Tree phenology time table???

[jms_peake]

Doing my RFS and need to write a report on a year in the life of a tree, going through the annual cycle...i know the stages but need to do it month by month, so after a general time table of the annaul cycle, bit more specific than spring, summer, autumn and winter. any ideas???

 

cheers

James

[RobArb]

tree species?

 

Sent from Rob's GalaxySII

[treebloke]

James, are you doing your RFS on line or at college.

[jms_peake]

online, was thinking sessile oak....

[Gareth jones]

online, was thinking sessile oak....

 

There are 5 main periods of the tree calendar in our temperate climate required for the RFS..

 

1. Onset of growth.

2. Formation of leaves.

3. High photosynthesis.

4. Formation of wood and storage of energy.

5. Dormacy.

 

There is some good definitions for "Pheneology" on Wiki. Phenelogy does'nt just apply to tree's but also used to describe natural procceses involving animals that are an effect of seasonal changes.

[Gareth jones]

There are 5 main periods of the tree calendar in our temperate climate required for the RFS..

 

1. Onset of growth.

2. Formation of leaves.

3. High photosynthesis.

4. Formation of wood and storage of energy.

5. Dormacy.

 

There is some good definitions for "Pheneology" on Wiki. Phenelogy does'nt just apply to tree's but also used to describe natural procceses involving animals that are an effect of seasonal changes.

 

forget that.. should have read your first coment to the end

[Gareth jones]

There is alot of information in "Trees; their natural histor" if you can get a copy. I did a Anual life cycle of an Aesculus hippocastanum.. you could tie them all together under this format using the headings;

 

Seed - showing type of seed

Germination - When? and what conditions/need to start the process?

Vegative/juvenile growth stage - how long before it starts flowering/producing.

flowering stage and pollination - Type of flowers eg.g hemaphrodite, monoecious, dioeceus, and how they are pollinated?.. when?

Fertilization - What happens to the flower after fertilization? when?

Seed set and dispersal - Type of fruit... e.g. false fruit, true fruit, dihescent dry. The type would indicate the dispersal method. and when?

 

Then add where each of the life cycle stages apply to the Phenology periods.

[jms_peake]

Yeah I got that bit, but I mean what months do they change? Not just spring, summer etc....

[Gareth jones]

Yeah I got that bit, but I mean what months do they change? Not just spring, summer etc....

 

that would be dependant on the species.. for example. if you knew the species of tree and when its leaves formed. you could say when period 3 would start. and if you knew when it started shedding you know when it would be preparing for 5 Dormancy. its more of a transition of periods and months. it cant be exact because the weather is different each year. like a cold spell in the start of spring might delay bud burst and leaf formation.

[jms_peake]

Got ya now, thought there might have been a rough guide... cheers tho gareth