ABSTRACT:

This dataset supports the Quantifying Ecosystem Losses across Dimensions of Space and Time (QuEST) project investigating nutrient dynamics under baseflow conditions in an agricultural non-perennial stream in a rural heterogenous landscape dominated by pasture/hay and forest area in Northwest Arkansas. This data includes monthly spatially intensive baseflow sampling of 20 sites nested across Brush Creek from October 2023-September 2024 for nitrate (NO3-N), soluble reactive phosphorus (SRP), discharge (Q), and flow state (F=flowing, P=pooled, D=dry). The interactive effects of agricultural land use and stream intermittency are understudied and thus makes our findings important in developing targeted management approaches as flow variability increases.

ABSTRACT:

This dataset supports the Quantifying Ecosystem Losses across Dimensions of Space and Time (QuEST) project investigating nutrient dynamics under baseflow conditions in an agricultural non-perennial stream in a rural heterogenous landscape dominated by pasture/hay and forest area in Northwest Arkansas. This data includes monthly spatially intensive baseflow sampling of 20 sites nested across Brush Creek from October 2023-September 2024 for nitrate (NO3-N), soluble reactive phosphorus (SRP), discharge (Q), and flow state (F=flowing, P=pooled, D=dry). The interactive effects of agricultural land use and stream intermittency are understudied and thus makes our findings important in developing targeted management approaches as flow variability increases.

ABSTRACT:

This dataset supports a study investigating local and watershed-scale controls on sediment export under baseflow and stormflow conditions in a rural heterogeneous landscape in Northwest Arkansas. This is particularly relevant in regions like the Southeastern United States, where the majority of county roads are unpaved, making our findings broadly applicable to rural landscapes globally that face increasing challenges from climate change-induced precipitation patterns. This data includes monthly sampling for total suspended solids (TSS) and discharge (Q) at six road crossing sites (e.g., bridges, culverts, and direct stream crossings), as well as storm sampling four times during the February 2024 to January 2025 sampling period. Physical parameters such as dissolved oxygen and temperature are also included in this dataset.