| RESPONSE OF SEDIMENT YIELD TO BASIN CHARACTERISTICS IN THE MIDDLE YELLOW RIVER BASIN |
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| 引用本文： | Jinfa LU,Xiuhua HUANG. RESPONSE OF SEDIMENT YIELD TO BASIN CHARACTERISTICS IN THE MIDDLE YELLOW RIVER BASIN[J]. 国际泥沙研究, 2003, 0(2) |
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| 作者姓名： | Jinfa LU Xiuhua HUANG |
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| 作者单位： | Institute of Geographical Sciences and Natural Resources，Chinese Academy of Sciences (CAS)，Institute of Remote Sensing Application，Chinese Academy of Sciences (CAS) 100101 Beijing，100101 Beijing |
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| 摘 要： | 1 INTRODUCTION The Middle Yellow River Basin of China is well-known worldwide for its severe soil erosion. The basin extends across arid and desert steppe, semi-arid steppe, and warmly temperate semi-humid forest-steppe from north to south, and morphological characteristics consist of mountains alternating with inter-mountain basins. Landforms change frequently from rocky mountains through rock-loess mixed mountains or hills to loess gullied hills and loess tableland from mountain to bas…
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RESPONSE OF SEDIMENT YIELD TO BASIN CHARACTERISTICS IN THE MIDDLE YELLOW RIVER BASIN |
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| Jinfa LU and Xiuhua HUANG Institute of Geographical Sciences and Natural Resources,Chinese Academy of Sciences. RESPONSE OF SEDIMENT YIELD TO BASIN CHARACTERISTICS IN THE MIDDLE YELLOW RIVER BASIN[J]. International Journal of Sediment Research, 2003, 0(2) |
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| Authors: | Jinfa LU Xiuhua HUANG Institute of Geographical Sciences Natural Resources Chinese Academy of Sciences |
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| Affiliation: | Jinfa LU 1 and Xiuhua HUANG 2 1 Institute of Geographical Sciences and Natural Resources,Chinese Academy of Sciences |
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| Abstract: | More than 50 river basins with gauging stations were chosen for study on relations between sediment yield and basin characteristics in the Middle Yellow River Basin of China. With drainage areas ranging from 500 to 2,500 km2, these basins can be categorized into 7 types with different physiographical backgrounds. A bulk set of data on sediment yield and basin characteristics, such as surface material, vegetation cover, and morphological features, were collected using remote sensing combined with field investigation. Based on these data, a statistical technique was used to comprehensively analyze the response of sediment yield to basin characteristics. The results show that the best correlation occurs between specific sediment yield and surface material, followed subsequently by vegetation cover and drainage density. Precipitation has a minor influence on sediment yield compared with the former three factors. Due to heavy disturbance of vegetation coverage, surface material, and morphological development, single characteristic relations could not adequately describe specific sediment yield. Thus, a multiple-characteristic relation was developed between specific sediment yield and basin characteristics. Morphological features and rainfall could exert an important influence on sediment production of the river basins only when vegetation and surface material are homogenous. |
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| Keywords: | Sediment yield Basin characteristics Middle Yellow River Basin |
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