ES 200 2/11(test 2/13)

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Flashcards on ES 200 2/11(test 2/13), created by Jacob Sipple on 06/02/2020.
Jacob Sipple
Flashcards by Jacob Sipple, updated more than 1 year ago
Jacob Sipple
Created by Jacob Sipple over 4 years ago
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Question Answer
area subject to flooding(3 parts within) flood plain(natural levee, backplain, backswamp)
levee constructed mounds along a channel that keep flood waters off flood plain
why is New Orleans susceptible to flooding located between lake and river, as well as channels coming into the city, levees failed
top 3 global land uses 27% livestock, 26% forest, 19%barren land
which land uses are high risk if global temps increase permafrost loss, food supply instability
China and India Ag use % compared to US % of arable land US 40-50% china: 50-60 india 60-70
how does heat affect crop yield every 2 degrees about -15bushels per acre(120ish is typical) more droughts and less pollination
how will crop production change as temp rises moves north
which northern countries would benefite most from global warming based on ag canada and russia
nitrogen cycle
denitrification, what conditions allow it to occur anaerobic, converts NO3 to N2, when not going to completion produces N2O instead(when organic matter is eaten in anaerobic condition) same as CH4 but instead of CO2 there is NO3 main reason because leach into groundwater
3 major consumers of nitrogen fertilizer China, India, US
GHG emissions from food production 35%(1/2 from livestock)
how much food is wasted in uss ~42%
heat island urban areas, due to reduced albedo can be up to 10F higher than other areas
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