Mapping of First-Frost Days and Risk of Forst Damage to Soybeans

Ryoji Sameshima, Tomoyoshi Hirota, Takahiro Hamasaki

研究成果: Contribution to journalArticle

1 引用 (Scopus)

抜粋

Statistically expected early first-frost days with return periods from 2 to 30 y (EFFDk, where k represents the return period) were calculated by fitting frost records obtained at weather stations to the Weibull distribution function. To create 1 km2 mesh maps of EFFDk, a method to estimate EFFDkwas developed by relating k to the normals of daily minimum air temperature (Tm). An equation to calculate the probability of occurrence of the first frost before day x ((P (X ≤ x)) from Tm was derived. Risk of early first-frost damage to soybeans was defined as (P (X ≤ maturity day). Day of maturity was estimated with existing soybean developmental models, and risk maps of first-frost damage to soybeans were created.

元の言語英語
ページ(範囲)25-32
ページ数8
ジャーナルjournal of agricultural meteorology
63
発行部数1
DOI
出版物ステータス出版済み - 9 1 2007
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Atmospheric Science

フィンガープリント Mapping of First-Frost Days and Risk of Forst Damage to Soybeans' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用