Characterization of the spatial differences in hydrological functioning in a tidal marsh, Patuxent River, Maryland
- 出版日期：2004.
- 页数：1 v. :
- 第一责任说明：Karen Elizabeth Phemister.
- 分类号：a223
- ISBN：0496129538(ebk.) :
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02h0029358 20120611164454.0 cr un||||||||| 120611s2004 xx ||||f|||d||||||||eng | 1424083 0496129538(ebk.) : CNY371.35 NGL NGL NGL a223 Phemister, Karen Elizabeth. Characterization of the spatial differences in hydrological functioning in a tidal marsh, Patuxent River, Maryland [electronic resource] : a framework for understanding nutrient dynamics / Karen Elizabeth Phemister. 2004. 1 v. : digital, PDF file. Adviser: Prestegaard, Karen L. Thesis (M.S.)--University of Maryland, College Park, 2004. This study investigates spatial variations in sediment hydraulic conductivity (K), network channel shape and horizontal groundwater flux magnitude toward tidal network channels in a freshwater tidal marsh. Results showed the average value of K at zero meters from the creekbank was significantly higher than the K at both 5 and 15 meters from the network channel creekbank. Creekbank gradient did increase with increasing distance from the main channel and some data indicated that channel width-to-depth ratio (F), which is inversely related to creekbank gradient, correlates well with K. In addition, horizontal groundwater flux magnitude at a depth of 11 cm was significantly greater than flux magnitude at 22 cm below the ground surface at the first-order network channel location. Horizontal flux magnitude was also significantly higher from 5 to 0 meters than from 15 to 5 meters from the network channel creekbank at both the first- and second-order channel locations. Hydrology Maryland ; Patuxent River. Electronic dissertations. aeBook. aCN bNGL http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=xiw5vk8tPB8%3d NGL Bs1462 rCNY371.35 ; h1 bs1204