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-Saint Francis had very unusual gardening advice. He thought there should be no ditches or fences around a garden, because this denotes private ownership. There should be nothing to mark the difference between the garden and surroundings. People, animals and plants were free to pass through the garden.\\
+[[saint_francis]] had very unusual gardening advice. He thought there should be no ditches or fences around a garden, because this denotes private ownership. There should be nothing to mark the difference between the garden and surroundings. People, animals and plants were free to pass through the garden.\\
--The Garden of Saint Francis; plants, landscape and economy in 13-th century Italy more: [[saint_francis]]
+-// The Garden of Saint Francis; plants, landscape and economy in 13-th century Italy more// \\
+--------------
+//The Mangrove Ring//. Robert Smithson's only realised work involving living plants, his interest in the elemant earth was his motivation of the use of living vegetation. Simthson was fascinated with the long term "land-making" effect of the mangrove, a tree with submerged roots which flourishes along the coast of Florida. The //Mangrove Ring// was made by planting seedlings in 1971 into sediment deposits in cracks in the rocky bottom of the lagoon in Florida. Magrove seedlings are suppossed to take root almost immediately. There is a story that Alexander de Great stopped his March through Asia to observe mangroves making land. mangroves called "island Makers" because they catch sediment in their spidery roots."
+from:"... The Earth, Subject to  Catalysmus, is a Cruel Master', in //Robert Smithson: The collected writings//, ed. Jack Flam, Berkeley andd Los Amgeles, 1996. p. 261
+---------------
+{{:coral3.tiff.scaled1000.jpg?200}}\\
+To build a Biorock reef, (developed by Thomas Goreau and Wolf Hilbertz in the 1970's)  a low voltage electrical current is passed through a conductive frame (metal meshes) that’s anchored to the seabed. Power can be sourced from chargers, windmills, solar panels or tidal current generators. The electrolytic reaction causes mineral crystals such as calcium carbonate and magnesium hydroxide found in seawater to grow on the structure. Within days, a whitish hue that is made up of precipitated minerals coat the structure’s surface – a sign that the wired frame is ready for action. Divers then begin transplanting coral fragments from other reefs and attach them to the frame. The coral pieces begin to bond to the accreted mineral substrate immediately and start to grow at a rate up to five times faster than usual. Soon the frame with dotted corals becomes a habitat for a reef ecosystem, attracting colonizing marine life such as fish, crabs, clams, octopus, lobster, and sea urchin.\\
+To build a Biorock reef, (developed by Thomas Goreau and Wolf Hilbertz in the 1970's)  a low voltage electrical current is passed through a conductive frame (metal meshes) that’s anchored to the seabed. Power can be sourced from chargers, windmills, solar panels or tidal current generators. The electrolytic reaction causes mineral crystals such as calcium carbonate and magnesium hydroxide found in seawater to grow on the structure. Within days, a whitish hue that is made up of precipitated minerals coat the structure’s surface – a sign that the wired frame is ready for action. Divers then begin transplanting coral fragments from other reefs and attach them to the frame. The coral pieces begin to bond to the accreted mineral substrate immediately and start to grow at a rate up to five times faster than usual. Soon the frame with dotted corals becomes a habitat for a reef ecosystem, attracting colonizing marine life such as fish, crabs, clams, octopus, lobster, and sea urchin.
+source: http://matthewoldfield.photoshelter.com/
 see also [[category gardens]]