Mon 25 Jul 2011
The threat from a runaway sand dune
Posted by DavidMitchell under Sonoma County, Wildlife
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This week I’m reprinting a magazine article by award-winning guitarist and composer Moro Buddy Bohn, who lives in the hamlet of Salmon Creek just north of the town of Bodega Bay.
For those of you who aren’t familiar with him, Moro in 1963 recorded his first album, Buddy Bohn, Folksinger. In 1965, he performed on the Andy Williams Show, and in 1967, he toured with the New Christy Minstrels as a guest guitarist. From 1968 to 1970, Moro played at a private club, the Factory, which Paul Newman owned in Los Angeles.
In 1970, he recorded his second album, Places, and in 1972, he recorded his third album, A Drop in the Ocean, performing with the London Philharmonic Orchestra. One of Moro’s compositions, Vermouth Rondo from A Drop in the Ocean, became an international hit, and Moro used the royalties to build his home and recording studio at Salmon Creek.
An online biography notes he performed for King Fredrick IX of Denmark, Maharaja and Maharani of Gwalior, Queens Sirikit and Elizabeth II, Duchess Francesca in Granada, shaikh of Hofuf, King Bhumibol of Siam, His Highness, Shaikh Shakhbut II bin Sultan Al Nahyan, ruler of Abu Dhabi, for some friendly Bedouin champagne smugglers (while crossing the Arabian Desert as guest of their camel caravan), for the Maharaja of Sandur, Baron and Baroness Peiris of Sri Lanka, the International Council of Europe, and more.
Approximately 40 years later, Moro is now trying to get California State Parks to deal with a man-made threat to his home.
Moro Buddy Bohn on the beach near his Salmon Creek home. (Photo by Mary Barnett)
By Moro Buddy Bohn, Reprinted from Ocean magazine http://www.oceanmagazine.org/
A sand dune tsunami is swallowing our little beach forest at Salmon Creek Beach near Bodega Bay.
In the early 1980s, heavy equipment uprooted vegetation in a section of coastal dunes. With ground cover gone in this area, sand began drifting through the gap and creating this dune, which is now crossing public land and will soon reach private land. Plants and a small forest are being buried by the advancing dune.
Unfortunately, the forest’s trees, shrubs, and grasses, which were planted here by California State Parks, are what park ecologists now call non-native exotics. Here’s what has happened.
By the 1950s, human encroachment had destroyed the native dune grasses that stabilized Salmon Creek Beach for centuries. Unstable sand was burying plants and threatening the remaining plants, homes, roads, and even Bodega Bay’s fishing industry. According to US Department of Agriculture figures, drifting sand had created 1,000 acres of desert around Bodega Bay. To save the harbor, repeated dredging was necessary.
Attempts to re-stabilize the dunes with native grasses were unsuccessful, so the USDA imported the deep-rooting European dune grass, which had proven durable, even with human abuse, along the Mediterranean coast.
Beginning in 1952 under the leadership of the Gold Ridge Soil Conservation District, individual farmers, Bodega Bay Grange, Boy Scout and Girl Scout troops, Sonoma County supervisors, the State Division of Soil Conservation, and the State Division of Beaches and Parks, European grasses were planted around Bodega Bay with resounding success.
With the sand stabilized, it was possible to beautify our vast beach by planting a forest on it. So State Parks rangers brought in and planted, right in the sand, the most beautiful and hardy specie of tree they could find.
An archway in the forest. (Photo by Moro Buddy Bohn)
State Parks chose the Monterey cypress, which had proven itself along the Central California Coast, and brought in a few Monterey pines as well. Among the trees, they planted lupine with its fragrant yellow blossoms, myoporum, flowering iceplant, and other shrubs including rosemary bushes.
The beachfront paradise attracted an array of wildlife from near and far. By the early 1980s the beach forest’s aromas from flower blossoms, rosemary, and pine cones mingled with the fresh, salty air. Birds sang to the accompaniment of surf. Passageways formed through the tree branches, leading to quiet sanctuaries where the quail, rabbits, deer, and birds stopped to rest and munch on seeds or delicate, succulent blossoms.
For part of the year, Salmon Creek’s lagoon is cut off from the ocean by a seasonal sandbar. (Photo by Moro Buddy Bohn)
But it was too good to last. During the early 1980s a U.S. Army Corps of Engineers vessel got beached here in a winter storm. Heavy equipment was brought in to float the ship, and a section of the European grass was uprooted.
The Army Corps offered to replace the European grass. But by then nativism had taken possession of ecological thought, and replanting of “alien invader” grass was unthinkable to State Parks.
The denuded sand became a moving dune, a mass of windblown sand 40 feet high, covering the forest and its bird and animal habitat, approaching our roads and homes. Strong onshore afternoon winds continually pile up more sand. Only a small section of the forest still survives.
State Parks has placed an ecologist in charge. He says the forest is “alien, non-native, exotic, invasive” tree, shrub, and grass species that have no place on the Sonoma Coast, even though the forest was created by State Parks.
State measurements confirm that as a result of human activity a buildup of sand is steadily smothering this forest. Beachgoers, heavy equipment, motorcycles, all-terrain vehicles, horses, and the dragging of driftwood logs to build fires have destroyed native plants, which had stabilized the dunes. Ironically, the state has refused to let humans, including the Army Corps of Engineers, undo the damage caused by humans. (Photo by Moro Buddy Bohn)
The state ecologist hopes the beach will run out of sand with which to supply the dune before it reaches our homes. He says he’ll bring in a bulldozer to save the homes if needed. At that point the forest will be gone, and along with it a large variety of nesting birds and other animals.
Today’s ecologists with whom I’ve spoken seem pleased with the dune’s progress because they’re anxious to be rid of any “invading” Monterey cypress trees.
For 28 years I’ve watched as the dune has gained size and groundspeed, measured by our ecologist each year since 2003. Its average annual movement these last eight years is more than 12 feet, about 3 inches per week.
The trees slowly suffocate, at 3 inches per week. Macabre. Trees sense their environment and communicate with each other in various ways. One is with pheromones. These trees are being buried alive. Meanwhile, swallowed, they stabilize the dune, strengthening it.
The dune’s cutting edge will begin swallowing the last vestige of forest within two years and arrive at private property in four to five years.
The runaway dune near the center of this photo is advancing on homes in the hamlet of Salmon Creek at the rate of about three inches per week. A parking lot for beachgoers is to its right. The creek itself is at the far right. Moro would like to see the state use a bulldozer to flatten part of the dune so that any of a number of groundcover plants can be mechanically planted to stabilize the sand and stop the dune’s advance. There are several native plants that could do the job, if the state were just willing to do its job. (Google satellite photo)