论文部分内容阅读
射阳河是苏北里下河地区排水人海的最大干河,西从宝应射阳湖起,向东流经建湖、阜宁、滨海、射阳等县(为叙述方便,本文将射阳河的建湖和阜宁马荡段称为上游,阜宁段称为中游,射阳、滨海段称为下游),全长198km,河口宽100—450m,水深5—11m,曲折系数43%.射阳河流域面积4036km~2,涉及盐城市4个县,养育着近400百万盐阜儿女,肩负着整个里下河地区40%的防洪、排涝重任,承担着32万公顷耕地的灌溉任务.射阳河中、下游的航道,可通3000t级海轮,沟通着通榆运河、串场河、嗄粮河等重要河道,是盐城市发展河海联运的黄金水道.射阳河上、下游特别是下游水质清澈,大部分指标达到2类水质,不仅是两
Sheyang River is the largest dry river in the Lixiahe area of northern Jiangsu. From the Sheyang Lake in Baoying to the west, it flows eastward through Jianhu, Funing, Binhai and Sheyang counties (for the convenience of narration, this article will shoot Yanghe’s Jianhu and Funining Maandang sections are called the upper reaches, Funing section is called the middle reaches, Sheyang and Binhai section are called the lower reaches), with a total length of 198km, an estuary width of 100-450m, a water depth of 5-11m and a meandering coefficient of 43 Sheyang River Basin covers an area of 4036km ~ 2, involving 4 counties in Yancheng City, raising nearly 400 million children in Yanfu, shouldering the entire Lixiahe area 40% of flood control, drainage responsibility, undertaking a total of 320,000 hectares of arable land Irrigation task. Sheyang River, the lower reaches of the fairway, through 3000t-class seagoing vessels, communicate with the Tongyu Canal, Chuanchang River, 嗄 grain river and other important rivers, Yancheng City is the development of river waterway. In particular, the downstream water quality is clear, most of the indicators to reach 2 categories of water quality, not only two