Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 341797
Title Discharge and sediment measurements at the outlet of a watershed on the Loess plateau of China
Author(s) Elsen, H.G.M. van den; Hessel, R.; Liu Baoyuan, ; Trouwborst, K.O.; Stolte, J.; Ritsema, C.J.; Blijenberg, H.
Source Catena 54 (2003)1-2. - ISSN 0341-8162 - p. 147 - 160.
DOI https://doi.org/10.1016/S0341-8162(03)00062-6
Department(s) Soil Science Centre
Publication type Refereed Article in a scientific journal
Publication year 2003
Abstract A dam and weir system was constructed to measure the discharge of water and sediment from a selected small catchment on the Loess plateau in China. The aim of the system described here was to collect data on discharge and sediment content during occasional summer storms. These data can be used for calibrating and validating the LISEM erosion model. A V-notch weir was selected since it can measure a wide range of discharges. The measurement structure was equipped with an ultrasonic sensor to measure the water level. The system automatically switched on as soon as rain had been detected and the water level data were stored when a certain level threshold was surpassed. As a back-up system a flow meter was used, while a local farmer had also been hired to manually record water level during events. Sediment content of the runoff was determined on samples taken by an automatic sampler and a local farmer took additional samples. The system operated from April 1998 until September 2000. In this period, six events occurred and data could be collected during five of those. The data were corrected to make them useful for comparison with erosion simulation results. The collected data show that runoff only occurs during high-intensity rainstorms that produce more than about 11 mm of rain.
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