The Seventh sector is located on the right bank of the Euphrates River at the town of ALbu- Kamal, the Syrian-Iraq border. Invest most heavily sector too, by planting different crops which irrigated by irrigation networks consisting of canals and ear
then trenches. Research aims to evaluate the salinity of agricultural soils and unconfined groundwater by doing field surveying of agricultural soils of horizons from ground surface till depth 200cm. and making detailed chemical analysis of free groundwater and evaluate the quality of it to determine the salinity regions and the salinity degree. The salinity of agricultural soils of the sector are sulfate-chlorine and little degree chlorine - sulfate and chlorine classified non salinity –little salinity and little degree moderate salinity to very highly and highly salinity. The salinity of free groundwater between 1.3-28.5 g/l. and classified chlorine sulfate-magnesia calcic and sometimes sulfate chlorine- calcic magnesia. The research recommend to study and determine the leachingrequirement of salinity regions from actual test or choosing the most appropriate experimental equations.
Studying and drawing the soil maps is considered by using the way of data
integrating the remote sensing and the geographical information system of new and
developed technologies in which we define what all related to soil through these studies
an
d drawing maps to it for example
a possibility of drawing the following maps:
1- Drawing a map of situation and the materials of soil surface.
2- Drawing a map of difference of soil colors sensing the soil content of organic
matter.
3- A map of lands declination and their salinity and efficiency of drainage in them.
4- Drawing a map of drainage.
In the research performing and drawing the up mentioned soil maps for south-west of
Hama region by using the new technologies which they have opened for us many horizons
in all domains related to many subjects particularly, the subject of this research .
The provision of adequate drainage and the accompanying problem of
accumulation of salt in soil have plagued irrigated agriculture for
centuries. Soil salinity is one of the major problems in arid and semi-arid
zones. In Euphrates valley the high
groundwater level and its high
evaporation rate caused a serious salinity problem. This study was aimed
to allocate the dangerous areas in terms of high water level resulted from
the recent and expected activities. Drainage wells will be drilled at these
areas in order to lower the groundwater level and prevent further soil
salinity.