. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. AGRICULTURAL LANDS 5000 t 4500 4000 -g 3500 - © 3000 --. ^ 2500 -[ £ 2000 -j u 5 years), intermediate (3-5 years), and short-term (1-2 years) contracts. Source: Illinois Department of Agriculture. of fruit (primarily peaches and apples) has also declined moderately during the 1980s (data for fruit and vegetable production from the Department of Commerce, Bureau of the Census). Although 50% of t
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. AGRICULTURAL LANDS 5000 t 4500 4000 -g 3500 - © 3000 --. ^ 2500 -[ £ 2000 -j u 5 years), intermediate (3-5 years), and short-term (1-2 years) contracts. Source: Illinois Department of Agriculture. of fruit (primarily peaches and apples) has also declined moderately during the 1980s (data for fruit and vegetable production from the Department of Commerce, Bureau of the Census). Although 50% of the state's land is used to produce corn and soybeans, which are primarily used for livestock feed, the number of cattle and hogs has declined over the past 30 years (Figures 18-20). These trends have been followed by decreases in the amount of farmland and woodland grazed (Figures 21 and 22). Livestock production is highest in western and north- western counties. Trends in Pesticide Use Chemical pollution on farmland results from applica- tions of pesticides (primarily herbicides and insecti- cides). Unlike a point-specific source of pollution, such as an industrial smokestack, agricultural pollution originates over multiple fields and farms when agrichemicals and topsoil move off the site of applica- tion through air and water. Such nonpoint-source pollution has become a serious problem over the past few decades—both on farmland and in other terrestrial and aquatic environments. Use of such chemical compounds has increased dramatically since World War II. However, the active. Figure 6. Percent change in amount of farmland diverted from crops in Illinois counties, 1964 to 1987. Sources: Department of Commerce. Bureau of the Census; Department of Agriculture, Soil Conser- vation Service: Illinois Department of Agriculture. 71. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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