Major Land Uses

Jul 23, 2019

By Ray Massey

Missouri has 44 million acres of land, 64 percent of which is listed as agricultural land. Taking the long view of land use clarifies the impact of agriculture on the environment. The USDA Census of Agriculture has published the number of acres in major land use categories since 1945. Exhibit 2.1 shows that the number of acres in cropland reached a maximum of 21.5 million acres in 1969. Since then, land dedicated to crop production decreased to 15.6 million acres in 2012. The black line in Exhibit 2.1 shows that the amount of land used for crop and livestock production decreased from 36.2 million acres in 1945 to 28.8 million acres in 2012.

Using less land for crop and livestock production has resulted in an additional 6.2 million acres of forestland not grazed and an additional 700,000 acres of parks and wildlife areas.

Exhibit 2.1 — Missouri land uses, 1945–2012

Source: missouri.edu

Video: Sow Welfare and Group Housing Systems - Dr. Laya Alves

In this episode of The Swine it Podcast Show Canada, Dr. Laya Alves from the University of São Paulo, in Brazil, discusses how animal welfare regulations are evolving globally and their impact on pig production systems. She explains challenges in group housing, pain management, and euthanasia decisions, while highlighting the role of training and management in improving outcomes and economic sustainability. Listen now on all major platforms!

"Translating welfare requirements into daily farm routines without compromising economic sustainability remains one of the biggest challenges faced by producers globally today."

Meet the guest: Dr. Laya Alves / laya-kannan is a Postdoctoral Researcher at the University of São Paulo, Brazil, focusing on animal welfare in pig production, including pain management, euthanasia, and economic decision making. Her work integrates welfare science with practical farm management and sustainability. She collaborates globally to develop applied tools for producers.