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Appendix I: The Ecology of Dune
Thesehadtobefiguredintotheformulae.Evenshai-huludhadaplaceinthecharts.Hemustneverbedestroyed,elsespicewealthwouldend.Buthisinnerdigestive“factory,”withitsenormousconcentrationsofaldehydesandacids,wasagiantsourceofoxygen.Amediumworm(about200meterslong)dischargedintotheatmosphereasmuchoxygenastensquarekilometersofgreen-growingphotosynthesissurface.
HehadtheGuildtoconsider.ThespicebribetotheGuildforpreventingweathersatellitesandotherwatchersintheskiesofArrakisalreadyhadreachedmajorproportions.
NorcouldtheFremenbeignored.EspeciallytheFremen,withtheirwindtrapsandirregularlandholdingsorganizedaroundwatersupply;theFremenwiththeirnewecologicalliteracyandtheirdreamofcyclingvastareasofArrakisthroughaprairiephaseintoforestcover.
Fromthechartsemergedafigure.Kynesreportedit.Threepercent.IftheycouldgetthreepercentofthegreenplantelementonArrakisinvolvedinformingcarboncompounds,they’dhavetheirself-sustainingcycle.
“Buthowlong?”theFremendemanded.
“Oh,that:aboutthreehundredandfiftyyears.”
Soitwastrueasthisummahadsaidinthebeginning:thethingwouldnotcomeinthelifetimeofanymannowliving,norinthelifetimeoftheirgrandchildreneighttimesremoved,butitwouldcome.
Theworkcontinued:building,planting,digging,trainingthechildren.
ThenKynes-the-Ummawaskilledinthecave-inatPlasterBasin.
Bythistimehisson,Liet-Kynes,wasnineteen,afullFremenandsandriderwhohadkilledmorethanahundredHarkonnens
