LFDP census 1 species, diameter and location

<p>LFDP census 1 species, diameter and location</p>

Number of Records: 

345

Date Range: 

1990-06-30 to 1993-08-20

Download: 

Variables

Variables: 

TAG
  • Label: LFDP stem tag number
  • Definition: Unique number for each stem.These tags represent individual stems (including each stem on a multiple stemmed plant) not individual plants.Many numbers between-455 to 131126 werenot used.No data is missing in this column.
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
QUAD
  • Label: Quadrat code number
  • Definition: Code represents the 20 x 20 m quadrat based upon its position in the rows and columns of the 16 ha grid. The first 2 digits form the column number counting quadrats from West to East and the second two digits form the row number counting quadrats South to North. Codes include 0101 first quadrat in southwest corner to 2525 last quadrat in North East corner. Leading zeros are not displayed so quadrats in columns 1-9 have only 3 digits. No data is missing in this column.. Code represents the 20 x 20 m quadrat based upon its position in the rows and columns of the 16 ha grid. The first 2 digits form the column number counting quadrats from West to East and the second two digits form the row number counting quadrats South to North. Codes include 0101 first quadrat in southwest corner to 2525 last quadrat in North East corner. Leading zeros are not displayed so quadrats in columns 1-9 have only 3 digits. No data is missing in this column..
  • Type: Nominal
  • Missing values: None specified
SUBQUAD
  • Label: Subquadrat number
  • Definition: Code representing the position each of the 16-5m by 5 m subquadrat within each 20 m x 20 m quadrat. The code consists of 2 numbers. The first is the number of the plot counting from the southwest corner of the quadrat to the east. The second is the number of the subquadrat counting from the southwest corner to the north. See arrangement below:NW 14 24 34 44 NE13 23 33 3412 22 32 42SW 11 21 31 41 SENo data is missing in this column. Code representing the position each of the 16-5m by 5 m subquadrat within each 20 m x 20 m quadrat. The code consists of 2 numbers. The first is the number of the plot counting from the southwest corner of the quadrat to the east. The second is the number of the subquadrat counting from the southwest corner to the north. See arrangement below:NW 14 24 34 44 NE13 23 33 3412 22 32 42SW 11 21 31 41 SENo data is missing in this column.
  • Type: Nominal
  • Missing values: None specified
NEWSPP
  • Label: New species name
  • Definition: A 6 letter code for the species name for this individual. First three letters are the first three letter of the genus and the second three letters the first three letters of the species name. Variations to this rule are possible. See species list file LFDP_species. The species identifications include corrections made after census 2. Blank means no species identification was possible. Dead means tree was dead and no species identification was possible. ING? Means Inga species not determined. A 6 letter code for the species name for this individual. First three letters are the first three letter of the genus and the second three letters the first three letters of the species name. Variations to this rule are possible. See species list file LFDP_species. The species identifications include corrections made after census 2. Blank means no species identification was possible. Dead means tree was dead and no species identification was possible. ING? Means Inga species not determined.
  • Type: Nominal
  • Missing values: None specified
FDIAM
  • Label: Fixed diameter of stems measured in Census 1 (survey 1; 2 and 3)
  • Definition: In file LFDP_treemapC1.txt these are actual diameter measurements on the indicated date. LFDP_treemapC1.txt these diameters were calculated to give the diameter that the stem would have had; if it had not been missed and had been measured in the correct survey for it's size class. Date for each stem in LFDP_treemapC1a.txt means the actual date a diameter was recorded although the diameter was calculated for an earlier time.Precision is0.1 cm; calculated diameters for stemsD10 cm may be given to 0.01 cm.Blank means no data recorded.
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Xm
  • Label: X coordinate
  • Definition: The location of the stem relative to the Southwest corner of the LFDP. Distance in meters East.Precision is + or - 0.5 m in the field (digitizer gives .01 m).Blank means no data recorded.
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.5
  • Missing values: None specified
Ym
  • Label: Y coordinate
  • Definition: The location of the stem relative to the Southwest corner of the LFDP. Distance in meters North.Precision is+ or - 0.5 m in the field (digitizer gives .01 m).Blank means no data recorded.u
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.5
  • Missing values: None specified

Vertical Tabs

Header lines: 

1

Orientation: 

Column

Field delimiter: 

,

Record delimiter: 

\r\n

Related sites: 

Luquillo Forest Dynamics Plot (LFDP)