کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4433392 1619952 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of dendrochronological method in Pinus halepensis to estimate the soil erosion in the South East of Madrid (Spain)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Use of dendrochronological method in Pinus halepensis to estimate the soil erosion in the South East of Madrid (Spain)
چکیده انگلیسی

The rate of soil erosion in pine forests (Pinus halepensis) located in the Southeast of Madrid has been estimated using dendrochronological analysis based on the change in ring-growth pattern from concentric to eccentric when the root is exposed. Using 49 roots spread across five inclined areas, it has been found that the length and direction of the hillsides, as well as their vegetation cover affect the rate of erosion, while the slope itself does not. The erosion rates found for the different areas studied vary between 3.5 and 8.8 mm year− 1, that is between 40 and 101 t ha− 1 year− 1 respectively. These values are between 2 and 3 times greater than those predicted by USLE, for which this equation underestimates soil loss for Central Spain's Mediterranean conditions. Nonetheless, both methods (using dendrochronology to determine actual soil loss and theoretical prediction with USLE) are able to establish the same significant differences among the areas studied, allowing for the comparative estimate of the severity of the area's erosion problem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 378, Issues 1–2, 25 May 2007, Pages 156–160
نویسندگان
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