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Tab. 5: Summary of the reference value:
A) both for healthy human nutrition especially with animal food consumption
B) and corresponding sustainable agriculture especially with animal food production
C) with practically no impacts on waste and waste water
Energy
Nutritious matters
Meat
A) H U M A N N U T R I T I O N B) A G R I C U L T U R E
Average
total daily
intake
per capita
%
Share
Animal food consumption
Daily
intake per
capita
Maximum animal
stocks
Animal food production
Maximum animal densities
with optimum conditions
(i.e. nutrient supply of soils)
C) WASTE
AND
WASTE
WATER
1. Energy
2. Protein
% Energy
3. Fat
% Energy
4. Meat
5. Phosphorus
6. Carbohydrates
% Energy
2100 kcal
53g
10-15
70g
25-30
64g
700 mg
275 g
50-60
20
40
50
100
(30)
-
-
420 kcal
21 g
35 g
64 g
(210 mg) Maximum animal unit
(AU) equivalent :
0.1 AU . Capita -1
(= 50 kg animal live
weight)
-
-
Maintenance balances : Practically
no impacts
1. C : 2.0 t ROS . ha-1 . yr -1 of human
nutrition
2. N : Output with yield and
+ (20-) 50 kg N . ha -1 . yr -1 agriculture
on the N
3. P: Output with yield
and P inputs
± 0 kg P . ha -1 . yr -1 into waste
and waste
Maximum animal densities: water
(> 0.4-) 1.0 AU . ha -1
7. Dietary crude fibre
30f
-
-
Re0600
Tab. 6: Impacts of (un-)healthy human nutrition in Germany on the P balance of the total system nutrition
with agriculture, human nutrition as well as waste and waste water management
[Agricultural Area (aa): 16.2 Mio ha; Total area (TA): 35.7 Mio ha.; Capita: 82.2 Mio = 5.1 . ha aa -1 ]
H U M A N N U T R I T I O N
A G R I C U L T U R E
Situations
1. Actually (1993)
unhealthy overnutrition
with energy, esp. animal
protein and fat
(DGE 2000/2001)
2. Future (2015) healthy
need oriented and
realistic nutrition
(Sustainability)
1) P balances of 2000;
W A S T E
W A T E R
Dietary P intake
≡Excretion:
[kg . capita -1. yr -1 ]
0.460
[100]
= kg . aa -1. yr -1 :
2,33
[13]
0.444
[96]
= kg . aa -1. yr -1 :
2.25
[34]
Animal Units (AU)
(1 AU = 500 kg LW)
Absolute
[Mio AU]
20.1 1)
[100]
8.2
[41]
Relative
[AU . capita -1 ]
0.24 1)
=120 kg LW
0.10
=50 kg LW
Input
17.9 1)
[100]
[100]
6.6
[37]
[100]
P – Farm balance (kgP . ha aa -1 . yr -1 )
Output = Input
Saled products
Plant Animal Total
5.3 1) 2.6 1) 7.9 1)
[100] [100] [100]
4.0
[75]
1.1
[41]
5.1
[65]
Surplus
10.0 1)
[100]
Soil: 8.8
Surface water:
1.20
1.5
[15]
Soil: > 1.32
Surface water:
< 0.18 2)
2) Corresponds to the critical levels: 100µg TP/l ; agriculture: 50µg TP/l re0554 rtf
and the critical loads: 300 g TP . ha TA -1. yr -1 ; Agriculture: 180 g TP ha aa -1 . yr -1 of LAWA I / II (1998)