HYDROCHEMICAL COMPOSITION AND IRRIGATION WATER QUALITY OF LERMA-CHAPALA RIVER SYSTEM, MEXICO
The Lerma River originates in the Almoloya lagoon, in Mexico State. It is 750 km. long and belongs to the Lerma Santiago-Pacífico basin, one of the most important in Mexico due to its intense agricultural and industrial activity. To carry out this research, during the summer and autumn of 2013, wate...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2015 |
| Country: | México |
| Institution: | Universidad Autónoma de Nayarit |
| Repository: | Repositorio Institucional Aramara de la UAN |
| Language: | English |
| OAI Identifier: | oai:dspace.uan.mx:123456789/144 |
| Online Access: | http://dspace.uan.mx:8080/jspui/handle/123456789/144 |
| Access Level: | Open access |
| Keyword: | Lerma River Hydrogeochemistry Salinity Sodicity CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA [6] |
| Summary: | The Lerma River originates in the Almoloya lagoon, in Mexico State. It is 750 km. long and belongs to the Lerma Santiago-Pacífico basin, one of the most important in Mexico due to its intense agricultural and industrial activity. To carry out this research, during the summer and autumn of 2013, water samples were collected and analyzed from 39 sampling stations the Lerma-Chapala river system. The objective was to know the hydrochemical composition and agronomic quality of the water in the Lerma river and lake Chapala through the determination of variables: Ca2+ , Mg2+ , Na+ , K+ , CO3 2- , HCO3 - , Cl- , SO4 2- , total dissolved solids (TDS), hydrogen potential (pH), electrical conductivity (EC) and sodium adsorption ratio (SAR). The results indicated that the type of water is sodic-bicarbonated and mixed bicarbonated, which was attributed to the discharges of wastewater and the water supply from tributary rivers in the Lerma-Chapala Basin. The concentration of TDS was low (< 674 mg L-1 ). The EC displayed values between 0.307 and 1.129 dS m-1 , which is why, in 66.6% of the sampling stations, water has no use restriction for agricultural irrigation. SAR average was 2.2 meq L-1 ; the joint EC-SAR values suggested the classification of water as C2-S1 (74.4%) and C3-S1 (25.6%), indicating its suitability for agricultural irrigation. |
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