城市化对趵突泉泉域降水入渗补给的影响

为研究济南城市化发展对大气降水入渗补给的影响, 利用济南市 1980、1990、2000、2018 年的遥感数据和 Feflow 软件识别不同时段的趵突泉泉域大气降水入渗补给量, 分析城市化发展引起的土地利用类型变化对趵突泉泉 域降水入渗补给量的影响。结果表明: 1980- 2018 年, 研究区耕地和林地面积显著减少, 建设用地面积大幅增加; 2000- 2018 年, 研究区不透水面积增加了 213.13 km2 , 大气降水入渗补给量减少了2 625万 m3。研究成果可为济 南市未来的城区规划提供科学的参考, 也为济南保泉供水工作提供有效的数据支撑。

Impact of urbanization on precipitation infiltration recharge in Baotu Spring basin

To study the effects of urbanization and the impact of land-use on atmospheric precipitation infiltration recharge in Jinan of China, the Feflow softw are and the remote sensing data for the years of 1980, 1990, 2000, and 2018 were used to identify the atmospheric pr ecipitation infiltration rate in different periods in Baotu Spring basin. The results revealed that: the area of cultivated land and for est land has decreased sharply, while the built-up areas have increased significantly for they ears from 1980 t o 2018; the impervious area had increased by 213.13 km2 , while the atmospheric precipitation infiltration rate has decreased by 26.25 million m3 for the years o f 2000 and 2018. The results of this study co uld be used as a `scientific reference for future planning o f the Jinan city and also pr ovide effective data to a id in the sustainability and prot ection of the Spring basin