Document


Title

Effects of post-fire vegetation recovery on soil erosion in vulnerable montane regions in a monsoon climate: a decade of monitoring
Document Type: Journal Article
Author(s): Yoonmi Kim; Chang-Gi Kim; Kyu Song Lee; Yeonsook Choung
Publication Year: 2020

Cataloging Information

Keyword(s):
  • forest fire
  • forest management
  • Pinus densiflora
  • post fire recovery
  • runoff
  • sediment yield
  • soil loss
  • soil stabilization
  • South Korea
  • vegetation cover
  • vegetation regeneration
Region(s):
  • International
Record Maintained By:
Record Last Modified: October 14, 2020
FRAMES Record Number: 62108

Description

In areas with frequent fires and erosive soils under monsoon climate, we aimed to determine the long-term dynamics of soil loss during vegetation recovery and to examine elapsed time for soil stabilization. Runoff plots were installed in Pinus densiflora forests affected by stand-replacing fires on the East Coast of South Korea, which occurred in spring 2000. Runoff plots measured runoff and sediment yields for 11 years (2003-2013) during which time, vegetation cover of low-, intermediate-, and high-vegetation cover plots increased from 21 to 44%, 49% to 69%, and 87% to 95%, respectively. Vegetation was effective in preventing runoff and sediment yield. Nevertheless, to stabilize to below baseline load, it took 7 years at low and intermediate cover plots and only 3 years at high cover plots. For 7 years, 7.06 (5.2-fold) and 4.29 (3.1-fold) kg m−2 of soil were lost at the low and intermediate cover plots, respectively, compared to the high cover plots (1.37 kg m−2). Sediment loss fluctuated more than runoff following extreme rainfall events. We suggest that for the slow recovery area (< 70% cover), appropriate measures should be introduced to prevent soil erosion immediately after a fire, and logging should be postponed until the soil is stabilized for 3 years even in fast recovery areas (> 70% cover).

Online Link(s):
Citation:
Kim, Yoonmi; Kim, Chang-Gi; Lee, Kyu Song; Choung, Yeonsook. 2020. Effects of post-fire vegetation recovery on soil erosion in vulnerable montane regions in a monsoon climate: a decade of monitoring. Journal of Plant Biology online early.