Effects of terracing and agroforestry on soil and water loss in hilly areas of the Sichuan Basin, China.
文献类型：期刊论文
| 作者 | J. H. Zhang（张建辉） ; Z. A. Su（苏正安）; G. C. Liu（刘刚才）
|
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2008 |
| 卷号 | 5期号:3页码:241-248 |
| 关键词 | Agroforestry |
| ISSN号 | 1672-6316 |
| 通讯作者 | J. H. Zhang |
| 合作状况 | 其它 |
| 英文摘要 | Soil erosion in hilly areas of the Sichuan Basin is a serious concern over sustainable crop production and sound ecosystem. A 3-year experiment was conducted using the method of runoff plots to examine the effects of terracing and agroforestry in farmland systems on soil and water conservation of slope fields in the hilly areas in Jianyang County, Sichuan Province, Southwestern China. A power function (Y = aX b) can statistically describe the relationship between water runoff (Y) and rainfall (X). The regression equation for the treatment of sloping terraces with crops (Plot 2) is remarkably different from that for the treatment of sloping terraces with grasses and trees (Plot 1) and the conventional up-and down-slope crop system (Plot 3) regarding equation coefficients, while regression equations are similar between Plot 1 and Plot 3. Water runoff amount and runoff coefficient of slope fields increased by 21.5∼41.0 % and 27.5 ∼ 69.7 % respectively, compared to those of sloping terraces, suggesting that terracing notably reduced the water runoff in the field. In the case of sloping terraces, lower amount of water runoff was observed on sloping terraces with crops than on sloping terraces with grasses and trees. Sediment yields on the slope fields in the normal year of rainfall distribution were notably higher (34.41 ∼ 331.67 % and 37.06 ∼ 403.44 % for Plot 1 and Plot 2, respectively) than those on sloping terraces, implying that terracing also plays a significant role in the reduction in soil erosion. It is suggested that terracing with crops is significantly effective for soil and water conservation in cultivated farmland, while the conventional practice of up-and down-slope cultivation creates high rates of water runoff and soil sediment transport. Terracing with grasses and fruit trees shows a less reduction in water runoff than terracing with crops, which was observed in the 3-year experiments. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258848900006 |
| 公开日期 | 2010-11-05 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2443]  |
| 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,Z. A. Su,G. C. Liu. Effects of terracing and agroforestry on soil and water loss in hilly areas of the Sichuan Basin, China.[J]. Journal of Mountain Science,2008,5(3):241-248. |
| APA | J. H. Zhang,Z. A. Su,&G. C. Liu.(2008).Effects of terracing and agroforestry on soil and water loss in hilly areas of the Sichuan Basin, China..Journal of Mountain Science,5(3),241-248. |
| MLA | J. H. Zhang,et al."Effects of terracing and agroforestry on soil and water loss in hilly areas of the Sichuan Basin, China.".Journal of Mountain Science 5.3(2008):241-248. |
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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