中国南部西双版納の熱帯における3森林タイプの多様性と相違点

概要

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Xishuangbanna is the southernmost, tropical part of Yunnan Province in southwestern China. It is characterized by a tropical monsoonal climate and vegetation ranging from tropical seasonal evergreen forests to tropical "laurel" forests above about1000-1200min the mountains. Three forest types were sampled and are described in terms of composition and structure : a tropical seasonal evergreen forest at 700m, a montane Castanopsis "laurel" forest at 1070m, and a forest on limestone. Although all in the same general area, the three forests were completely different, With only one tree species occurring in even two of the three forests. The genera in the three forests are characteristic of their respective bioclimatic zones in East Asia. The boundary between lowland tropical and montane Fagaceae forest, involving changes in temperature and water balance, also corresponds to that found in other mountains of Southeast Asia but seems unusually low and/or abrupt in this area, raising questions of zonation mechanisms.
横浜国立大学の論文