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Managing the Lower Mississippi River Landscape for Strategic Navigational and Flood Control
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作者 Kenneth R. Olson David R. Speidel 《Open Journal of Soil Science》 2021年第6期285-330,共46页
The Lower Mississippi River flows from the confluence of the Ohio River and Mississippi River at Cairo, Illinois into the Gulf of Mexico. Mississippi River and Ohio River pathway shifts have shaped and re-shaped the l... The Lower Mississippi River flows from the confluence of the Ohio River and Mississippi River at Cairo, Illinois into the Gulf of Mexico. Mississippi River and Ohio River pathway shifts have shaped and re-shaped the landscapes through which they flow and where their sediment-laden tributary waters co-mingle at the confluence on the voyage to the Gulf of Mexico. For much of their history, the lands adjacent to the Lower Mississippi River were bottomlands that flooded with the seasons unconstrained by human river training structures. Since 1717 European nations have fought over strategic navigational control of the Mississippi River. After the Louisiana Purchase in 1803, the United States took controlled the Lower Mississippi River. During the Civil War, from 1861-1865, the Union and Confederate forces battled for navigational control of the Lower Mississippi River. The primary objective of this paper was to highlight how the strategic navigational and flooding control of the Lower Mississippi River and geological and landscape resources were responsible for the successful economic development of this rich historical region of North America. 展开更多
关键词 Atchafalaya Bonnie Carre Spillway Floodways Morganza Floodway Water Storage Areas West Atchafalaya Floodway Civil War gunboats Mound City CAIRO Illinois SLAVES
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赫德和晚清蚊子船订造中的佣金惯例
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作者 张诗丰 《海关与经贸研究》 2017年第3期55-64,共10页
19世纪70年代,赫德主持购买的蚊子船是晚清政府第一次向西方造船厂直接订造军舰。赫德通过金登干了解到厂商支付代理人佣金的惯例和准确的价格情报,通过利用和违反相关惯例争取到了最低的购船价格,节省了宝贵的外汇。同时,这次订造活动... 19世纪70年代,赫德主持购买的蚊子船是晚清政府第一次向西方造船厂直接订造军舰。赫德通过金登干了解到厂商支付代理人佣金的惯例和准确的价格情报,通过利用和违反相关惯例争取到了最低的购船价格,节省了宝贵的外汇。同时,这次订造活动也为晚清政府在舰船采购中防止经手官员接受佣金起到了积极的示范作用。 展开更多
关键词 晚清海关 赫德 蚊子船 佣金惯例
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