时间:2019-01-02 作者:英语课 分类:(科普英语)Earth and Sky


英语课



Fire Regime 火

Fire was a creation of life -- born from oxygen and organic matter -- ignited by lightning. Thus fire has been a fundamental feature of the Earth for at least 400 million years. A scientist talks about fire -- today on Earth and Sky.

JB: This is Earth and Sky, speaking with fire expert Steve Pyne, in the Biology and Society program at Arizona State University in Tempe.

Steve Pyne: Fire looks the way it does on Earth today because of what people have done and not done, the ways we've started fires, the ways we've stopped them, or tried to stop them, the ways we've moved fuel around. That is to say, we create fuel and can put in fire where it would not naturally occur or under different rhythms or patterns, what you would call regimes.

JB: The "fire regime" is a concept Dr. Pyne uses to describe the range of fire.

Steve Pyne: It describes the pattern of fire that appears on the land. So that it may refer to the typical frequency of the fire, the seasonal 1 timing 2 of the fires, the intensity 3 of the fires, the geographic 4 size of the fires. In other words, fire appears in particular ways. And if you look at the ways that it appears, then you can begin describing a fire regime in the same way you can think of a precipitation regime.... And individual fires appear within a regime much like individual storms do within a climate.

JB: More -- tomorrow. Our thanks today to the Bureau of Land Management and to the National Fish and Wildlife Foundation -- supporting the conservation of native fish, wildlife, plants and their habitats. I'm Joel Block for Earth and Sky.


adj.季节的,季节性的
  • The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
  • The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。
n.时间安排,时间选择
  • The timing of the meeting is not convenient.会议的时间安排不合适。
  • The timing of our statement is very opportune.我们发表声明选择的时机很恰当。
n.强烈,剧烈;强度;烈度
  • I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
  • The strike is growing in intensity.罢工日益加剧。
adj.地理学的,地理的
  • The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
  • Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法
学英语单词
absorption by impurities
angular correction
antipodean
applicatively
bath mi(t)zvah
big-house
biographic
Boston Bay
brigandisms
calotypist
canadite pegmatite
castello di annone
chenal
chosed
claim representative
complementary colo(u)r
coni medullaris
control characteristics
Crag fungicide 34IB
culvertship
dentaria bulbiferas
deprepositional
desquamative exfoliative erythema
diffuse vesicular emphysema
Ding an sich
disciplinary penalty
disk conveyer
dtf (define the file) macro instruction
dual modulation
element step
field-scale
flange focal distance
flitters
flow brazing
Fluroplast-4
gang capacitor
genus Cnemidophorus
greenfinger
herba swertiae dilutae
high-level cyclone
homographs
horizon scanner
horizontal centering alignment
interstitial irradiation therapy
khiton
knew nothing about
ladany
latex cells
m payment
medico-
musculophrenic vein
natural order
nature of friction
Nervus tibialis
night-sky camera
oleuropeins
ore band
osay
oscillating motor
pandaemoniums
partial eclipse beginning
perfluorooctanesulphonyl
plebeia
plethysmographical
porous-type reservoir
program channel
pseudo crossbedding
Puppie
qugate
quotidially
radiocolloid
reader-sorter
result of hydraulic test
rimal
road surface treatment
semidirect
seven-a-sides
shooting distance
sticky foam
stinking nightshades
store-and-forward message switching center
stormflap
stretch straightening
subsidary
table driven interpreter
tearresistant
television film leader
terminal changer
theopompa ophthalmica
tubo-uterine
twelfthest
tyrosinyl
unhandy ship
uzbekistans
van der waalss
volatile grade
vulvovaginal anus
warren-tricomi
wave channel
whistling in the dark
woodshops