Question

Is the Harvard Forest a carbon source or a carbon sink, and how has the net ecosystem exchange (NEE) changed over time?

Answer 1

Answer:

This is strong evidence that suggests that the forest acts as a carbon “sink”: each year, it removes more CO2 from the air than it produces.

Explanation:

Answer 2

There are different sources of carbon. Harvard Forest is known to be a carbon sink.

• Harvard Forest is known to have active C sink that is due to the forest regrowth after land abandonment.

Net ecosystem exchange is known to be negative every year. but the result is shown to be very variable. Result also show a decrease over time and this implies that the forest is removing more CO2 from the atmosphere presently than before.

When you look at the data of the last 25 years, there is a pattern of NEE being negative and also many variability.

Learn more about Carbon sink from

https://brainly.com/question/7150744