14 - Ecosystem Services Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

tree cover >0.5 hectare, canopy >10% of total area, and a height of growth >5 m UN includes monoculture

A

Forest

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2
Q

sum of all living material, or of all living material of particular species in an area. Living matter, billions of tons, of carbon that is mainly plants

A

Biomass

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3
Q

permanent disturbance/conversion of land to another use, biomass removal, mainly agricultural, secondarily oil and gas, and note that the annual rate in Canada is falling

A

Deforestation

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4
Q

area large enough to retain native biodiversity typically has no signs of fragmentation (by logging or for infrastructure)

A

Intact Forest Landscape

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5
Q

human-caused ecosystem/habitat/species division into small parcels

A

Fragmentation

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6
Q

literally “of the north” is Canada’s commercial logging location and the world’s largest carbon sink

A

Boreal Forest

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7
Q

uses, contribution of ecosystems to human well-being

A

Ecosystem Services

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8
Q

reforestation/afforestation/crops to ameliorate carbon dioxide load

A

Carbon Sequestration

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9
Q

economic values, e.g., berries, maple syrup, fur, medicine

A

non-timber forest product

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10
Q

practice of controlling forest growth, composition, quality, and values farming trees. “growing trees”

A

silviculture

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11
Q

number of huge, long-lived trees, standing dead/logs/multi-layered canopy

A

old-growth forest

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12
Q

natural to managed, is controversial

A

rate of conversion

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13
Q

provincial government establishes theoretical annual increment merchantable timber should reflect the long-run sustained yield (LRSY)

A

annual allowable cut

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14
Q

economic maturity of tree crop 60 – 120 y

A

culmination age

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15
Q

old-growth to second-growth timber as old growth depletes

A

falldown effect

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16
Q

cutting all trees, therefore whatever might regrow or be planted is even-aged
economical and mimics most of natural process (but removes carbon and nutrients) but, an unappealing with environmental impacts (so a point of conflict in Canada)

A

clearcutting

17
Q

planting/reseeding forest, risky (reduced biodiversity, survival not guaranteed)

A

Reforestation

18
Q

site preparation chemicals, quick and easy fix

A

Biocide

19
Q

chemicals for weeds

A

herbicide

20
Q

chemicals for spruce budworm and mountain pine beetle (and others)

A

insecticide

21
Q

volatile compound “scent,” used by insects
of a given species to communicate. making scents to get the bugs and killing them on mass

A

pheronome