人民黄河2024，Vol.46Issue(4)：23-31,9.DOI:10.3969/j.issn.1000-1379.2024.04.004
黄土高原SRC参数的空间物理释义与流量估算应用
Spatial Physics Interpretation and Estimation Application of the Parameters of SRC in the Loess Plateau
摘要
Abstract
Located in northwest China's arid region,the Loess Plateau features great spatial diversity,high evaporation,little rainfall,and a deep unsaturated zone.The complex evolutionary mechanism of regional river runoff is influenced by the interplay of several elements.These factors have a big impact on achieving high-quality development and protecting the environment in the region.The Streamflow Recession Curve(SRC)'s characteristic parameters were analyzed spatially in ten typical watersheds from a variety of Loess Plateau biological zones.The objective was to look into the SRC parameter distribution patterns and offer a physical interpretation of these parameters in the area.Fur-thermore,using information from the GRACE gravity satellite,the study produced a preliminary estimate of the flow at the basin outflow and built a regional response relationship between the flow at the basin outlet and land water storage based on the SRC.The studies reveal a high degree of stability for the SRC parameters α and β in the same ecological zone.At a particular geographical location,there is an increase in β when latitude lowers and longitude increases.It also has a negative correlation with the watershed's drought index and a positive correlation with the average slope.The variable α shows an inverse relationship with the hydraulic conductivity attenuation parameter and a direct associ-ation with soil porosity.Finally,a power function can be used to estimate the relationship between the amount of water held on land and the a-mount of runoff from rivers in the Loess Plateau watershed.Additionally,it offers a method for reversing the basin flow process that is created especially for the analysis of steady GRACE data.关键词
SRC/特征参数/空间分布/影响因素/GRACE/黄土高原Key words
streamflow recession curve/characteristic parameters/spatial distribution/influencing factors/GRACE/Loess Plateau分类
建筑与水利引用本文复制引用
薛超伟,张洪波,冶兆霞,张雨柔,杨志芳,赵孝威,李同方..黄土高原SRC参数的空间物理释义与流量估算应用[J].人民黄河,2024,46(4):23-31,9.基金项目
国家自然科学基金资助项目(52379003,51979005) （52379003,51979005）
陕西省自然科学基础研究计划项目(2022JC-LHJJ-03) （2022JC-LHJJ-03）
中央高校基本科研业务费专项(30012293201) （30012293201）
