Is that the best way to get equipment on board an LPD?
I guess no. More precisely, the best/easiest way to get vehicles onto the heli-deck would be from the dock/wharf using the portside door ram, through the ship's inner vehicle deck onto the heli-deck. Since 071 seems to lack such a vehicle access route, they will have to crane the vehicles onto or off the heli-deck for parking, a time-costing process.
Doesn't 071 have a roro ramp? Perhaps the dock is too high or low
can they use the well deck?
Probably not, the rear ramp door is either too low or too high in which case it's probably too steep for anything to get in and out of the well deck which is deigned to flood to float assets and considering there's no roll on roll of feature of this ship loading onto the helo deck is really the only opition
Plus when that rear door is open it sits really in the water the accommodating port would have to have a very low pier which is unlikely
They are using cranes to lift off vehicles parked on the heli-deck onto the dock.
The roro ramp does not help since it seems 071's lower inner vehicle deck and well-deck have no vehicle access route to the upper hanger/heli-deck where the trucks, bulldozers etc are to be parked.
Ah right. I forget sometimes that the PLA do often park their vehicles on the helideck. Although in this case I wonder why they did so considering all the internal hull space. Perhaps that was used for other purposes for this voyage.