The role of forest stand density in controlling soil erosion: Implications to sediment-related disasters in Japan

Bam H.N. Razafindrabe, Bin He, Shoji Inoue, Tsugio Ezaki, Rajib Shaw

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The role of forest stand density in controlling soil erosion was investigated in Ehime Prefecture, Japan. The main objective was to compare soil erosion under different forest conditions including forest type, species composition, and stand density as influenced by thinning operations. Relative yield index (Ry) was used as an indicator of stand density to reflect the degree of management operations in the watershed. Eleven treatments were established based on the above forest conditions. Soil loss was collected in each of the 11 treatments after each rainfall event for a period of 1 year. The paper presents summary data on soil loss as affected by forest conditions and rainfall patterns. Findings showed that an appropriate forest management operation, which can be insured by stand density control, is needed to reduce soil loss. The present study plays an important role in clarifying technical processes related to soil erosion, while it helps linking these elements to current Japanese forestry issues and bringing new inputs to reducing sediment-related disasters in Japan.

Original languageEnglish
Pages (from-to)337-354
Number of pages18
JournalEnvironmental Monitoring and Assessment
Volume160
Issue number1-4
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

Keywords

  • Forest management
  • Sediment-related disasters
  • Soil erosion
  • Stand density
  • Thinning operation

ASJC Scopus subject areas

  • Environmental Science(all)
  • Pollution
  • Management, Monitoring, Policy and Law

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