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Assessing human impact on alluvial fan development: a multidisciplinary case-study from Lower Khuzestan (SW Iran)

机译：评估人类对冲积扇发展的影响：下哈胡斯坦共和国（伊朗西南）的多学科案例研究

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摘要

This paper presents a multidisciplinary approach for studying the evolution of an alluvial fan system in Lower Khuzestan (SW Iran). The study draws on previously collected data from geological and archaeological field campaigns and new data derived from the interpretation of satellite imagery and historical textual sources. Three alluvial fans were identified, successively deposited by the Jarrahi river in progressively downstream/westward direction. Judging from archaeological and historical evidence, the successive phases appear to coincide with a relocation of settlement and irrigation activities. The distributary system of the present-day fan developed over a period of less than four centuries. It is suggested that management of levee breaks by man played a key role in such rapid fan development and in maintaining extremely low gradients. Judging from the extensive patterns of ancient irrigation canals, human activity also played an important role in the formation of the earlier fans.
机译：本文提出了一种多学科的方法来研究下胡胡斯坦（伊朗西南部）冲积扇系统的演变。这项研究借鉴了先前从地质和考古野战中收集的数据，以及从卫星图像和历史文字资料的解释中获得的新数据。确定了三个冲积扇，依次由贾拉希河沿下游/向西方向沉积。从考古和历史证据来看，后续阶段似乎与定居和灌溉活动的重新定位相吻合。今天的风扇的分配系统是在不到四个世纪的时间内发展起来的。有人建议，在如此快速的风扇发展和保持极低的坡度中，人为控制堤防的断裂起着关键作用。从古代灌溉渠的广泛格局来看，人类活动在早期爱好者的形成中也发挥了重要作用。

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