Main-stem seepage and base-flow recession time constants in the Niobrara National Scenic River Basin, Nebraska, 2016–18

The Kaidu-Konqi River Basin was chosen as the study site in this paper in order to investigate suitable scales of natural and artificial oases with a specified water resource and water quantity planned by the local government. Combined with remote-sensing images in 2013, water resources in 2013, 2020 and 2030, and weather and socioeconomic data, suitable scales of oases were analyzed. The results showed that: (1) The total available water quantities in the Yanqi Basin and the Konqi River Basin without river base flow, and the input of water into Bosten Lake and Tarim River, over high-, normal and low-flow periods, in 2020 and 2030, were 19.04×108m3, 10.52×108m3, 4.95×108m3, 9.95×108m3 and 9.95×108m3, as well as 21.77×108m3, 13.95×108m3, 10.11×108m3, 12.50×108m3, and 9.74×108m3. (2) The water demand of the natural oasis in the Yanqi Basin and the Konqi River Basin was 5.33×108m3, and 5.91×108m3, respectively. (3) The total water consumption of the artificial oasis in 2013, 2020, and 2030 were 18.16×108m3, 17.63×108m3 and 17.63×108m3 in the Yanqi Basin, respectively, and 17.11×108m3, 16.54×108m3 and 16.54×108m3 in the Konqi River Basin, respectively. (4) Under government planning, the optimal area in 2020 and 2030 should be 3198.98 km2 in the Yanqi Basin oases, and 3858.87 km2 and 3081.17 km2 in the Konqi River Basin oases, respectively, under the different inflow variations, and 3129.07 km2 in the Yanqi Basin oases, and 3834.58 km2 and 3061.78 km2 in the konqi River Basin oases, respectively, under the appropriate proportion. (5) The natural and artificial oases in these basins should be greatly decreased in the future due to limited water resources.

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Suitable oasis scales under a government plan in the Kaidu-Konqi River Basin of northwest arid region, China

10.7287/peerj.preprints.3430 ◽

2017 ◽

Author(s):

Aihong Fu ◽

Weihong Li ◽

Yaning Chen ◽

Yuting Liu

Keyword(s):

Water Resources ◽

River Basin ◽

Base Flow ◽

Low Flow ◽

Tarim River ◽

Bosten Lake ◽

Government Planning ◽

Yanqi Basin ◽

Optimal Area ◽

Socioeconomic Data

The Kaidu-Konqi River Basin was chosen as the study site in this paper in order to investigate suitable scales of natural and artificial oases with a specified water resource and water quantity planned by the local government. Combined with remote-sensing images in 2013, water resources in 2013, 2020 and 2030, and weather and socioeconomic data, suitable scales of oases were analyzed. The results showed that: (1) The total available water quantities in the Yanqi Basin and the Konqi River Basin without river base flow, and the input of water into Bosten Lake and Tarim River, over high-, normal and low-flow periods, in 2020 and 2030, were 19.04×108m3, 10.52×108m3, 4.95×108m3, 9.95×108m3 and 9.95×108m3, as well as 21.77×108m3, 13.95×108m3, 10.11×108m3, 12.50×108m3, and 9.74×108m3. (2) The water demand of the natural oasis in the Yanqi Basin and the Konqi River Basin was 5.33×108m3, and 5.91×108m3, respectively. (3) The total water consumption of the artificial oasis in 2013, 2020, and 2030 were 18.16×108m3, 17.63×108m3 and 17.63×108m3 in the Yanqi Basin, respectively, and 17.11×108m3, 16.54×108m3 and 16.54×108m3 in the Konqi River Basin, respectively. (4) Under government planning, the optimal area in 2020 and 2030 should be 3198.98 km2 in the Yanqi Basin oases, and 3858.87 km2 and 3081.17 km2 in the Konqi River Basin oases, respectively, under the different inflow variations, and 3129.07 km2 in the Yanqi Basin oases, and 3834.58 km2 and 3061.78 km2 in the konqi River Basin oases, respectively, under the appropriate proportion. (5) The natural and artificial oases in these basins should be greatly decreased in the future due to limited water resources.

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Suitable oasis scales under a government plan in the Kaidu-Konqi River Basin of northwest arid region, China

PeerJ ◽

10.7717/peerj.4943 ◽

2018 ◽

Vol 6 ◽

pp. e4943

Author(s):

Aihong Fu ◽

Weihong Li ◽

Yaning Chen ◽

Yuting Liu

Keyword(s):

Water Resources ◽

River Basin ◽

Base Flow ◽

Low Flow ◽

Tarim River ◽

Bosten Lake ◽

Government Planning ◽

Yanqi Basin ◽

Study Sites ◽

Optimal Area

The Yanqi Basin and the Konqi River Basin of the Kaidu-Konqi River Basin were chosen as the study sites in this paper in order to investigate suitable scales of natural and artificial oases with a specified water resource and water quantity planned by the local government. Combined with remote-sensing images from 2013, water resources in 2013, 2025 and 2035, and weather and socioeconomic data, suitable scales of oases were analyzed. The results showed that: (1) The total available water quantities in the Yanqi Basin and the Konqi River Basin without river base flow, and the input of water into Bosten Lake and Tarim River, over high-, normal and low-flow periods, in 2025 and 2035, were 19.04 × 108 m3, 10.52 × 108 m3, 4.95 × 108 m3, 9.95 × 108 m3 and 9.95 × 108 m3, as well as 21.77 × 108 m3, 13.95 × 108 m3, 10.11 × 108 m3, 12.50 × 108 m3, and 9.74 × 108 m3. (2) The water demand of the natural oasis in the Yanqi Basin and the Konqi River Basin was 2.59 × 108 m3, and 4.59 × 108 m3, respectively. (3) The total water consumption of the artificial oasis in 2013, 2025, and 2035 were 10.51 × 108 m3, 10.99 × 108 m3 and 10.74 × 108 m3 in the Yanqi Basin, respectively, and 18.59 × 108 m3, 14.07 × 108 m3 and 13.30 × 108m3 in the Kongqi River Basin, respectively. (4) Under government planning, the optimal area in 2025 and 2035 should be 5,100.06 km2 and 5,096.15 km2 in the Yanqi Basin oases, and 6,008.53 km2 and 4,691.36 km2 in the Konqi River Basin oases, respectively, under the different inflow variations, and 4,972.71 km2 and 4,969.22 km2 in the Yanqi Basin oases, and 5,975.17 km2 and 4,665.67 km2 in the Kongqi River Basin oases, respectively, under the appropriate proportion. (5) The artificial oases in these basins should be greatly decreased in the future due to limited water resources.

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Changes of Hydrological Components in Arctic Rivers Based on Multi-Source Data during 2003–2016

Water ◽

10.3390/w13243494 ◽

2021 ◽

Vol 13 (24) ◽

pp. 3494

Author(s):

Hao Wu ◽

Min Xu ◽

Mengyan Zhu

Keyword(s):

Global Warming ◽

River Basin ◽

Hydrological Cycle ◽

River Basins ◽

Surface Flow ◽

Base Flow ◽

The Arctic ◽

Current Case ◽

Annual Cycles ◽

Earth’S System

The hydrological cycle of the Arctic river basin holds an important position in the Earth’s system, which has been significantly disturbed by global warming. This study analyzed recent changes in the hydrological components of two representative Arctic river basins in Siberia and North America, the Lena River Basin (LRB) and Mackenzie River Basin (MRB), respectively. The trends were diagnosed in hydrological components through a comparative analysis and estimations based on remote sensing and observational datasets during 2003–2016. The results showed that the annual precipitation decreased at rates of 1.9 mm/10a and 18.8 mm/10a in the MRB and LRB, respectively. In contrast, evapotranspiration (ET) showed increasing trends, with rates of 9.5 mm/10a and 6.3 mm/10a in the MRB and LRB, respectively. Terrestrial water storage (TWS) was obviously decreased, with rates of 30.3 mm/a and 18.9 mm/a in the MRB and LRB, respectively, which indicated that more freshwater was released. Contradictive trends of the runoffs were found in the two basins, which were increased in the LRB and decreased in the MRB, due to the contributions of the surface water and base flow. In addition, the mean annual cycles of precipitation, ET, TWS, runoff depth, surface flow and base flow behaved differently in both magnitudes and distributions in the LRB and MRB, the trends of which will likely continue with the pronounced warming climate. The current case studies can help to understand the recent changes in the Arctic hydro-climatology and the consequence of global warming in Arctic river basins.

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