国立研究開発法人 国際農林水産業研究センター | JIRCAS

Plant Species Diversity in Tropical Planted Forests and Implication for Restoration of Forest Ecosystems in Sakaerat, Northeastern Thailand

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Plantations of single tree species which are usually set up to reafforest cleared lands in the tropics, have often been criticized for being associated with a low level of diversity in the ecosystems. However, our study of understorey plant species in various plantations of single exotic or indigenous species has shown that more plant species grew within stands near a natural forest than within grasslands in Sakaerat, northeastern Thailand. These forests contribute to the acceleration of the secondary succession from grassland, which before reafforestation was achieved by recurrent fires. In the natural regeneration of understorey tree species in planted forests, large tree species in the natural forest seem to be the major common seed source among the stands studied. The small leaf biomass in these planted forests generated enough shade to prevent the invasion of 2 fire-adapted competitive grasses and to provide a suitable light environment for seedling establishment at an early stage of forest development. These factors facilitated the establishment of other species within the plantations of single tree species. Faster-growing exotic species accumulated larger amounts of understorey biomass than indigenous species. The most suitable species was Acacia mangium. The association of forests planted with single tree species with a high species richness in the ecosystems may enable to achieve a high biological diversity at the landscape level, which could bring various benefits to the forests of Sakaerat.

刊行年月2002-04-01
作成者KAMO KoichiVACHARANGKURA TospornTIYANON SirinVIRIYABUNCHA ChingchaiNIMPILA SuchatDOANGSRISEN Bunnasart
著者キーワード

catalytic effect

forest restoration

plantation

plant species richness

公開者Japan International Research Center for Agricultural Sciences
データ作成日2002-04-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
36
2
開始ページ111
終了ページ118
DOI10.6090/jarq.36.111
権利Japan International Research Center for Agricultural Sciences
言語eng