reach number road in buffer road in basin current forest in buffer current forest in basin current urban in buffer current urban in basin current rural in buffer current rural in basin current ag in buffer current ag in basin current water in buffer current water in basin future forest in buffer future forest in basin future urban in buffer future urban in basin future rural in buffer future rural in basin future ag in buffer future ag in basin future water in buffer future water in basin Qc<100mm buffer Qc<100mm basin W<1 buffer W<1 basin 1