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http://dx.doi.org/10.12989/aer.2018.7.3.161

Assessment of environmental flows using hydrological methods for Krishna River, India  

Uday Kumar, A. (Department of Civil Engineering, National Institute of Technology)
Jayakumar, K.V. (Department of Civil Engineering, National Institute of Technology)
Publication Information
Advances in environmental research / v.7, no.3, 2018 , pp. 161-175 More about this Journal
Abstract
Krishna River is significantly affected due to Srisailam dam from past 30 years. The impact of this hydraulic structure drastically reduced the minimum flow regime on the downstream, which made the river nearing to decaying stage. In the present paper, Environmental Flow called minimum flow values released for the dam are estimated with the help of three hydrological methods viz., Range of variability Approach (RVA), Desktop Reserve Model (DRM), and Global Environmental Flow Calculator (GEFC). DRM method suggested considering the intermediate values obtained from among the three methods to preserve the ecosystem on the downstream of the river, which amounts to an average annual allocation of 9378 Million Cubic Meter (MCM) which is equal to 23.11% of mean annual flow (MAF). In this regard GEFC and RVA methods accounted for 22% and 31.04% of MAF respectively. The results indicate that current reservoir operation policy is causing a severe hydrological alteration in the high flow season especially in the month of July. The study concluded that in the case of non-availability of environmental information, hydrological indicators can be used to provide the basic assessment of environmental flow requirements. It is inferred from the results obtained from the study, that the new reservoir operations can fulfil human water needs without disturbing Environmental Flow Requirements.
Keywords
environmental flow; hydrological alteration; reservoir operations; ecosystem;
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1 Abdi, R. and Mehdi, Y. (2015), "Evaluation of environmental flow requirements using eco-hydrologichydraulic methods in perennial rivers", Water Sci. Technol., 72(3), 354-363.   DOI
2 Ares, E. (2018), "Effects of multiple dam projects on river ecology and climate change: Coruh River Basin, Turkey", Adv. Environ. Res., 7(2), 121-138.   DOI
3 Babel, M.S., Dinh, C.N., Mullick, M.R. and Nanduri, U.V. (2012), "Operation of a hydropower system considering environmental flow requirements: A case study in La Nga river basin, Vietnam", J. Hydroenviron. Res., 6(1), 63-73.
4 Boodoo, K.S., McClain, M.E., Upegui, J.J.V. and Lopez, O.L. (2014), "Impacts of implementation of Colombian environmental flow methodologies on the flow regime and hydropower production of the Chinchina River, Colombia", Ecohydrol. Hydrobiol., 14(4), 267-284.   DOI
5 Bunn, S.E. and Arthington, A.H. (2002), "Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity", Environ. Manage., 30(4), 492-507.
6 Declaration, B. (2007), "Environmental flows are essential for freshwater ecosystem health and human wellbeing", Proceedings of the 10th International River Symposium and International Environmental Flows Conference, Brisbane, Australia, September.
7 Gippel, C.J., Cosier, M., Markar, S. and Liu, C. (2009), "Balancing environmental flows needs and water supply reliability", Water Resour. Develop., 25(2), 331-353.   DOI
8 Hughes, D.A. and Hannart, P. (2003), "A desktop model used to provide an initial estimate of the ecological instream flow requirements of rivers in South Africa", J. Hydrol., 270(3), 167-181.   DOI
9 Iyer, R.R. (2005), "The notion of environmental flows: A caution", Proceedings of the NIE/IWMI Workshop on Environmental Flows, New Delhi, India, March.
10 Jain, S.K. and Kumar, P. (2014), "Environmental flows in India: Towards sustainable water management", Hydrolog. Sci. J., 59(3-4), 751-769.   DOI
11 Joshi, K.D., Jha, D.N., Alam, A., Srivastava, S.K., Kumar, V. and Sharma, A.P. (2014), "Environmental flow requirements of river Sone: Impacts of low discharge on fisheries", Current Sci., 107(3), 478-512.
12 King, J. and Louw, D. (1998), "Instream flow assessments for regulated rivers in South Africa using the Building Block Methodology", Aquat. Ecosyst. Health Manage., 1(2), 109-124.   DOI
13 Liu, Y., Cao, S., Yang, Y. and Zhang, X. (2018), "Assessment of hydrologic regime considering the distribution of hydrologic parameters", Water Sci. Technol. Water Supply, 18(3), 875-885.   DOI
14 Magdaleno, F.(2018), "Flows, ecology and people: Is there room for cultural demands in the assessment of environmental flows?", Water Sci. Technol., 77(7), 1777-1781.   DOI
15 Mazvimavi, D. Madamombe, E. and Makurira, H. (2007), "Assessment of environmental flow requirements for river basin planning in Zimbabwe", Phys. Chem. Earth, 32(15), 995-1006.   DOI
16 Nilsson, C., Reidy, C.A., Dynesius, M. and Revenga, C. (2005), "Fragmentation and flow regulation of the world's large river systems", Science, 308(5720), 405-408.   DOI
17 Pal, S. and Talukdar, S. (2018), "Assessing the role of hydrological modifications on land use/land cover dynamics in Punarbhaba river basin of Indo-Bangladesh", Environ. Develop. Sustain., 1(1), 1-20.   DOI
18 Peng, L. and Sun, L. (2016), "Minimum instream flow requirement for the water-reduction section of diversion-type hydropower station: A case study of the Zagunao River, China", Environ. Earth Sci., 75(17), 1210.
19 Peres, D.J. and Cancelliere, A. (2016), "Environmental flow assessment based on different metrics of hydrological alteration", Water Resour. Manage., 30(15), 5799-5817.   DOI
20 Pfeiffer, M. and Ionita, M. (2017), "Assessment of hydrologic alterations in Elbe and Rhine Rivers Germany", Water, 9(9), 684.   DOI
21 Poff, N.L., Allan, J.D., Palmer, M.A., Hart, D.D., Richter, B.D., Arthington, A.H., Rogers, K.H., Meyer, J.L. and Stanford, J.A. (2003), "River flows and water wars: Emerging science for environmental decision making", Front. Ecol. Environ., 1(6), 298-306.   DOI
22 Richter, B.D., Baumgartner, J.V., Powell, J. and Braun, D.P. (1996), "A method for assessing hydrologic alteration within ecosystems", Conserv. Biol., 10(1), 1163-1174.   DOI
23 Smakhtin, V.U. and Anputhas, M. (2006), "An assessment of environmental flow requirements of Indian river basins", IWMI Research Report 107, International Water Management Institute, Colombo, Sri Lanka.
24 Smakhtin, V.U., Shilpakar, R.L. and Hughes, D.A. (2006), "Hydrology-based assessment of environmental flows: An example from Nepal", Hydrolog. Sci. J., 51(2), 207-222.   DOI
25 Talukdar, S. and Pal, S. (2017), "Impact of dam on inundation regime of flood plain wetland of punarbhaba river basin of barind tract of Indo-Bangladesh", Int. Soil Water Conserv. Res., 5(2), 109-121.   DOI
26 Tharme, R.E. (2003), "A global perspective on environmental flow assessment: Emerging trends in the development and application of environmental flow methodologies for rivers", River Res. Appl., 19(1), 397-441.   DOI
27 Tharme, R.E. and Smakhtin, V.U. (2003), "Environmental flow assessment in Asia: Capitalizing on existing momentum", Thailand Water Resour. Assoc., 2(1), 301-313.
28 Uday Kumar, A. and Jayakumar, K.V. (2018), "Assessment of hydrological alteration and environmental flow requirements for Srisailam dam on Krishna River, India", Water Policy, 20(6), 1176-1190.
29 Warner, A.T., Bach, L.B. and Hickey, J.T. (2014), "Restoring environmental flows through adaptive reservoir management planning, science and implementation through the sustainable rivers project", Hydrolog. Sci. J., 59(3-4), 770-785.   DOI
30 Wurbs, R.A. and Hoffpauir, R.J. (2017), "Environmental flow requirements in a water availability modeling system", Sustain. Water Quality Ecol., 9(1), 9-21.
31 Yang, N., Zhang, Y. and Duan, K. (2017), "Effect of hydrologic alteration on the community succession of macrophytes at Xiangyang Site, Hanjiang River, China", Scientifica, 1(1),1-10.