时间:2018-12-27 作者:英语课 分类:英语时差8,16


英语课

 Don: Time to go again to the A Moment of Science mailbag. A listener writes:


     Dear Don & Yaël, 
     I've been reading a lot about climate lately, and I know that the earth stores lots of   carbon in different places, like in the ocean and in plants. Are there any other major carbon stores?
Yaël: Great question. And the answer might surprise you. While plants and oceans do store a lot of carbon, much of the planet's carbon is stored in soil. When forests and crops and other plants absorb carbon dioxide from the atmosphere, they channel      most of it into the soil.
D: Hmm...So I guess the next question is, does global warming have any affect on this soil-carbon-capture system?
Y: Actually, it does. When soil warms, the microorganisms in it grow feistier and eat more of the carbon stored in soil. When all those millions of tiny organisms aspirate,  or breathe, they release that carbon back into the atmosphere in the form of carbon dioxide...
D: Which is the main greenhouse gas that causes global warming. So warming soil  creates a sort of global warming feedback loop-- the warmer soil gets, the more CO2 it releases.
Y: Right. But there are things we can do to stop or at least slow the process. For example, farmers could increase the amount of carbon stored in soil by planting more cover crops, like legumes, that protect and enrich 1 soil between harvests. Farmers can also do less tilling, because stirring up soil riles its microorganisms and makes  them consume more carbon. So keeping more carbon in soil is good for the atmosphere, and good for the soil.
D: So it's a win-win.
Y: Right.  

1 enrich
vt.充实,使丰富,使富裕,使富有
  • Some cream will enrich the sauce.在调味汁里加一些奶油会使其味道更加丰富。
  • Music can enrich your life.音乐能丰富你的生活。
学英语单词
-orexia
abrasive hardness test
absorption current of dielectric
accommodation land(s)
Aconchada
apex point
Ba Ria
baby killers
baradar
be prepossessed by
begaumed
block floating point
cell division cycle gene
centrally planned economy
cermet of life-saving appliance
coarse-filter
combined air force
computer security verification
concrete tubular pile
cone-bearing tree
counterpropagandizing
cycloid curve
deffontaines
diethyl dichlorosilane
double-cup insulator
dresioside
ensors
estres
ethyl myristate
fingernail clam
flash light buttery
frequentflier.com
Fuirena ciliaris
genus Leucaena
half cross belt
hand-pull
have worms
hillside hitch
hook cant
hypercritic
interpretation of data
kayser-fleischer rings
leadership styles
leuco-
line telegraphy
low politics
lung fish
Luzula spicata
Manglietia conifera
market gardeners
mesocycle
microlepia marginata
Mignano
MINIA
moko-moko
mouse-deer
mousquetaire cuff
multidiameter boring cutter
multinomially
naming container
neatresse
Nicoya, Pen.de
nonactivated
nonperishable cargo
Obergriesbach
oconee bellss
optical density of cloud
over-and-over
ovula Nabothi
pall-bearer
planar growth
power density profile
programme step
re-imposed
resenteth
riyaq (rayak)
Sahelian
sake-cake
satellite telecommunication with automatic routine
Severo-Baykal'skoye Nagor'ye
sheet casting
sitherope
solar cell connection
staff light
statisitic reception
sulfide ion
supplicants
Sǒnch'ǒn
tablet
testing medium
tiemaker
to the manner born
trip coil
true equinox
undulated fibrous texture
unoriented crystalline polymer
value expressive function
vanadium tribromide
vapour diagram
versatile pulse shaper
Waleys