Total elemental analysis of soils under different vegetation cover north of Iraq | ||
| journal of kerbala university | ||
| Article 1, Volume 8, Issue 0, January 2012, Pages 98-108 PDF (0 K) | ||
| Abstract | ||
| This study was conducted to investigate the effect of forest tree types on total elemental analysis on some selected forest soils located in northern Iraq. Ten forest soil sites were chosen(oak , green grain , pine , almond and wild pears ). Some of physical and chemical properties were determined , total elemental analysis was determinate which used to calculate four molecular ratios of elements in mineral lattice include which showed variation within ( ، ، ، ) horizons of some pedons especially in the forest soils also this trend vary in the different forest tree types inside and between forest soils and control soils in other side . The molecular ratio ranged from ( 1.85-8.31 ) , the lowest value in the first horizon for control pedon in sarsank , while the highest value in the first horizon of green grain forest . For ratio ranged from 1.98-8.61 the lowest value was found in the first horizon of almond pedon and the highest value registered in the second horizon for pine forest . In general,the lowest values of these ratios were found within surface horizons as compared with subsurface horizons for studied soils . The ratio ranged between (1.29-5.33) and the lowest value was noticed in the first horizon of almond forest while the highest value was found in the second horizon for sarsank forest also this ratio distinguished by increasing with depth . The result of ranged from (0.07-0.64) the lowest value was in the first horizon of wild pears forest in mergasur and the highest value was registered in the last horizon of wild pears forest and this ratio decreased within surface horizon or followed which consider the major zone of microbial activity. | ||
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