کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6773196 | 1431826 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distinguishing transport-limited and detachment-limited processes of interrill erosion on steep slopes in the Chinese loessial region
ترجمه فارسی عنوان
شناسایی فرآیندهای محدود و محدود به انحلال فرسایش درونی در دامنه های شیب دار در منطقه لوساین چینی
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کلمات کلیدی
میزان انشعاب چلپ چلوپ، نرخ فرسایش درون مصنوعی، حمل و نقل محدود، انهدام محدود گرادیان شیب،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Distinguishing transport- and detachment-limited processes of interrill erosion on the basis of the ratio of interrill erosion rate (Q) to splash detachment rate (D) was investigated to fully understand interrill erosion processes. A modified experimental device was used to measure interrill erosion and splash detachment rates simultaneously at 12.23%, 17.63%, 26.8%, 36.4%, 40.40% and 46.63% slope gradients under rainfall intensities of 48 and 120â¯mmâ¯hâ1. Results showed that the transport-limited (Qâ¯<â¯D), detachment-limited (Qâ¯>â¯D), and transport- and detachment-limited (Qâ¯<â¯D & Qâ¯>â¯D) processes were respectively included in individual rainfall event, which were influenced by slope gradient and rainfall intensity, and the transport-limited process changed to a detachment-limited process early when the slope gradients were steep. Furthermore, the ratio of interrill erosion rate to splash detachment rate under rainfall intensities of 48 and 120â¯mmâ¯hâ1 increased from 0.006 to 36.91 and from 0.14 to 15.65 as the slope gradient increased from 12.23% to 46.63%, respectively. The research findings emphasise the importance of quantifying transport- and detachment-limited processes on steep slopes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil and Tillage Research - Volume 177, April 2018, Pages 88-96
Journal: Soil and Tillage Research - Volume 177, April 2018, Pages 88-96
نویسندگان
Bing Wu, Zhanli Wang, Qingwei Zhang, Nan Shen,