What is soil? A dynamically and continuously changing, mixture of inorganic, living and dead organic materials, that sustains physical, chemical and biological.

Slides:

Advertisements

Similar presentations

Chapter 15 Soil Resources

Advertisements

Greenwich Peninsula.

Elements and Compounds

Chapter 15/14 Soil Resources. Soil  Uppermost layer of Earth’s crust that supports plants, animals and microbes  Soil Forming Factors  Parent Material.

Chapter 4 Biogeochemical Cycles. Objectives:  Identify and describe the flow of nutrients in each biogeochemical cycle.  Explain the impact that humans.

A valuable mineral deposit is located just below the surface of the ground. Which method would be used to obtain the mineral?____________________________.

Human Population, Carrying Capacity, and Resource Use 3.4 The Soil System.

Ch 14 Weathering and Erosion

Soil as a Resource Chapter 11. Figure 11.8 Soil Formation Soil – several ways to define –Unconsolidated material overlying bedrock –Material capable.

APES Ms. Tooker   Rock cycle  Formation  Composition  Physical and chemical properties  Main soil types  Erosion  Soil conservation Soil.

B. Describe how soil is formed, and define terms of formation; Begins when Parent Material or Rock is weathered Weathering: process when the climate breaks.

Soil. Characteristics Soil is a thin layer on top of earth’s land surface. Soil is a natural resource and deeply affects every other part of the ecosystem.

Ch 9 – Water Resources These lectures contain copyrighted images that are provided in the teacher materials for Friedland/Relyea Environmental Science.

AP Environmental Science Soil Resources (Ch 14) Living in the Environment, 14th edition, G. Tyler Miller.

Soil & Soil Dynamics.

SOILS Excerpts of the presentations of:

Biology and Geology 3º ESO A. Use of water Domestic and urban Bathroom, preparation of food, watering the garden. Washing, drinking, etc. Comsumption.

Soil. What is soil?  Mixture of inorganic material (rocks) and organic material (SOM) as well as organisms (microbes).  Soil formation involves:  Parent.

Soil. Chemistry Review Cation: atom that forms a positive charge (example: Ca +2 ) anion: atom that forms a negative charge (example: S -2 )

Soil as a Resource Chapter 12. Soil Formation Soil – several ways to define –Unconsolidated material overlying bedrock –Material capable of supporting.

Chapter 15 Soil Resources

Environmental Studies Dr Anupam Agarwal. Composition of Soil: Soils are a mixture of different things; rocks, minerals, and dead, decaying plants and.

Ag Production and the Environment

Soil Composition 2 1/13/12. What are the soil textures? Table 1. The Size of Sand, Silt and Clay NameParticle Diameter Clay below millimeters Silt.

Weathering and Soil Formation

Ag Production and the Environment Text adapted from The World Food Problem Leathers & Foster, 2009 ttp:// Toward-Undernutrition/dp/

Chapter 14 Soil Resources. Soil  Uppermost layer of Earth’s crust that supports plants, animals and microbes  Soil Forming Factors  Parent Material.

Soil watch?v=qajjl3esi5E (intro sent out via kmail)

AP Environmental Science Soil Resources Living in the Environment, 14th edition, G. Tyler Miller.

Soils & Soil Horizons APES – Ch. 8. Weathering of Minerals.

Soils Chapter 5. SOIL Is the soft material that covers the surface of the earth and provides a place for the growth of plant roots. It also contains minerals,

The Living Earth Chapter 15.

Weathering of Rocks. Why we see weathering 1.Most minerals are not stable at the Earth’s surface 2.The Earth wants to be flat – lowest energy state Topography.

Soils, Chapter 10 © Brooks/Cole Publishing Company / ITP.

Sustainable development and the environment Remediation.

The Soil Texture Triangle Creates classes which break the distribution of particle sizes (soil textures) into 12 categories: clay, sandy clay, silty clay,

Ag Production and the Environment

1. Why is water important? Water shapes Earth’s surface and affects Earth’s weather and climates. Water needed for life. Living things are made up of.

GO C3Analyze and Evaluate Mechanisms Affecting the Distribution of Potentially Harmful Substances within an Environment. Transport of Materials Through.

Soil & Agriculture Chapter 9.  sinesstechnology/ _inperson maas06.html

L ECTURE 9: Soil. Soil Weathering of Rocks and Minerals  Weathering refers to the physical, chemical and biological factors/processes that disintegrate.

Lesson 7. Understanding Soil Degradation. Next Generation Science/Common Core Standards Addressed ! HS-ESS2-2 Analyze geoscience data to make the claim.

SOIL AS AN ECOSYSTEM INTRODUCTION TO SOILS FIELD STUDY What do we know about soil now? What makes up soil? What lives there? Where does soil come from?

Soil. Weathering of Rocks and Minerals  Weathering refers to the physical, chemical and biological factors/processes that disintegrate and decompose.

UNIT #2 Soil What is soil?. Soil: A mixture of mineral particles and organic material that covers the land, and in which terrestrial plants grow.

Sources of solid waste. Waste water. gas emissions

CHAPTER 2 NATURAL RESOURCES AND THEIR CONSERVATION LAND RESOURCE.

Soil Review Powerpoint

Soil Pollution 2: Electric Boogaloo -The powerpoint-

23.1 Fresh Water 71% of Earth is covered with water, 3% is fresh

Ground water, Overuse, and Pollution

Ground water, Overuse, and Pollution

Soil Degradation & Conservation

Soil Uppermost layer of Earth’s crust that supports plants, animals and microbes Soil Forming Factors Parent Material Time Climate Organisms Topography.

3.2 - Soils Discuss why soil is an important resource.

Soils: formation and fertility

Soil Structures.

The Lithosphere.

Soil Structures.

Soil Formation.

TEST REVIEW ON WEATHERING, SOIL AND WATER

Weathering: Chemical Weathering: the breakdown of rock into sediments

What is soil? A dynamically and continuously changing, mixture of inorganic, living and dead organic materials, that sustains physical, chemical and biological.

Soil Structures.

Module 25 Weathering and Soil Science

Presentation transcript:

What is soil? A dynamically and continuously changing, mixture of inorganic, living and dead organic materials, that sustains physical, chemical and biological functions while providing resources to the living nature.

Genesis of soils 1.) physical weathering of rock  temperature  water 2.) chemical weathering  nutrients 3.) biological processes  biological weathering

Functions of soil biomass archeology modulation biotope source medium

Soil characteristics - physical compositionsolid pore gas liquid - pore contentclayey sand 35% peat 80% garden soil 60% - permeability - organic material

3 phase2 phase soil particles liquid gas soil particles liquid/gas pore

- water types pore water capillary waterclay 1-2m sand 20-30cm sorbed water - temperature – neutral zone - albedo plow – 0.17 plain surface – 0.3 snow – mineral content

Soil degradation 1.) erosion (water/wind) natural causes: anthropogenic: remedy: heavy rain, steep slopes, impermeable soil strong wind, dry soil, lack of vegetation land abuse, deforestation terracing, vegetation, alteration of soil structure, shelter belts

2.) acidification natural causes: anthropogenic: remedy: lack of calcium breakdown of vegetation (CO 2 ) fertilizers (H + ), acid rain no unnecessary fertilizer, lime addition

3.) salinization natural causes: anthropogenic: remedy: bad drainage irrigation, raising groundwater level salt content control in irrigation water, groundwater level control, chemical methods (ion change)

4.) mechanical degradation (compaction) natural causes: anthropogenic: remedy: bad structure, lack of organisms in the soil agricultural vehicles, bad water management agro-techniques

5.) bad water household natural causes: remedy: climate (regional or microclimate) soil structure irrigation, channel inland inundation, catchment area control

Pollution source deposition (air/water) background agriculture industry/mining traffic landfills reduction gas/dust emission food chain seepage in groundwater physical/chemical/biological breakdown immobilization

Actions to take 1. previous land use 2. test holes 3. determination of pollutants 4. extent of pollution 5. prevent further spread 6. enclose or deck, if necessary 7. elimination

consider:bedding (layering) groundwater questions:where (density) depth disturbed/undisturbed sample change in gw level direction of gw flow

pollutanttype of dangerlanduse heavy metals, organic pollutants ingestiongarden, recreation area, playground cadmium, leadbioaccumulationgarden sulfates, copper, nickel, zinc, methane plant poisonagricultural land sulfates, chlorides, phenol, oil corrosioninbuilt areas methane, sulphur, inflammable material danger of fire and explosion inbuilt areas PAC, asbestos, radioactive material contactinbuilt areas phenol, cyanide, sulphate water pollutiongroundwater, surface water

Extent borehole

Isolation 1. Isolating wall2. Depression 3. Water intrusion well wall well

Elimination EX SITU soil exchange, deposition soil washing (chemicals) chemical extraction immobilization dehalogenization oxidation - reduction gas suction IN SITU pore gas suction thermal treatment soil washing (chemicals) pneumatic decompaction immobilization vitrification biodegradation bioventillation