GEO 350 Lecture 15: 15. Heartland
Document Summary
Rainy season = growing season (april to nov) Formed under moderate moisture & coniferous/mixed forests. Soils lose alot of minerals when moist. Chicago river reversal (st. paddy"s green river) Hydraulic building of erie canal & chicago river. Late 19th early 20th century: european immigration to cities. Corn best suited for midwest land; ensures good economic return. Silage, oats, barley, hay crops support large dairy herds. Large % of us dairy products: country"s cheese. Heavy manufacturing concentrated through ohio valley and along southern shores of great lakes; also around. Agricultural heartland (nw, w, & s) blends with. Portion of country containing economic, political, intellectual, and cultural foci. Convert lots of raw materials into products of higher value. Small acreages of hi = massive percentages of overall production. Economic core, largest city, major industrial centers, Urban center; overcame unfavorable characteristics and evolved to prominence. Established on swampy margins = pest habitat & bad water.
