SBC LTER: Nutrient concentrations and algae cover in the Ventura River catchment, California, 2008

Results from these data were reported in: Klose, K., Cooper, S. D., Leydecker, A. D. and
Kreitler, J. 2012. Relationships among catchment land use and concentrations of nutrients,
algae, and dissolved oxygen in a southern California river. Freshwater Science, 2012,
31(3):908-927 doi: 10.1899/11-155.1 Data not reported here: Chlorophyll-a, physicochemical and land use parameters (e.g., land-use type, water depth,
substratum size, % open canopy, and water velocity) were used in the paper's analysis and so
were also collected, but are not reported here. Nutrient diffusing substrata (NDS) were
deployed at 12 sites to assess the nutrient(s) limiting algal growth; these data are also not
reported here. Macroalgal cover and stream nutrients are reported during spring and summer 2008 at 15
stream and estuarine sites in the Ventura River catchment in southern California, USA. Data were
collected within a mosaic of undeveloped, agricultural, and urban areas to examine relationships
among land use, nutrients, algae, and dissolved oxygen (see paper, linked below). This dataset
reports major dissolved nutrients (phosphate, nitrate, ammonium) and total dissolved nitrogen
and phosphorus, from May to September 2008, and percent cover of macroalgae (benthic and
floating) at the same sites at the beginning and end of this period.

本数据集相关研究成果已发表于：Klose, K., Cooper, S. D., Leydecker, A. D. 与 Kreitler, J. 于2012年发表在《淡水科学（Freshwater Science）》的论文《加利福尼亚南部河流集水区土地利用与营养盐、藻类及溶解氧浓度的关联》，2012, 31(3):908-927，DOI: 10.1899/11-155.1
本数据集未收录以下数据：叶绿素a（Chlorophyll-a）、理化参数与土地利用参数（如土地利用类型、水深、底质粒径、裸盖百分比、水流流速），上述参数均被用于该论文的分析，虽已完成采集，但未纳入本数据集；营养盐扩散基质（Nutrient diffusing substrata, NDS）被部署于12个采样点以评估限制藻类生长的营养盐类型，此类数据同样未收录于本数据集
本数据集收录了2008年春夏季美国加利福尼亚州南部文图拉河集水区内15个溪流与河口采样点的大型藻类覆盖度与河道营养盐数据
本次采样覆盖未开发、农业与城市镶嵌分布的区域，旨在探究土地利用、营养盐、藻类与溶解氧之间的关联（详见下述论文）
本数据集收录2008年5月至9月期间的主要溶解态营养盐数据（磷酸盐、硝酸盐、氨氮）及总溶解态氮、总溶解态磷，同时收录同期各采样点初期与末期的大型藻类（底栖型与漂浮型）覆盖百分比