Biogeochemical Cycles A biogeochemical cycle is how animals obtain useful inorganic and organic materials, use them, and return them to be recycled.

Slides:



Advertisements
Similar presentations
OBJECTIVE 14 Trace biogeochemical cycles through the environment, including water, carbon, oxygen, and nitrogen Relating natural disasters, climate changes,
Advertisements

Cycles In Nature Objectives: Define the term “Cyclical”
Unit 1 Ecosystems Cycles of Matter.
Cycles of Nature Matter, as well as energy, moves through an ecosystem and is constantly recycled. Nitrogen, water, oxygen and carbon are cycled globally.
Matter Cycles matter.
CYCLES OF MATTER The Water Cycle Nutrient Cycles The Carbon Cycle
Cycling of Matter. Recap: Environment: all abiotic and biotic factors that exist on Earth as well as their interactions Abiotic: non-living factors Biotic:
Chapter 4 Biogeochemical Cycles. Objectives:  Identify and describe the flow of nutrients in each biogeochemical cycle.  Explain the impact that humans.
MATTER CYCLING IN ECOSYSTEMS
Ecological Cycles Vocabulary words.
Biogeochemical Cycles
Biogeochemical Cycles
run-off absorption decomposition Cycling of Matter transpiration The water cycle.
Recycling in the Biosphere
Biogeochemical Cycles
Biogeochemical Cycles
Flow of Energy and Matter. Ecosystem Recycling Energy and matter flow through an ecosystem Plants get energy from the sun We get energy from what we eat.
Biogeochemical Cycles WATER CYCLE Also called the Hydrologic Cycle Water is circulated through the global ecosystem. Fresh water evaporates and condenses.
What organism is important in cycling of nutrients? Agenda for Friday Jan 9 th 1.Quiz 2.Cycles Notes.
Cycling of Materials in Ecosystems SECTION Biogeochemical Cycles A pathway from living things, into nonliving parts of the ecosystem and back All.
The Chemical Cycles Unlike energy, matter can be recycled. The Water, Carbon, and Nitrogen Cycles are the three main ways matter is recycled in the environment.
Biogeochemical cycles
Ecological Cycles Biosphere Carbon cycle Phosphorus cycle Nitrogen
Pollution and Biogeochemical Cycles. Why should you care about the Earth? Pick a partner that sits near you. Write two or three reasons.
Look up and Define words out of Chapter 4 & 5. Voc/Chapter Test on Thursday.  Biomass  Ecological Pyramid  Precipitation  Transpiration  Condensation.
Biogeochemical Cycles Biology 20. Chemicals Cycle Inorganic nutrients are cycles through natural ecosystems repeatedly. Biogeochemical cycles are the.
Air Quality Air quality affects the quality of life for all organisms on Earth. Air quality affects the quality of life for all organisms on Earth. Natural.
Biogeochemical Cycles
BIOGEOCHEMICAL CYCLES Nitrogen Cycle Water Cycle Carbon Cycle.
Lesson Overview 3.4 Cycles of Matter.
Biogeochemical Cycles. What is a “biogeochemical cycle”?  BIO = “life”  GEO = “earth”  CHEMICAL = “elements – C, O, N, P, S a cycling of nutrients.
Cycles in an Ecosystem Water, Carbon, and Nitrogen.
Nutrient Cycles & Pollution Ecology K. Stacker
Biogeochemical Cycles. What is ecology?  The scientific study of interactions among organisms and between organisms and their environment is ecology.
Chapter 4 Biogeochemical Cycles. Objectives:  Identify and describe the flow of nutrients in each biogeochemical cycle.  Explain the impact that humans.
Our unit on Ecology continues… Part 2..  The combined portions of the planet in which all life exists, including land, water, air and the atmosphere.
Biogeochemical Cycles (Nutrient Cycles)
By: Arturo Alleje Degradation of the atmosphere’s life support sysytems.
Miss Forsythe Science The Cycles of Matter The Water Cycle The matter (stuff) in your body has been around for millions of years Nature does not always.
Chapter 3 Biogeochemical Cycles. Objectives:  Identify and describe the flow of nutrients in each biogeochemical cycle.  Explain the impact that humans.
Biochemical Cycles- closed circles or cycles of materials from nonliving to living organisms and back to nonliving. Examples : Water, carbon, nitrogen.
Biogeochemical Cycles. Objectives:  Identify and describe the flow of nutrients in each biogeochemical cycle.  Explain the impact that humans have on.
Environmental Chapter 2. Biogeochemical Cycles Most things in nature get recycled and are used over again Three common cycles – Water cycle – Carbon cycle.
Biogeochemical Cycles
AIM: How does pollution affect the environment?
Biogeochemical Cycles
 Matter is recycled (it changes form, but never leaves)  Energy is not recycled.
1.2 Nutrient Cycles and Energy Flow (Part 1) pp
 part of Earth where life exists  located near Earth’s surface where sunlight available  plants need sunlight to produce food - almost every other.
Combustion with Emissions SOURCES OF AIR POLLUTANTS & EFFECTS ON HEALTH  CO-CARS, INDUSTRY  NO X- CARS, POWER PLANTS  SO 2 FOSSIL FUELS  VOC’S-VOLATILE.
Ms. Harvey 2016 BIOGEOCHEMICAL CYCLES.  An ecosystem survives by a combination of energy flow and matter recycling TWO SECRETS OF SURVIVAL: ENERGY AND.
The Cycling of Matter in Ecosystems
BIOGEOCHEMICAL CYCLES
Water Cycle: movement of water between the oceans, atmosphere, land and living things condensation precipitation runoff evaporation groundwater.
The Water Cycle Learning Objectives:
Cycles in Nature Energy transfers.
Material Cycling in Ecosystems
EQ: How are nutrients recycled throughout the environment?
All About the Air….
WATER CYCLE PRECIPITATION TRANSPIRATION EVAPORATION CONDENSATION
Cycles in Nature 13.2.
Resources and Conservation
Biogeochemical Cycles
Cycles Through The Ecosystem
Biogeochemical Cycles
The Water Cycle.
Nutrient Cycles in Nature Ch. 3-3
Biogeochemical Cycles
THE CYCLES OF EARTH Carbon Cycle Nitrogen Cycle Water Cycle.
Biogeochemical Cycles
Presentation transcript:

Biogeochemical Cycles A biogeochemical cycle is how animals obtain useful inorganic and organic materials, use them, and return them to be recycled.

Water Cycle As you can see from the above image there are many paths for the water cycle. Here is one scenario. – The sun heats up a body of water causing evaporation – The water vapor rises into the atmosphere and condenses as it cools forming clouds – When the water content in the clouds exceeds the capacity to hold the water precipitation (rain) begins Scenario 2 – Water from precipitation or bodies of water seep into the ground where it is used by plants (percolation) – The plants continually release water through their leaves through a process know as transpiration or evapotranspiration – The rest is the same as scenario 1

Carbon Cycle The carbon cycle is considered to b a biogeochemical cycle. Bio because of the sugars and molecules that are made from it and geo from the CO 2 that is produced as a result of cellular respiration and the burning of organic compounds. Carbon is the building block of life. Uptake of Atmospheric CO 2 – Primarily removed by plants, algae, phytoplankton, and phytobacteria via the process of photosynthesis – Additional amounts of CO 2 are dissolved in large bodies of water (oceans) – A small amount combines with water vapor to become acid rain Release of CO2 to environment – Nearly all living things produce CO 2 – Decaying organisms will release CO 2 – The combustion of organic materials releases large amounts of CO 2 – The eruption of volcanoes is another source contributing to atmospheric CO 2

Nitrogen Cycle Nitrogen is an important building block used in the formation of DNA and proteins. Nitrogen is contained in the waste of every living organism as well as in the decaying organic material plants and animals. – Nitrogen uptake is primarily via ingestion. – Nitrogen is returned to plants through the process of nitrogen fixation that is performed by bacteria involved in the breakdown of dead organic material. Nitrate fixed by bacteria is the primary source of nitrogen available to plants Phosphorus cycle works in much the same way

Human impact on the environment As an industrialized nation we are constantly forced to weigh the effects of manufacturing versus the benefits of the products. Pollution is a term given to a harmful (gas or particulate) substance that is released into the environment. Although some pollution occurs naturally (volcanoes) most pollutants are produced as a result of industry. – There are several different classifications: irritant - causing inflammation and discomfort teratogen - causing birth defects carcinogen - causing cancers

Clean Air Act Proliferation of pollutants depletes our ozone layer, contributes to increased global warming, increases the amount of acid rain, and puts people at risk for health problems. In 1970 the Clean Air Act sought to address 6 of the worst known pollutants. The EPA (Environmental Protection Agency) monitors these pollutants and sets acceptable levels for their release. – CO - Carbon monoxide – NO2 - Nitrogen dioxide – SO2 - Sulfur dioxide – Particulate pollutant – Pb - lead – O3 - ozone

Smog Smog is a term used to describe a collection of pollution that is condensed in a particular area. – generally a brownish color – mostly formed from the burning of fossil fuels – rich in NO2, SO2 andCO2 – creates surface ozone – creates a temperature inversion (top layer warmer than the lower layer) which aids in the trapping of more smog at increasingly lower levels Values Air Quality Descriptor 0.0 to to 50 Good to to 100 Moderate to to 150 Unhealthy for Sensitive Groups to to 200 Unhealthy (8-hr.) to (1-hr.) 201 to 300 Very Unhealthy

Acid Rain Acid rain is created as CO2, NO2 and SO2 mix with water in the atmosphere to create weak acids that return to the Earth's surface as rain. This rain accumulates in the water table and in the fresh water systems where it becomes concentrated killing wildlife, vegetation, and bacteria.

Ozone Depletion Ozone depletion is perhaps the most overlooked environmental hazard. Although the banning of CFCs in the1970s helped slow the thinning of this layer, the depletion continues today. Effects of thinning are: – increased skin cancers – premature aging – plant damage – reduction in the amount of phytoplankton in the oceans

Global Warming Although global warming is vital to the survival of the planet, its rate of increase threatens life. Most scientists will conclude that global warming is a natural process that has cycles of increase and decrease but there are undeniable contributions that we are making that have significantly sped up the process of warming. – Burning of fossil fuels - releases CO2 – Global deforestation - increases CO2 levels – These activities have led to the following consequences: – Rising sea levels – Increased frequency of damaging storms - hurricanes and tornados – Increased frequency of severe weather - heat waves and droughts – Relocation of global crop growing areas