"Paul Mcauley - Red Dust" - читать интересную книгу автора (Mcauley Paul J)crusted with leached iron salts. Every footstep threw up a
rotten salty stench, and the three cadres walked with their kerchiefs drawn over nose and mouth. Only the bact seemed unaffected; its black lips drawn back in a perpetual sneer as it padded behind Lee. But while the others grumbled about the stink of the sours, Lee saw it for what it was: a co-operative ecological 8 PAUL J. MCAULE┬е structure which had once forced the Martian desert slowly to yield to wetland ecology. The roots of black willows reached deep down into the frozen regolith; and special strands in their bark cambium conducted heat to melt and mine the permafrost. Soldier grasses wove a net of stolons through the dusty soil, holding it together. Fungi broke the chemical bonds of the thin surface crust of iron oxides, bindg the iron to more stable forms, releasing the oxygen. Rainbow slicks on the black mud in the clogged ditches were a sign that bacteria were multiplying in the anaerobic muck, slowly turning it into soil that would grow crops. A slow tide of life feeding on the Martian regolith, feeding on itself, processing red dust into oxygen and water and life-filled which was locking three grams of water in the polar icecaps for every two produced. The battle fading. Crumbs of water spilled into thirsty sand. The front line where once unre-claimed Martian desert had grudgingly given way to pioneer vegetation was now a festering wound circling the danwei's fifty-kilometre perimeter. As the three men moved farther from the danwei, the black willows grew smaller. Thickly clumped stands thinned out. Tussocks of soldier grass had tails of red sand, each miniature sand dune pointing in the same direction, away from the dan-wei and the winds that blew off the Plain of Gold. The men's boots kept breaking through a duricrust of hydrated minerals, making a soft creaking sound with each step. But there was life there, too. Succulent green spears were pushing through the crusted soil, tipped with transparent cells which focused light down to deeply buried corms. The bact flared its nostrils hungrily, and Lee had to keep jerking at its bridle to remind it that it wasn't there to look for lunch. A few bees were out, commuting between widespread patches of yellow-flowered rock vetch. A patch of frosty soil had gathered in the lee of two weather-split boulders, and a lupin had rooted there, its spread of half a dozen leaves no |
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