کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
306670 513108 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessment of soil structure repair due to wetting and drying cycles through 2D tomographic image analysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Assessment of soil structure repair due to wetting and drying cycles through 2D tomographic image analysis
چکیده انگلیسی

Soil structure is very important in agriculture since it affects soil and plant root attributes, such as root system distribution, soil water and nutrient transport, and heat transfer. Degraded soil structures may be repaired by wetting and drying cycles due to changes in the soil pore system. Gamma-ray computed tomography (CT) was used as a tool to evaluate the effect of wetting/drying cycles on soil structure repair, using samples collected in aluminum cylinders. A first-generation tomograph with an 241Am source and a 7.62 cm × 7.62 cm NaI(Tl) scintillation crystal detector coupled to a photomultiplier tube were employed. Image analysis and tomographic unit profiles showed that CT can provide an insight into sample structure in order to evaluate repairs and so improves the use of this tool in relation to the judgement of the quality of measured soil physical properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil and Tillage Research - Volume 94, Issue 2, June 2007, Pages 537–545
نویسندگان
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