ES 200 2/11(test 2/13)

Questão	Responda
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	Image: Nitrogen (binary/octet-stream)
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

Resumo de Recurso

	Criado por Jacob Sipple mais de 4 anos atrás