Table 3 Frequency ratio values for conditioning factors

Lithology

36.865360

 a: Andesite with oligoclase–andesine, augite, hypersthene, and hornblende

0.00106

4.8679

 ab: Andesite and Basalt

0

0

 ha: Hornblende andesite

0

0

 l aut: mainly stream deposits

0

0

 qd: Quart diorite

0

0

 Tmcb: polymict breccia with fragments of basalt–andesite and coralline limestone

0.00135

6.19169

 Qvb: Volcanic breccia (Breccia, andesitic–basaltic, locally agglomerate)

0.00113

5.18582

 Qvk: Blocks of andesitic tuff and andesitic breccia with abundant pyroxene phenocrysts and basaltic lava

0.0008

3.69039

 Qvas: Sudamanik formation, andesite

0.00077

3.51564

 Qvt: Pumiceous tuff

0.00072

3.29186

 Qvpo: Older deposits, lahar and lava, andesitic basalt, with oligoclase-andesine, labradorite, olivine, pyroxene, and hornblende

0.00051

2.34829

 Msc: Mainly claystone containing beds and modules of hard marly limestone, marl, and dark gray limestone

0.00031

1.41181

 Qpv: Endut volcanics (volcanic breccia, lava, and tuff)

0.00026

1.20164

 Tmtb: Tuff and Breccia: Pumiceous tuff, tuffaceous breccia (andesitic), tuff sandstone, tuffaceous clay with silicified wood and plant remains

0.00021

0.95334

 Qv: Volcanic breccia, agglomerate and tuff

0.00021

0.95057

 Tmj: Jatiluhur formation (marl and clayey shale, and quartz sandstone intercalation)

0.0002

0.91312

 Qvsb: Lahar, tuffaceous breccia and lapilli, basaltic andesite in composition

0.00016

0.73701

 Tmb: Bojongmanik formation (sandstone, pumiceous tuff, marl with molluscs, limestone, claystone with bituminous clay and lignite intercalations and resin fragments

0.00013

0.60174

 Qav: Alluvium fans (mainly silt, sandstone, gravel and boulders from Quaternary volcanic rocks)

0.00012

0.53492

 Qvst: Sandy pumiceous tuff

0.0001

0.46962

 Tpg: Kaliglagah formation, consists of coarse sandstone, conglomerate, claystone and marl

0

0

 Qa: Alluvium (clay, silt, gravel and boulders)

0

0

 Qos: Tuffaceous sandstone and conglomerate

0

0

 Tmk: Klapanunggal formation, mainly reefal limestone with foraminifers, molluscs and echinoderms

0

0

 Qvsl: Lava flow, basaltic andesite with pyroxene

0

0

 Qoa: Older alluvium (river conglomerates and sands of andesitic and basaltic composite)

0

0

 Mdm: Jatiluhur formation, marl and quartz sandstone

0

0

 Qaf: Clayey sand and peaty clay (floodplain deposits)

0

0

 Tmbc: Bentang formation (tuffaceous sandstone with pumice and lignite, tuffaceous marl, tuffaceous shale, and calcareous conglomeratic breccia)

0

0

 Qvep: Gunung Endut-Prabakti Lava, containing oligoclase-andesine, hypersthene and hornblende

0

0

 Qvl: Volcanic lava (lava flow) basaltic with labradorite, pyroxene, and hornblende

0

0

 Tmkt: Tuff (tuffaceous breccia, tuffaceous sandstone, tuffaceous claystone)

0

0

 Qvba: Basalt lava flow of Gegerbentang mountain

0

0

 Tpss: Alternating conglomerate, sandstone, siltstone, and claystone with plant material–pumice conglomerate, pumice tuff

0

0

 Tms: Saraweh formation, claystone, sandstone, marl, and tuff

0

0

 Tmrs: Rengganis formation, fine–coarse-grained sandstone, conglomerate and claystone

0

0

 Tmbl: Limestone member of the Bojongmanik formation, containing molluscs

0

0

 Tmqd: Quartz diorite, quartz monzonite, micro quartz diorite, diorite and gabbro

0

0

 Tmpb: Bentang formation (tuffaceous sandstone, sandstone, calcareous sandstone, conglomerate, volcanic breccia, tuff, tuffaceous claystone, tuff breccia, calcareous breccia, limestone, claystone, lignite intercalations)

0

0

 Tmc: Cimandiri formation, interbedded light to medium gray claystone and siltstone, and yellowish sandstone in places calcareous

0

0

 Tmda: Dacite

0

0

 Tmp: Pemali formation (globigerina marls, bluish gray and grayish green)

0

0

 Tma: Andesite, hornblende andesite, hypersten andesite, basalt, diabase and propylitized andesite

0

0

 Tba: Andesite

0

0

 Qbr: Coarse sand with mollusc shell

0

0

 Mttc: Cantayan formation, claystone, tuffaceous shale

0

0

 Mttb: Cantayan formation, polymict breccia with basaltic, andesitic, and coralline limestone components

0

0

Slope gradient

8.06515

 Flat (percentage 0–3 %, slope degree < 2)

0.00009

0.43248

 Undulating (percentage 3–8 %, slope degree 2–5)

0.0001

0.46794

 Moderately sloping (percentage 8–15 %, slope degree 5–8)

0.00014

0.63905

 Hilly (percentage 15–30 %, slope degree 8–17)

0.00028

1.27401

 Moderately steep (percentage 30–45 %, slope degree 17–24)

0.00026

1.22088

 Steep (percentage 45–65 %, slope degree 24–33)

0.0005

2.31438

 Very steep (percentage > 65 %, slope degree > 33)

0.00037

1.71641

Slope aspect

9.99447

 South

0.00039

1.78496

 Southwest

0.00027

1.23683

 East

0.00027

1.22672

 Northeast

0.00023

1.06876

 North

0.00022

1.00247

 West

0.00021

0.95732

 North

0.00019

0.90534

 Northwest

0.00019

0.85251

 Southeast

0.00011

0.51410

 Flat

0.0001

0.44546

Land cover

14.32469

 Shrubs

0.00179

8.20867

 Settlement

0.00033

1.50563

 Plantations

0.00024

1.10749

 Dryland agriculture

0.00024

1.10467

 Mixed dryland agriculture with shrubs

0.00023

1.07265

 Industrial plantation forest

0.00016

0.72228

 Secondary dryland forest

0.00011

0.52795

 Rice fields

0.00002

0.07535

 Primary dryland forest

0

0

 Mining

0

0

 Open land

0

0

 Water bodies

0

0

Soil

17.01816

 Latosols

0.00095

4.35546

 Association of reddish brown latosols and brown latosols

0.00066

3.04567

 Yellow podzolic soils

0.00049

2.23456

 Complex of yellowish red latosols, reddish brown latosols and litosols

0.0004

1.82476

 Association of brown latosols and yellowsih brown latosols

0.00037

1.69376

 Complex of yellowish red latosols and yellowish red podzolic soils

0.00025

1.12744

 Association of brown latosols and regosols

0.00023

1.04039

 Andosols

0.00017

0.77577

 Yellowish red podzolic soils

0.00016

0.75258

 Alluvial soils

0.00002

0.09532

 Association of red latosols, reddish brown latosols

0.00002

0.07245

 Grumusols

0

0

 Red podzolic soils

0

0

 Regosols

0

0

 Association of andosol and regosols

0

0

 SNG

0

0

 Association of yellow podzolic and gray hydromorphic soils

0

0

Distance to lineament

7.59769

 0–250

0.00007

0.31240

 250–500

0.0003

1.37701

 500–750

0.00049

2.23266

 750–1000

0.00047

2.17185

 1000–1250

0.00031

1.50377

 1250–1500

0

0

 1500–1750

0

0

 1750–2000

0

0

 2000–2250

0

0

 2250–2500

0

0

 2500–2750

0

Rainfall intensity

5.12200

 > 5000 mm/year

0.0003

1.38266

 4000–5000 mm/year

0.00034

1.58019

 3500–4000 mm/year

0.0003

1.37172

 3000–3500 mm/year

0.00014

0.63926

 2500–3000 mm/year

0.00003

0.14817

 < 2500 mm/year

0

0