| RELATIONSHIP OF SEDIMENT PRODUCTION BETWEEN HILLSLOPE AND GULLY SLOPE IN A SMALL BASIN IN THE BILLY LOESS REGION, NORTH CHINA |
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| 作者姓名： | CAI Qiangguo Institute of Geography Chinese Academy of Sciences Beijing China |
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| 作者单位： | CAI Qiangguo Institute of Geography，Chinese Academy of Sciences，Beijing 100101，China |
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| 基金项目： | the National Natural Science Foundation of China |
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| 摘 要： | SomepeOPlehaverecognizedtheSPatialvariationoflandionnsandgeomorphicPeainthehillyloessregion,NOIthClam(Chenetal.1988).SuchvariationshaVe~linkedtotheverticalzonationofsoilerosionandsedimentproduedoninthisarea(Catetat.1994).HoWeVer,noneOftheStlldiesaPProachtheProbleminaqUantitativemanner.NorweretherelationsbetweensoilerosionPr~sontheoneban4andhydrologicandghgogicalcharacteristicsofthevariouSslopezonesontheother,dearlyestatiIisned.Inaaamon,~stubbesintheareahaveprtridtahotoshowthe~rtanceo…
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RELATIONSHIP OF SEDIMENT PRODUCTION BETWEEN HILLSLOPE AND GULLY SLOPE IN A SMALL BASIN IN THE BILLY LOESS REGION, NORTH CHINA |
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| CAI Qiangguo Institute of Geography,Chinese Academy of Sciences,Beijing ,China.RELATIONSHIP OF SEDIMENT PRODUCTION BETWEEN HILLSLOPE AND GULLY SLOPE IN A SMALL BASIN IN THE BILLY LOESS REGION, NORTH CHINA[J].International Journal of Sediment Research,1997(3). |
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| Authors: | CAI Qiangguo Institute of Geography Chinese Academy of Sciences Beijing China |
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| Institution: | CAI Qiangguo Institute of Geography,Chinese Academy of Sciences,Beijing 100101,China |
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| Abstract: | In the hilly loess region, due to variation in geomorphological characteristics and to a lesser extent differences in soil characteristics, the relative significance of erosion processes and subprocesses varies with slope zone(upper hillslope, middle hillslope, lower hillslope, gully slope). Thus empirical relations established as well as parameters selected in these relations vary with slope zone. In addition, contributions of runoff and sediment from the hillslope have a significant effect on the gully slope. Data available show that if appropriate soil conservation measures are established to prevent the input of runoff, then the contribution of runoff and sediment by gully slope will be reduced by 29% and 64% respectively during an average storm, and by 61% and 84% respectively during the maximum storm. |
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| Keywords: | The hilly loess region Runoff Sediment production The vertical zonation |
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