Application of Polyacrylamide for Splash Erosion Control on Marl Soil
Authors
Abstract:
Splash erosion is recognized as the first stage in the process of erosion that results in bombardment of the soil's surface with rain drops. Two basic processes in soil erosion are the dispersement of soil particles by rain drops and the changes caused to the soil's structure, which are then moved by runoff. In this research,the effect of various polyacrylamide (PAM)values (0, 0.2, 0.4 and 0.6 g/m2) on the amount of splash erosion at two rain intensities (95 and 120 mm/h)by the use of laboratory generated rain (FEL3)were analyzed. Experiments were undertaken with marl soil. After calibrating the rainfall simulator, soil samples were weighed and treated with PAM. Next the effects of rainfall intensities at95 and 120 mm/h for 10 minutes were studied. Initially samples were oven-dried for 24 hours, at 105ºC. Next, samples were reweighed to determine the amount of soil lost. According to the results, there was no statistical correlation between rain intensity at 95 and 120 mm/h and decreased soil erosion.Howeverthere was a relationship between the different amounts of PAM (0, 0.2, 0.4 and 0.6 g/m2 ) and splash erosion control. The most effect on controlling splash soil erosion was seen with PAM at 6 kilograms/hectare when compared with 2 and 4 kilograms/hectare, which is 28.93% effective in decreasing erosion. The main two factors, intensity and treatment,were not statistically significant. There was no statistical significance noted at a rain intensity of 95 mm/h. Howeverat a rain intensity 120 mm/h, with different amounts of PAM, there was a significant difference in splash erosion control at 4 kilogram/hectare which had a maximum effect of 40% in controlling soil erosion.
similar resources
CHANGE OF SPLASH EROSION RATE IN RAINFALL DIFFERENT DURATION AND INTENSITY ON MARL SOILS
Splash erosion is recognized as the first stage in the process of erosion that results in bombardment of the soil's surface with rain drops. Two basic processes in soil erosion are the dispersion of soil particles by rain drops and the changes caused to the soil's structure, which are then moved by runoff. In this research, the effect of various rainfall intensity (60, 90 and 120 mm/hr) on the ...
full textapplication of upfc based on svpwm for power quality improvement
در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...
15 صفحه اولEffect of soil structure breakdown on splash erosion in different soil textures
This study was carried out to investigate the role of soil structure in splash erosion in semi-arid soils. Splash erosion was measured in four soil textures (silty clay loam, sandy clay loam, silt loam and sandy loam) with two soil structure conditions (with natural structure and under aggregate breakdown) using a simulated rainfall with 50 mmh-1 in intensity for 30 min in splash caps with 10-c...
full textComparing the Effects of Vetiver and Polyacrylamide on Soil Structural Stability and Erosion Indices
Extended abstract 1- INTRODUCTION Soil erosion is one of the most important problems of the environment, natural resources, and agriculture in the world. Soil structure stability is the key element of soil health, the main factor in the improvement or degradation of soils, and the important point in evaluating the effects of land management and the operations practices to control soil ero...
full textErosion Control in Furrow Irrigation Using Polyacrylamide
Currently gravity irrigation remains the most widely used in agricultural areas and 90 percent of plantings, the water is applied to the plots by gravity. One of the main problems with these systems is erosion, which is a by product of the erosive forces of water over the row, which brings soil loss and therefore decreases in crop yield. Erosion is the removal of surface soil material caused by...
full textMy Resources
Journal title
volume 1 issue 3
pages 31- 44
publication date 2011-11
By following a journal you will be notified via email when a new issue of this journal is published.
No Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023