Disaster Threats in the Gunungsewu Karst Area and Mitigation Efforts in the Framework of Disaster Risk Reduction Review of the Hydrological and Geomorphological Aspects

Wijayanti, Pipit; Noviani, Rita

doi:10.20961/shes.v3i1.45067

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…This process is supported by the factor of the average annual rainfall in this area which is classified as moderate (2,000 m. a year). This rainfall feeds into a solutional process (Wijayanti & Noviani, 2020). The topography of Gunungkidul is undulating, with half of the area sloping >15%, namely the northern zone (Baturagung Hills), and the western, southern, and eastern zones sloping (Gunungsewu Karst Hills) (Bappeda .…”

Section: Hazard Assessmentmentioning

confidence: 99%

Multi-Hazard Analysis in Gunungkidul Regency Using Spatial Multi-Criteria Evaluation

Mustikaningrum,

Widhatama,

Widantara

et al. 2023

For. Geo.

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This study has two aims: to determine the spatial distribution of multi-hazard levels and to discover the interactions, interdependencies, and effects that cascade among hazards in Gunungkidul Regency, Special Region of Yogyakarta. A multi-hazard map was created with a scale of 1:250,000 and modelled using SMCE (Spatial Multi-Criteria Evaluation). The conditioning factors used included slope, rainfall, historical data, river distance, geomorphology, land cover, lithology, and fault distance. The selected conditioning factors for each hazard were then weighted using weighted overlay analysis. The results showed that the area of Gunungkidul can be included in the high-risk category for floods, since the probability of flooding is 56.72%, the probability of landslides is 9.14%, that of drought is 48.86%, and that of seismic disturbance is 20.83%. (Multi-hazard maps are created by overlaying flood, landslide, seismic, and drought hazard maps.) After these risk factors were calculated, the regions on the multi-hazard map were re-categorized into five hazard classes. All areas in Gunungkidul Regency have multiple hazards, with risk factors of different magnitudes. The interaction between hazards can generate new hazards that are called cascading hazards. The cascading hazards in the study area are most likely to occur in the north of Gunungkidul Regency with its very high seismic and landslide hazard risk factors, due to the geological and geomorphological conditions of the Baturagung Structural Hills.

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Section: Hazard Assessmentmentioning

confidence: 99%

Multi-Hazard Analysis in Gunungkidul Regency Using Spatial Multi-Criteria Evaluation

Mustikaningrum,

Widhatama,

Widantara

et al. 2023

For. Geo.

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“…The structure of the karst region has stunning surface and subsurface views due to its interaction with groundwater and surface water systems. Surface groundwater is often found in the form of springs, which supply clean water to communities (Ford Williams, 2007;Stevanović, 2019;Wijayanti, 2020;Wijayanti & Noviani, 2021;Zeng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Toponymy in Karst Areas Giritontro

Wijayanti,

Widiyanti,

Noviani

et al. 2024

geoeco

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<span>Every object in the form of an earth element or man-made feature has a name with various origins. The origins of place names can be categorized based on geography, history, folklore/culture and language so that their spatial distribution can be known. This research explores the spatial distribution of the origins of naming earth elements and man-made features in the Giritontro District. The study begins by identifying the aspects of the earth's appearance and man-made features and then finding the meaning of naming each identified element. Data collection was carried out using in-depth interviews. Determining the sources used the snowball sampling method. The results of the research show that the toponymically identified objects are dominated by man-made features with a spatial distribution of 92% in Giritontro Village, 72% in Pucanganom Village, 52% in Tlogosari Village and 78% in Jatirejo Village. The remainder is dominated by the earth's elements of the Karst Area, such as caves, hills, and springs, with a spatial distribution of Bayemharjo Village at 63%, Ngargojarjo at 53% and Tlogoharjo Village at 66%. Meanwhile, the spatial distribution of toponymy in Giritontro District, whose origin is dominated by language, is known to be spread across Giritontro District with a percentage of 60%. Apart from that, the toponymy found was predominantly geographically dispersed across Pucanganom Village with a portion of 40%, Tlogosari Village at 60%, Jatirejo Village at 61%, Bayemharjo Village at 61%, Ngargoharjo Village at 57% and Tlogoharjo Village 46%. The geographical conditions referred to are those attached to the object or the object's proximity to geographical things (associations) which are dominant in the Karst Area. </span>

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“…Hilly landforms and land slopes also result in soil erosion, leading thin soil and making it difficult to cultivate crops. This may lead to disasters and disturbances which could affect the people's livelihood, such as drought and flooding (Amin et al, 2017;Marfai et al, 2013;Wijayanti & Noviani, 2020).…”

Section: Introductionmentioning

confidence: 99%

Karst of Gunung Sewu Land Use and Land Covers Dynamics: Spatio-Temporal Analysis

Reinhart

Putra²,

Rafida

et al. 2023

For. Geo.

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A study of karst land use and land cover dynamics is critical for managing karst areas, which provide many pivotal services for people. This study aims to study such dynamics, especially in relation to the karst of Gunung Sewu, due to its development as a new emerging sector. Using a mixed methods approach, the study combines spatial data analysis with qualitative analysis. Spatial analysis was performed to examine the dynamic of the land cover derived from 2013 and 2021 Landsat 8 imagery, analyzed with the Google Earth Engine tool, together with analysis of spatial patterns using Global Moran’s I and LISA. The spatial analysis results were complemented by a qualitative analysis of the environmental history and development trends, as an explanatory method. The land cover analysis reveals a conversion from vegetation to agriculture, while the spatial pattern analysis shows that such conversion has mostly taken place in the northern part of the study area of Wonosari Basin. The environmental history of teak forest exploitation and agriculture is key to understanding current land use related to the emerging tourism sector, which is fundamental to the region. To manage the negative impacts, sustainable land use with a firm policy framework urgently needs to be implemented.

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Disaster Threats in the Gunungsewu Karst Area and Mitigation Efforts in the Framework of Disaster Risk Reduction Review of the Hydrological and Geomorphological Aspects

Cited by 4 publications

References 3 publications

Multi-Hazard Analysis in Gunungkidul Regency Using Spatial Multi-Criteria Evaluation

Multi-Hazard Analysis in Gunungkidul Regency Using Spatial Multi-Criteria Evaluation

Spatial Distribution of Toponymy in Karst Areas Giritontro

Karst of Gunung Sewu Land Use and Land Covers Dynamics: Spatio-Temporal Analysis

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