terrestrial ecology
TRANSCRIPT
![Page 1: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/1.jpg)
Terrestrial Production Processes
Prepared by: Nikki Rose D. Dapanas
BS Environmental Science III
Prof. Magdalyna Dulay
![Page 2: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/2.jpg)
Course Outline:Chapter 1:Terrestrial Production Processes
OverviewGross Primary Production (GPP)
Plant Respiration
![Page 3: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/3.jpg)
Course Outline:Chapter 1:Terrestrial Production Processes
Net Primary Production (NPP)
Net Ecosystem ProductionNet Ecosystem Exchange
![Page 4: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/4.jpg)
Overview…The balance between gross primary production and ecosystem respiration determines the net carbon accumulation by the biosphere.
![Page 5: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/5.jpg)
Overview…This chapter describes the factors that regulate the carbon balance of terrestrial vegetation and ecosystems.
![Page 6: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/6.jpg)
Gross Primary Production (GPP)… total influx of carbon into an ecosystem through the photosynthetic fixation of CO2
![Page 7: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/7.jpg)
![Page 8: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/8.jpg)
Plant Respiration…
provides the energy for a plantacquire nutrients
produce & maintain biomass.
![Page 9: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/9.jpg)
Net Primary Production (NPP)…gross carbon influx discounted for plant respiratory costs of growth and maintenance.
NPP= GPP-Respiration(Plant)
![Page 10: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/10.jpg)
![Page 11: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/11.jpg)
major carbon fluxes of an ecosystem. Carbon as GPP, through photosynthesis by plants. Roots and aboveground portions of plants return about half of this carbon to the atmosphere as plant respiration (Rplant).
![Page 12: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/12.jpg)
![Page 13: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/13.jpg)
Net Ecosystem Production (NEP)…measure of the rate of carbon accumulation in ecosystems
![Page 14: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/14.jpg)
Net Ecosystem Production (NEP)…correlates more strongly w/time since disturbance than w/ environment
![Page 15: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/15.jpg)
Net Ecosystem Exchange (NEE)…provides a direct measure of the net CO2
exchange between ecosystems and the atmosphere.
![Page 16: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/16.jpg)
![Page 17: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/17.jpg)
![Page 18: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/18.jpg)
Measuring GPP and NPP
Meteorological towers
SatellitesOther remote sensing devices
Figure 2: Meteorological towers like this one located in a temperate forest are distributed across ecosystems in all continents except Antarctica, providing assessments of carbon uptake by forest, grassland, desert, and crop ecosystems.
![Page 19: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/19.jpg)
Terrestrial Primary Production and Global Changeclimate change is affecting the primary production of terrestrial ecosystems & conversely
![Page 20: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/20.jpg)
Terrestrial Primary Production and Global Changeecosystems may moderate changes in global climate by absorbing anthropogenic CO2 emissions.
![Page 21: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/21.jpg)
Terrestrial Primary Production and Global Changeimportant
ecosystem servicelocking up carbon in biomass that might exist in the atmosphere as CO2
![Page 22: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/22.jpg)
Terrestrial Primary Production and Global Changeterrestrial NPP may be declining in response to global warming and accompanying drought
![Page 23: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/23.jpg)
Terrestrial Primary Production and Global Changereduce carbon sequestration by terrestrial ecosystems
![Page 24: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/24.jpg)
Terrestrial Primary Production and Global Changecompromise food
security disrupt the foundation of food webs.
![Page 25: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/25.jpg)
What can we do?Reduce Anthropogenic CO2 emissions !!!
![Page 26: Terrestrial ecology](https://reader033.vdocuments.us/reader033/viewer/2022042700/5591d14e1a28ab964a8b4618/html5/thumbnails/26.jpg)
Thank You For Listening…
GOD BLESS EVERYONE