課程名稱︰生態學
課程性質︰必修
課程教師︰張文亮
開課系所︰生工系
考試時間︰94.4.22
試題 : ecology midterm
2005.4.22
A.MULTIPLE-CHOICE(30%)
1.according to the 3/4 power principle,respiration rate per unit
weight of a 100kg animal is about
(1)0.032 2)0.32 3)3.2 4)32kg CO2/kg.
2.calcium concentration in streamhead of a watershed is 200 kg/day,
however,30kg/day will be retained by stream biology metabolism .
then,the cycling index of watershed is 1)6.7 2)2.35 3)0.15 4)0.01
3.a soil plow machine can increase farm benefit $1000/month,but decrease
$1500/month by compact soil to form hardpan,so net energy is
1)0.67 2)1.5 3)2.5 4)0.14
4)suppose a pig increase 1 kg body weight by feed 10 kg food,production
efficiency is
1)10 2)5 3)1 4)0.1
5)calculate ecological footprint for a city of 1 million people living
in an area of 10000ha
1)0.1 2)0.5 3)1.0 4)10.0
6)a greenhouse contain CO2 in air about 850mg/平方公尺 ,crop using CO2
about 50 mg/平方公尺 turnover rate is
1)1.4 2)1.1 3)0.4 4)0.06
7.a crop transpires 1000 kg of water to increase 1 kg of biomass .
transpiration efficiency is
1)o.001 2)1000 3)0.1 4)10
8.concentration of Cu in seawater is 0.5 mg/kg ,and clam body is 5mg/kg,
so concentration factor is
1)0.1 2)1 3)5 4)10
9.one joul of fossil fuel can product 0.25 joul of electricity.so eMergy
of the electricity is equal to
1)2000 2)4000 3)6000 4)8000 solar energy
10.dissolved oxygen concentration in light bottle adn dark bottle is 5.0
mg/l and 1.0 mg/1,respectively . photosynthesis is
1)5.0 2)1.0 3)6.0 4)4.0 mg/l.
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