assessment of changes in the phosphorus status of forest ...
assessment of changes in the phosphorus status of forest ...
assessment of changes in the phosphorus status of forest ...
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Fig 8: Mixed l<strong>in</strong>ear model describ<strong>in</strong>g <strong>the</strong> decl<strong>in</strong>e <strong>in</strong> P concentrations <strong>in</strong> 1 yr-old<br />
needles <strong>in</strong> Scots p<strong>in</strong>e at three sites <strong>in</strong> Lower Saxony. The year 0 on <strong>the</strong> x-axis<br />
equates to 2000. Dark (red) l<strong>in</strong>e: overall trend (fixed part <strong>of</strong> <strong>the</strong> model), pale<br />
(green) l<strong>in</strong>e: s<strong>in</strong>gle plot deviation from <strong>the</strong> overall trend (random part <strong>of</strong> <strong>the</strong><br />
model), circles = observed needle P concentrations. Model: P