Vegetation of Southeast Asia Studies of Forest Types 1963-1965

FORESTS OF SOUTHEAST ASIA
This Part contains II maps and 125 illustrations. Most of
the photographs were taken by the author, while conducting field
investigations in Thailiuid during 1963-6^ and 196^-65.
A series of maps shows the principal physiographic regions,
mountain ranges and river system of Thailand; and the mean nonthly
rainfall and temperature range, according to region.
Several maps indicate the distribution of the forested areas
of Thailand; the principal. Evergreen and Deciduous forest types
of that Kingdom; and a composite map of the major forest types of
Vietnam, J,aos and Cambodia.
A number of photographs illustrate the characteristics and
.structure of various vegetation types of Thailand, as being representative
of similar formations in other regions 01" Southeast
Asia.
Several forest types are illustrated by ground and aerial
photographs, to compare their aspects as seen horizontally and
vertically.
A limited number of forest areas or types of South Vietnam,
Laos and Cambodia are reproduced.
Sorae of the most common and widespread weeds of Southeast Asia
are illustrated. These are considered hazardous, as potential
sites for ambush, because of their prevalence along paths, roadways,
railroads, canals, on bunds of paddies, In forest clearings
and second growth in general.
Photographs taten at the test-site near Pranburi, upper Peninsula,
show the effect of chemical defoliants on vegetation.
A few photographs illustrate the predominant forest types and
general conditions in northeastern Thailand, long considered the
most backward and vulnerable part of that country.
Two photographs illust -ate phases of studies being conducted
by a joint expedition of Kyoto University, Japan } and Chulalonkorn
University, Thailand, to investigate soil producitivity in Thailand.
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