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//-->A project of Volunteersin Asia..ive TmuesPublished by:IntermediateTechnology9 King StreetLondon WC2E 8HNUnited KingdomPaper copiesare $ 4.25.Publications,forPublications,Ltd.Availablefrom:IntermediateTechnology9 King StreetLondon WC2E 8HNUnited KingdomReproducedTechnologyby permissionPublications,Ltd.of IntermediateLtd.Reproductionof this microfichedocument in anyform is subject to the same restrictionsas thoseof the originaldocument.Land CleaAlternative technremoving treesIntermediateTechnologyPublicationsLtd.If land has to be cleared of trees, how do you go about it? Whatecological and environmental factors have to be considered beforeundertaking any programme of land clearance, how do you plan yourprogramme, how do you decide between the various techniques andequipment, how many men will be needed, how much will you spend?This booklet has been compiled in response to such questions and isbased on the experience of experts in answering technical enquiries onland clearance from many countries. It provides a much-needed guideto choosing the most suitable method for the type of land to be cleared,type of tree growth and the resources available.The authors are members of the Agricu!ture Panel of the IntermediateTechnology Development Group.ISBN 0 90303 1 77 9Intermediate Technology Publications Ltd.PageACKNQ~DGEMENTSPREFACEINTRODUCTIONPLANNINGLAND CLEARANCEAPPROACHES LAND CLEARANCETOTECHNIQUESAND EQUIPMENTKILLING STANDINGTREES AND BUSHESFireBiologicalcontrolRing barkingChemical treatment of individualtrees &bushes with arboricidesMistblowersAerial sprayingUPROOTINGWHOLETREES AND BUSHESHand uprooting toolsHand winchDraught animalsTractor (direct pull)Tractor winchTractor-mounted tree extractorBulldozingTwo tracklayerswith chainCUTTING THROUGHTHE TRUNKAT GROUNDLEVELHand cutting toolsHand-held clearing sawChainsawTractor-mounted slasherTracklayer with roller-crusherTracklayer with shearing bladeii12610121415171820232526272931343638404344454749515355.. .Ill [ Pobierz całość w formacie PDF ]