The impact of climate change on agriculture water resources for paddy rice over southern Taiwan

Pao Shan Yu, Hung Wei Tseng, Shien Tsung Chen

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This work aims to investigate the impacts of hydrologic drought on agricultural water resources under climate change scenarios. The study area is Tseng-Wen Reservoir basin in southern Taiwan, which receives temporally uneven precipitation. It is thus a basin prone to suffer from drought during dry season. General circulation models (GCMs) are the main tool to tackle climate change issues through the help of prescribed scenarios. This work used several approaches, including spatial downscaling, temporal downscaling and hydrologic model, to solve the coarse-resolution problem of GCMs and then to analyze the effect of climate change in the study area. The following are important findings: (1) According to future climate projections, droughts may become more frequent (hereafter referred to as scenario droughts), but their duration and magnitude may become more diverse than those of the baseline droughts. (2) The times of start and end of scenario droughts may occur earlier than those of baseline droughts. (3) Scenario low flow during the dry period tends to decrease in January and February, but to increase in March and April. (4) Moderate adjustment of irrigation period to adapt to climate change is suggested.

原文English
主出版物標題Modelling for Environment's Sake
主出版物子標題Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010
頁面1703-1709
頁數7
出版狀態Published - 2010
事件5th Biennial Conference of the International Environmental Modelling and Software Society: Modelling for Environment's Sake, iEMSs 2010 - Ottawa, ON, Canada
持續時間: 2010 7月 52010 7月 8

出版系列

名字Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010
2

Other

Other5th Biennial Conference of the International Environmental Modelling and Software Society: Modelling for Environment's Sake, iEMSs 2010
國家/地區Canada
城市Ottawa, ON
期間10-07-0510-07-08

All Science Journal Classification (ASJC) codes

  • 軟體
  • 環境工程
  • 建模與模擬

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