Stand structure and dynamics of Betula alnoides forests in the Caiyanghe Nature Reserve, Yunnan Province, China

Bibliographic Information

Other Title
  • 中国雲南省菜陽河自然保護区に分布するBetula alnoides林の構造と動態
  • チュウゴク ウンナンショウ サイ ヨウガワ シゼン ホゴク ニ ブンプ スル Betula alnoidesリン ノ コウゾウ ト ドウタイ

Search this article

Description

Stand structure and dynamics of Betula alnoides forests in the Caiyanghe Nature Reserve located in Yunnan Province, China, were studied. These were secondary forests distributed over the subtropical zone; they were established after human activities led to the destruction of evergreen broad-leaved forests. A total of 10 plots were established in stands that were aged 10-40 years and were at different stages of development i.e., from young, small-sized stands to fairly mature stands. The height and DBH (diameter at breast height) of stems≧3cm in DBH were recorded. The number of stems per hectare of B. alnoides showed a strong negative correlation with the maximum DBH of the species. Juveniles (<3cm in DBH) of B. alnoides were not found in any of the stands. DBH- and height-class distributions of the mature stands showed that regeneration of B. alnoides was discontinuous. More than 89.7% of B. alnoides stems found in the mature stands were canopy trees. On the basis of these results, it was concluded that B. alnoides is a typical shade-intolerant pioneer species that regenerates in sites with ample sunlight. In addition, the present study suggested that B. alnoides grows to a height of 25m and 40m within 20 years and 40 years, respectively.

Journal

  • Vegetation Science

    Vegetation Science 26 (2), 111-118, 2009

    The Society of Vegetation Science

Citations (1)*help

See more

References(19)*help

See more

Details 詳細情報について

Report a problem

Back to top