国立研究開発法人 国際農林水産業研究センター | JIRCAS

Allometric Equations for Tropical Seasonal Deciduous Forests in Cambodia: A Method of Estimating Belowground Tree Biomass with Reduced Sampling Loss of Roots

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

There is an urgent need to estimate the biomass of tropical seasonal forests in central Indochina, which have suffered from deforestation and degradation. However, allometric equations specific to such forests are limited. In this study, we destructively sampled 28 trees in a deciduous forest in Kratie Province, Cambodia, and developed new allometric equations for estimating the tree-level biomass of aboveground woody parts (trunk + branches), leaves, total aboveground parts (trunk + branches + leaves), and that of belowground parts (BGB). The sampling of belowground parts is usually very laborious and time-consuming, and entails inevitable root loss during excavation. Thus, it is difficult to accurately quantify tree-level BGB, especially for large trees. We used a new sampling method (called the mound method) to reduce the sampling loss of BGB. The percentage of BGB sampling loss (ratio of sampling loss estimated by the mound method to total BGB) averaged 28.9%. Our models estimated the stand-level biomass of a deciduous dipterocarp forest in Kratie to be 81.9 ± 45.1 Mg ha-1. The allometric equations and tree-level biomass data presented here will support activities related to REDD+.

刊行年月2016-10-01
作成者Yukako MONDAEriko ITOYoshiyuki KIYONOTamotsu SATOJumpei TORIYAMAHeng SOKHSophal CHANNBora TITHSamkol KETHOp PHALLAPHEARAOTHSoukanh BOUNTHABANDID
著者キーワード

deciduous dipterocarp forest

destructive sampling

forest biomass estimation

REDD+

root system

公開者Japan International Research Center for Agricultural Sciences
データ作成日2016-10-01
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
50
4
開始ページ369
終了ページ377
DOI10.6090/jarq.50.4
権利Japan International Research Center for Agricultural Sciences
関連するリソース : J-STAGE
言語eng