About this Dataset

Tree Habitat - Spears And Didion Ranches [ds321]

These data are the summary statistics calculated for trees and snags from the three 0.05-ha circular plot habitat samples taken in 2005 each at the 15 sample points at Spears and Didion Ranches, Placer County, California. There were three 0.05-ha circular habitat sampling plots at each of the 15 sample points. To be counted, trees had to be > 4" dbh and within the 12.6 m radius plot, while snags had to be > 4" dbh and > 9.8 ft tall and within the plot.
Organization: State of California
Last updated: 2025-07-23T22:17:32.610210
Tags: auth_cdfw, basal-area, california-department-of-fish-and-wildlife, california-natural-resources-agency, caopendata, cdfw, conifers, distribution, ds0321_20090702_wm, habitat-attributes, hardwoods, management, placer-legacy-program, planning, plant, quadratic-mean-density, sample, size-distribution, snags, tree-density, tree-numbers-abundance, tree-size

Tables

Table 1

@usgov.ca_gov_tree_habitat_spears_and_didion_ranches_ds321_2a72b.table_1

25.4 kB
41 rows
32 columns


CREATE TABLE table_1 (
  "x" DOUBLE,
  "y" DOUBLE,
  "objectid" BIGINT,
  "latdd" DOUBLE,
  "londd" DOUBLE,
  "point_plot" VARCHAR,
  "num_trees" BIGINT,
  "ave_dbh_tr" VARCHAR,
  "num_ht_tre" BIGINT,
  "ave_ht_tre" VARCHAR,
  "qmd_tree" VARCHAR,
  "trees_ac" DOUBLE,
  "tree_ba_ac" DOUBLE,
  "num_hwd" BIGINT,
  "ave_dbh_hw" VARCHAR,
  "num_ht_hwd" VARCHAR,
  "ave_ht_hwd" VARCHAR,
  "qmd_hwd" VARCHAR,
  "hwd_ac" DOUBLE,
  "hwd_ba_ac" DOUBLE,
  "num_conif" BIGINT,
  "ave_dbh_co" VARCHAR,
  "num_ht_con" VARCHAR,
  "ave_ht_con" VARCHAR,
  "qmd_conif" VARCHAR,
  "conifer_ac" DOUBLE,
  "conf_ba_ac" DOUBLE,
  "num_snags" BIGINT,
  "ave_dbh_sn" VARCHAR,
  "qmd_snags" VARCHAR,
  "snags_ac" DOUBLE,
  "snag_ba_ac" DOUBLE
);