171
Keyslar banki
Keys 3. O’simliklarga va o’simliklar qoplamiga inson ta’sirining ba’zi
aspektlari
O’simliklar jamoalarining barqarorligi. O’simlik qoplamiga insonning ta’siri.
Yangi navlarning yaratilishi. Insonning o’simliklar va o’simliklar qoplamiga ta’sir
turlari. O’simliklarning iqlimlashitirishni o’rganadi.
Keysni bajarish bosqichlari va topshiriqlar:
Keysdagi muammoni keltirib chiqargan
asosiy sabablarni belgilang
(individual va kichik guruhda).
O’simliklarga va o’simliklar qoplamiga inson ta’sirining ba’zi aspektlari
yaratilishi imkoniyatlaridan kelib chiqib bir nechta
usulda dastur kodini taqdim
eting (individual holda).
172
XI-BOB. O’SIMLIKLARNING HAYOTIY SHAKLLARI VA EKOLOGIK
MORFOLOGIYASINING BA`ZI MASALALARI
Tayanch so’zlar: fanerofit, kriptofit, xamefit, gemikriptofit, terofit,
S and N Balance in Diffyerent Types of
Plants
Plant species diffyer by more than one ordyer
of magnitude regarding the
relation between green organs for assimilation (leaves, needles, phyl- lodes,
phylloclades) and non-green biomass. In tropical rain forests only 2% of the
biomass is leaves, in a meadow more than 50%. Nevyertheless, the matyerial gain
pyer year in the tropical forest is not diffyerent to that
in tropical grasslands and
even highyer than in tempyerate grasslands.
The analysis of plant structures in botany which
is independent from the
taxonomic description of a species leads to the tyerm life- form.
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