Study on Generating Mechanism of Abandoned Cultivated Lands by Natural Disaster in Mountainous Area

Noguchi, Shingo; Nakajima, Kihachiro

doi:10.3130/aija.75.2089

Cited by 1 publication

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Farmland abandonment may be related to severity of disaster damage. For instance, earlier reports indicate higher farmland abandonment after floods and debris flows associated with damaged land and irrigation networks south of Mount Aso (Noguchi and Nakajima 2010). Once land is unmanaged, grassland gradually converts to shrubs and immature forests (Cramer et al 2008;Koyama et al 2017), making conversion back to productive pastureland difficult.…”

Section: Land-use/cover Change Prior To the 2016 Earthquakementioning

confidence: 99%

Ecosystem changes following the 2016 Kumamoto earthquakes in Japan: Future perspectives

Sidle

Gomi

Akasaka

et al. 2017

Ambio

View full text Add to dashboard Cite

Major earthquakes cause widespread environmental and socioeconomic disruptions that persist for decades. Extensive ground disturbances that occurred during the shallow-focus Kumamoto earthquakes will affect future sustainability of ecosystem services west of Aso volcano. Numbers of earthquake-initiated landslides per unit area were higher in grasslands than forests, likely owing to greater root reinforcement of trees, and mostly initiated on ridgelines and/or convex/planar hillslopes. Most landslides traveled short distances and did not initially evolve into debris flows; resultant sediments and wood accumulating in headwater channels can be mobilized into debris flows during future storms. Fissures along ridgelines may promote water ingress and induce future landslides and debris flows that affect residents downstream. Native grasses are at risk because of habitat fragmentation caused by ground disturbances, extensive damage to rural roads, and abandonment of traditional pasture management practices. Sustainable management of affected areas needs to consider future risk of cascading hazards and long-term socioeconomic impacts.

show abstract

Section: Land-use/cover Change Prior To the 2016 Earthquakementioning

confidence: 99%