BIO120H1 Lecture Notes - Lecture 9: Climax Species, Tropical Rainforest, Secondary Succession
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BIO120H1 Full Course Notes
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Development and incorporation of organic matter into inorganic matter; allowing soil development for more of a plant community. By definition, occurs in places there has been a plant community in some kind, but has been destroyed or extremely modified. Logging, clearing for agriculture soil is tilled, but abandoned by farmer. When you abandon a field that has been plowed, you get annual weeds that are dormant because their seeds tend to have a light requirement; if they are under a tree canopy, they remain in dormancy. Next year, you see more perennial weeds, with vegetation about a meter high, holding the vegetation for more years. Stage 3, you get shrubs and trees that over top the perennials. Tage 4, (cid:455)ou get (cid:272)olo(cid:374)izatio(cid:374) fro(cid:373) (cid:373)ore spe(cid:272)ies, for e(cid:454)a(cid:373)ple, aspe(cid:374) (cid:272)lo(cid:374)es o(cid:374) joker"s hill. Stage 5, tend to find that tree colonization has continued, much denser woody trees, shade (cid:271)e(cid:272)o(cid:373)es (cid:373)ai(cid:374) fa(cid:272)tor; if there"s foliage (cid:271)elo(cid:449), i(cid:374)di(cid:272)ates that enough.
