Applied geomorphology and arid regions
497
Salinity
ppt
500
km
J
___
--- ---~ _ =..... ~_
\
.
\
e'ee*
~ ee
~
e
e~
'
|
!
100
200
.....
1
....
2
3
------4
Figure 19.33. Casamance River salinities as a function of distance (in km) upstream from the mouth
(Pages, CRODT, Dakar, Senegal). The ordinate is in parts per thousand (ppt). Seawater salinity (35 ppt) is
shown as a horizontal line. 1 October 1968; 2 July 1969; 3 May 1984; 4 September 1984. (After Farmer
and Wigley, 1985); in Mainguet, 1991, Fig. 44).
Figure 19.34. Experimental plot for the study of water erosion. Four years after its set-up, more
vegetation was found inside than outside the plot, which became affected by overgrazing by sheep and
goats. Mishor Adumin, Judean Desert, Israel.
497
Salinity
ppt
500
km
J
___
--- ---~ _ =..... ~_
\
.
\
e'ee*
~ ee
~
e
e~
'
|
!
100
200
.....
1
....
2
3
------4
Figure 19.33. Casamance River salinities as a function of distance (in km) upstream from the mouth
(Pages, CRODT, Dakar, Senegal). The ordinate is in parts per thousand (ppt). Seawater salinity (35 ppt) is
shown as a horizontal line. 1 October 1968; 2 July 1969; 3 May 1984; 4 September 1984. (After Farmer
and Wigley, 1985); in Mainguet, 1991, Fig. 44).
Figure 19.34. Experimental plot for the study of water erosion. Four years after its set-up, more
vegetation was found inside than outside the plot, which became affected by overgrazing by sheep and
goats. Mishor Adumin, Judean Desert, Israel.