Geography Reference
In-Depth Information
(a)
Cultivated land
Forestry area
Grassland
Built-up area
7000
6000
5000
4000
3000
2000
1000
0
year
(b)
(c)
Forestry area (managed)
Forestry area (unmanaged)
Forestry area
Grassland (grazed
)
Grassland (other)
Grasslan
d
6000
2500
5000
2000
4000
1500
3000
1000
2000
500
1000
0
0
2010 2015 2030 2045 2060 2075 2095
year
2010 2015 2030 2045 2060 2075 2095
year
Fig. 3.2 Land use change trends of China under BAU scenario during 1990-2095; a Land use
change trends of cultivated land, forest land, grassland and built-up land; b trends of managed and
unmanaged forest land; c trends of grazed and other grassland (1,000 km
2
)
grassland grows obviously. Under this scenario, it can be seen that explored
grassland has been seriously damaged due to overgrazing.
Land Use Change Under CES Scenario
Under CES scenario, the speed of socio-economic development slowed down.
Driven by socio-economic factors, simulation results of land use change trends are
obtained with GCAM model (Fig.
3.4
).
