Agroecosystems Vs Natural Ecosystems
Agricultural biodiversity has spatial, temporal and scale dimensions especially at agroecosystem levels. These agroecosystems - ecosystems that are used for agriculture - are determined by three sets of factors: the genetic resources (biodiversity), the physical environment and the human management practices. There are not many ecosystems in the world that are "natural" in the sense of having escaped human influence. Most ecosystems have been to some extent modified or cultivated by human activity for the production of food and income and for livelihood security. However, most agricultural areas can be returned to their natural landscape after subsequent generations.
Read more about this topic: Agricultural Biodiversity
Famous quotes containing the word natural:
“Reason is natural revelation, whereby the eternal father of light, and fountain of all knowledge, communicates to mankind that portion of truth which he has laid within the reach of their natural facilities: Revelation is natural reason enlarged by a new set of discoveries communicated by God immediately, which reason vouches the truth of, by the testimony and proofs it gives, that they come from God.”
—John Locke (1632–1704)