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Importance of sogshing in different regions of Bhutan<br />
Parameter Area<br />
(a/hh)<br />
Frequency<br />
(% hh)<br />
Area per<br />
crop land<br />
(ha/ha)<br />
Major tree species<br />
Wet subtropics 0.015 4.9 0.01 Schima wallichii<br />
Castanopsis indica<br />
Foot hills 0.067 19.2 0.07 Alnus nepalensis,<br />
Schima wallichii,<br />
Dry valleys<br />
High areas<br />
Quercus grifithii<br />
0.23 41.8 0.24 Chir pine, Quercus<br />
grifithii, Quercus<br />
lanata, Blue pine<br />
0.13 21.0 0.13 Blue pine, Quercus<br />
semecarpifolia