標本抽出による群落測定

• 沼田 眞

  千葉大學文理學部 東京文理科大學植物學教室

書誌事項

タイトル別名

• The investigation of vegetation by means of sampling method-Studies on the structute of plant communities V

抄録

1) I investigated the quantitative method analysing vegetation according to the theory of small samples.<BR>2) It is recognized by most investigators that we ought to use the random sampling in our field survey, but we often based its method on subjective randomizaton.<BR>3) Sampling error is controlled by vegetational homogeneity and sampling ratio. And I could not compare several sampling methods by means of sampling error.<BR>4) The best stratification is the worst clusterization. Those order is expressed by coefficient of interclass correlation (ρ') and also the quality of sampling method is decided by the coefficient.<BR>5) The stratification by means of a dominant does not coincide with the one by means of the whole physiognomy.The latter is better.<BR>6) The significance of difference between several sampling methods is indicated by analysis of variance.Relative number of sampling units required for a given accuracy according to samling methods is calculated from average comparable variance.

収録刊行物

• 植物学雑誌

  植物学雑誌 63 (745-746), 149-154, 1950

  公益社団法人 日本植物学会

キーワード

• Plant Science

詳細情報

• CRID: 1390282679200175232
• NII論文ID: 130004076750
• DOI: 10.15281/jplantres1887.63.149
• ISSN: 21853835
• ISSN: 0006808X
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可