quick study

Question 1

Mor soil

Answer 1

poor and infertile. Only an ectorganic layer (i.e., litter on top of the mineral soil).

Question 2

Moder soil

Answer 2

intermediate fertility. Ah horizon (Layer where the mineral soil is mixed with humus), with darker humus incorporated in the mineral
layer.

Question 3

Mull soil

Answer 3

rich and fertile soil. A deep Ah horizon (Layer where the mineral soil is mixed with humus) well, mixed, with a lot of bioturbation

Question 4

use of Mg for plants

Answer 4

crucial component of chlorophyll, therefore important for photosynthesis

Question 5

use of Ca for plants

Answer 5

ntegral component of cell membrame and cell wall

Question 6

use of K for plants

Answer 6

important for enzyme activity and stomatal regulation, and thus for carbon gain and water loss

Question 7

polycarpic/monocarpic

Answer 7

wether reproduction is continuous or a one time event for a species

Question 8

hermaphroditic

Answer 8

bisexual flowers

Question 9

monoecious

Answer 9

male and female flowers on the same plant. relatively rare, palms, figs and euphorbiceae

Question 10

diocious

Answer 10

eperate male and female trees. more common in tropics than temperate forests.

Question 11

orthodox seeds

Answer 11

seeds that can be stored for long time, usually low seed water content (<7%)

Question 12

recalcitrant seeds

Answer 12

rapid germinating seeds that can’t handle drying out. should not be used for reforestation. examples common oak and horse chestnut

Question 13

net carbon balance

Answer 13

gross photosynthesis minus respiration

Question 14

respiration

Answer 14

portion of assimilated C that is burned again to support leaf metabolic processes

Question 15

Amax

Answer 15

max photosynthetic capacity, varies with growing conditions