(A) One management cell, cut in front of the viewer. The standing wall of Rubus niveus — thorny, lignified, and no use as forage — is felled tile by tile as the crew's blade reaches it; the crowns are left, and the same wall survives uncut outside the cell, on the unmanaged mid-slope. Nothing regrows behind the cutter: the flush of soft, unarmed shoots rises from the crowns only after the block is clear, and it rises from zero. That flush is what the herd takes; each thicket is defoliated as the animals reach it, so the feeding front and the animals are one event. The virtual boundaries exist only while the animals are in the cell: the herd walks into open ground, the first boundary is set behind them, the second at the far end once they have been turned, and the cell is worked back and forth in three passes — about half the flush on the first, most of the rest on the second, the remainder on the third. When there is nothing left to take the boundaries are lifted and the herd walks out through the open end.
WHAT IS DIFFERENT HERE. The cut cane is carried off the plot instead of being left to decompose, so any fruit on it leaves with it; the resprout flush is taken by targeted grazing rather than by three foliar herbicide passes; and the removed cane becomes mushroom substrate, then feed. It does not remove the seed already in the soil, and it does not replace the initial cut.
Not operating · authorization in process(B) The same loop as two curves read directly off (A). Red is the share of the mature wall still standing: high, then to zero as it is cut. Yellow is the height of the soft regrowth: from that zero, rising through the rest period, then taken down as the herd passes. The dashed line is the modelled lignification of that regrowth if nobody came — the window opens on biomass at d≈20 and would close on hardening at d≈55; the design enters at d45. Enter late and the herd is being asked to eat the wall again.