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首页> 外文会议>Effective Utilization of Agricultural Soil amp; Water Resources and Protection of Environment >Rethinking Conjunctive Use of Surface and Groundwater in Liuyuankou Irrigation System
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Rethinking Conjunctive Use of Surface and Groundwater in Liuyuankou Irrigation System

机译：对六元口灌溉系统地表与地下水联合利用的再思考。

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Conjunctive use of surface and groundwater has proved to be effective in many arid and semi arid irrigation areas.In Liuyuankou Irrigation System (LIS),most of surface water diverted from the Yellow River is used for rice irrigation in the upstream area,which causes shallow groundwater tables.Surface water and lateral groundwater flow recharges downstream aquifers,and groundwater is pumped for dry land crops.Soil salinisation resulting from shallow groundwater tables in the upstream and increasing groundwater depth in the downstream area threaten the environmental sustainability and economic feasibility of agricultural production.This paper describes modeling tools to develop and implement water saving and sustainable irrigation options for the LIS.Modeling analysis shows that using pumped groundwater in the upstream area is an effective way to increase groundwater depth and thus reduces phreatic evapotranspiration losses,and shifting saved surface water to the downstream area can prevent deep groundwater tables in this area.By the proposed innovate strategies of conjunctive use,real water savings and sustainable development can be achieved.
机译：在许多干旱和半干旱灌溉地区，地表水和地下水的联合利用已被证明是有效的。在流元口灌溉系统（LIS）中，从黄河引出的大部分地表水在上游地区用于水稻灌溉，导致浅层灌溉。地下水位。地表水和横向地下水流向下游含水层补给水，并将地下水泵入旱地作物。上游浅层地下水位和下游地区地下水深度增加导致土壤盐渍化，威胁到环境可持续性和农业生产的经济可行性本文介绍了用于开发和实施LIS节水和可持续灌溉方案的建模工具。建模分析表明，在上游地区使用抽水地下水是增加地下水深度，从而减少潜水蒸发蒸腾损失和转移节省的地表的有效途径可以向下游地区供水通过提议的联合使用创新策略，可以实现实际节水和可持续发展。

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