NWC01 Stream Water Chemistry for the King's Creek Drainage Basin on Konza Prarie

Nitrate, ammonium, total N, soluble reactive P, total P, and dissolved organic C are monitored in four streams draining watersheds with 1 (N01B), 2 (N02B), 4 (N04D), and 20 (N20B) year target burn frequencies. Bison have grazed these treatments since May 1992. The number of sites sampled has been expanded since 1992 to include sites that may reflect anthropogenic, groundwater, and bison influences on water chemistry. These sites include the south branch of Kings Creek as it leaves watershed N01A (tube), a site immediately below the NO4D weir at Konza Falls that is heavily influenced by groundwater (kzfl), the north fork of Kings Creek draining watersheds without bison (nfkc), the south fork of Kings Creek that drains the watersheds with bison (sfkc), Kings Creek below the USGS gauging station above the first agricultural field (hokn), a small creek that drains into Kings Creek after flowing past the bison handling facilities, two private residences, the site headquarters and an agricultural field (stck), a pristine prairie groundwater site (edlr), and Kings Creek at the bottom of Konza as it leaves the agricultural land in watershed AL (hikx). Early samples were preserved with phenyl mercuric acetate. Future plans to restore agricultural land to prairie may influence downstream nutrient concentrations.

本数据集对4条溪流开展监测，监测指标包括硝酸盐、铵态氮、总氮、可溶性活性磷（soluble reactive P）、总磷及溶解性有机碳；这些溪流分别流经目标火烧频率为1年（N01B）、2年（N02B）、4年（N04D）及20年（N20B）的4个流域。野牛自1992年5月起便在这些火烧处理样地中放牧。自1992年起，本数据集的采样点位数量得以扩充，新增点位可覆盖反映人类活动、地下水及野牛对水体化学性质影响的各类场景。具体新增采样点位包括：流出N01A流域的国王溪南支（tube）；康扎瀑布处紧邻NO4D堰且受地下水强烈影响的点位（kzfl）；流经无野牛放牧流域的国王溪北支（nfkc）；流经有野牛放牧流域的国王溪南支（sfkc）；位于美国地质调查局（USGS）首个农田上方水文测站下游的国王溪（hokn）；依次流经野牛处理设施、两处私人住宅、样地总部及一片农田后汇入国王溪的小型溪流（stck）；原生草原地下水点位（edlr）；以及流出AL流域农田的康扎底部国王溪（hikx）。早期样品采用乙酸苯汞进行保存。未来将农田恢复为草原的计划可能会对下游水体的营养盐浓度产生影响。