Spatial Analysis of Soil Salinity in the Indus River Delta, Pakistan
Abstract
Soil salinization is one of the most damaging environmental problems in coastal areas, including Indus River Delta (IRD). Due to the reduction of flow in the Indus basin, saline water from the Arabian Sea is intruding into the IRD and has degraded the agricultural lands drastically. Focusing on the gravity of the problem, the present study was designed to explore the spatial distribution of soil salinity in the IRD. Physicochemical analysis of 375 soil samples randomly collected from 125 different locations within the study area was used. Analysis revealed that for the top 0-20cm of soil, about 66.4% of the samples had electrical conductivity (EC) values, and 72.8% sodium content (ESP) values higher than the FAO guidelines. Similarly, for soil depth of 20-40cm, 60.8% of the EC values, and 72% of ESP exceeded the safe limits. Finally, for 40-60cm of soil depth, 56.8% of the EC values and 79.2% of the ESP values were higher than the safe limits. Spatial analysis revealed that more than 50% of the IRD samples were affected by soil salinity. Reduced freshwater flow and the entry of saline water into the delta may likely be the causes of soil salinity in the IRD.
Keywords:
physicochemical properties, soil salinity, electrical conductivity, exchangeable sodium percentage, coastal areas, PakistanDownloads
References
A. A. Siyal, A. G. Siyal, Z. A. Abro, “Salt Affected Soil Their Identification and Reclamation”, Pakistan Journal of Applied Science, Vol. 2, No. 5, pp. 537-540, 2002 DOI: https://doi.org/10.3923/jas.2002.537.540
E. Asfaw, K. V. Suryabhagavan, M. Argaw, “Soil salinity modeling and mapping using remote sensing and GIS: The case of Wonji sugar cane irrigation farm, Ethiopia”, Journal of the Saudi Society of Agricultural Sciences, Vol. 17, No. 3, pp. 250-258, 2016 DOI: https://doi.org/10.1016/j.jssas.2016.05.003
S. Nawar, H. Buddenbaum, J. Hill, “Estimation of soil salinity using three quantitative methods based on visible and near-infrared reflectance spectroscopy: a case study from Egypt”, Arabian Journal of Geosciences, Vol. 8, No. 7, pp. 5127-5140, 2015 DOI: https://doi.org/10.1007/s12517-014-1580-y
J. Wang, J. Ding, A. Abulimiti, L. Cai, “Quantitative estimation of soil salinity by means of different modeling methods and visible-near infrared (VIS_NIR) spectroscopy, Ebinur Lake Wetland, Northwest China”, PeerJ, Vol. 6, ArticleID e4703, 2018 DOI: https://doi.org/10.7717/peerj.4703
A. Abuelgasim, R. Ammad, “Mapping soil salinity in arid and semi-arid regions using landsat 8 OLI satellite data”, Remote Sensing Applications: Society and Enviroment, Vol. 13, pp. 415-425, 2018 DOI: https://doi.org/10.1016/j.rsase.2018.12.010
E. I. Pankova, M. I. Gerasimova, T. V. Korolyuk, “Salt-affected soils in Russian, American, and international soil classification systems”, Eurasian Soil Science, Vol. 51, No. 11, pp. 1297–1308, 2018 DOI: https://doi.org/10.1134/S1064229318110078
FAO, “Extent and causes of salt-affected soils in participating countries. AGL: Global network on integrated soil management for sustainable use of salt-affected soils”, 2000
A. Abbas, S. Khan, “Using remote sensing techniques for appraisal of irrigated soil salinity”, International Congress on Modelling and Simulation, pp. 2632-2638, Modelling and Simulation Society of Australia and New Zealand, 2007
J. Yu, Y. Li, G. Han, D. Zhou, Y. Fu, B. Guan, G. Wang, K. Ning, H. Wu, J. Wang, “The spatial distribution characteristics of soil salinity in the coastal zone of Yellow River Delta”, Environmental Earth Sciences, Vol. 72, No. 2, pp. 589–599, 2014 DOI: https://doi.org/10.1007/s12665-013-2980-0
C. B. Ahmed, S. Magdich, B. Ben Rouina, M. Boukhris, F. Ben Abdullah, “Saline water irrigation effects on soil salinity distribution and some physiological responses of field-grown Chemlali olive”, Journal of Environmental Management, Vol. 113, pp. 538–544, 2012 DOI: https://doi.org/10.1016/j.jenvman.2012.03.016
D. Alexakis, D. Gotsis, S. Giakoumakis, “Evaluation of soil salinization in a Mediterranean site (Agoulinitsa District-West Greece)”, Arab Journal of Geosciences, Vol. 8, No. 3, pp. 1373-1383,2014 DOI: https://doi.org/10.1007/s12517-014-1279-0
A. Allbed, L. Kumar, Y. Y. Aldakheel, “Assessing soil salinity using soil salinity and vegetation indices derived from IKONOS high-spatial resolution imageries: Applications in a date palm dominated region”, Geoderma, Vol. 230-231, pp. 1-8, 2014 DOI: https://doi.org/10.1016/j.geoderma.2014.03.025
A. M. Saleh, “Evaluation of different soil salinity mapping using remote sensing indicators and regression techniques, Basrah, Iraq”, Journal of American Science, Vol. 13, No. 10, pp. 85-89, 2017
M. Zare-Mehrjardi, R. Taghizadeh-Mehrjardi, A. Akbarzadeh, “Evaluation of geostatistical techniques for mapping spatial distribution of soil ph, salinity and plant cover affected by environmental factors in southern Iran”, Notulae Scientia Biologicae, Vol. 2, No. 4, pp. 92-103, 2010 DOI: https://doi.org/10.15835/nsb244997
S. K. Behera, A. K. Shukla, “Spatial distribution of surface soil acidity, electrical conductivity, soil organic carbon content and exchangeable potassium, calcium and magnesium in some cropped acid soils of India”, Land Degradation and Development, Vol. 26, No. 1, pp. 71–79, 2015 DOI: https://doi.org/10.1002/ldr.2306
E. Hosseini, J. Gallichand, D. Marcotte, “Theoretical and experimental performance of spatial interpolation methods for soil salinity analysis”, Transactions of the ASAE, Vol. 37, No. 6, pp. 1799–1807, 1994 DOI: https://doi.org/10.13031/2013.28269
J. Mohammadi, “Evaluation and maping of soil salinity hazard in Ramhormoz area (Khuzestan) using disjungtive kriging”, Iran Agricultural Research, Vol. 19, pp. 83-98, 2000
T. P. Robinson, G. Metternicht, “Testing the performance of spatial interpolation techniques for mapping soil properties”, Computer and Electronics in Agriculture, Vol. 50, No. 2, pp. 97-108, 2006 DOI: https://doi.org/10.1016/j.compag.2005.07.003
T. Gorji, A. Tanik, E. Sertel, “Soil salinity prediction, and mapping using modern technologies”, Procedia Earth and Planetary Science, Vol. 15, pp. 507-512, 2015 DOI: https://doi.org/10.1016/j.proeps.2015.08.062
N. A. Kalhoro, Z. He, D. Xu, M. Faiz, L. V. Yafei, S. Naimatullah, A. H. Bhutto, “Vulnerability of the Indus River Delta of the North Arabian Sea, Pakistan”, GlobalNEST International Journal, Vol. 18, No. 3, pp. 599-610, 2016 DOI: https://doi.org/10.30955/gnj.001912
A. Inam, P. D. Clift, L. Giosan, A. R. Tabrez, M. Tahir, M. M. Rabbani, M. Danish, “The geographic, geological and oceanographic setting of the Indus River”, in: Large Rivers: Geomorphology and Management, John Wiley & Sons, 2007
ADB, Sindh Coastal and Inland Community Development Project, Interim Report, Vol. II, TA 4525-PAK, Asian Development Bank, 2005
S. Majeed, S. B. Zaman, I. Ali, S. Ahmed, “Situational Analysis of Sindh Coast-Issues and Options”, Managing Natural Resources for Sustaining Future Agriculture, Research Briefings, Vol. 2, No. 11, pp. 1-23, 2010
A. Alamgir, M. A. Khan, J. Schilling, S. S. Shaukat, S. Shahab, “Assessment of groundwater quality in the coastal area of Sindh province, Pakistan”, Environmental Monitoring and Assessment, Vol. 188, pp. 78-90, 2016 DOI: https://doi.org/10.1007/s10661-015-5061-x
S. A. Bablani, S. A. Soomro, “Evaluation of Seawater Intrusions in Left Bank Bediments of Coastal District Thatta, Sindh, Pakistan”, 1st SWIM-SWICA Joint Saltwater Intrusion Conference, Cagliari, Italy, September 24-29, 2006
G. S. Solangi, A. A. Siyal, M. M. Babar, P. Siyal, “Evaluation of surface water quality using the water quality index (WQI) and the synthetic pollution index (SPI): a case study of Indus Delta region of Pakistan”, Desalination and Water Treatment, Vol. 118, pp. 39-48, 2018 DOI: https://doi.org/10.5004/dwt.2018.22407
L. G. M. Pessoa, M. B. G. dos S. Freire, B. P. Wilcox, C. H. M. Green, R. J. T. De Araujo, J. A. Filho, “Spectral reflectance characteristics of soils in northeastern Brazil as influenced by salinity levels”, Environmental Monitoring and Assessment, Vol. 188, pp. 616, 2016 DOI: https://doi.org/10.1007/s10661-016-5631-6
FFC, Study on Water Escapages below Kotri Barrage to check seawater intrusion (Study-I), Final Report, Ministry of Water and Power. Government of Pakistan, 2005
A. A. Hammam, E. S. Mohamed, “Mapping soil salinity in the East Nile Delta using several methodological approaches of salinity assessment”, The Egyptian Journal of Remote Sensing and Space Science, 2018
FAO, Guidelines, Land Evaluation for Irrigated Agriculture, Soil Bull. No 55, FAO, 1985
J. Kotuby-Amacher, R. Koenig, B. Kitchen, Salinity and Plant Tolerance, Utah State University, 2000
H. T. Fourati, M. Bouaziz, M. Benzina, S. Bouaziz, “Modeling of soil salinity within a semic-arid region using spectral analysis”, Arabian Journal of Geosciences, Vol. 8, No. 12, pp. 11175-11182, 2015 DOI: https://doi.org/10.1007/s12517-015-2004-3
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