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Gary, you and I are in total agreement, so what follows is just my passionate ramblings. :)
In doing research for my book, I came across several references to the belief that native Americans started wildfires, because they believe it would improve the prairies and bring back the bison. Urban development and rural "ranchette" developments are probably the main reason wildfires are controlled today just as they are in Southern California. When you overcontrol wildfires you must have a plan to rid the ground of built up fuel which has not been removed by the wildfires. In fact, if the fuel is not removed then wildfires become even more dangerous.
Urban sprawl takes a different form in the Hill Country where you see ranch land being developed into 1-3 acre "ranchettes." These developments are not even close to a major city, so it is sprawl that jumps over open areas then begins to close the open spaces.
These "ranchette" developments advertise some "esthetic" features like hilltop views, river fronts or live water (not certain what dead water would be). In Kendall County you can find these developments in areas that used to be "borderline" ranches. What I mean by borderline ranch is that the land was not always ideal for ranching and thus the ranch went defunct or the family sold out.
Much of this land had turned into mesquite or cedar brakes. The good news about these developments is that they clear the land and open up the space that used to be covered with the small mesquite or cedar scrub trees (note: I am not in favor of removing all cedar, but mainly opening up the prairie areas). The bad news is when they turn most of that open space into manicured lawns and do not plant native plants. If those open spaces were returned to mixed native short grass/wildflower areas then we would all benefit. This field is an example:
http://community.wildflowerhaven.com/forums/984/ShowPost.aspx
The family mows over an acre of land after their field of bluebonnets goes to seed...that is all they do.
In my travels around the South Texas, I am seeing fewer places that are well managed rangeland which either means that the ranches are not doing well or they are overgrazing the land. In either case, land which was once healthy grassland prairies is being lost to dense mesquite or cedar brakes.
The concern I have is that each acre of open grassland we loose is an acre that could have captured much more water than a dense cedar brake. Each acre that is paved over generates more heat. Each acre we plant with water hungry plants we suck more water from the aquifers.
We are losing ground water and gaining areas that are heating up. The Austin - San Antonio corridor is already forming a weather-rigid inversion zone that wards off the heavier storms. You can see this in the rainfall patterns. Combine this with normal climate shifts such as global warming (we are globally warming even without mankind's assistance) and we might be facing an extended period wildflower decline.
I'm beginning to sound like Mr. Doom and that is not my purpose. I do hope we see that some of that decline is due to our impact on the land and that we do something to minimize that impact so that future generations will still get as excited as we do about our wonderful displays of Texas wildflowers.
There was a time in Texas only 150 years ago when no one needed a book, wildflower sightings or a wildflower route map to find magnificent displays of wildflowers. All they had to do was hitch up a wagon and take the weekend ride to town to shop and go to church. All along the way they were entertained with beautiful wildflowers as far as the eye could see. I know this because they left records of what they saw.
To the best of my ability and resources I pledge that my 32 acres of land in the Hill Country will be restored and preserved. :)
RichO Hunting Texas Wildflowers
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