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| 长江上游川中紫色土丘陵区小流域泥沙输移比空间尺度效应研究 | |
| 引用本文： | 高旭彪,孙厚才,赵永军,高照良.长江上游川中紫色土丘陵区小流域泥沙输移比空间尺度效应研究[J].水土保持通报,2007,27(6):130-151. |
| 作者姓名： | 高旭彪 孙厚才 赵永军 高照良 |
| 作者单位： | 1. 水利部,水土保持监测中心,北京,100053 2. 长江科学院,水土保持研究所,湖北,武汉,430010 3. 西北农林科技大学,中国科学院,水利部,水土保持研究所,陕西,杨凌,712100 |
| 基金项目： | 中国科学院知识创新工程项目;西北农林科技大学校科研和教改项目;国家自然科学基金 |
| 摘 要： | 应用分形理论空间尺度效应原理，采用137^Cs同位素示踪法测定小流域多年平均侵蚀模数和调查紫色土丘陵区不同小流域多年平均淤积模数的方法，探讨了泥沙输移比与小流域集雨面积的关系，得出了长江上游川中紫色土丘陵区小流域泥沙输移比空间尺度效应泥沙输移比（SDR）统计模型。经验证，该模型可用于估算紫色土丘陵区资料短缺小流域的输移比和产沙量。 |
| 关 键 词： | 分形理论 紫色土 自相似原理 输移比 |
| 文章编号： | 1000-288X（2007）06-0130-04 |
| 收稿时间： | 2007-05-20 |
| 修稿时间： | 2007-10-08 |
Sediment Delivery Ratio and Spatial Scale Effect of Small Watershed in the Hilly Area of Central Sichuan Province |
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| GAO Xu-biao,SUN Hou-cai,ZHAO Yong-jun and GAO Zhao-liang.Sediment Delivery Ratio and Spatial Scale Effect of Small Watershed in the Hilly Area of Central Sichuan Province[J].Bulletin of Soil and Water Conservation,2007,27(6):130-151. | |
| Authors: | GAO Xu-biao SUN Hou-cai ZHAO Yong-jun and GAO Zhao-liang |
| Institution: | Monitoring Centre of Soil and Water Conservation,Ministry of Water Resources,Beijing 100053,China;;Yangtze River Scientific Institute,Wuhan,Hubei 430010,China;;Monitoring Centre of Soil and Water Conservation,Ministry of Water Resources,Beijing 100053,China;;Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Northwest A & University,Shaanxi 712100,China |
| Abstract: | According to the basic principles of fractal theory and spatial scale effect, Cesium- 137 isotope tracer technique was used to measure annually averaged soil erosion modulus of small watershed in the hilly area wit h pu rple soil in Cent ral Sichuan Province.Moreover, annually averaged deposition modulus of differ- ent small watersheds was investigated.The relation of sediment delivery ratio to rainwater collection area of small watershed was discussed.The statistical model of the relation between sediment delivery ratio and spa- tial scale effect !If small watershed was constructed.The model can be used to estimate sediment delivery ra- tio and sediment yield of small data-lacked watershed in the hilly area with pu rple soil. |
| Keywords: | fractal theory purple soil self-similar principle sediment delivery ratio |
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