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Relating imperviousness to building growth and developed area in order to model the impact of peri-urbanization on runoff in a Mediterranean catchment (1964-2014)
Journal of Land Use Science ( IF 3.2 ) Pub Date : 2019-10-24 , DOI: 10.1080/1747423x.2019.1681528
Dennis M. Fox 1 , Zahida Youssaf 1 , Cyriel Adnès 1 , Olivier Delestre 2
Affiliation  

Urban growth transforms vegetated lands into impervious surfaces, thereby increasing runoff and peak discharge. In this study, the relationships between building growth, developed area, and impervious area were examined to determine the impact of peri-urbanization on peak discharge. This was modeled for four dates spanning 50 years (1964–2014) in a Mediterranean catchment located in S-E France. Imperviousness was estimated from building footprints for 1964, 1978, 1999, and 2014 and buffer zones around buildings. The Terrset Runoff module and HEC-HMS were used to model the impacts of urbanization on peak discharge. The number of buildings in the 235 km2 catchment increased by 207.3%, the developed area increased by 149.7%, and catchment imperviousness increased by only 75.5%. Impervious area increased much more slowly than building growth would suggest, so the increase in peak discharge was smaller than expected (4-8% in the 50-year interval).



中文翻译:

与建筑增长和发达地区的不透水性相关,以模拟城市化对地中海流域径流的影响(1964-2014年)

城市的增长将植被的土地变成了不透水的土地,从而增加了径流量和洪峰排放。在这项研究中,检查建筑物的增长,发达区域和不透水区域之间的关系,以确定城市周边化对高峰流量的影响。该模型是为位于法国东南部的一个地中海集水区中跨越40年(1964年至2014年)的四个日期建模的。从1964年,1978年,1999年和2014年的建筑足迹以及建筑物周围的缓冲区估计不渗透性。Terrset径流模块和HEC-HMS用于模拟城市化对高峰流量的影响。235 km 2中的建筑物数集水量增加了207.3%,发达地区增加了149.7%,集水不透水仅增加了75.5%。防渗面积的增加比建筑物的增长要慢得多,因此高峰流量的增加小于预期(50年间隔中为4-8%)。

更新日期:2019-10-24
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