毛乌素沙地南缘降水入渗滞后补给与模型参数敏感性分析
|
摘要
[目的]研究陕北毛乌素沙地南缘降水入渗滞后补给与数值模型参数敏感性,为该地区地下水资源合理开发利用与生态环境保护提供科学依据。[方法]基于原位监测数据分析降水入渗滞后补给现象,采用输入输出变化率(ROV)分析数值模型参数敏感性。[结果]小雨型的降水包气带响应深度为3～10 cm,中雨型为30～60 cm,大雨型为60～90 cm,暴雨型均大于90 cm,地下水补给滞后时间约4～11 h。参数敏感性分析表明,底部通量对于饱和含水率最为敏感。[结论]入渗响应深度与降水量线性相关,降水补给滞后时间与饱和含水率显著正相关。
[Objective] The lagging infiltration recharge in south margin of Mu Us sandy land and parameter sensitivity of numerical model were studied in order to provide scientific basis for rational exploitation and utilization of groundwater resources and protection of ecological environment in this area. [Methods] Lagging infiltration recharge was analyzed based on field monitoring data, and sensitivity analysis of numerical model parameters was conducted using ratio of variation(ROV). [Results] The response depth of water content to the precipitation was 3～10 cm in small rain scenario, and 30～60 cm, 60～90 cm, more than 90 cm in middle, heavy and storm rain scenarios. The groundwater recharge was approximately 4～11 h lagged. Sensitivity analysis showed that saturated water content(θ_s) was the most sensitive parameter to the bottom flux. [Conclusion] The response depth of water content are linearly correlated with the precipitation and the groundwater recharge lag time has a positive correlation with θ_s.
[Objective] The lagging infiltration recharge in south margin of Mu Us sandy land and parameter sensitivity of numerical model were studied in order to provide scientific basis for rational exploitation and utilization of groundwater resources and protection of ecological environment in this area. [Methods] Lagging infiltration recharge was analyzed based on field monitoring data, and sensitivity analysis of numerical model parameters was conducted using ratio of variation(ROV). [Results] The response depth of water content to the precipitation was 3～10 cm in small rain scenario, and 30～60 cm, 60～90 cm, more than 90 cm in middle, heavy and storm rain scenarios. The groundwater recharge was approximately 4～11 h lagged. Sensitivity analysis showed that saturated water content(θ_s) was the most sensitive parameter to the bottom flux. [Conclusion] The response depth of water content are linearly correlated with the precipitation and the groundwater recharge lag time has a positive correlation with θ_s.
引文
[1] Yang Zeyuan,Wang Wenke,Wang Zhao,et al.Ecology-oriented groundwater resource assessment in the Tuwei River watershed,Shaanxi Province,China[J].Hydrogeology Journal,2016,24(8):1-14.
[2] Graf R,Przybylek J.Estimation of shallow groundwater recharge using a GIS-based distributed water balance model[J].Quaestiones Geographicae,2014,33(3):27-37.
[3] Gebreyohannes T,Smedt F D,Walraevens K,et al.Application of a spatially distributed water balance model for assessing surface water and groundwater resources in the Geba basin,Tigray,Ethiopia[J].Journal of Hydrology,2013,499(3):110-123.
[4] Ibrahim M,Favreau G,Scanlon B R,et al.Long-term increase in diffuse groundwater recharge following expansion of rainfed cultivation in the Sahel,West Africa[J].Hydrogeology Journal,2014,22(6):1293-1305.
[5] Liu Xinping,He Yuhui,Zhang Tonghui,et al.The response of infiltration depth,evaporation,and soil water replenishment to rainfall in mobile dunes in the Horqin Sandy Land,Northern China[J].Environmental Earth Sciences,2015,73(12):8699-8708.
[6] Dafny E,?imunek J.Infiltration in layered loessial deposits:Revised numerical simulations and recharge assessment[J].Journal of Hydrology,2016,538:339-354.
[7] 许登科,杨泽元,郑志伟,等.陕北风沙草滩区包气带含水率、地下水埋深与降雨量的关系研究[J].灌溉排水学报,2017,36(1):22-28.
[8] Daly E,Porporato A.A review of soil moisture dynamics:From rainfall infiltration to ecosystem response[J].Environmental Engineering Science,2005,22(1):9-24.
[9] Philip J R.The theory of infiltration(4):Sorptivity and algebraic infiltration equations[J].Soil Science,1957,84(3):257-264.
[10] Philip J R.Theory of infiltration[J].Advances in Hydroscience,1969,5(5):215-296.
[11] Warrick A W,Broadbridge P.Sorptivity and macroscopic capillary length relationships[J].Water Resources Research,1992,28(2):427-431.
[12] Philip J R.Effect of root water extraction on wetted regions from continuous irrigation sources[J].Irrigation Science,1997,17(3):127-135.
[13] ?imunek J,van Genuchten M T,?ejna M.Recent developments and applications of the HYDRUS computer software packages[J].Vadose Zone Journal,2016,15(7):1-25.
[14] Grinevskiy S O,Pozdniakov S P.The Use of HYDRUS-1D for Groundwater Recharge Estimation in Boreal Environments[C]//International Conference “Hydrus Software Applications To Subsurface Flow and Contaminant Transport Problems”,2013.
[15] Cheviron B,Coquet Y.Sensitivity analysis of transient-MIM HYDRUS-1D:Case study related to pesticide fate in soils[J].Vadose Zone Journal,2009,8(4):1064-1079.
[16] 张建山,仵彦卿,李哲.陕北沙漠滩区降水入渗与凝结水补给机理试验研究[J].水土保持学报,2005,19(5):124-126.
[17] ?imunek J,Th M,Martinus T,et al.HYDRUS:Model use,calibration,and validation[J].Transactions of the Asabe,2012,55(4):1561-1574.
[18] 中国气象局.GB/T28592-2012降雨量等级[S].北京:中国标准出版社,2012.
[19] Qi Peng,Zhang Guangxin,Xu Yijun,et al.Assessing the influence of precipitation on shallow groundwater table response using a combination of singular value decomposition and cross-wavelet approaches[J].Water,2018,10(5):598.
[20] Scanlon B R,Reedy R C,Stonestrom D A,et al.Impact of land use and land cover change on groundwater recharge and quality in the southwestern US[J].Global Change Biology,2010,11(10):1577-1593.
[21] 邵明安,王全九,黄明斌.土壤物理学[M].北京:高等教育出版社,2006.
[22] Huang Jinting,Zhou Yangxiao,Hou Rongze,et al.Simulation of water use dynamics by salix bush in a semiarid shallow groundwater area of the Chinese Erdos Plateau[J].Water,2015,7(12):6999-7021.
[23] Liang W L,Kosugi K I,Mizuyama T.A three-dimensional model of the effect of stemflow on soil water dynamics around a tree on a hillslope[J].Journal of Hydrology,2009,366(1/4):62-75.
[2] Graf R,Przybylek J.Estimation of shallow groundwater recharge using a GIS-based distributed water balance model[J].Quaestiones Geographicae,2014,33(3):27-37.
[3] Gebreyohannes T,Smedt F D,Walraevens K,et al.Application of a spatially distributed water balance model for assessing surface water and groundwater resources in the Geba basin,Tigray,Ethiopia[J].Journal of Hydrology,2013,499(3):110-123.
[4] Ibrahim M,Favreau G,Scanlon B R,et al.Long-term increase in diffuse groundwater recharge following expansion of rainfed cultivation in the Sahel,West Africa[J].Hydrogeology Journal,2014,22(6):1293-1305.
[5] Liu Xinping,He Yuhui,Zhang Tonghui,et al.The response of infiltration depth,evaporation,and soil water replenishment to rainfall in mobile dunes in the Horqin Sandy Land,Northern China[J].Environmental Earth Sciences,2015,73(12):8699-8708.
[6] Dafny E,?imunek J.Infiltration in layered loessial deposits:Revised numerical simulations and recharge assessment[J].Journal of Hydrology,2016,538:339-354.
[7] 许登科,杨泽元,郑志伟,等.陕北风沙草滩区包气带含水率、地下水埋深与降雨量的关系研究[J].灌溉排水学报,2017,36(1):22-28.
[8] Daly E,Porporato A.A review of soil moisture dynamics:From rainfall infiltration to ecosystem response[J].Environmental Engineering Science,2005,22(1):9-24.
[9] Philip J R.The theory of infiltration(4):Sorptivity and algebraic infiltration equations[J].Soil Science,1957,84(3):257-264.
[10] Philip J R.Theory of infiltration[J].Advances in Hydroscience,1969,5(5):215-296.
[11] Warrick A W,Broadbridge P.Sorptivity and macroscopic capillary length relationships[J].Water Resources Research,1992,28(2):427-431.
[12] Philip J R.Effect of root water extraction on wetted regions from continuous irrigation sources[J].Irrigation Science,1997,17(3):127-135.
[13] ?imunek J,van Genuchten M T,?ejna M.Recent developments and applications of the HYDRUS computer software packages[J].Vadose Zone Journal,2016,15(7):1-25.
[14] Grinevskiy S O,Pozdniakov S P.The Use of HYDRUS-1D for Groundwater Recharge Estimation in Boreal Environments[C]//International Conference “Hydrus Software Applications To Subsurface Flow and Contaminant Transport Problems”,2013.
[15] Cheviron B,Coquet Y.Sensitivity analysis of transient-MIM HYDRUS-1D:Case study related to pesticide fate in soils[J].Vadose Zone Journal,2009,8(4):1064-1079.
[16] 张建山,仵彦卿,李哲.陕北沙漠滩区降水入渗与凝结水补给机理试验研究[J].水土保持学报,2005,19(5):124-126.
[17] ?imunek J,Th M,Martinus T,et al.HYDRUS:Model use,calibration,and validation[J].Transactions of the Asabe,2012,55(4):1561-1574.
[18] 中国气象局.GB/T28592-2012降雨量等级[S].北京:中国标准出版社,2012.
[19] Qi Peng,Zhang Guangxin,Xu Yijun,et al.Assessing the influence of precipitation on shallow groundwater table response using a combination of singular value decomposition and cross-wavelet approaches[J].Water,2018,10(5):598.
[20] Scanlon B R,Reedy R C,Stonestrom D A,et al.Impact of land use and land cover change on groundwater recharge and quality in the southwestern US[J].Global Change Biology,2010,11(10):1577-1593.
[21] 邵明安,王全九,黄明斌.土壤物理学[M].北京:高等教育出版社,2006.
[22] Huang Jinting,Zhou Yangxiao,Hou Rongze,et al.Simulation of water use dynamics by salix bush in a semiarid shallow groundwater area of the Chinese Erdos Plateau[J].Water,2015,7(12):6999-7021.
[23] Liang W L,Kosugi K I,Mizuyama T.A three-dimensional model of the effect of stemflow on soil water dynamics around a tree on a hillslope[J].Journal of Hydrology,2009,366(1/4):62-75.