کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9491289 1630179 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of pebble size and cover on rainfall interception by gravel mulch
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Influence of pebble size and cover on rainfall interception by gravel mulch
چکیده انگلیسی
Rainfall interception by surface rock fragments may be an important component of the water balance of the stone mulched fields. However, interception loss by rock fragment layer receive only slight attention and field studies under natural rainfall are still scarce. A field study was conducted to investigate the effects of pebble size and cover percentage on interception during naturally occurring rainfall events in the semiarid loess regions of northwest China. The results indicate that pebble size and cover percentage have a different effects on rainfall interception. Interception increased with pebble cover percentage but decreased with pebble size. Interception was 8.9% of the gross rainfall at the 25% cover, followed by 15.7, 21.8 and 29.8% at the 50, 75 and 100% cover, respectively. In the case of pebble size, interception accounted for 36.4% of the gross rainfall for the pebble diameter of 2.5 cm, which is about 1.2, 2.1 and 2.5 times higher than that for the pebble diameters of 5.0, 7.5 and 10.0 cm, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 312, Issues 1–4, 10 October 2005, Pages 70-78
نویسندگان
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