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
a ray of
alienatory
Ammoket
anthomaniac
arteria circumflexa scapulaes
auti-fouling coat
bacul-
basic training
be buried under
cereal food
channel for orders
commaund
corporate gang
crocein scarlet 3b
current-cost accounting
d-va
data aggregate type
deep sea mining vessel
Deutsch-Wagram
discipline of tribunal
donts
downhole water flow regulator
dried whole egg
dye beck
edgar rice burroughss
ERGO-Shell
ethnocinemabography
everything to
fev
final subcircuit
finger baffle
finite population correction factor
flexile
freon chiller unit
Furmanov
genus acacias
grease squirt
heavy gas
high concentration hydrochloric acid treatment
high-voltage testing transformer
homoamino acid
housing gasket
hybrid released translation
Khairabad
knocking on wood.
Lenetran
luzzu
main breadth line
make it clear
matt-finisheds
metacromia
microbooster
microcassette recorder
minimarathons
Mphoengs
musayev
my memory
Nexus One
Nihālpur
oeq
phoenix club
planned distributing
postglacial epoch
prelatize
Privas
rachigrap
reduced system of residues
rethinkable
rsjc
salsolinol
sea-captured streams
second helpings
semi-elastic subgrade
semisimple module
short moderate swell
sialons
smokehouses
solar thermal power plant
sowerbyella pallida
spinalized
Spirochaeta eberthi
stercoraceous vomiting
steroid glycoside
storage list
struggle into
subcutaneous test
subeditor
Tadjena
tegel
terminal buttons
tetragnatha praedonia
Tokary
tom collinss
tools for machine tools
total bacteria count
trace of precipitation
UIML
uninserted
unpavilioned
upgird
visual pass
warehousing charge