LTAR 15 gas sampling - Brian, Slater, Jon

LTAR Hydrosense - Trajana

BCSE gas chamber prep - Sarah

Woody maintenance -

Collect LTAR leachate - Sarah, Sam

Sticky traps - Slater, Brian

LTAR gas chamber prep - Trajana

Evacuate LTAR lysimeters. Clip pre-mow samples from ASP6 R5… 2x0.5m frame placed approximately in the center of each half of the plot (east and west halves), with the 0.5m frame ends oriented towards the east and west. Sorted to species in the field lab later. - Brian, Slater

Sticky traps - Jon, Sam

BCSE soil sampling, used bucket augers, one core/station to 25 cm depth, in G1-3 one core/row, one core centered halfway between rows, and one core halfway between the row and the center - Trajana, Sarah, Slater, Brian, Jon

Woody maintenance -

Reinstalled MDARD collars to R2,3,4 ASP and BAU corn for the MDARD project. Two collars on six fields=12 collars to capture Depression, Summit, and slope conditions with in and between row placement.

LTER 8 gas sampling - Sam, Slater, Jon, Brian, Sarah

LTER Hydrosense - Alyssa

Replace short flags with regular tall station flags in LTAR corn and soybeans and BCSE G1-3 - Sarah, Brian

LTAR 14 gas sampling - Sam, Jon, Slater

BCSE 10 gas sampling - Sarah, Brian

LTAR and BCSE Hydrosense - Trajana

LTER gas chamber prep -

Collect LTER leachate - Brian, Sarah

LTAR, BCSE gas chamber prep - Slater, Trajana

Sticky traps - Jon, Sam

Evacuate LTER lysimeters - Trajana, Sarah

Sticky traps - Brian, Slater

LTER soil sampling, T1, 2, 3, 4, 5: too dry for push corer, sampled with bucket auger, took one sample (to 25cm depth) from each station 1, 2, 4, 5 (skip station 3), alternating in the crop row and between. T6-8 and the forest: sampled as usual with 2 push core samples per station. - Alyssa, Slater, Olivia, Brian, Trajana, Sam, Sarah, Jon

BCSE 9 gas sampling - Slater, Olivia

BCSE Hydrosense - Trajana

Tree maintenance - Brian, Jon, Olivia, Trajana

LTAR 13 gas sampling - Brian, Sarah, Jon

LTAR Hydrosense - Trajana

BCSE gas chamber prep -

Collect LTAR leachate - Sarah, Jon

Sticky traps (reinstall T6) - Brian, Sam

LTAR gas chamber prep - Olivia, Trajana

Evacuate LTAR lysimeters - Trajana, Jon

Sticky traps - Sam, Brian, Jon

LTAR soil sampling -

Install ASP2, ASP5 tall station flags -

Fix tipping and fallen flags on BCSE and LTER - Slater, Trajana

LTER 7 gas sampling - Slater, Jon, Sam, Sarah, Olivia, Trajana (Hydrosense)

LTAR 12 gas sampling - Trajana, Jon, Sarah

BCSE 8 gas sampling - Sam, Slater

LTAR and BCSE Hydrosense - Alyssa

LTER gas chamber prep -

Collect LTER leachate - Slater, Sarah

Sticky traps, pull T6 for fertilization -

LTAR, BCSE gas chamber prep - Olivia, Trajana

Evacuate LTER lysimeters - Slater, Sam

Sticky traps - Sam, Slater, Jon

LTER soil sampling, very dry in T1-4 so sampling was difficult and took most of the day - Slater, Sam, Jon, Sarah, Trajana, Clara, Olivia

Installed G1-3 (except G1R2 and G1R3, those two chambers were accidentally left in during herbicide application on 5/29) chambers just prior to gas sampling BCSE 7 - Slater, Brian

BCSE 7 gas sampling - Olivia, Sam, Andie (Hydrosense)

Collect LTAR leachate - Sarah, Jon

Evacuate LTAR lysimeters - Brian, Sarah

LTAR 11 gas sampling - Sam, Slater, Jon, Andie (Hydrosense)

ASP2 forage sampling ahead of harvest, Stations 1, 2, 3: 0.5mS, 0.5mW to NE corner of 2 x 0.5m frame, oriented with the 0.5m ends on the east and west. Clip all plants rooted inside the frame as close to the ground as possible without collecting litter or soil. Sorted later in the field lab…MEDSA, TRFPR, CICSP, DACGL, BRSNA, remainder label UNSRT - Sam, Slater, Brian, Jon

Sticky traps - Sam, Slater, Brian, Jon

LTAR gas chamber prep - Alyssa, Sarah, Jon

LTER T3, T4 station (4 cores/station, 2 in the wheat row and 2 between wheat rows) and strip (4 cores spread across each strip avoiding transects, foot paths, traps and gas chambers) soil sampling - Sarah, Andie,

Sticky traps (first check for T3, T4, prairie strips; reinstallation for T1, T2 as they were pulled for fungicide over the weekend) - Slater, Brian, Jon, Sam

LTER 6 gas sampling - Olivia, Brian, Trajana, Sarah, Jon, Slater, Andie, Sam

LTER Hydrosense - Trajana

BCSE 6 gas sampling - Brian, Andie, Slater (soil, 3 cores/plot)

LTAR 10 gas sampling - Sarah, Jon, Sam

BCSE and LTAR Hydrosense - Trajana

LTER gas chamber prep -

Collect LTER leachate - Olivia, Brian, Jon, Sarah

BCSE and LTAR gas chamber prep - Slater, Sam, Trajana, Andie

Sticky traps (first cards deployed in T5-7 and forest plots) - Sam, Slater, Brian, Jon

Evacuate LTER lysimeters - Trajana w/Jon, Andie w/Sarah

Sticky traps (deploy first sticky cards in T1-4 and prairie strips) - Sam, Slater, Brian, Jon

LTER soil sampling, 2nd May -

Swap and mail first aphid tower sample - Stacey

Finish installing MCSE T-posts - Sam, Slater, Brian, Jon

Finish dumping soil - Olivia, Trajana

Finish installing LTAR station flags - Andie, Sarah

LTAR 9 gas sampling - Alyssa (train Sarah, Jon), Andie, Slater

LTAR Hydrosense - Trajana

Finish M3 switchgrass stand counts - Alyssa, Sarah

Deploy MCSE T-posts - Sam, Slater, Brian, Jon

Collect LTAR leachate - Alyssa, Jon, Sarah, Slater

BCSE 5 gas sampling - Olivia, Sam

BCSE Hydrosense - Trajana (trained by Stacey, Dave)

LTAR gas chamber prep - Brian

Install BCSE G1 station flags, prep BCSE gas chambers - Brian

Evacuate LTAR lysimeters - Alyssa (training Jon and Sarah), Slater

Switchgrass stand counts (L2, M3) - Alyssa, Sarah, Jon

Start installing T-posts in MCSE plots for sticky card deployment starting 5/20/2025 - Slater, Brian

First day for Sarah Ru and Jon Di

LTAR station flag installation - Alyssa, Trajana

LTAR soil sampling - Slater, Olivia, Brian, Sam

Switchgrass stand counts (T6, L2). T6 and Scale-up (L2, M3) were the same as BCSE G4, G5… using 75 x 75 cm frame split into 25 cells (5x5) each measuring 15cm x 15cm. Started approximately 1m N and 1m W of each station, placed the frame on the ground and counted each cell that had switchgrass growing inside it. Then the frame was flipped to the north and switchgrass cells counted three more times. So, 100 cells were evaluated in total at each station. The GPS was used to navigate to the Scale-up station locations since the flags weren’t installed. - Alyssa, Sarah, Jon

Dump soil - Sam, Brian

Dave and I lowered the tower boom between 14:00 and 14:30. Dave aligned the CO2 sensor and I installed the rain gauge and the soil sensors. I put the heatflux plates about 1 cm below the surface with the dot facing up, the soil moisture and temperature probes vertically. I’m not sure if the soil temperature probes are supposed to be vertical or horizontal. Planting was nice and close to the tower.

LTER 5 gas sampling - Alyssa, Sam, Slater, Brian, Olivia

LTER Hydrosense - Alyssa

Dump soil -

LTAR 8 gas sampling - Sam, Slater, Brian

LTAR Hydrosense - Alyssa

Switchgrass stand counts (SWF) - Alyssa, Trajana

Dump soil -

REX probe K on T7R4 was shorted to ground. I disconnected the probe. Probe addresses were not on the SDI12 ports that the program was expecting. I updated the program to match the sdi12 port connections. Probe i had the power wire tied in a knot which i often do when I want to mark a probe as bad, but I reconnected probe i and it appears to work.

Collect LTER leachate - Sam, Slater

Prep LTAR and LTER gas chambers - Olivia, Trajana

Continue switchgrass stand counts (finished G5, started SWF). For the switchgrass gradient: frame was placed about 1mN and 1mW of the southeast plot corner for both the former H1 and H2 plot halves. Switchgrass cells were counted and then the frame filpped once to the north. So, each plot had 100 cells evaluated… 50 in former H1, 50 in former H2. - Alyssa, Brian

Evacuate LTER lysimeters - Trajana, Sam

LTER 1st May soil sampling - Alyssa, Sam, Slater, Trajana, Andie

Replace T8 station flags - Olivia, Brian

Help Poulamee and Maxwell from the Kravchenko lab sample BCSE soil for MONet - Brian, Olivia

Start switchgrass stand counts in BCSE G4, G5 main plots only, using 75 x 75 cm frame split into 25 cells (5x5) each measuring 15cm x 15cm. Started approximately 1m N and 1m W of each station, placed the frame on the ground and counted each cell that had switchgrass growing inside it. Then the frame was flipped to the north and switchgrass cells counted three more times. So, 100 cells were evaluated in total at each station. - Alyssa,

Install T6 station flags - Sam, Slater

Finish trimming and marking LTER forest paths - Olivia, Trajana, Slater, Sam

Pull T8 flags and frames for mowing - Andie, Brian

Dump BCSE biomass on the burn pile - Slater, Sam

BCSE Series 4 gas sampling with soil sampling (pre-fertilization, one 0-25cm core per station, where applicable one was taken in the previous crop row, one half way between rows and one half way between those two), in error some plots (G1R1, G2R1, G2R2, G3R1, G3R3, G4R1, G4R2, G4R3, G5R1, G5R3) were sampled three cores per station instead of three total per plot. - Andie, Olivia, Brian (soil)

LTAR Series 7 gas sampling - Slater, Trajana, Sam

BCSE and LTAR Hydrosense - Alyssa

BCSE and LTAR gas chamber prep - Alyssa, Brian

Finish forest N-deposition fertilization (SF2, DF3, CF3) - Trajana, Olivia

Collect LTAR leachate - Slater, Sam

Sample ASP3 and ASP4 plants ahead of herbicide. Both: Stations 1, 2, 3: 0.5mS, 0.5mW to NE corner of 2 x 0.5m frame, oriented with the 0.5m ends on the east and west. Clip all plants rooted inside the frame as close to the ground as possible. Avoid collecting litter, soil and especially compost in ASP3. Sorted in field lab later… ASP3: MEDSA, TRFPR, CICSP, LOLMU, and UNSRT. ASP4 was sorted in the field: SECCE, CAMSA (Camelina sativa, winter camelina, none found) and UNSRT. In addition ASP4R5 was sampled for the first time by placing the frame approximately in the center of each half of the plot (east and west halves), with the frame perpendicular to the rye grass row. Samples labeled ASP4R5 W and E. - Alyssa, Brian, Trajana, Olivia, Slater, Sam

Help Poulamee and Maxwell from the Kravchenko lab sample BCSE soil for MONet - Brian, Olivia

Fertilize N-deposition microplots (CF1, DF1, SF1, DF2, CF2, SF3). Using Urea (46% N), first of three applications for 2025. 1F (all except CF3): 1gN/m2 applied to 10×10m plot, equal to 217g Urea divided into three applications of 72.5g (spring, summer, fall) each mixed with 4L water 1F-CF3: 1gN/m2 applied to 2×3m plot, equal to 13g Urea divided into three applications of 4.3g each mixed with 2L water 3F: 3gN/m2 applied to 2×2m plot, equal to 26.1g Urea divided into three applications of 8.7g each mixed with 2L water 10F (in DF only): 10gN/m2 applied to 2×2m plot equal to 87g Urea divided into three applications of 29g each mixed with 2L water. Accidentally mixed CF1-3F and DF1-3F into 4L of solution instead of 2L, so received the right amount of fertilizer but twice as much water. - Slater, Andie

Evacuate LTAR lysimeters - Sam, Trajana

LTER Series 4 gas sampling - Slater, Trajana, Brian, Andie, Olivia

LTER Hydrosense - Alyssa

LTAR Series 6 gas sampling (BAU1 R1 was installed just prior to sampling - was missed during prep); ASP3 microplot chambers were installed by the Blesh lab 4/23 since they are sharing those chambers, were installing their other chambers and techs had forgotten to install those. An error was made in sampling ASP3 microplots due to confusion with the Blesh lab chambers in the neighboring microplots in ASP3. ASP3 R2 and R4 no compost microplots were sampled correctly. ASP3 R1 and R3 Blesh lab microplot chambers in the next microplot to the east were accidently sampled. - Slater, Olivia, Stacey

LTAR Hydrosense - Alyssa

Install LTER T1, 2, 6 gas chambers - Slater, Trajana, Brian

LTER 2nd April soil sampling - Alyssa, Slater, Brian, Trajana, Andie

Install ASP1 and ASP5 chambers -

Help Mark move OTCs - Brian, Slater

Collect LTER leachate - Olivia, Slater

LTAR and LTER gas chamber prep; pulled ASP1 and ASP5 chambers, installed BAU1 and ASP3 main, forgot to install ASP3 microplot chambers - Brian, Trajana

Evacuate LTER lysimeters - Brian, Olivia

Install T6R1-6S5 flags for Jin Ho to sample soil - Brian

Install ASP6 flags -

LTAR 5 gas sampling - Slater, Trajana, Olivia

LTAR Hydrosense - Alyssa

Collect LTAR leachate - Andie, Trajana

BCSE 3 gas sampling - Slater, Brian

BCSE Hydrosense - Alyssa

Evacuate LTAR lysimeters, prep BCSE and LTAR gas chambers - Olivia, Brian

LTAR April soil sampling, first sampling to include new R5 plots - Alyssa, Slater, Brian, Trajana

Added CS650 sensors to T7r3,4,2,6 (did T7 r1,5 2 weeks ago). Added positions to Survey 123 and hard copy map.

All chambers and bases are removed from BCSE G1 and 5. Compressor shut down in December for last measurements. Keeping both analyzers running to keep stable. Waiting for electric at LTAR R5 to move system.

LTER Gas Series 3 - All + hydrosense (Alyssa, Andie) (Forest set DF2, CF2, SF3 split and sampled by two people due to issue with golf cart)

Dishes - Brian

LTAR Gas Series 4 - Trajana, Slater, Brian + Hydrosense (Alyssa)

Finish LTER gas frame prep - Alyssa

Collect LTER Lysimeters - Slater, Andie

Prep LTAR, LTER gas frames - Brian, Trajana

Evacuate LTER Lysimeters - Brian, Trajana

Finish sieving LTER soil - Slater

LTER Soil sampling - Alyssa, Brian, Slater, Trajana

LTAR Series 3 gas sampling - Slater, Andie, Alyssa (+Hydrosense), Olivia

Collect LTAR leachate from 4/1 evacuation - Slater, Andie, Alyssa, Olivia

Collection of LTAR leachate had to be delayed until 4/3 due to all day heavy rain and storms.

Evacuate LTAR lysimeters; LTAR gas chamber prep - Slater, Andie

BCSE Series 2 gas sampling - Slater, Andie (Hydrosense too)

BCSE gas chamber prep -

LTER 2 gas sampling (first full set for 2025), prairie strips had to be sampled in the afternoon - Slater, Brian, Trajana, Olivia

LTER Hydrosense; Pull LTAR ASP1, ASP5, ASP6 frames for fertilizer and mowing - Alyssa

LTAR 2 gas sampling - Slater, Brian, Trajana

LTAR Hydrosense - Alyssa

Sampled soil from new LTAR R5 plots, twelve 0-25cm cores per plot pooled, six from the north half and six from the south half, approx. evenly space across the plot EW; when a row crop was present alternated taking a core in the row and between rows - Stacey

Prep LTAR and LTER gas chambers, install T7 and T7 microplot chambers - Slater, Trajana

First 2025 LTER soil sampling, two 0-25cm cores NE of each station, did not sample T6 since flags had been pulled and switchgrass is still not harvested - Alyssa, Slater, Brian, Trajana, Andie

Replace T7 station flags, fix all other LTER, BCSE, LTAR station flags that were leaning or fallen -

Collect LTAR leachate - Brian, Trajana

Evacuate LTAR lysimeters -

First LTAR soil sampling for 2025, two 0-25cm cores per station (NE of station) - Alyssa, Slater, Trajana, Brian

LTAR Series 1 gas sampling - Slater, Brian, Olivia

LTAR Hydrosense - Alyssa

LTAR gas chamber prep, pull ASP4 microplot chambers and install in ASP3 microplots, sample ASP6 biomass to approximate what could be harvested… from each station, 1.5mN, 0mW to SE corner of 2 x 0.5m frame, plants cut at 6 inches above the ground with electric trimmers, bagged as UNSRT, if plants were lodged or lying down - they were not stood up for cutting. - Slater, Brian, Andie, Trajana

Collect LTER leachate - Slater, Brian

Pull T7 flags and gas frames for burning - Olivia, Trajana

Burn all T7 plots - Kevin, Sven, Dave, Stacey, Alyssa, Olivia, Trajana, Brian, Slater, plus several others (about 16 total)

Evacuate LTER lysimeters (first for 2025) - Slater, Trajana, Brian, Andie

BCSE Series 1 gas sampling - Brian, Slater

Hydrosense in LTER and BCSE - Kevin trained Alyssa (MCSE and BCSE) and Stacey (DF)

Evacuated LTER lysimeters that were installed in fall 2024 since conditions were very dry many did not yield leachate in November or December 2024. These lysimeters were evacuated on 3/7/2025 and left over the weekend. The lids were completely off from DF3-1 and DF3-6. On 3/11/2025 they were checked for pressure, the volume of leachate approximated and then the leachate dumped before re-evacuating with the regular sampling. - Stacey

Lysimeter, pressure, volume from 3/11/2025; CF1-1, N, 0; CF1-3, N, 0; CF1-6, N, 0; CF2-1, N, 20; CF2-3, Y, 300; CF2-6, Y, 200; SF3-1, Y, 600; SF3-3, Y, 450; SF3-6, Y, 200; DF3-1, Y, 350; DF3-3, Y, not recorded; DF3-6, N, not recorded; CF3-1, Y, 50; CF3-3, N, 50; CF3-6, Y, 200

LTER Series 1 gas sampling (last winter sampling) - Slater, Olivia, Trajana

Collect LTAR leachate - Slater, Olivia, Brian, Trajana

Evacuate LTAR lysimeters (first for 2025), ASP6R4/ASP2R4 box was frozen shut and couldn’t be opened, so those lysimeters were evacuated on 3/4/2025 and collected 3/5/2025. - Slater, Brian, Andie, Trajana

Dump 2024 LTER leftover plants and 2023 soil samples - Brian, Slater

Finish measuring trees - Slater, Trajana, Andie

Measure CF3 trees - Slater, Trajana

LTAR Series 30 gas sampling - Brian, Trajana, Olivia

Check LTAR gas chambers ahead of 2/11 sampling -

Measure trees (CF, DF) - Slater, Brian, Trajana

BCSE Series 20 gas sampling - Brian, Slater

LTER Series 16 gas sampling - Trajana, Slater, Brian, Olivia

Measure trees (CF, DF) - Alyssa, Slater, Trajana, Andie

Measure trees (CF, DF) - Slater, Brian, Trajana, Olivia

Measure trees (CF, DF) - Alyssa, Slater, Brian, Trajana, Andie

Measure trees (CF, DF) - Alyssa, Slater, Brian, Trajana, Olivia

Measure trees - Slater, Brian, Andie, Trajana

LTAR Series 29 gas sampling - Andie, Olivia, Brian

LTER Series 15 gas sampling - Andie, Trajana, Brian, Olivia

Measure trees in CF1 - Alyssa, Slater, Andie, Trajana

BCSE Series 19 gas sampling - Trajana, Slater