I think much of my answer has already been said, but...
I only tend to clearcut trees out of existence (initially) where I intend to dig my perimeter ditch/chasm (plus clear-gather any gatherable plant) and I use Burrows and mass-designate-treefelling (now with added prioritising!) in a logical way to get the ground prepared enough to then send in the channellers/rampers/derampers without causing further problems or wasting resources.
(The area(s) involved are fairly broad, I like ditches 10 or 20 tiles wide (for drawbridge-reach purposes, single or double retractable) and circumnavigating the map quite close to the edge, probably also straight across the two mid-way orthagonals in a big cross, save for the middle-middle patch which is retained as Trade Depot location waiting to be fed by bridges leading into it, viaducting down the middle of the cross... The (large) remaining 'quarters' within the ditch are walled in/rooved over as fortress sections, generally only the one(s) given agricultural purposes are fully cleared, but to facilitate the wall-building the clearcut footprint is a tile or three further than the ditch is planned for.)
Of course, I only have two, maybe even one, of my dwarves equipped as woodcutter and so dedicated to the task, with maybe a couple of herbalists doing their part and haulers from who is free/not-yet-employed from the remaining ones. (With priority to food-hauling, the logs can wait at the bottom of the ditch, as well as much of the stone also loosened along the way after going through the soil layers) and it is usually the case that handy migrants appear with enough of them not urgently needed for other tasks so that I can add them to the clean-up crew.
It is a big job, but my focus is upon the clearing (in order to allow the excavating) rather than log-hauling. As for stopping pesky new saplings springing up (in a painting-the-Forth-Bridge relentlessness) then does stockpile-setting still suppress new growth? If so, anywhere you aren't already putting a wood stockpile (as suggested above, surrounding trackstops or even the localised charcoaliser facilities) plonk down a Custom stockpile of Nothing, perhaps, to keep the deforestation from reforestating. (I don't find that a problem, as each miner gets working fairly quickly on the okayed-for-ditching ground, anyway.)
Though if you work in thin stripes (orthagonal, edge to edge, or diagonal, corner to corner), you can work out what works and what does not, probably, and modify your approach. If you have to start again, you should by then have gained experience (as will your woodcutters, charcoalers, etc) to do it quicker.