thorough
More informationEMERGENCY HOME PROTECTION. Homeowner's Guide for Emergency Flood Control. Contents INTRODUCTION
EMERGENCY HOME PROTECTION Homeowner's Guide for Emergency Flood Control Contents Discussion or Section Page Number Introduction 3 Potential Flooding Periods 4 General Rules and Control Aids 5,6 Sandbags
More informationUsing Web-based Software for Irrigation and Nitrogen Management in Onion Production: our Research Plan for 2013
Using Web-based Software for Irrigation and Nitrogen Management in Onion Production: our Research Plan for 2013 Andre Biscaro, Farm Advisor UCCE Los Angeles County Michael Cahn, Farm Advisor UCCE Monterey
More information