Abstract
After analyzing the regulation of overflow ecological water consumption in the Canmrik ecological area of mainstream zone of the Tarim River, in this paper a model of ecological bifurcation is developed, the dynamic overflow process of ecological bifurcation is simulated, and the quantitative relationships between the volume of ecological water consumption and the ecological conservation extent and overflow time are analyzed using GIS, advance of freshet and RS means. The results reveal that the effects of discharge and time of ecological bifurcation on the efficiency of ecological water consumption are significant, there is a geometrical exponential relationship between the efficiency of ecological bifurcation and the water supply with different discharges and different times under the same ecological water consumption, hypsography plays an important role in ecological water consumption, the regulation of ecological water consumption cannot be equated with the ordinary farming irrigation system, a serious water waste will result and the prospective ecological benefits will not be able to be achieved if an ordinary ecological bifurcation is implemented. The efficiency of ecological water consumption can be increased by 30% by selecting the bifurcation schemes in an optimized way, which is of the utmost importance for arid areas with shortage of water resources.
Similar content being viewed by others
References
Fan Z L, Ma Y J. Some issues about the exploitation and the rational utilization of water resources in the arid areas. Arid Land Geogr (in Chinese), 2000, 17(3): 6–11
Jia B Q, Xu Y Q. The conception of the eco-environmental water demand and its classification in arid land — Taking Xinjiang as an example. Arid Land Geogr (in Chinese), 1998, 21(2): 8–12
Tanga Z, Engela B A, Pijanowskib B C, et al. Forecasting land use change and its environmental impact at a watershed scale. J Environ Manag, 2005, 216: 1–11
Wang G X, Zhang Y, Liu G M, et al. Water demand evaluation of riverside ecosystem in arid inland river basin: The case of Heihe River Basin. Acta Ecol Sin (in Chinese), 2005, 25(10): 2467–2476
Chen X, Xia J, Qian J, et al. Study on distributed hydrological modle in Sangong River Basin. Arid Land Geogr (in Chinese), 2003, 26(4): 305–308
Fang C L, Bao C. The coupling modle of water-ecology-economy coordinanted development and its application in Heihe River Basin. Arid Land Geogr (in Chinese), 2004, 59(5): 781–790
Thompson J R, Refstrup H, Gavin H, et al. Application of the coupled MIKE SHE/MIKE 11 modelling system to a lowland wet grassland in southeast England. J Hydrol, 2004, 293: 151–179
Jain M K, Singh V P. DEM-based modelling of surface runoff using diffusion wave equation. J Hydrol, 2005, 302: 107–126
Xia J, Wan G S, Lü A F, et al. A research on distributed time variant gain modeling. Acta Geogr Sin (in Chinese), 2003, 58(5): 789–796
Chen Q W, Ouyang Z Y. Integrated ecohydraulics model and the application. J Water Conservancy (in Chinese), 2005, 36(11): 1273–1279
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Natural Science Foundation of China (Grant No. 40571030) and the World Bank and China’s National Key Project (Grant Nos. TTTQ-216 and TTTQ-218)
Rights and permissions
About this article
Cite this article
Chen, X., Huang, Y., Qian, J. et al. Simulation analysis on the regulation of overflow ecological water consumption in arid areas. SCI CHINA SER D 50 (Suppl 1), 1–8 (2007). https://doi.org/10.1007/s11430-007-5009-2
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11430-007-5009-2