Ecosystems lecture 3

Ecosystems lecture 3 - Ecosystems(3 The Carbon Cycle And so from hour to hour we ripe and ripe And then from hour to hour we rot and rot And

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Ecosystems Lecture 3 1 Ecosystems (3) The Carbon Cycle And so from hour to hour we ripe and ripe, And then from hour to hour we rot and rot; And thereby hangs a tale. Shakespeare, As You Like It II.vii.(14–28) Questions to answer 1. What are the processes that move carbon into and out of biomass, and how do these affect the distribution and storage of carbon in ecosystems? 2. What are the major pools of carbon? 3. What are the fluxes that transfer carbon from the atmosphere to the biosphere (land and water)? What controls these flux rates? 4. What are the fluxes that transfer carbon from the biosphere (land and water) to the atmosphere? What controls these flux rates? 5. What is soil organic matter? 6. How are humans changing both pools and fluxes? Biological processes govern the transfer of carbon into ecosystems CH 3 CH 2 CH 3 Photosynthesis: ‘fixation’ of atmospheric CO 2 into biomass C X Respiration: release of bond energy to power metabolic processes Flow of carbon = Flow of energy = Flow of biomass CO 2 CO 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ecosystems Lecture 3 2 Key terms in carbon/energy flow Gross Primary Production (GPP): total Photosynthetic input Net Primary Production (NPP): all energy/C available to consumers NPP = GPP – Plant respiration Net Ecosystem Production (NEP): all C available for ecosystem
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/18/2011 for the course ECOLOGY 351 taught by Professor Staff during the Spring '11 term at Rutgers.

Page1 / 8

Ecosystems lecture 3 - Ecosystems(3 The Carbon Cycle And so from hour to hour we ripe and ripe And then from hour to hour we rot and rot And

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online