Question

how do biogeochemical cycles in agroecosystems differ from those in natural ecosystems?

Answer 1

Because of human intervention, the former tend to be simpler and more predictable, because fewer organisms--crops or animals--are involved and everything is monitored/

Answer 2

Answer:

Biogeochemical cycles in agroecosystems differ from those in natural ecosystems in terms of sources of nutrients.

Explanation:

Biogeochemical cycling of nutrients in nature depends on the availability of nutrients as released by the process of decomposition of dead and decaying living organisms. Decomposition releases the nutrients back into the system to be reused by other organisms. In agroecosystem, human add nutrients in the form of fertilizers as nutrients are lost from the system in the form of the mature crop which is removed for human use.