| 裸露耕地土壤风蚀跃移颗粒分布特征的试验研究 |
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| 引用本文： | 李晓丽,申向东.裸露耕地土壤风蚀跃移颗粒分布特征的试验研究[J].农业工程学报,2006,22(5):74-77. |
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| 作者姓名： | 李晓丽 申向东 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018 |
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| 摘 要： | 以内蒙古阴山北部的典型农牧交错带耕地为试验区，利用DEM6型轻便三杯风向风速表和LV50便携式风速仪(可测瞬时风速和任一时段的平均风速)，采用SC—I型沙尘采集器收集跃移沙粒，并对收集到的沙粒进行筛分、称重，详细地分析了不同高度风蚀物百分含量、输沙量等风沙运动主要影响因素的变化特征，得出了耕地土壤在风沙跃移运动中的粒径分布特征，初步了解了该地区土壤风蚀的特点，为今后风沙运动力学理论的深入研究，以及实施保护性耕作和其他土地荒漠化的防治提供依据。
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| 关 键 词： | 风蚀量 风蚀物 裸露耕地 |
| 文章编号： | 1002-6819(2006)05-0074-04 |
| 收稿时间： | 6/6/2005 12:00:00 AM |
| 修稿时间： | 3/1/2006 12:00:00 AM |
Experimental study on the distribution characteristics of the saltation particle of aeolian sediment in bare tillage |
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| Li Xiaoli and Shen Xiangdong.Experimental study on the distribution characteristics of the saltation particle of aeolian sediment in bare tillage[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(5):74-77. |
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| Authors: | Li Xiaoli and Shen Xiangdong |
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| Institution: | College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China |
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| Abstract: | The study bases on Agro-Pastoral mixed regions in Inner Mongolia. The study uses DEM6 pocket three cups wind direction and wind velocity anemometer, LV50 pocket anemoscope that can measure instantaneous wind velocity and average wind velocity in any period. The SC-I dust-collector was also used to collect saltation grains. After sieving and weighting the collection grains, the main variable characteristics of wind movement, such as the percentage of sediment at different altitudes and sediment discharges were analyzed. Based on the study, the results on the particle distribution of saltation process in tillage were obtained. By studying the wind erosion characteristics in the region, some foundations were provided for the further research on the wind erosion dynamics characteristics. |
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| Keywords: | wind erosion quantity aeolian sediment bare tillage |
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