Do you want to publish a course? Click here

The study was carried out at Soil Research Center in the province of Daraa during 2011 in order to study some physical and moisture characteristics for cinnamon soil, which occupies (48000 km²), equivalent to 26% of the area of the Syrian Arab Rep ublic and represents the cultivation of growing field crops with a rainfall ranges between 150- 300 mm. The results showed that the mechanical analysis for soil referred that its texture is clay with a good ability to retain water, the field capacity rated between (30-38.85)%. The studied soil has high value of available water (38.93mm) and useful water (25.69mm) in the surface layer. The highest value of permanent wilting point and hygroscopic moisture was reached in the final depth in studied profile soil, It was also distinguished a high total porosity ranged between 51.78 and 55.59% with a good air porosity amounted to 9.38 - 15.47 % in different depths and with the decline to 5.51 % in the depth 30 - 45cm.
Inhabitants' increase in the governorate of Daraa has great effect on civil development, as it is the case in other governorates of Syria, this is quite evident in the increase of inhabitants in civil centers, and its horizontal extension continuo usly. Due to the importance of this subject, I studied it, where the research included a survey of its problem that the continuous inhabitants' increase has been the cause of the increase of the number and volume of civil centers during the period between 1970-2010, where the rate of civilization increased by 14.3% to 41.6% The number of inhabitants in the governorate is expected to reach (1.631.005) inhabitants in the year 2025. that's with an increase of 505.005 inhabitants. The research included its importance, objective and courses, the developed number of inhabitants in the governorate, and effective factors that affect it, with the increasing number of civil centers. In addition to studying indications of civil development such as education, health, culture, services, industry, housing, then discussed their problems and impediments, such as the increasing rates of inhabitants, the random housing, environmental pollution, then presenting future suggestions and solutions for them.
A field study has been carried out in order to know the important species belonging to the family Syrphidae Diptera . in some field in Ezraa & jellien of Daraa governorate during the period 1/3 /2003 till 30/8/2003 .
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا