Fig. 5From: Using forest gap models and experimental data to explore long-term effects of tree diversity on the productivity of mixed planted forestsChange in tree density with time, in simulated monocultures and mixtures at the two tested densities (1500 and 750 stems/ha). Plain line: pine trees; dashed line: birch trees. For the mixtures (right panels), the dotted line represents the sum of trees from both speciesBack to article page