ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
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40 <strong>Maejo</strong> Int. J. Sci. Technol. <strong>2012</strong>, 6(01), 28-46<br />
Table 4. Groups <strong>of</strong> sampling sites detected by cluster analysis <strong>of</strong> physico-chemical parameters <strong>of</strong><br />
water quality at 80% similarity<br />
Group Sampling site Description<br />
A SK5.1, SK5.2, SK5.3 Tributaries in north-eastern Thailand<br />
in cool dry season (second year)<br />
B KK5.1, KK5.2, KK5.3, KH5.1, KH5.2, KH5.3, KJ5.1, KJ5.2,<br />
KJ5.3<br />
Mekong River in north-eastern Thailand in cool<br />
dry season (second year)<br />
C HG5.1, HG5.2, HG5.3 Tributaries in north-eastern Thailand<br />
in cool dry season (second year)<br />
D HG4.1, HG4.2, HG4.3, LG4.1, LG4.2, LG4.3, SK4.1, SK4.2,<br />
SK4.3, KP5.1, KP5.2, KP5.3<br />
Tributaries in north-eastern Thailand<br />
in summer (second year) and cool dry season<br />
(second year)<br />
E GT3.1, GT3.2, GT3.3, KO2, KO3.1, KO3.2, KO3.3, HK3.1,<br />
HK3.2, HK3.3, HG3.1, HG3.2, HG3.3,KK2, KK3.2, PS2, LG2,<br />
Mekong River and its tributaries in summer (first<br />
year) and some <strong>of</strong> two cool dry seasons<br />
NP2, NP3.1, NP3.2,NP3.3, NP5.1, NP5.2, NP5.3, SK3.1, SK3.2,<br />
SK3.3, KB2, KB3.1, KB3.2, KB3.3, KB5.1, KB5.2, KB5.3,<br />
HW2, HW5.1, HW5.2, HW5.3, KH2, KH3.1, KH3.2, KH3.3,<br />
KP1, KP2, KP3.1, KP3.2, KP3.3, KP4.1, KP4.2, KP4.3, KJ2,<br />
KJ3.1, KJ3.2, KJ3.3<br />
F 1 GT6.1,GT6.2,GT6.3, HK6.1,HK6.2,HK6.3,HG2, HG6.1, HG6.2,<br />
HG6.3, KK3.1, KK3.3, K6.1, KK6.2, KK6.3, PS3.1, PS3.2,<br />
PS3.3,PS5.1,PS5.2,PS5.3, PS6.1, PS6.2, PS6.3,LG3.1, LG3.2,<br />
LG3.3,LG6.1, LG6.2, LG6.3<br />
Mekong River and its tributaries in two summers<br />
F 2 GT2, GT5.1, GT5.2, GT5.3, HK2, LG1, LG5.1,LG5.2, LG5.3,<br />
NP6.1, NP6.2, NP6.3, SK1, SK6.1, SK6.2, SK6.3, KB6.1,<br />
KB6.2, KB6.3, HW6.1, HW6.2, HW6.3, KH6.1, KH6.2, KH6.3,<br />
Mekong River and its tributaries in summer<br />
(second year) and some <strong>of</strong> cool dry season (second<br />
year)<br />
KP6.1, KP6.2, KP6.3, KJ6.1, KJ6.2,KJ6.3<br />
G SK2 Tributaries in north-eastern Thailand<br />
in cool dry season (first year)<br />
H KO1, KO5.1, KO5.2, KO5.3 Tributaries in northern Thailand<br />
in rainy season (first year) and cool dry season<br />
(second year)<br />
I 1 KO4.1, KO4.2, KO4.3, NP4.1, NP4.2, NP4.3,HW4.1, HW4.2,<br />
HW4.3, KH4.1, KH4.2, KH4.3, KJ4.1, KJ4.2, KJ4.3<br />
Mekong River and its tributaries in rainy season<br />
(second year)<br />
I 2 GT1, GT4.1, GT4.2, GT4.3, KO6.1, KO6.2, KO6.3, HK1,<br />
HK4.1, HK4.2, HK4.3, HK5.1, HK5.2, HK5.3, HG1, KK1,<br />
KK4.1, KK4.2, KK4.3, PS1, PS4.1, PS4.2, PS4.3, NP1,KB1,<br />
KB4.1, KB4.2, KB4.3, HW1, KH1, KJ1<br />
Mekong River and its tributaries in two rainy<br />
seasons and some <strong>of</strong> cool dry season (second year)<br />
and summer (second year)<br />
There were significant differences (P
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