Ridge and contour tillage effects on soil erosion from steep hillslopes in the Sichuan Basin, China
文献类型：期刊论文
| 作者 | J.H. Zhang ; M. Frielinghaus; G. Tian; D.A. Lobb
|
| 刊名 | Journal of Soil and Water Conservation
 |
| 出版日期 | 2004 |
| 卷号 | 59期号:6页码:277-284 |
| 关键词 | Hoeing tillage Sichuan Basin soil translocation tiered ridge tillage erosion |
| ISSN号 | 0022-4561 |
| 通讯作者 | J.H. Zhang |
| 合作状况 | 国际 |
| 英文摘要 | Little is known about the impact of tillage methods on soil movement resulting from hoeing tillage operations in the Sichuan Basin, China. Effects of tiered ridge and contour tillage on soil movement (translocation and erosion) were examined in the steep hillslopes of this basin using a physical tracer method. Stone chips were used as tracers, having a contrasting color from the surrounding soil, and were incorporated into each experimental plot. Net mean downslope displacement distance by contour tillage was much shorter (P<0.0001) than that by downslope tillage (5 times for tiered ridge tillage, 3 times for flat tillage). Soil displacement distance was positively correlated to slope gradient for downslope tillage (R2 = 0.6303 – 0.8282, P = 0.0002 – <0.0001), whereas slope gradient was not significantly correlated to soil downslope displacement by contour tillage (R2 = 0.2421-0.3142, P = 0.0529-0.0239). Tillage transport coefficients were 25.5 and 30.7 kg m−1 tillage pass−1 for k3-values and 153.0 and 141.3 kg m−1 tillage pass−1 for k4-values, respectively for downslope ridge and downslope flat tillage. For a typical downslope length of 15 m and two tillages per year, tillage erosion rates by downslope tillage reached 42.0 - 129.1 t ha−1 yr−1 and 49.0 - 122.1 t ha−1 yr−1 for slopes ranging from 0.04-0.47 m m−1 and from 0.04-0.43 m m−1 respectively for downslope ridge and downslope flat tillage. Tillage erosion rates by contour tillage were reduced by 84% and 77%, compared to downslope tillage respectively for ridge and flat treatments. No significant differences in soil translocation and erosion rates existed between downslope ridge and downslope flat tillage. Contour ridge tillage was more effective than contour flat tillage with respect to controlling tillage translocation and erosion. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225670500012 |
| 公开日期 | 2010-11-22 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2594]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 推荐引用方式 GB/T 7714 | J.H. Zhang,M. Frielinghaus,G. Tian,et al. Ridge and contour tillage effects on soil erosion from steep hillslopes in the Sichuan Basin, China[J]. Journal of Soil and Water Conservation,2004,59(6):277-284. |
| APA | J.H. Zhang,M. Frielinghaus,G. Tian,&D.A. Lobb.(2004).Ridge and contour tillage effects on soil erosion from steep hillslopes in the Sichuan Basin, China.Journal of Soil and Water Conservation,59(6),277-284. |
| MLA | J.H. Zhang,et al."Ridge and contour tillage effects on soil erosion from steep hillslopes in the Sichuan Basin, China".Journal of Soil and Water Conservation 59.6(2004):277-284. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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