Sweeping study of US farm data shows loss of crop diversity the past 34 years

U.S. farmers are growing fewer types of crops than they were 34 years ago, which could have implications for how farms fare as changes to the climate evolve, according to a large-scale study by Kansas State University, North Dakota State University and the U.S. Department of Agriculture. Less crop diversity may also be impacting the general ecosystem.
“At the national level, crop diversity declined over the period we analyzed,” said Jonathan Aguilar, K-State water resources engineer and lead researcher on the study.
The scientists used data from the USDA’s U.S. Census of Agriculture, which is published every five years from information provided by U.S. farmers. The team studied data from 1978 through 2012 across the country’s contiguous states.

Source: Sweeping study of US farm data shows loss of crop diversity the past 34 years

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