I was just reading about the dehesa method of lang management and realized that this is exactly what I have at Altamira. "Dehesa is a multifunctional agro-sylvo-pastoral system (a type ofagroforestry) and cultural landscape of southern and central Spain and southern Portugal, where it is known as montado" https://en.wikipedia.org/wiki/Dehesa_(pastoral_management) I lived on a very small portion of Altamir for a few years. When the house burned, I decided not to rebuild but rather to leave the entire tract of land wild, for hunting and observation and also for the park-like beauty of it. There is nothing I can think of that would improve it, other than clearing out some of the yaupon holly to encourage the growth of native grasses between the trees. But one can't clear too much of the yaupon, because the soil is, literally, beach sand. The ridge was a barrier island when the Gulf of Mexico was larger than it is now. When you clear it, the soil loses its ability to support life. About 20 years ago an oil company cleared a 40 foot wide swath all the way through my land by mistake (they were on the wrong land). It was interesting to observe the order in which the plants grew back, like a wound healing from the edges. The articles I read about Dehesa land management say that Dehesa is the most productive method of food production in Spain and Portugal, if you account for all inputs and outputs. The land at Altamira, known by locals as the Iron Mountains or Sandhills, was considered trash land and, far as I can tell, was never used by humans except for hunting. Up until the mid-1900's when local people started fencing all the land, ranchers kept their cattle away from the Sandhills, because once the cattle got into the yaupon thickets it was impossible to find them again. So it has remained in its wild condition all these years. The sandstone ridge that rises a couple hundred feet above the surrounding blackland prairie and has completely different flora. The climax trees are post oak, blackjact oak, and hickory. The oaks produce enough acorns to keep 100's of pigs fat and happy. Many of the understory plants also produce fruit edible by pigs: American beauty berry, farkleberry (tree huckleberry), dwarf pawpaw (Asimina parviflora, which ripens earlier than the more common pawpaw (A triloba)), dew berry, several kinds of edible fungus. I'm not sure whether pigs also eat the berries of yaupon holly. Birds do, for sure. There are several native grasses, including little bluestem and love grass, that provide grazing for a few cattle (I rotate a few cattle through the land in order to get the agricultural appraisal by the county, which results in far lower taxes on the land). Loads of forage for deer and goats -- if I wanted to manage the land optimally I'd rotate some goats through from time to time, to graze back the thickets of yaupon holly. But I find goats to be a royal pain, so I don't have any at the moment. The pigs, 100's of them, got there on their own after they escaped from captivity. Within a few generations, they began to look like wild pigs, with pointed snouts. Not surpirsingly, the meat is very similar to domestic pork, only leaner. Some of the neighbors (I'm sad to say, many, maybe most of the neighbors) have cleared the natural growth off their lands and planted high-protein grasses such as coastal Bermuda grass. I have a volunteer stand of Bermuda grass on my land that grows well in the creek bottom, but in order to keep gass growing in a cleared pasture in the Sandhills, one must dump hundreds of pounds of fertilizer onto the land, every year. It's hard to believe people could be so stupid -- to spend huge amounts of effort and money clearing off the amazingly efficient native forest, and huge amounts of money on fertilizer, for a significantly inferior yield than they would have had if they had left things alone. I have at least 100x the amount of human food running around on my land than they have on theirs. So far, there's still enough native forest to provide a decent gene pool for the plants and to support the wild animals.