Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s10584-016-1874-z |
Sediment related impacts of climate change and reservoir development in the Lower Mekong River Basin: a case study of the Nam Ou Basin, Lao PDR | |
Shrestha, Bikesh1; Maskey, Shreedhar2; Babel, Mukand S.3; van Griensven, Ann2,4; Uhlenbrook, Stefan5 | |
2018-07-01 | |
发表期刊 | CLIMATIC CHANGE
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ISSN | 0165-0009 |
EISSN | 1573-1480 |
出版年 | 2018 |
卷号 | 149期号:1页码:13-27 |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand; Netherlands; Thailand; Belgium; Italy |
英文摘要 | This study applies the soil and water assessment tool (SWAT), with climate (precipitation and temperature) outputs from four general circulation models (GCMs) and a regional circulation model (PRECIS), to evaluate (1) the impacts of climate change on reservoir sedimentation and (2) the impacts of climate change and reservoir development on sediment outflow in the Nam Ou River Basin located in northern Laos. Three reservoir-density scenarios, namely one reservoir (1R), three reservoirs in series (3R), and five reservoirs in series (5R), were evaluated for both no climate change and climate change conditions. The results show that under no climate change conditions, by 2070, around 17, 14, and 15% of the existing reservoir storage volume in the basin will be lost for 1R, 3R, and 5R scenarios, respectively. Notably, under climate change scenario with highest changes in erosion and sediment outflux from the basin, the additional reduction in reservoir storage capacity due to sedimentation is estimated to be nearly 26% for 1R, 21% for 3R, and 23% for 5R. Climate change alone is projected to change annual sediment outflux from the basin by -20 to 151%. In contrast, the development of reservoirs in the basin will reduce the annual sediment outflux from the basin varying from 44 to 80% for 1R, 44-81% for 3R, and 66-89% for 5R, considering climate change. In conclusion, climate change is expected to increase the sediment yield of the Nam Ou Basin, resulting in faster reduction of the reservoir's storage capacity. Sediment yield from the Nam Ou River Basin is likely to decrease significantly due to the trapping of sediment by planned reservoirs. The impact of reservoirs is much more significant than the impact of climate change on the sediment outflow of the basin. Hence, it is necessary to investigate appropriate reservoir sediment management strategies. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439470600002 |
WOS关键词 | WATER DISCHARGE ; HYDROLOGY ; FLOW ; UNCERTAINTY ; VALIDATION ; MODEL ; SWAT ; FLUX |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30139 |
专题 | 气候变化 |
作者单位 | 1.Univ Canterbury, Civil & Nat Resources Engn, Private Bag 4800, Christchurch, New Zealand; 2.UNESCO IHE Inst forWater Educ, Dept Water Sci & Engn, POB 3015, NL-261DA Delft, Netherlands; 3.Asian Inst Technol, Sch Engn & Technol, Water Engn & Management, POB 4, Klongluang 12120, Pathumthani, Thailand; 4.Vrije Univ Brussels, Dept Hydrol & Hydraul Engn, Pl Laan 2, B-1050 Brussels, Belgium; 5.UNESCO, UN World Water Assessment Programme WWAP, Villa La Colombella, I-06134 Perugia, Italy |
推荐引用方式 GB/T 7714 | Shrestha, Bikesh,Maskey, Shreedhar,Babel, Mukand S.,et al. Sediment related impacts of climate change and reservoir development in the Lower Mekong River Basin: a case study of the Nam Ou Basin, Lao PDR[J]. CLIMATIC CHANGE,2018,149(1):13-27. |
APA | Shrestha, Bikesh,Maskey, Shreedhar,Babel, Mukand S.,van Griensven, Ann,&Uhlenbrook, Stefan.(2018).Sediment related impacts of climate change and reservoir development in the Lower Mekong River Basin: a case study of the Nam Ou Basin, Lao PDR.CLIMATIC CHANGE,149(1),13-27. |
MLA | Shrestha, Bikesh,et al."Sediment related impacts of climate change and reservoir development in the Lower Mekong River Basin: a case study of the Nam Ou Basin, Lao PDR".CLIMATIC CHANGE 149.1(2018):13-27. |
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