Geography Reference
In-Depth Information
2009. So the exchange of matter and energy between patches it wasn't modify (Table 6).
Finally, territorial connectivity presented the highest values of the three cases. This is an
area with few transformations by anthropic uses and that maintains the same vegetation
types in both dates (Figure 8).
45.00
40.00
35.00
30.00
25.00
1975
2009
20.00
15.00
10.00
5.00
0.00
1
2
3
4
5
7
8
11
20
23
Figure 9.
Relative frequency profile of land uses of each year in Cerceda. The codes and the land uses
are the same for Table 6
Number of patches
1975
Code
Land use
2009
20
Agricultural and livestock settlements
6
13
1
Q. ilex
subps.
ballota
Dehesa (high density of scattered trees)
4
5
Q. ilex
subps.
ballota
Dehesa (intermediate density of
scattered trees)
2
8
11
3
Fraxinus angustifolia
Dehesa
2
2
23 Motorways
1
1
Juniperus oxycedrus
subsp.
oxycedrus
,
Q. ilex
subps.
ballota
and
Cistus laurifolius
(high density woodland)
4
4
4
Juniperus oxycedrus
subsp.
oxycedrus, Q. ilex
subps.
ballota
and
Cistus laurifolius
(intermediate density woodland)
5
3
3
Pastures with scattered
Q. ilex
subps.
ballota
y
J. oxycedrus
trees
11
13
11
7
Riparian forest
2
9
8
Shrubby riparian vegetation
7
1
TOTAL
56
62
Table 7.
Fragmentation value of each land use measured as number of patches in Cerceda. This
parameter has been calculated in 1975 and 2009.
