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XVII th World Congress of the International Commission of Agricultural and Biosystems Engineering (CIGR) MODELLING THE GROUNDWATER DYNAMICS AS INFLUENCED BY WATER MANAGEMENT IN HETAO IRRIGATION DISTRICT, UPPER YELLOW RIVER BASIN, AND PREDICTING IMPACTS OF
BibTeX
@MISC{Xu_xviith,
author = {X U Xu and Guanhua Huang and Zhongyi Qu and Luis S Pereira},
title = {XVII th World Congress of the International Commission of Agricultural and Biosystems Engineering (CIGR) MODELLING THE GROUNDWATER DYNAMICS AS INFLUENCED BY WATER MANAGEMENT IN HETAO IRRIGATION DISTRICT, UPPER YELLOW RIVER BASIN, AND PREDICTING IMPACTS OF},
year = {}
}
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Abstract
ABSTRACT The upstream irrigation districts of the Yellow River basin are the highly productive agricultural area in North China. Due to the severe water scarcity, application of water-saving practices at both farm and district level is required for the sustainable agricultural development. An integrated methodology was developed on the basis of loose coupling the groundwater flow model (MODFLOW) and ArcInfo Geographic Information System to assess the impacts of irrigation water-saving practices and groundwater abstraction on the groundwater dynamics of the Jiefangzha Irrigation System in Hetao Irrigation District, upper Yellow River basin. The model was calibrated and validated with datasets of years 2004 and 2005, respectively. The model and corresponding methodology were then used to simulate the groundwater dynamics of the study area for various water-saving practices considering the groundwater abstraction foreseen for the year of 2020. Results showed that water-saving practices with 60% of canal lining and upgrading hydraulic structures, and upgraded irrigation technology in 50% of the area are feasible and it is a reasonable solution. Their implementation would reduce groundwater evaporation by 37 mm and the total diversions from the Yellow River by 208 mm.
