Disturbances such as sea level rise, increased extreme weather events, and climate change can have lasting impacts on terrestrial ecosystems. Monitoring greenhouse gas fluxes at the terrestrial-aquatic interface offers a way to quantify the stability and resilience of terrestrial soils in a stressed environment.
We are testing soil response to salt water intrusion by monitoring soil respiration rates along a creek transect at the Smithsonian Environmental Research Center (SERC). We have transplanted soil cores (40 cm diameter, 20 cm depth) along a salinity and elevation gradient at three locations (~1 km between salinity plots, ~50 m between elevation plots). This design will also be replicated on the west coast at Beaver Creek. We hypothesize that an increase in salinity will suppress soil CO2 respiration, but not affect methane production.
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Last run: Wed Dec 11 09:27:14 2019
| Site | Experiment | N |
|---|---|---|
| SERC | Control | 56 |
| SERC | Elevation transplant | 32 |
| SERC | Salinity transplant | 36 |
#>
#> Attaching package: 'lubridate'
#> The following object is masked from 'package:base':
#>
#> date
#> # A tibble: 201,733 x 7
#> # Groups: Site, Sensor_Depth, Sensor_Group [18]
#> Site Sensor_Depth Sensor_Group Timestamp n meanValue
#> <chr> <chr> <chr> <dttm> <int> <dbl>
#> 1 HSLE 20CM Temp 2018-06-12 13:53:03 1 17.3
#> 2 HSLE 20CM Temp 2018-06-12 14:08:03 1 17.3
#> 3 HSLE 20CM Temp 2018-06-12 14:23:03 1 17.3
#> 4 HSLE 20CM Temp 2018-06-12 14:38:03 1 17.4
#> 5 HSLE 20CM Temp 2018-06-12 14:53:03 1 17.4
#> # … with 2.017e+05 more rows, and 1 more variable: sdValue <dbl>
#> Warning: Removed 12 rows containing missing values (position_stack).
