EESC3310 Lecture Notes - Lecture 1: Pioneer Species, Soil Salinity, Fertigation
25 Apr 2017
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Document Summary
Increase eutrophication and habitat destruction loss of ecosystem services and species extinctions. Increase food production has correlated with increased global nitrogen and phosphorus fertilizer and irrigation. Rapid ag expansion is coming to an end. N can become ammonia in atm, eutrophication, loss of biodiversity, groundwater. Land-use planning to deal with animal waste, ag waste, and ag land. Need to preserve all types of ecosystems pollution, acidification of soils and freshwaters. The case for a fundamental change in agriculture. To characterize major advances of industrial ag that has led to increase in food production. To describe environmental effects of these advances. First person to observe that human population growth was exponential while growth in food yields was linear. At some point, therefore, human growth will outgrow food supply. After early 1900s/ir yields drastically increased due to technological advances. Acreage has remained pretty constant while yield has increased productivity increase. Abundant food supply in the developed world.
