Correction: Microbial community structure and functional potential of lava-formed Gotjawal soils in Jeju, Korea

Abstract

Chemical properties of Gotjawal soil samples. https://doi.org/10.1371/journal.pone.0211435.t001 Supporting information Showing 1/1: pone.0211435.s001.doc Site description Gotjawal forests are located along the east-west axis of Jeju Island, Korea. (3) Jocheon-Hamdeok (JH), JH Dongbaekdongsan (JHDK) is located in the northeast region of Jeju at 90–150 m a.s.l. This area is primarily formed from mixtures of ’A’a Lava and Pahoehoe Lava rocks, which allow rainwater to retain under Gotjawal forests and contribute to a higher rate of groundwater recharge as one of main groundwater sources for Jeju people. The whole Gotjawal areas have fewer stream systems than non-Gotjawal areas in Jeju, whereas the areas play a substitution role of streams because the formation of Gotjawal forest on basalt flow lava rocks is not able to lead to the formation of figshare Download Site description and Jeju Island.

S1 File is omitted from the list of Supporting Information. It can be viewed below.

There are errors in Table 1. In column HACS-1, row Fe, the value should read: 17127.67. In column HACS-1, row Al the value should read: 9505.00 Please see the corrected Table 1 here.

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Table 1. Chemical properties of Gotjawal soil samples.

https://doi.org/10.1371/journal.pone.0211435.t001

Supporting information

Showing 1/1: pone.0211435.s001.doc

Site description

Gotjawal forests are located along the east-west axis of Jeju Island, Korea. Most

forests occur in inland areas at altitudes of 200 to 400 m. Gotjawal forests tend to

form a zone between inhabited coastal areas and mountainous regions used for

grazing livestock.

Four major Gotjawal forests are spread across Jeju Island,

separated by Mount Hallasan (1,950 m) in the middle of the island (Fig.

1

).

These 4

forests have been preserved well, specifically (1) Hankyeong-Andeok (HA), HA

Gotjawal is located in the southwest region of Jeju at 70–350 m above sea level

(a.s.l.). This region was formed by Pahoehoe Lava, except for the HA Dorneri

(HADNR) Gotjawal, which was formed from ‘A’a Lava. The dominant tree species is

ring-cupped Oak (

Quercus glauca

Thunb

.

) in subtropics evergreen broad-leaved

forests. In comparison, the HADNR Gotjawal is a secondary deciduous broad-leaved

forest. Japanese Hackberry (

C. sinensis

Pers

.

) and

Styrax japonicus

Siebold ex

Nees dominate the temperate broad-leaved forest at 400 m a.s.l. However, the HA

Jeoji (HAJJ), Cheongsu (CS), and Sanyang (SY) Gotjawal are collapsed trenches.

(2) Aewol(AW), AW Nokome (AWNKM), and AW Sangbu (AWSB) Gotjawals are

located on ‘A’a Lava in the northwest region of Jeju, at 400–600 m a.s.l. These two

Gotjawals are characterized by subsidence process. Following lava flow, a cave

formed, whose surface collapsed, creating a lava subsidence (S1

Fig

). These

Gotjawals contain secondary deciduous broad-leaved forests, dominated by Mono

maple (

Acer pictum

subsp.

mono

) and Japanese Hackberry (

C. sinensis

) in a

temperate climate. (3) Jocheon-Hamdeok (JH), JH Dongbaekdongsan (JHDK) is

located in the northeast region of Jeju at 90–150 m a.s.l. This area is primarily

formed from mixtures of ’A’a Lava and Pahoehoe Lava rocks, which allow rainwater

to retain under Gotjawal forests and contribute to a higher rate of groundwater

recharge as one of main groundwater sources for Jeju people. Ring-cupped Oak (

Q.

glauca

) and

Castanopsis sieboldii

are the dominant vegetation, forming a subtropics

evergreen broad-leaved forest. This region is characterized as domed-shaped

inflated tumulus formed on cooling Pahoehoe Lava surface, which forms among Jeju

Gotjawals. The site also contains a unique area of endemic

Mankyua jejuense

,

supporting a variety of recently discovered rare plant genera. JH Gyorae (JHKR) is

located in the northeast region of Jeju at 400 m a.s.l., on ‘A’a

Lava. The forest has

developed a unique micro-landscape, including lava subsidence from a pocket-

shaped collapse to the lower level of 15 m deep and 30 to 60 m wide (S

1 Fig

).

The

vegetation in this area is mainly secondary deciduous broad-leaved trees, growing in

a temperate climate. Dominant species include

Celtis sinensis

Pers,

Styrax

japonicus

Siebold & Zucc

,

Zelkova serrata

Thunb. Makino

, and

Acer palmatum

Thunb. ex Murray

(Maple). The dominant herb layer species is

Arachniodes

standishii

(T. Moore)

Ohwi

. (4) Gujwa-Seongsan (GS), GS Dunji (GSDG), and GS

Baekyagi (GSBY) are located in the eastern region of Jeju, at 150–250 m a.s.l. The

site is characterized by a large subsidence formation. GSDG is formed from

Pahoehoe Lava, while GSBY is formed from mixed ‘A’a Lava and Pahoehoe Lava.

Dominant tree species in the forest include Sericeous Newlitse (

Neolitsea sericea

)

and Japanese Cinnamon (

Cinnamomum japonicum

Siebold ex Nees), forming a

subtropics evergreen broad-leaved forest.

AW is highest site, with both temperate

and warm-temperate vegetation. JH also has both temperate and subtropics

vegetation, within which

JHDK

was designated as a Ramsar wetland site in 2011.

The whole Gotjawal areas have fewer stream systems than non-Gotjawal areas in

Jeju, whereas the areas play a substitution role of streams because the formation of

Gotjawal forest on basalt flow lava rocks is not able to lead to the formation of

figshare

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Site description and Jeju Island.

(DOC)

S1 File. Site description and Jeju Island.

https://doi.org/10.1371/journal.pone.0211435.s001

(DOC)

References

1. Kim J-S, Kim D-S, Lee KC, Lee J-S, King GM, Kang S (2018) Microbial community structure and functional potential of lava-formed Gotjawal soils in Jeju, Korea. PLoS ONE 13(10): e0204761. https://doi.org/10.1371/journal.pone.0204761 pmid:30312313