[1]Bai Hongying,Tang Keli,Zhang Keli,et al.Study on Man-made Accelerated Erosion of Grassland Being Reclaimed by Simulated Rainfall Experiment[J].Research of Soil and Water Conservation,1993,(01):87-93.
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Study on Man-made Accelerated Erosion of Grassland Being Reclaimed by Simulated Rainfall Experiment
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
Number of periods:
1993 01
Page number:
87-93
Column:
Public date:
1900-01-01
- Title:
- Study on Man-made Accelerated Erosion of Grassland Being Reclaimed by Simulated Rainfall Experiment
- Keywords:
- simulated rainfall experiment; grass vegetation being destroyed; wasteland runoff and sediment
- CLC:
- -
- DOI:
- -
- Abstract:
- Effect of grass vegetation destroyed by human on man-made accelerated erosion pro-tess has been analysed in this paper,using simulated rainfall experiement,The results show that after grass land being destroyed and reclaimed,runoff yield increases 1273～3050m3/km2,sedi-ment yield is 500～1700t/km2,at single rainfall condition.Soil erosion intensity on the wasteland (wasteland after 4 years)is slight,but the wasteland being cultivated,runoff yield and soil loss is much bigger than those in the grass land being cultivated,and sediment yield is 6.2 times than that of grass land being cultivated.The interception rainfall of leaf and stalk parts is 6.9mm,it occupies 15.5% of rainfall amount.Impact of topography and rainfall on soil erosion is not obvious in grass land,but after grass land being cultivated,soil loss increases with increase of rainfall intensity and slope degree.
- References:
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[1] 唐克丽.黄土高原土壤侵蚀过程和生态环境演变的关系.黄河流域环境演变与水沙运行规律, 北京:地质出版社, 1991
[2] 陈文亮.组合侧喷式野外人工模拟降雨装置.水土保持通报, 1984(5)
[3] (英)M.J柯克比等.土壤侵蚀.水利电力出版社
[4] 吴饮孝等黄土高原植物根系提高土壤抗冲性能的研究——Ⅱ.草木植物根系提高表层土壤抗冲刷力的试验分析.水土保持通报, 1990(1)
[5] 刘元保等.坡耕地不同地面贾盖的水土流失试验研究, 水土保持学报, 1990(1)
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Last Update:
1900-01-01