| Eco-environmental water requirement in the middle reaches oasis of Shulehe River Basin——Calculation method and parameter |
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| DOI：10.7606/j.issn.1000-7601.2016.05.34 |
| Key Words: the middle reaches of Shulehe river basin oasis eco-environmental water requirement calculation method parameter |
| Author Name | Affiliation | | SUN Dong-yuan | Gansu Research Institute for Water Conservancy, Lanzhou, Gansu 730000, China | | HU Xiang-quan | Gansu Research Institute for Water Conservancy, Lanzhou, Gansu 730000, China | | YANG Jun | The Soil and Water Conservation Bureau of Water Resources Department of Gansu Province, Lanzhou, Gansu 730000, China | | JIN Yan-zhao | Gansu Research Institute for Water Conservancy, Lanzhou, Gansu 730000, China | | ZHANG Yun-liang | Gansu Research Institute for Water Conservancy, Lanzhou, Gansu 730000, China |
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| Abstract: |
| Eco-environmental water requirement in arid inland river basin is one of key scientific problems in the reasonable allocation and management of water resources and the eco-environmental protection and construction in arid regions. According to different types of eco-environmental water requirement in the middle reaches oasis of Shulehe river basin, quantification model of eco-environmental water requirement for plain regions of the middle reaches oasis of Shulehe river basin was established and the calculation method of eco-environmental water requirement was put forward. The research result indicated that eco-environmental water requirement of natural vegetation, basic eco-environmental water requirement, transportation sand eco-environment water requirement, recharge of watercourse seepage water requirement, water surface evaporation eco-environmental water requirement, marsh eco-environmental water requirement were 1.90×108 m3, 1.00×108 m3, 1.11×108 m3, 0.83×108 m3, 0.68×108 m3 and 2.70×108 m3 in 2013, respectively. According to environmental status and the aim of ecological protection, optimal configuration and comprehensive management of water resources would need to be enhanced, the proportion of ecological water use and agricultural water use, and configuration quantity of water resources in different area and different usage department would be harmonized, comprehensive utilization efficiency of water resources would be heightened in the middle reaches oasis of Shulehe river basin. The recent and future ecological protection and restoration aim will be further established in the middle reaches oasis of Shulehe river basin. The significant zone of ecological governance will be ascertained, which the threshold and suitable quantity of ecological water requirement were calculated under different protection aim in the middle reaches oasis of Shule river basin. |
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