Groundwater Pollution by Nitrogen Compounds in Israel
175
_, 6 «
jt
a. i
1 to
1 '·
":
'
/ ^—/ \
\
f
\ \
\ >
\ |
/
(
1
\ *
X
a. ·
U i
a
1 1 1
1'"
(
\
- ^ Λ
LEGEND
- CITRUS QROVE WITH SANDY SOIL PROFILE
- emus GROVE win CLAY SOIL PROFILE
EVERY RESULT IS AN AVERAOE OF TWO
DRIILMOS, UNLESS OTHERWISE SPECIFIEO.
RESULTS RELATE TO OUT SOIL.
0
1 4
NOJppm as N—
1
ε *
Q
n
mI
1
/ /
f \
1
/
f
2
l·
11
H
f *''
/
Ά
/
Fig. 3.
Effect of the type of soil on distribution of Nitrogen compounds
in soil profile, at old citrus groves
BANANAS CULTIVATED WITH MANURE
FIELD CROPS IRRIGATED BY SEWAGE
CITRUS CULTIVATED WITH FERTILIZERS
EUCALYPTUS WOOD
NO ARTIFICIAL IRRIGATION
OR FERTILIZERS
4
6
8
Q _ 10
Uj
1 "
K
1»
30
^—~~—~
X
NO) mg/l as Nitrat* — ►
NO, mg/l as Nitrat, »
Fig. 4.
Effect of various sources of pollutants on nitrate distribution
in soil profile
NO,mg/las Nitratt —
NOTE: ALL RESULTS RELATE TO SOIL
SOLUTION
AND ARE AVERAGES OF TWO DIFFERENT DRU.LNQS
175
_, 6 «
jt
a. i
1 to
1 '·
":
'
/ ^—/ \
\
f
\ \
\ >
\ |
/
(
1
\ *
X
a. ·
U i
a
1 1 1
1'"
(
\
- ^ Λ
LEGEND
- CITRUS QROVE WITH SANDY SOIL PROFILE
- emus GROVE win CLAY SOIL PROFILE
EVERY RESULT IS AN AVERAOE OF TWO
DRIILMOS, UNLESS OTHERWISE SPECIFIEO.
RESULTS RELATE TO OUT SOIL.
0
1 4
NOJppm as N—
1
ε *
Q
n
mI
1
/ /
f \
1
/
f
2
l·
11
H
f *''
/
Ά
/
Fig. 3.
Effect of the type of soil on distribution of Nitrogen compounds
in soil profile, at old citrus groves
BANANAS CULTIVATED WITH MANURE
FIELD CROPS IRRIGATED BY SEWAGE
CITRUS CULTIVATED WITH FERTILIZERS
EUCALYPTUS WOOD
NO ARTIFICIAL IRRIGATION
OR FERTILIZERS
4
6
8
Q _ 10
Uj
1 "
K
1»
30
^—~~—~
X
NO) mg/l as Nitrat* — ►
NO, mg/l as Nitrat, »
Fig. 4.
Effect of various sources of pollutants on nitrate distribution
in soil profile
NO,mg/las Nitratt —
NOTE: ALL RESULTS RELATE TO SOIL
SOLUTION
AND ARE AVERAGES OF TWO DIFFERENT DRU.LNQS