Unit 4.1 Ecosystems AICE Environmental Management

gross primary productivity

TOTAL gain in biomass/energy per unit time

net primary productivity

gain in biomass/energy per unit time AFTER respiratory loss (energy used to keep animals alive then released as heat AKA respiratory energy)

primary succession

on newly formed habitats w/ no existing community (glaciers/volcano)

secondary succession

on sites that previously supported communities (hurricane)

ecosystem productivity

rate of production of biomass for an ecosystem

tundra soil

thin w/ permafrost underneath

tundra climate

mild summers & cold winters around 90 degrees

tundra vegetation

herbs, lichens, mosses

grassland climate

cold winters, hot summers around 40-50 degrees

grassland soil

rich in org matter

grassland vegetation

tall/wet/humid grass & short/dry/hot grass

tropical forest climate

hot & humid around 0 degrees

tropical forest soil

thin layer fertile

tropical forest vegetation

nuts, coffee, chocolate

desert climate

dry/hot days & cold nights around 30-60 degrees

desert soil

thin & porous

desert vegetation

scattered shrubs

cold desert climate

short summers

cold desert soil

alkaline

cold desert vegetation

rocks w lichen