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An empirical seed transfer zone

Source: R/eSTZwritR.R
acth7.Rd

This data set is from Johnson et al. 2017, and slightly modified by us. It is an eSTZ of Eriocoma thurberiana. Johnson, R. C., E. A. Leger, and Ken Vance-Borland. "Genecology of Thurber’s Needlegrass (Achnatherum thurberianum [Piper] Barkworth) in the Western United States." Rangeland Ecology & Management 70.4 (2017): 509-517.

Format

A data frame/tibble/sf with 2 columns

ID

A unique ID for each each polygon, note this includes gaps in the numbering.

GRIDCODE

From an ESRI raster, the classification output used during creating the product.

area_ha

From ESRI calulcated area of each polygon.

zone

STZ defined by the authors from the GRIDCODE.

geometry

sf geometry column

Examples

acth7 <- sf::st_read(file.path(
   system.file(package="eSTZwritR"), "extdata", 'ACTH7.gpkg')
)
#> Reading layer `ACTH7' from data source 
#>   `/home/runner/work/_temp/Library/eSTZwritR/extdata/ACTH7.gpkg' 
#>   using driver `GPKG'
#> Simple feature collection with 4967 features and 4 fields
#> Geometry type: MULTIPOLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -121.5447 ymin: 36.53208 xmax: -111.0114 ymax: 46.35708
#> Geodetic CRS:  WGS 84
plot(acth7[,4])