Landslides associated with recent road constructions in the Rio Lucma catchment, eastern Cordillera Blanca, Peru

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F22%3A00566880" target="_blank" >RIV/86652079:_____/22:00566880 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scielo.br/j/aabc/a/GQcgLthHZJypZ9ZvVDGvQDj/?lang=en" target="_blank" >https://www.scielo.br/j/aabc/a/GQcgLthHZJypZ9ZvVDGvQDj/?lang=en</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1590/0001-3765202220211352" target="_blank" >10.1590/0001-3765202220211352</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Landslides associated with recent road constructions in the Rio Lucma catchment, eastern Cordillera Blanca, Peru

Popis výsledku v původním jazyce

Extensive road construction works recently took place in the remote eastern part of the Peruvian Cordillera Blanca, aiming at a better connection of isolated mountain communities with regional administrative centres. Here we document and characterize landslides associated with these road construction efforts in the Rio Lucma catchment, Peru. We show that a total area of 321,332 m(2) has been affected by landslides along the 47.1 km of roads constructed between 2015 and 2018. While landslides downslope the roads (48.2%) and complex landslides crossing the roads (46.4%) were the most frequent landslide types in relation to the position of the road, slide-type movement (60.7%) prevails over the flow-type movement (39.3%). Timewise, we found that 75.0% of landslides were observed simultaneously with road construction work, while the remaining 25.0% occurred up to seven months after the roads had been constructed. We plotted the lagged occurrence of these subsequent landslides against precipitation data, showing that 85.7% of them were observed during the wet season (November to April). We conclude that the majority of mapped landslides were directly associated with road constructions and that the road constructions also may set preconditions for landslides, which mainly occurred during the subsequent wet season.

Název v anglickém jazyce

Landslides associated with recent road constructions in the Rio Lucma catchment, eastern Cordillera Blanca, Peru

Popis výsledku anglicky

Extensive road construction works recently took place in the remote eastern part of the Peruvian Cordillera Blanca, aiming at a better connection of isolated mountain communities with regional administrative centres. Here we document and characterize landslides associated with these road construction efforts in the Rio Lucma catchment, Peru. We show that a total area of 321,332 m(2) has been affected by landslides along the 47.1 km of roads constructed between 2015 and 2018. While landslides downslope the roads (48.2%) and complex landslides crossing the roads (46.4%) were the most frequent landslide types in relation to the position of the road, slide-type movement (60.7%) prevails over the flow-type movement (39.3%). Timewise, we found that 75.0% of landslides were observed simultaneously with road construction work, while the remaining 25.0% occurred up to seven months after the roads had been constructed. We plotted the lagged occurrence of these subsequent landslides against precipitation data, showing that 85.7% of them were observed during the wet season (November to April). We conclude that the majority of mapped landslides were directly associated with road constructions and that the road constructions also may set preconditions for landslides, which mainly occurred during the subsequent wet season.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/8J18AT032" target="_blank" >8J18AT032: Je výskyt svahových pohybů v pohoří Cordillera Blanca (Peru) ovlivněn klimatickou oscilací El Niňo??</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Anais Da Academia Brasileira de Ciencias

ISSN

0001-3765

e-ISSN

1678-2690

Svazek periodika

94

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

16

Strana od-do

e20211352

Kód UT WoS článku

000899436000012

EID výsledku v databázi Scopus

2-s2.0-85142837559