CJCZO -- Soil Water Chemistry -- Jemez River Basin -- (2011-2019)

Soil solution samples in the JRB field sites are collected with two types of soil solution samples: i) Prenart Super Quartz suction cups (www.prenart.dk). Prenart suction cups are optimized for all chemistry analyses and were installed without addition of Si-slurry to allow for artifact-free Si analyses. Applied suction for each Prenart is ~ 60kPa. ii) Custom made, fiberglass wick-based passive capillary wick samplers (PCaps, Perdrial et al. 2012). PCaps are optimized for water flux determination and sampling for organic carbon, most anions and metals. PCap samples should however not be used for major cations (Na, Mg, Si, K, Ca) and dissolved inorganic carbon because of artifacts from the fiberglass materials (see Perdrial et al in prep. For a complete list). Passive suction, based on the length of the hanging water column, is ~3 kPa. Soil solution samplers were installed in each of six pits in the Mixed Conifer Zero Order Basin (MC-ZOB) and the fire impacted site (burn ZOB) at 3 (PCaps) and 4 (Prenarts) depth, respectively. Pit locations were selected to capture differences in catchment aspect (MC-ZOB SE facing: Pit 3 and 4, NW facing: Pit 1 and 6), landscape position (MC-ZOB: hollow Pit 2 and 5, planar Pit 1 and 6, divergent Pit 3, convergent Pit 4), elevation and burn severity (co-varying in Burn ZOB: low Pit 1 and 2, mid Pit 3, high Pit 4 to 6). All samplers are collocated with Decagon soil moisture and temperature probes.