摘要
根据塔里木河下游断流区域含水层水文地质特征及其实际输水过程中河水对浅层地下水的补给规律 ,建立了塔里木河下游绿色走廊生态输水河道附近区域地下水运动的一维非稳定流模型 ,并通过在整个输水过程中流量与水位两种边界条件相互转换的一种方法求解模型。最后应用上述模型分析了间歇性输水条件下塔里木河下游断流河段河道两侧地下水位恢复状况 ,为输水生态效益的定量评价及其今后输水工作的决策提供理论基础。
Tarim River is the longest continental river in China, and is essential to the oases in the watershed and of the 'Green Corridor' in its lower reaches. The Tarim River watershed is characterized by the arid climate and the vulnerable ecological environment. This paper develops the models of one-dimensional unsteady current of groundwater movement in the vicinities along the river channel of stream water transportation for the 'Green Corridor' in the lower reaches of Tarim River based on the hydrogeologic conditions of the aquifer and the practical recharge to the shallow groundwater during the stream water transportation to the stream water cut-off river section at the lower reaches of Tarim River. The models are solved by transforming the boundary conditions of both discharge of stream flow and the groundwater level during the stream water transportation. The status of the groundwater rising is analyzed by using the models under the intermittent stream water transportation to the stream flow cut-off river section at the lower reaches of Tarim River. The results can provide the theoretical bases for the quantitative evaluation of the ecological benefits and the policy-making of the stream water transportation to the lower reaches of Tarim River.
出处
《干旱区地理》
CSCD
北大核心
2003年第2期129-135,共7页
Arid Land Geography
关键词
塔里木河
生态输水
河道
地下水
运动规律
补给规律
间歇性输水
生态效益
stream flow cut-off river section
Tarim River
inter mittent stream water transportation
groundwater movement
groundwater level
