Bedrock weathering rate quantification

Knowledge graph centered on Bedrock weathering rate quantification with 12 nodes and 24 connections. Top connected: Pekania pennanti, East River, Bedrock weathering contributes to subsurface react, drive-point piezometer groundwater sampling, Gothic CASTNET station.

Method synopsis

Calculation of bedrock weathering rates using base cation export measurements combined with transmissivity feedback methods for subsurface flow estimation. Uses correlations between specific conductance and dissolved ion concentrations.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Bedrock weathering contributes to subsurface reactive nitrogen and nitrous oxide emissions (2021), Nature Geoscience. Implementations in other papers (listed below) may differ.

1. Calculate weathering and export rates
   Quantified weathering using base cation export calculations with BC = (K + Ca²⁺ + Mg²⁺ + Na⁺). Used transmissivity feedback method to calculate total dissolved nitrogen export rates for three-layer system. Applied daily BC discharge rates and seasonal flow patterns
   Quantities: Calculations applied to all monitored locations and time periodsDuration: Applied to 3 years of monitoring dataConditions: Post-processing of field data
   Equipment: computational analysis software

Typical Equipment

• computational analysis software

Output Measurements

• weathering rates
• base cation export rates
• total dissolved nitrogen export rates

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used