Agriculture Reference
In-Depth Information
100
90
80
70
60
50
40
30
20
10
0
0 0 0 0 0 0 0 0 0 0
100
Nitrogen Resorption Efficiency, %
Fig. 10.3
Resorption efficiencies for nitrogen (NRE,
x
-axis) and phosphorus (PRE,
y
-axis) collated
by Yuan and Chen (2009) for a wide range of tree and shrub species representing all growth forms
and regions
100
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0
0510 15 20 25 30 35 40 45 50 55 60 65 70
Latitude
0510 15 20 25 30 35 40 45 50 55 60 65 70
Latitude
Fig. 10.4
Latitudinal trends of nitrogen resorption efficiency (NRE) and phosphorus resorption
efficiency (PRE) for tree and shrub species in Yuan and Chen (2009) for species that had both
measures of efficiency. Although overall there is no correlation between NRE and PRE for a
species, this is because mid-latitude similarities mask the inverse, negative relationships at high
and low latitudes
