Lecture 3

Tropical rain forest

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Unformatted text preview: ntationsareveryproductiveandrotationsshort: •  ­southeasternUnitedStates15 ­20m3/ha/annum, 15yearsforpulpwood,25 ­30yearsforsawlogs. •  ­NewZealandandChile25 ­30m3/ha/annum,20 ­ 25yearsforsawlogs.  Tropical Rain Forest       Theequatorialortropicalbroadleafevergreen rainforestismainlyfoundinS.America,central AfricaandtheequatorialwestcoastofAfrica, westcoastofIndia,Burma,Malaysia,Indo ­China Indonesia,Philippines,andPapuaNewGuinea. Tropical Rain Forest       • Thetropicalrainforestistheearth’smost complexbiomeintermsofstructureandspecies diversity.  • Meanmonthlytemperaturesareinexcessof18 degreesCelsiusandannualrainfallisgenerally morethan2500mm.Thegrowingseasonisyear round. Tropical Rain Forest Forestisallagedandthevegetationismulti ­ layered,generallywiththreelayersoftreesa shrublayerandagroundlayer.      MAYBE!!!NotAlwaysTrue. Tropical Rain Forest • Vegetationoccupiesallofthegrowingspace verticallyandhorizontally.Growthforms includeepiphytes;lianas;climbers;stranglers; parasitesandsaprophytes.  Tropical Rain Forest • Characteristicsofmanytropicaltreesinclude:  ­buttressedtrunks   ­largeleavesinthelowerstrataoftheforest; smallleavesintheupperstrata  ­leaveswithdriptip...
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This document was uploaded on 03/03/2014.

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