国立研究開発法人 国際農林水産業研究センター | JIRCAS

Modeling of Paddy Water Management with Large Reservoirs in Northeast Thailand and its Application to Climate Change Assessment

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

We developed a water circulation model that incorporates paddy water management, including reservoir operation and water allocation schemes, which is applicable to extensive and well-developed irrigation areas. First, reservoir operation and water allocation and management models were introduced into the water circulation model previously developed by the NIRE. Subsequently, we applied the developed model to assess the impact on irrigation reservoirs of climate change in the Mun River basin of northeast Thailand. As a result, taking into consideration the fluctuation in rainfall, the developed model reproduced the seasonal changes in storage water and water release at two large reservoirs, and monthly diverted water at a major diversion weir. Moreover, introducing the operation of reservoirs and diversion weirs improved the simulation accuracy of river discharges, particularly in dry seasons. According to climate change projections, the impacts of climate change on reservoir operations differed in each reservoir, although the reservoirs are in the same basin. This means that the impacts of climate change on the operation of water-use facilities should be individually assessed. Since the developed model requires only basic information and assumes simple operation rules, this model is useful for assessing impacts on the operation of numerous water-use facilities simultaneously at the macro level.

刊行年月2015-10-01
作成者KUDO RyojiMASUMOTO TakaoHORIKAWA Naoki
著者キーワード

anthropogenic flow regulation

atmospheric general circulation model

reservoir operation model

water allocation and management model

Monsoon Asia

公開者Japan International Research Center for Agricultural Sciences
データ作成日2015-10-01
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
49
4
開始ページ363
終了ページ376
DOI10.6090/jarq.49.363
権利Japan International Research Center for Agricultural Sciences
言語eng