- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
STUDY THE VARIATIONS OF WEATHERING LEVELS FOR SOME SOILS FORMED UNDER DIFFERENT CLIMATEIC CONDITIONS / NORTHERN IRAQ | ||
| Mesopotamia Journal of Agriculture | ||
| Article 13, Volume 45, Issue 2, 2017, Pages 135-142 PDF (405.92 K) | ||
| Document Type: Research | ||
| DOI: 10.33899/magrj.2019.161307 | ||
| Authors | ||
| Saleh Mawlood* 1; Qahtan D. Essa2 | ||
| 1Soil Science & Water Resources Dept., College of Agriculture and Forestry, Mosul University. Iraq | ||
| 2Soil Science & Water Resources Dept., College of Agriculture and Forestry, Mosul University. Iraq | ||
| Abstract | ||
| Nine soil samples were selected from three different locations in Ninavah and Duhok Governorates. The locations included Makhmour, Hamdania and Zakho. The studied areas were selected according the variation of annual temperature and rainfall. Soil orders of Makhmour and Hamdania are both within Aridisols, but Zakho soil is a Vertisols. Soil profiles were described according to USDA and three soil samples from each profile were collected from three depths (0-20, 20-40 and 40-60 cm). Chemical analysis was conducted using (XRF) Technique. Calculation of weathering parameters has been done such as chemical index of variations (CIA), index of chemical variation (ICV) and weathering index (WI). Results of weathering parameters included that the highest levels of weathering levels was found in Zakho soil (Average annual rainfall 550 mm) and the lowest weathering levels in Makhmour soil (Average annual rainfall 240 mm). Results of XRF Analysis also showed a clear increasing in immobile oxides of (SiO2, Fe2O3 and Al2O3) and trace (rare) elements (ZrO, MnO and TiO2) in Zakho soil and decreased in Makhmour soil. However the mobile oxides of (CaO) and the loss in ignition was increased in Makhmour soil and gradually decreased in Hamdania and reach its lowest levels in Zakho soil. | ||
| Keywords | ||
| Weathering; XRF; oxides | ||
|
Statistics Article View: 332 PDF Download: 389 |
||