Fractal sampling point nesting

This dataset contains a table showing the nesting of sampling points within the fractal sampling design at the SAFE project and an R code file used to create the nesting from a GIS file of the core sampling locations.

There are five fractal levels across 17 sites: six experimental blocks (A-F), two edge transects (LFE, VJR) and three sets of triplets of sites to sample specific habitats (Old growth: OG1 - 3, Oil palm: OP1 - 3, Twice logged forest: LF1 - 3). Within each site, there are sampling points at five fractal scales with fractal order 1 as the smallest scale and fractal order 5 being the largest scale. This file identifies the child - parent relationships of points across the fractal sampling levels. For more details, see https://www.safeproject.net/dokuwiki/safe_gis/safe_fractal.

Project: This dataset was collected as part of the following SAFE research project: SAFE CORE DATA

XML metadata: GEMINI compliant metadata for this dataset is available here

Files: This dataset consists of 2 files: Fractal_point_nesting.xlsx, Nested_fractal_table_maker.R

Fractal_point_nesting.xlsx

This file contains dataset metadata and 1 data tables:

1. Fractal sampling point nesting (described in worksheet Fractal_point_nesting)

   Description: This table contains one row for each fractal order 1 sampling point (finest scale) and then identifies the parent sampling points at the higher fractal scales (2-5). Note that not all sites have a central fractal order 5 point.

   Number of fields: 9

   Number of data rows: 579

   Fields:

   • Site: Site ID prefix (Field type: ID)
   • Habitat: Focal habitat of sampling site (Field type: Categorical)
   • Logging: Logging history of sampling site (Field type: Categorical)
   • Frag_Area: Estimated area of fragment (Field type: Numeric)
   • FirstOrder: First order fractal point (Field type: Location)
   • SecondOrder: Second order fractal parent (Field type: Location)
   • ThirdOrder: Third order fractal parent (Field type: Location)
   • FourthOrder: Fourth order fractal parent (Field type: Location)
   • FifthOrder: Fifth order fractal parent (not applicable for all sites) (Field type: Location)

Nested_fractal_table_maker.R

Description: This R code creates the table stored in Fractal_point_nesting from the SAFE Core sampling stations GIS layer.

Date range: 2010-01-01 to 2020-01-01

Latitudinal extent: 4.6350 to 4.7716

Longitudinal extent: 116.9474 to 117.7031