Used planet a global history - ELLIS

Question 1

Models are spatially explicit when….

Answer 1

They combine a population simulator with a landscape map that describes the spatial distribution of landscape features.

Question 2

Ellis measured..

Answer 2

Effect of changing landscape features on population measured.

Question 3

Hyde and KK10

Answer 3

Hyde - Human land use not significant before 1750.

KK10 - Changes far before Holocene, 20% of woods used before 1000B.C planet recovering from previous intense land uses.

Question 4

Hyde focused on… KK10 focused on..

Answer 4

Hyde focuses on - Cultivated land, pasture and urban areas.

KK10 is more general land use, shifting cultivation and forest harvest along with agricultural land use.

Question 5

What are caveats

Answer 5

Warning or proviso of specific limitations or decision

Question 6

Intensification

Answer 6

As population increases more extensive land use practices are adopted to sustain them.
Green revolution 1950

Question 7

Research showing….(human use of land…)

Answer 7

Research showing human use of land has transformed the terrestrial biosphere has led scientists to suggest land use intensification could be a catastrophe for humanity and the biosphere.

Question 8

Ellis evaluated…. and found..

Answer 8

Ellis evaluated global land use and population data sets and finds that contrasting models for previous land use are useful for current land use plannings but no single Holocene model can make entirely accurate global predictions.

Question 9

Data suggests… land use..

Answer 9

Data suggests land use intensification could mean the world is recovering from land use in the Holocene

Question 10

Agricultural landscapes tend to be most profoundly effected by..

Answer 10

Land cleaning
Soil tilage
Increased erosion and runoff
Nutrient enrichment
Domesticated and invasive species.

Question 11

Next few years will test..

Answer 11

Earths capacity to support increasing population, could eradicate holocene impacts with new advances. Need society/economy to benefit whilst changing impacts..