Usability of Shallow Groundwater in Irrigated Agriculture: A Case Study From Turkey

Öz

Controlled drainage supports to save fresh water by providing part of the consumptive use through the capillary rise from shallow water tables. However while using groundwater, monitoring water table level (WTL) during irrigation season is required in terms of plant growth and environmental conditions. Ground water conditions can best be analysed by plotting ground water data on maps. WTL maps (WTMs) are prepared for some typical conditions e.g. the lowest or highest WTL dependent time and location. In the lowest water table map (LWTM), the areas with WTL at a depth between 0 and 1.00 m indicate that ground water is in the plant root zone in all year. In the present study, relationship between ground water level and irrigation water quantity (IWQ) tried to be determined using LWTMs and yearly amount of IWQ between 1992 and 2009 water years in Erzincan irrigation project area. The monthly data taken from 116 observation wells are used to draw LWTM to determine the interaction between WTL and IWQ, and then the long–term data were analysed using Pearson Correlation test and SPSSWIN 10.0 software. Statistical inferences indicated that shallow ground water is potentially valuable source of additional water supply to meet crop water requirements in Erzincan irrigation area.

Anahtar Kelimeler

• Shallow Groundwater,Water Saving,Watertable,Irrigation Practices,SPSSWIN

Kaynakça

1. Akkaya A.S.T, Gundogdu K.S 2007. Mapping Multi-Year Groundwater Depth Patterns from Time Series Analyses of Seasonally Lowest Depth-to-Groundwater Maps in Irrigation Areas. Polish J. of Environ. Stud. Vol. 16, No. 2 (2007), p:183-190.
2. Ayars J. E, Christen E. W, Soppe R. W, Meyer W. S. 2006. The resource potential of in- situ shallow ground water use in irrigated agriculture: a review. Irrigation Science. 24: 147- 160.DOI 10.1007/s00271 -005-0003-y.
3. DMİ, 2017. Some meteorological data in field of research. DMI (Turkish State Meteorological Service)-TURKEY.
4. DSI, 2005. Groundwater Monitoring Guidebook for irrigated Lands of Turkey. State Hydraulic Works, Ankara, Turkey.
5. Grimes D.W., Henderson, D.W. 1984. Developing the resource potential of a shallow ground water. California Water Resources Bulletin:1 88.
6. Güngör Y. and Erözel Z. 1994. Drenaj ve Arazi Islahı. Ankara Üniversitesi. Ziraat Fakültesi Yayınları No:1341. Ders Kitabı:389.(in Turkish)
7. Kruse E.G., Young D.A., Champion, D.F. 1985. Effects of saline watertable on corn irrigation:444-453. IN C.G. Keyes and T.J. Ward(ed). Development and Management aspects of Irrigation and Drainage Systems. (Proceedings of Specialty Conference ed.) ASCE, New york.
8. Mahajan G. 2008. Evaluation and Development of Groundwater. ISBN 978-81-313-0339 9:70-75.

9. Meyer W.S., White B., Smith D. 1996. Water use of lucerne over shallow watertables in Australia, Proceedings of International Conference, Evapotranspiration and Irrigation Scheduling, nov. 3-6, 1996. San Antonio, Texas, Ed. C.R. Camp, E.J. Sadler, R.E. Yoder, ASAE. Joseph, MI, p: 1140-1145.
10. Nwadukwe P.O., Abdulmumin S., Aroray Y. and IKE I.F. 1989.Effects of irrigation frequency and water table depths on root growth and yield of tomato in a soil. Agricultural Water Management 16(3):241-249.
11. De Ridder N.A. 1994. Groundwater Investigations in: Drainage Principles and Applications. Edited by H.P. Ritzema. International Institute for Land Reclamation and Improvement P.O. Box 45. 6700 AA Wageningen the Netherlands.
12. Smedema L.K., Rycroft D.W. 1983. Land Drainage. Planning and Design of Agricultural Drainage Systems. Batsford Academic and Educational Ltd.:1-376. London.
13. Smedema L.K. 1990. Natural Salinity Hazards of Irrigation Development in (Semi-) Arid Regions. Proceedings of Symposium on Land Drainage for Salinity Control in Arid and Semi-Arid Regions. ICID_CIID. Cairo. Egypt.
14. Torres J.S. and Hanks R.J. 1989. Modelling water table contribution to crop evapotranspiration. Irrigation Science 10(4):265-279.
15. Wesström I., Messing, I., Linnér H., Lindström, J. 2001.Controlled Drainage – Effects on Drain Outflow and Water Quality. Agricultural water Management, Volume 47, Issue 2, p:85-100.