TITLE

Modeling of Surface Runoff in Xitiaoxi Catchment, China

AUTHOR(S)
Ligang Xu; Qi Zhang; Hengpeng Li; Viney, Neil R.; Jintao Xu; Jia Liu
PUB. DATE
August 2007
SOURCE
Water Resources Management;Aug2007, Vol. 21 Issue 8, p1313
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Xitiaoxi catchment is one of the most important catchments in the Taihu basin in China. Due to its significant contribution of surface runoff and associated nutrients input to Lake Taihu, understanding of the processes of surface runoff in this catchment is, therefore, of primary importance in quantifying water and nutrient balances for Lake Taihu. The generation of surface runoff in the catchment is mainly controlled by rainfall and land cover, so the variety of surface runoff in Xitiaoxi catchment is seasonal. Moreover, the annual change of surface runoff is distinct. Because of the diversity of land use and variety of hydrological characteristics, numerical simulation of the generation of surface runoff over this catchment is not straightforward. In this paper, attempts were made in applying the Large Scale Catchment Model (LASCAM) to Xitiaoxi catchment. The Xitiaoxi catchment is divided into 47 subcatchments connected via a river network based on topology. The model was first run in an optimization mode to calibrate the parameters against the observed runoff for the period of 1968-1977, and then was run in a prediction mode to try to reproduce the runoff for the next 10 years from 1978 to 1987. The model indicates that saturation excess runoff is probably the dominant process for the catchment. The modeling results indicate that water storage in shallow soils near the stream has a high correlation with daily rainfall, while the water storage changes in deep aquifers demonstrate an annual change trend, showing a rising level for wet seasons and a declining level for dry seasons. The success in modeling surface runoff leads to confidence in modeling nutrients transport as the next step of modeling work.
ACCESSION #
29360421

 

Related Articles

  • Water harvesting II: Working toward being green. Farenga, Stephen J.; Ness, Daniel; Craven, John A. // Science Scope;Mar2008, Vol. 31 Issue 7, p80 

    The article offers information on the significance of water harvesting. According to the author, water harvesting is a process of diverting and collecting of rainwater. The main reason of water harvesting is to lessen the demand on local sources of water. The aim of water harvesting is to...

  • Geostatistical modeling of spatial variability of water retention curves. Saito, H.; Seki, K.; Şimůnek, J. // Hydrology & Earth System Sciences Discussions;2008, Vol. 5 Issue 4, p2491 

    This study compares the performance of two geostatistical approaches, parametric and non-parametric, to evaluate the spatial distribution of water retention curves. Data used in this study were obtained from the Las Cruces trench site database that contains water retention data for 448 soil...

  • Rainwater Harvesting Using Khatri in Himachal Pradesh: A Viable Technique for Water Conservation. Kanwar, Promila; Sharma, Neetu // Asian Agri-History;Apr-Jun2012, Vol. 16 Issue 2, p205 

    The article discusses traditional methods of water conservation used in the state of Himachai Pradesh, India as a way of guaranteeing water supply against problems such as water degradation, water scarcity, and government mismanagement of water supplies. It focuses on rainwater harvesting using...

  • Rainwater Harvesting. Goldberg, Steve // Water Efficiency;Jul/Aug2013, Vol. 8 Issue 5, p50 

    The article discusses the challenges associated with rainwater harvesting. It mentions that rainwater harvesting is important and beneficial since it offers a free source of water. According to the author, many people harvest rainwater since it could reduce the load on stormwater systems and...

  • WATER CONSERVATION. STONE, ANITA B. // Countryside & Small Stock Journal;Jul/Aug2014, Vol. 98 Issue 4, p50 

    The article discusses and offers tips for water conservation and irrigation. Topics covered includes deep watering, and irrigation methods such as in-ground drip system, soaker hose and the long tubular hose with spikes. It mentions rain barrels, water run-off, and alternative conservation...

  • It's 'raining' opportunity. Feldman, William // Landscape Management;Feb2008, Vol. 47 Issue 2, p83 

    This article describes an automated rainwater recovery system that collects the water and distributes it. Such systems usually consist of the traditional eave gutters and drain spouts to transport water from roofs to a storage reservoir or underground cistern to hold the water until needed....

  • Rain to Recreation: Recasting Stormwater Runoff as a Water Resource Asset. Baker, Donald W.; Beezhold, Michael L. // WaterWorld;Dec2007 Supplement, p8 

    The article reports on the moves initiated by the civic leaders in Lenexa, Kansas to address the stormwater runoff problem in the area. The group reportedly turned the problem into a community asset by introducing a successful stormwater management program such as the Rain to Recreation Program....

  • Rain Barrels. B. J. // YES! Magazine;Spring2008, Issue 45, p63 

    The article discusses the significance of rain barrels during the scarcity of water in the U.S. As water get scarce, it is suggested that people should learn how to collect rainwater because it can be used in watering the garden and scrubbing the floor. Such a process, helps decrease water...

  • Assessing and Mitigating the Hydrological Impacts of Urbanisation in Semi-Urban Catchments Using the Storm Water Management Model. Aryal, S.; Ashbolt, S.; McIntosh, B.; Petrone, K.; Maheepala, S.; Chowdhury, R.; Gardener, T.; Gardiner, R. // Water Resources Management;Nov2016, Vol. 30 Issue 14, p5437 

    Urbanisation causes a range of adverse impacts on stream physical and ecological conditions due to increases in catchment runoff caused by increased imperviousness. Developing ways to reduce these impacts on in-stream ecosystems is a major challenge and requires innovative catchment specific,...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics