The following focuses on plant habitats, and in particular how they affect orchid culture in this country. One facet of natural habitats for most of the orchids grown in this country is significantly different from the conditions naturally experienced here, and this will be highlighted, together with other significant aspects.

CLIMATE SUMMARY

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We have now discussed the habitats. It is useful to summarise the main characteristics.

CLIMATIC FACTORS MAIN HABITATS

    LOWLANDS FOOTHILLS ARID INLAND TEMPERATE
HABITAT

1

2

3

4

TYPICAL TEMPERATURES (DEG. C.)  
NORMAL   23-35 10-25 15-35 5-18
 
EXTREME   17-40 5-32 0-43 0-25
 
DIRUNAL RANGE     15 20 35 15
 
MAX. TEMP. DIFFERENTIAL     23 27 43 25
HUMIDITY     65-90% 60-90% 20-60% 25-55%
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The main climatic factors of the habitats can be summarised as follows:-

CLIMATIC FACTORS MAIN HABITATS

HABITAT

LOWLANDS FOOTHILLS ARID INLAND HIGH ALTITUDE

1

2

3

4 TROPICAL

 
TEMPERATURE HOT COOL EXTREMES COOL
HUMIDITY HIGH MEDIUM HIGH NIGHT LOW
  LOW DAY  
RAINFALL MONSOON MONSOON RAIN SHADOW FOGS/MISTS
DRY WIN/SPR WINTER LONG PERIODS WINTER
WET SUM/AUT
MONSOONS
SUMMER
MONSOONS
MONSOONS SUMMER
LIGHT DULL SU SHADED SHADED MONSOON WI BRIGHT
  WI BRIGHT   SU SHADED
CONDITIONS CONSTANT SEASONAL EXTREME EVEN
AIR MOVEMENT AIRY   AIRY
 
ALTITUDE m ASL 0 - 850 850 - 1850 500 - 1000 1850 - 3500
  (to snowline)
CULTURAL GROUP WARM/INT INT/COOL WARM/INT COOL

SUBJECTS ARE LISTED IN THE LEFT INDEX WINDOW.

CLICK OF RELEVANT ITEM WHICH WILL BE SHOWN IN THIS MAIN WINDOW.

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