Bulletin of FFPRI, Vol.21 No.4 (No.464) January 2023

Table of Contents

Original article

• Strength properties of Chinese fir timber collected from multiple sites(PDF:1,153KB) [in Japanese with English abstract]
  • Hirofumi IDO, Erina KOJIMA, Hirofumi NAGAO, Hideo KATO, Yukari MATSUMURA and Yosuke MATSUDA
  • DOI：10.20756/ffpri.21. 4_247

Short communication

• The report of Amblyomma testudinarium collected in the Forestry and Forest Products Research Institute premises, Tsukuba(PDF:1,121KB) [in Japanese with English abstract]
  • Kandai DOI
  • DOI：10.20756/ffpri.21.4_261
• Model comparison of object detection algorism YOLO based on the cone detection from the imagery of tree crowns of Abies sachalinensis(PDF:1,191KB) [in Japanese with English abstract]
  • So HANAOKA and Eitaro FUKATSU
  • DOI：10.20756/ffpri.21.4_267

Research record

• Hydrological observation reports of the Kamabuchi Experimental Watershed
  —No. 1, No. 2, No. 3 experimental watersheds— (January 2006 through December 2010)(PDF:1,959KB) [in Japanese with English abstract]
  • Shoji NOGUCHI, Wataru MURAKAMI, Toshio ABE and Ikuhiro HOSODA
  • DOI：10.20756/ffpri.21.4_275
• Statistical report of hydrological data from Kamabuchi Experimental Watershed
   —No. 1, 2, 3 and 4 experimental watersheds (January, 2011 to December, 2016) —(PDF:1,335KB) [in Japanese with English abstract]
  • Tayoko KUBOTA, Shoji NOGUCHI and Toshio ABE
  • DOI：10.20756/ffpri.21.4_305
• Meteorological observations from 1999 to 2018 at the Sapporo forest meteorology research site, Hokkaido, Japan(PDF:1,449KB) [in Japanese with English abstract]
  • Yasuko MIZOGUCHI and Katsumi YAMANOI
  • Supplementary data：Table S1(CSV:2KB), Table S2(CSV:2KB), Table S3(CSV:16KB), Table S4(CSV:1KB), Table S5(CSV:227KB)
  • DOI：10.20756/ffpri.21.4_337
• Data archive of research reports from the government-owned natural forest at the beginning of the Showa era : scanning document and translation to current Japanese for research report of forest vegetation at Ogasawara Islands(PDF:867KB) [in Japanese with English abstract]
  • Hitoshi KATO, Mina MURAO, Hidetoshi KATO, Haruka OHASHI, Kazuto KAWAKAMI and Mitsue SHIBATA
  • Supplementary data：S1(PDF:50,120KB), S2(PDF:1,025KB), S3(PDF:360KB)
  • DOI：10.20756/ffpri.21.4_351