River Nutrient Uptake and Transport at North Temperate Lakes LTER (2005-2011)

These data were collected by Stephen Michael Powers and collaborators for his Ph.d.
research, documented in his dissertation: River Nutrient Uptake and Transport Across
Extremes in Channel Form and Drainage Characteristics. A major goal of this research was to
 better understand how ecosystem form and landscape setting dictate aquatic biogeochemical
functioning and elemental transport through rivers. To achieve this goal, major and minor
ions were measured in both northern and southern Wisconsin streams located in a variety of
land use settings. In total, 27 different streams were sampled at 104 different stations
(multiple stations per system) from both groundwater and surface water sources. Organic and
inorganic carbon and nitrogen pools were also measured in northern and southern Wisconsin
streams. The streams that were sampled in northern Wisconsin flow through wetland
ecosystems. In sampling such streams, the goal was to better understand how wetland
ecosystems influence river nutrient deliveries. There is a large amount of stream chemistry
data for Big Spring Creek, WI; where the influence of a small reservoir on solute
transportation and transformation was studied in an agricultural watershed. All stream
chemistry data is incorporated in a single data file, Water Chemistry 2005-2011. While the
data is not included in the dissertation, a sediment core study  was also done in the small
reservoir and channel of Big Spring (BS) Creek, WI. The results of this study are featured
in three data tables: BS Creek Sediment Core Analysis, BS Creek Sediment Core Chemistry, and
BS Creek Longitudinal Profile. Finally, two data tables list the geospatial information of
sampling sites for stream chemistry and sediment coring in Big Spring Creek.  
Documentation: Powers, S.M., 2012. River nutrient uptake and transport across extremes in
channel form and drainage characteristics. ProQuest Dissertations and Theses. The University
of Wisconsin - Madison, United States -- Wisconsin, p. 140.

本数据集由斯蒂芬·迈克尔·鲍尔斯（Stephen Michael Powers）及其合作者为其博士研究采集，相关成果收录于其博士学位论文《河道形态与水文特征极端条件下的河流养分摄取与输运》（River Nutrient Uptake and Transport Across Extremes in Channel Form and Drainage Characteristics）。本研究的核心目标在于深入解析生态系统形态与景观背景如何调控河流水生生物地球化学过程与元素输运机制。为达成该目标，研究团队针对威斯康星州北部与南部不同土地利用类型流域内的溪流，测定了主要与微量离子浓度。本次研究共在104个采样站位（单个水系设置多个站位）对27条不同溪流的地下水与地表水进行了采样分析；同时测定了威斯康星州南北部溪流中的有机碳、无机碳与氮库组分。其中，威斯康星州北部的采样溪流均流经湿地生态系统，本次采样旨在明晰湿地生态系统对河流养分输入的调控作用。数据集包含大量威斯康星州大斯普林溪（Big Spring Creek）的水化学数据——该研究针对农业流域内小型水库对溶质输运与转化的影响展开。所有水化学数据整合至单份数据文件《2005-2011年水化学数据》（Water Chemistry 2005-2011）中。尽管该部分数据未收录于博士论文，但研究团队同时针对威斯康星州大斯普林溪的小型水库与河道开展了沉积物岩芯研究，相关成果收录于三张数据表：《大斯普林溪沉积物岩芯分析》（BS Creek Sediment Core Analysis）、《大斯普林溪沉积物岩芯化学组成》（BS Creek Sediment Core Chemistry）与《大斯普林溪纵向剖面》（BS Creek Longitudinal Profile）。另有两张数据表分别记录了大斯普林溪内开展水化学采样与沉积物岩芯采样的点位地理空间信息。相关参考文献：Powers, S.M., 2012. 河道形态与水文特征极端条件下的河流养分摄取与输运. ProQuest学位论文库. 威斯康星大学麦迪逊分校, 美国威斯康星州, 第140页。