Agroforestation of Grasslands in Southeast Asia: WaNuLCAS Model Scenarios for Shade-Based Imperata Control During Tree Establishment - Smallholder Tree Growing for Rural Development and Environmental Services - page 140

(adjacent to tree), lead to dramatic improvement of predicted tree growth over the
'no weeding' simulations. P. falcataria was the only species predicted to get on top
(literally) of Imperata without weeding (Fig. 6.4). This effect was largely independent
Fig. 6.4 Predicted development of tree diameter of four species from 12 to 120 months after
planting at different systems (with and without crop), different weeding regime (total, partial and
no weeding) and at different tree spacing, narrow (timber trees: 4 × 2, 3 × 3, 4 × 4 m; rubber: 6 ×
3, 5 × 3, 4 × 4 m) and wide spacing (timber trees: 8 × 4, 8 × 8 m; rubber: 6 × 6, 12 × 6 m)