Hydro-Chemistry of Gokyo Valley, Sagarmatha (Everest) National Park, Nepal


This research work records the baseline inventory of selected ions in running waters of Gokyo Valley, Nepal and tries to establish relationship of these ions’ concentration with elevation gradient. Among these selected hydro-chemical parameters, the average concentration of Ca2+, Mg2+, and total silica were determined to be 3.25 (±2.02), 0.64 (±0.47), 207.2 (±423.01) and 0.36 (±0.17) mg/L respectively. Concentration of these parameters was low compared to earlier studies except that could be justified too since the sampling was performed only once in drier period with low atmospheric input of acid protons required for weathering process. Moreover, Pearson Product-moment Correlation Coefficients (r) for elevation gradient and concentration of Ca2+, Mg2+, and total silica were determined to be +0.350, +0.145, +0.101 and -0.275 respectively. Such weak relationship between these parameters and elevation gradient suggests that the concentration of these ions is related to weathering phenomena, glacier and watershed characteristics and snow cover dynamics in Gokyo Valley.

Share and Cite:

Bhandari, R. , Sharma, S. , Merz, J. and Garton, R. (2015) Hydro-Chemistry of Gokyo Valley, Sagarmatha (Everest) National Park, Nepal. Journal of Geoscience and Environment Protection, 3, 74-81. doi: 10.4236/gep.2015.39007.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Tartari, G.A., Tartari, G. and Mosello, R. (1998) Water Chemistry of High Altitude Lakes in the Khumbu and Imja Kola Valleys (Nepalese Himalayas). Memorie dell’lstituto Italiano di Idrolnologia, 57, 51-76.
[2] Loffler, H. (1969) High Altitude Lakes in Mt Everest Region. Verhandlungen Internationale Vereinigung Limnologie, 17, 373-385.
[3] Bhuju, D.R., Sharma, S., Jha, P.K. and Gaire, N.P. (2012) Scientific Discourse of Lakes in Nepal. Nepal Journal of Science and Technology, 13, 147-158.
[4] Sharma, C.M., Sharma, S., Bajracharya, R.M., Gurung, S., Juttner, I., Kang, S., Zhang, Q. and Li, Q. (2012) First Results on Bathymetry and Limnology of High-Altitude Lakes in the Gokyo Valley, Sagarmatha (Everest) National Park, Nepal. Limnology, 13, 181-192.
[5] Gurung, S. (2012) High Altitude Aquatic Biodiversity of Gokyo Lake Series in Sagarmatha National Park, Nepal. A Dissertation, Submitted for the Partial Fulfillment of the Requirements for the Doctoral Degree (Ph.D.) in Environmental Science. Central Library, Kathmandu University, Lalitpur.
[6] Reynolds, B., Jenkins, A., Chapman, P.J. and Wilkinson, J. (1998) Stream hydrochemistry of the Khumbu, Annapurna and Langtang Regions of Nepal. Ecovision World Monograph Series, 123-141.
[7] Battarbee, R.W. (2005) Mountain Lakes, Pristine or Polluted? Limnetica, 24, 1-8.
[8] Kallf, J. (2002) Limnology. Prentice Hall. Upper Saddle River.
[9] National Population and Housing Census 2011. Volume 02, NPHC 2011, Government of Nepal National Planning Commission Secretariat Central Bureau of Statistics Kathmandu, Nepal.
[10] APHA, AWWA and WEF (1998) Standard Methods for the Examination of Water and Wastewater. 20th Edition, American Public Health Association, Washington DC.
[11] Reynolds, B., Chapman, B.J., French, M.C., Jenkins, A. and Wheater, H.S. (1995) Major, Minor and Trace Element Chemistry of Surface Waters in the Everest region of Nepal. Proceedings of a Boulder Symposium, IAHS, Publication No. 228.
[12] Tratner, M., Brown, G., Raiswell, R., Sharp, M. and Gurnell, A. (1993) A Conceptual Model of Solute Acquisition by Alpine Glacial Meltwaters. Journal of Glaciology, 39, 573-581.

Copyright © 2023 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.