| 不同植被对土壤侵蚀及铜元素流失的影响 |
| 罗文林; 张兴昌; 尹勤瑞; 孟杰
|
| 2008
|
| 发表期刊 | 水土保持学报
 |
| 期号 | 3页码:10-13,23 |
| 摘要 | 通过野外天然降雨产流及人工模拟降雨试验,研究不同植被对坡面土壤侵蚀及土壤铜元素流失的影响及降雨过程中铜元素的流失规律。结果表明:(1)紫花苜蓿、绿豆、荒草3种植被覆盖小区的年径流量为5183.8,5 366.2,3 867.3 m~3/km~2,比裸地减少33%,30.8%和50.1%;侵蚀模数为379.18.482.3,15.78 t/km~2,比裸地减少34.7%,16.4%和97.2%;全年全铜流失量为12.9,25.5,0.46 kg/km~2,有效铜流失量为6.22,11.01,0.15 kg/ km~2,分别比裸地减少67.3%,35.3%,98.8%和54.6%,19.6%,98.9%;(2)在模拟降雨过程中,农地小区的产流产沙强度过程呈现波动上升趋势,产沙过程波动较产流过程剧烈。铜元素流失强度过程与产流产沙强度过程相似,但其峰值多于产流产沙过程,且最高峰出现时间不同。有效铜流失强度变化率略高于全铜。 |
| 其他摘要 | The soil erosion and copper loss by erosion as affected by different vegetation was conducted in field runoff and simulated rainfall conditions.The results showed that the mean runoff amounts of alfalfa,mung bean,wilderness meadow were of 5 183.8,5 366.2,3 867.3 m~3/km~2·a respectively,which were 33%, 30.8% and 50.1% lower than bare land.Their erosion modules were 379.18,482.3,15.78 t/km~2·a, which were 34.7%,16.4% and 97.2% lower respectively than the bare land respectively.Theirmean loss a- mounts of tota... |
| 语种 | 中文
|
| 文献类型 | 期刊论文
|
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/581
|
| 专题 | 水保所知识产出(1956---)
|
推荐引用方式
GB/T 7714 |
罗文林,张兴昌,尹勤瑞,等. 不同植被对土壤侵蚀及铜元素流失的影响[J]. 水土保持学报,2008(3):10-13,23.
|
| APA |
罗文林,张兴昌,尹勤瑞,&孟杰.(2008).不同植被对土壤侵蚀及铜元素流失的影响.水土保持学报(3),10-13,23.
|
| MLA |
罗文林,et al."不同植被对土壤侵蚀及铜元素流失的影响".水土保持学报 .3(2008):10-13,23.
|
修改评论