| 人工降雨条件下东北典型黑土侵蚀因子K值研究 |
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| 引用本文： | 石晨,郭成久,卢明春. 人工降雨条件下东北典型黑土侵蚀因子K值研究[J]. 现代农业科学, 2009, 0(2): 27-29 |
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| 作者姓名： | 石晨 郭成久 卢明春 |
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| 作者单位： | [1]沈阳农业大学,辽宁沈阳110161 [2]辽宁省汤河水库管理局,辽宁辽阳111007 |
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| 摘 要： | 运用人工降雨观测资料,研究了中国东北地区典型黑土的土壤可蚀性值问题。研究结果表明：5min、l0min、15min、20min内最大降雨强度和降雨动能的乘积与土壤侵蚀量之间有良好的线性关系。经回归分析后发现,5min最大降雨强度和降雨动能乘积于土壤侵蚀值间相关系数最大,达到0.8170。依据这一研究结果,综合多次模拟降雨过程得出中国东北地区典型黑土可蚀性K值为0.0371。
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| 关 键 词： | 东北典型黑土 土壤侵蚀因子K 人工模拟降雨 |
Study on Soil Erodibility of Typical Black Soil in the Region of Northeast China under Rainfall Simulator |
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| Affiliation: | SHI Chen, GUO Cheng-jiu, LU Ming-chun (1.Shenyang Agricultural University, Shenyang, Liaoning 110161, China; 2. Yanghe Reservoir Administration, Liaoyang, Liaoning 111007, China) |
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| Abstract: | A study was carried out on the issue of soil erodibility values of typical black soil in black soil region of Northeast regions in China. Results show that the product of the largest intensity and kinetic energy of rain have a good linear correlation with soil-erosion loss in 5min, 10min, 15min and 20min. Through the regression analogy, we found that the correlation factor was best in 5min, attained 0.871. Based on these results and large amount experiment date, we got that the soil erodibility values of typical black soil in black soil region of Northeast regions was 0.037 1 in China. |
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| Keywords: | typical black soil of Northeast regions in China soil-erosion factor K rainfall simulator |
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