| 黄土高原北部神府东胜矿区暴雨过程动态设计 |
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| 引用本文： | 张丽萍,唐克丽.黄土高原北部神府东胜矿区暴雨过程动态设计[J].中国沙漠,2000,20(4):422-425. |
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| 作者姓名： | 张丽萍 唐克丽 |
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| 作者单位： | 1. 浙江大学 环境与资源学院, 浙江 杭州 310029;2. 南京大学 海岸与海岛开发国家试点实验室, 江苏 南京 210093;3. 中国科学院 水土保持研究所, 陕西 杨陵 712100 |
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| 基金项目： | 中国科学院支持课题(961202)和南京大学博士后基金资助.实验室成果编号SCIEL:21100103 |
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| 摘 要： | 应用水文学雨型动态设计原理,根据黄土高原北部神府东胜矿区暴雨特征,分析计算出该地区不同雨强不同重现期的暴雨量,并按照矿区最大1 h、6 h、12 h和24 h暴雨记录,采用不同历时曲线的主雨峰对齐、算术平均、滑动挑选的方法,分析概化出矿区不同时段每年一遇的暴雨历时控制雨型,绝大部分高强度暴雨均属于超前型。应用暴雨动态过程设计方法,可以计算分析无气象、水文测站的每一个小流域的暴雨过程。从而为流域产流汇流、侵蚀量的计算奠定了基础,并使所计算出的流量和侵蚀量更有可用性。
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| 关 键 词： | 小流域 暴雨动态过程 设计预算 概化雨型 |
| 文章编号： | 1000-694X(2000)04-0422-04 |
| 收稿时间： | 1999-11-20 |
| 修稿时间： | 1999年11月20 |
Design of Torrential Rain Process in Shenfu- Dongsheng Coal Mining Area in Northern Loess Plateau |
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| ZHANG Li-ping,TANG Ke-li.Design of Torrential Rain Process in Shenfu- Dongsheng Coal Mining Area in Northern Loess Plateau[J].Journal of Desert Research,2000,20(4):422-425. |
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| Authors: | ZHANG Li-ping TANG Ke-li |
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| Institution: | 1. College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310029, China;2. State Pilot Laboratory of Coast and Island Exploitation, Nanjing University, Nanjing 210093, China;3. Institute of Soil and Water Conservation, Chinese Academy of Sciences an d Ministry of Water Resources, Yang ling 712100, Shaanxi, China |
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| Abstract: | Shenfu-Dongsheng coal mining area is located on northern Loess Plateau,and is in the centre area of rainstorm of the middle reaches of the Yellow River.Soil erosion is very serious.Soil erosion intensity is mainly affected by rainstorm type,lasting time and intensity.In the region,there are not meteorological and hydrologic observation stations in some middle and small drainages,so to design and budget the rainstorm process is very important for us to calculate runoff process and erosion value of these drainages.For above-mentioned purpose,in this paper,according to the principle of hydrology and calculation formula(Htp=I×t=A+BlnN/tn×t),and on the base of characteristics of torrential rain in Shenfu-Dongsheng coal mining area,as well as on hydrologic count handbooks of Dongsheng city and Yuling prefecture(n=0.67~0.83,A=20~30,B=20~35;Average value:n=0.75,A=25,B=28),torrential values were calculated with various rainfall intensity and different reappear cycle of torrential rain.On the basis of the biggest torrential rain records of lasting 1,6,12,24 hours,the types of torrential rain process occurring once time yearly were conceptualized in various lasting rain,adopting the ways of average arithmetic,slide choose and correspondence main peak.According to about 10 years rainfall automation record digital data of ecological experiment base of Luidaoguo drainage in Shenmu county the designed rainstorm process curve were tested and verified.The results showed that lasting 1 and 6 hours rainstorm is the best fit with rate of above 90%,12 hours rainstorm is better fit with rate of about 85%,24 hours rainstorm is poor fit due to various rainfall intensity on curve of rainfall automation record.But the general trend is good fit.In this calculation way,the torrential rain process in the small drainage without observation station of meteorology and hydrology can be inferred.The inferred torrential rain process curve will be the foundation to calculate runoff formation and convergence. |
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| Keywords: | small drainage torrential rain process design and budget conceptualized rain type |
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