INVESTIGATION OF SOILS AND WATER SALINAZATION IN GONBAD-ALAGOL PLAIN

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ZEHTABIAN GHOLAM REZA; SARABIYAN L.

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Journal: Desert Year:2004 | Volume:9 | Issue:2 Page(s): 169-181

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Information Journal Paper

Title

INVESTIGATION OF SOILS AND WATER SALINAZATION IN GONBAD-ALAGOL PLAIN

Author(s)

ZEHTABIAN GHOLAM REZA | SARABIYAN L. | Issue Writer Certificate

Keywords

SALINITY CAUSESQ4

SALINITY PROCEDUREQ4

WATER SURFACEQ2

GROUNDWATERQ2

SOILQ2

IRANQ2

Abstract

It is estimated that 15 % of the total land of word in various are saline and soudic, and about 34 % of asia continent land are influences to the sa1inization. IRAN because of spatial geographical position and also climate condition that is arid and semi arid, from salinization development viewpoint are the fifth level in the Asia. In this study we investigated a case study in the Gonbad Alagol plain, this plain located in 54´ 20° until 55´ 10° longitude,and in 37´until 37´ 40° latitude, average slop is 1/6 % and average high is 18 m, average annual precipitation is 314 mm, average annual temperature is 17.5c average evapotranspiration is 1659mm and the areas ofthis plain is about 1856.4 km2.For investigation of water degradation we studied surface and GROUNDWATER and for investigation of SOILs, we took some samples from different depth (0-50, 50-100, 100-150 cm) in the land unit. At the end, with use of geology, topography maps, arial photo and also water and SOILs information, we studied and investigated water and SOIL salinization in this plain.The results showed that natural and anthropogenic causes are effective in the SOIL and water salinization. In the natural causes category, the salinization indicators were: Caspian lake sediments in the past time, different geology formations, topography, low depth watertable, evaporation highly, low rain, and also influences of wind in the move of salin.And in the anthropogenic causes category, the salinization indicators were: Various irrigation system, undesirable drainage, built of road, and also entrance of industrial and domestic sewage in the lands. And also the results showed that in the 28 years period, about 2.4 % of SOIL in the plain changed from low salin (Ec:4-8ds/m), to the medium salin (Ec:8-15 ds/m), and 23.5 % of the SOIL changed from low saline to the high saline (Ec> 15 ds/m).And also the results from 9 years period for GROUNDWATER studied showed that amount of Ec in the 72.7 % of pizometers wells has been increasing, and in the 27.3 % of this pizometers has been decreasing, and also in the 68.75 % of the total pizometer the water level has been decreasing and in the 31.25 % of the pizometer has been rising.

Cites

DETERMINATION OF SOIL SALINITY IN FRANKENIA HIRSUTA L. HABITAT (CASE STUDY: SALINE AND ALKALINE RANGELANDS OF GOLESTAN PROVINCE)

References

گزارش مطالعات خاکشناسی اجمالی منطقه شمال گرگان رود (فرمانداری کل گرگان)

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APA: Copy

ZEHTABIAN, GHOLAM REZA, & SARABIYAN, L.. (2004). INVESTIGATION OF SOILS AND WATER SALINAZATION IN GONBAD-ALAGOL PLAIN. DESERT (BIABAN), 9(2), 169-181. SID. https://sid.ir/paper/5366/en

Vancouver: Copy

ZEHTABIAN GHOLAM REZA, SARABIYAN L.. INVESTIGATION OF SOILS AND WATER SALINAZATION IN GONBAD-ALAGOL PLAIN. DESERT (BIABAN)[Internet]. 2004;9(2):169-181. Available from: https://sid.ir/paper/5366/en

IEEE: Copy

GHOLAM REZA ZEHTABIAN, and L. SARABIYAN, “INVESTIGATION OF SOILS AND WATER SALINAZATION IN GONBAD-ALAGOL PLAIN,” DESERT (BIABAN), vol. 9, no. 2, pp. 169–181, 2004, [Online]. Available: https://sid.ir/paper/5366/en

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