Do you want to publish a course? Click here

Improvement of Soil Physical Properties at B'lay Area in South Syria to Limit Land Degradation

تحسين الخصائص الفيزيائية للتربة في منطقة بلي في جنوب سوريا للحد من تدهور الأراضي

2184   1   80   0 ( 0 )
 Publication date 2011
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

Land degradation deteriorates environmental systems and has direct and negative effects on crops yield, pastures and forests. Land degradation is an old phenomenon but in the last years it accelerated and spread widely to reach some interne areas in Syria like the studied area (Blay) which situated on the road of Damascus-Sowyda. In this paper morphological, physio-chemical, hydraulic and fertility study was done to clarify and define the reasons of this degradation in this specified area. Three land sections were done and morphologically described on site, soil samples were taken for analyses in the laboratory. Results showed that, the degradation may be related to different reasons like high apparent density which indicates the soil compacting, the low cation exchange capacity (CEC) and the low hydraulic conductivity with a low percentage of available water. Results also showed that the adding different percentage of soil conditioners, like hay, compost, polymer and manure ameliorates in different ratios the physical and hydraulic properties of soil.


Artificial intelligence review:
Research summary
تتناول هذه الورقة البحثية تدهور الأراضي في منطقة بلاي بجنوب سوريا وتأثيره السلبي على المحاصيل والمراعي والغابات. يوضح البحث أن تدهور الأراضي ظاهرة قديمة ولكنها تسارعت وانتشرت في السنوات الأخيرة لتصل إلى مناطق داخلية في سوريا. تم إجراء دراسة مورفولوجية وفيزيائية-كيميائية وهيدروليكية وخصوبة للتربة لتحديد أسباب التدهور. أظهرت النتائج أن التدهور قد يكون مرتبطًا بأسباب مختلفة مثل الكثافة الظاهرية العالية التي تشير إلى انضغاط التربة، وانخفاض سعة التبادل الكاتيوني (CEC)، وانخفاض التوصيلية الهيدروليكية ونسبة الماء المتاح. كما أظهرت النتائج أن إضافة نسب مختلفة من محسنات التربة مثل التبن والسماد العضوي والبوليمر والسماد الحيواني تحسن بنسب مختلفة الخصائص الفيزيائية والهيدروليكية للتربة.
Critical review
دراسة نقدية: تقدم هذه الورقة البحثية تحليلًا شاملًا لتدهور الأراضي في منطقة بلاي بجنوب سوريا، وتسلط الضوء على العوامل المختلفة التي تسهم في هذا التدهور. ومع ذلك، يمكن أن تكون هناك بعض النقاط التي تحتاج إلى مزيد من التوضيح. على سبيل المثال، لم يتم توضيح كيفية اختيار نسب محسنات التربة المختلفة ولماذا تم اختيار هذه النسب بالذات. كما أن الدراسة قد تستفيد من تحليل أعمق لتأثيرات محسنات التربة على المدى الطويل. بالإضافة إلى ذلك، قد يكون من المفيد تضمين دراسات مقارنة مع مناطق أخرى تعاني من تدهور الأراضي لتقديم صورة أكثر شمولية.
Questions related to the research
  1. ما هي الأسباب الرئيسية لتدهور الأراضي في منطقة بلاي بجنوب سوريا؟

    الأسباب الرئيسية لتدهور الأراضي تشمل الكثافة الظاهرية العالية التي تشير إلى انضغاط التربة، وانخفاض سعة التبادل الكاتيوني (CEC)، وانخفاض التوصيلية الهيدروليكية ونسبة الماء المتاح.

  2. ما هي محسنات التربة التي تم استخدامها في الدراسة؟

    تم استخدام التبن، السماد العضوي، البوليمر، والسماد الحيواني كمحسنات للتربة في الدراسة.

  3. كيف تؤثر محسنات التربة على الخصائص الفيزيائية والهيدروليكية للتربة؟

    تعمل محسنات التربة على تحسين الخصائص الفيزيائية والهيدروليكية للتربة بنسب مختلفة، مما يساعد في تقليل انضغاط التربة وزيادة سعة التبادل الكاتيوني والتوصيلية الهيدروليكية.

  4. ما هي الفوائد المحتملة لتحسين التربة في منطقة بلاي؟

    تحسين التربة يمكن أن يؤدي إلى زيادة إنتاجية المحاصيل، تحسين المراعي والغابات، وتقليل تأثير تدهور الأراضي على البيئة والنظام البيئي.


References used
Buol, S. W., F. D. Hole, R. J. Mc-Craken, and R. J. Southared. (1997). Soil genesis and classification, 4th edition, Iowa state univ. Press
De coninck, F. (1978). Physico-chemical aspects of pedogenesis I.T.C, state univ. of Ghent, Belgium, 136 p
NRCS. (1996). Soil survey lab. Methods manual, soil survey investigation report No. 42, version 3.0 USDA
rate research

Read More

This study was conducted to evaluation of some marshes soil physical characteristics at south Iraq from studying soil properties and accounting the simple and multiple correlation coefficients and relation equations, from which we can predicted th e soil aggregate stability modules of rapture and soil bulk density. Three transacts were chosen, which cover all south Iraqi marshes, with selection of the larger marshes at every transect. The transects are: First toward Amara included marshes of Al-Msendak, Al-Saadiah and Al-Wadiah. Second toward Al- Nasiriah which included the marshes of Delmag, Ghumugaa and Al-hammar. Third toward Samawa which included the marshes of Al- Ramah and Lafti.
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.
This study was conducted during the 2011-2012 and 2012-2013 seasons in Abu-Jarash orchards area in Damascus to identify the effect of improved organic materials as sludge, manure and compost in improving some soil physical characteristics and whea t productivity. Results showed that the three types of organic material affected the physical characteristics of the studied soil. They decreased its bulk density, increased its total porosity and increased its ability of holding water at field capacity. Results also showed that the compost of city wastes was the best in improving soil physical properties. The three organic materials, particularly the sludge increased the total productivity of wheat (Sham3).
Some magnetic and physical properties ( magnetic susceptibility , intensity of remanent magnetisation , ac current electrical conductivity and density ) of ١٨١ samples from ٣٠ sites of Middle Miocene basaltic rocks (β 1 N2) from Al- Kisweh region south of Damascus were studied, in order to extend the previous study ( Abou-Deeb, ١٩٩٧) to other regions so that these properties might be used as characteristic factors in discriminating the neighbouring basaltic flows .The measurement of the in situ magnetic susceptibility of ٧٥ basaltic sites , distributed on ٨ localities , in the region helped to calculate the mean value of the magnetic susceptibility of each locality and an overall mean value of the whole region, which might be used in any magnetic interpretation of the magnetic anomalies. Also, the density of ١٢٨ samples were measured and a mean value of the density of each locality and an overall mean density were calculated in order to be used in any future interpretation of any gravity anomaly in the region .
The study has shown that the apparent bulk density of soil increases with the increase of compression and moisture during press. The maximum rate of increase in depth was 0 – 20 cm that amounted 0.38g/cm3 at compression by 257.44-kilopascal and moi sture average at compression by 19.03% (equal to 60% of the field capacity average of the soil) in comparison with the non-existence of compression. In addition, the size of the pores bigger than 50 microns decreased at the same above compression and above moisture in depth of zero – 20 cm by 20.20%. The size of pores bigger than 10 microns decreased by 20.65% in comparison with the non-existence of compression. While it was noted that the the maximum loss of root yield that amounted 17.52%, at compression by 257.44 kilopascal, and moisture 19.03%.
comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا