Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Modelling for Environment's Sake |
| Subtitle of host publication | Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010 |
| Pages | 1703-1709 |
| Number of pages | 7 |
| Publication status | Published - 2010 Dec 1 |
| Event | 5th Biennial Conference of the International Environmental Modelling and Software Society: Modelling for Environment's Sake, iEMSs 2010 - Ottawa, ON, Canada Duration: 2010 Jul 5 → 2010 Jul 8 |
Publication series
| Name | Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010 |
|---|---|
| Volume | 2 |
Other
| Other | 5th Biennial Conference of the International Environmental Modelling and Software Society: Modelling for Environment's Sake, iEMSs 2010 |
|---|---|
| Country | Canada |
| City | Ottawa, ON |
| Period | 10-07-05 → 10-07-08 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Software
- Environmental Engineering
- Modelling and Simulation
Cite this
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The impact of climate change on agriculture water resources for paddy rice over southern Taiwan. / Yu, Pao-Shan; Tseng, Hung Wei; Chen, Shien Tsung.
Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010. 2010. p. 1703-1709 (Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010; Vol. 2).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - The impact of climate change on agriculture water resources for paddy rice over southern Taiwan
AU - Yu, Pao-Shan
AU - Tseng, Hung Wei
AU - Chen, Shien Tsung
PY - 2010/12/1
Y1 - 2010/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84863350588&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863350588&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9788890357411
T3 - Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of the International Environmental Modelling and Software Society, iEMSs 2010
SP - 1703
EP - 1709
BT - Modelling for Environment's Sake
ER -