What do negative net primary productivity values mean?
In this exercise, you will explore net primary productivity across the globe and study patterns of deforestation in different regions of the world.
NET PRIMARY PRODUCTIVITY
Go to https://earthobservatory.nasa.gov/global-maps/MOD17A2_M_PSN (Links to an external site.)
1. What do negative net primary productivity values mean?
Use the arrows that accompany the map to play the animation.
2. The northern part of South America has high positive net primary productivity year round. Why?
3. In the United States, the net primary productivity is lower in the Southwest than in the Northeast year round. Why?
Go to NOAA’s Earth System Research Laboratory at https://www.esrl.noaa.gov/gmd/ccgg/trends/ (Links to an external site.) to see Trends in Atmospheric Carbon Dioxide.
4. How do monthly mean CO2 concentrations change over the course of one year at Mauna Loa Observatory in Hawai’i? Explain this pattern.