Why are agricultural areas so important for biodiversity conservation?
Agriculture is the most dominant human influence on earth. Nearly one-third of the world’s land area is heavily influenced by cropland or planted pastures. An even greater area is being fallowed as part of an agricultural cycle or is in tree crops, livestock grazing systems, or production forestry. In addition, most of the world’s 100,000+ protected areas contain significant amounts of agricultural land. And over half of the most species-rich areas in the world contain large human populations whose livelihoods depend on farming, forestry, herding, or fisheries. Agriculture as it is often practiced today threatens wild plant and animal species and the natural ecosystem services upon which both humans and wildlife depend. Over 70% of the fresh water withdrawn by humans goes to irrigation for crops, causing a profound impact on the hydrological cycles of ecological systems. Moreover, fertilizers, pesticides, and agricultural waste threaten habitats and protected areas downstream. Landclea
