Spatial and temporal hydrochemistry variations of karst water in Gunung Sewu, Java, Indonesia

Adji, Tjahyo Nugroho; Haryono, Eko; Fatchurohman, Hendy; Oktama, Roza

doi:10.1007/s12665-017-7057-z

Cited by 29 publications

(13 citation statements)

References 13 publications

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“…The classification of groundwater as unpolluted water indicates that the source of water flowing into Pindul Cave, especially the Kedung Buntung allogenic river, is included in a good quality water source. Groundwater sources classified as Unpolluted Groundwater and Calcium Enrichment are also found in other karst water sources in the Gunungsewu Karst Area in Gunungkidul Regency and the Jonggrangan Karst Area in Kulonprogo Regency, Special Region of Yogyakarta [26] [28]. The rectangular Piper diagram of Pindul Cave Underground River supports the results of hydrochemical characteristics of the previous discussion (Figure 5).…”

Section: Resultssupporting

confidence: 84%

The Effect of Allogenic Recharge on Multi-Temporal Water Quality Variations in the Pindul Cave Underground River, Gunungkidul

Tastian

Adji

Cahyadi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The Pindul Cave Underground River is a source of water that is used for irrigation, fulfilling domestic needs, and also tourism. The source of water in the Pindul Cave Underground River comes from the surface river flow that enters the ponor (Allogenic Recharge) so that it affects the water quality in the Pindul Cave Underground River. The research was conducted with the aim of temporally analyzing the water quality in the Pindul Cave Underground River. River water samples were taken periodically for one year. Water quality was analyzed by comparing samples from laboratory and field tests with quality standards and hydrogeochemical analysis using triangle piper diagrams and rectangular piper diagrams. The results show that allogeneic affixes have an effect in the form of a relatively fast dilution process in the rainy season, thereby reducing the calcium value. This condition causes the water quality in the rainy season to be better than the dry season because the calcium level decreases and does not exceed the water quality standard. The results are corroborated by triangular and rectangular piper diagram analysis which shows that the water in the Pindul Cave Underground River is classified as calcium enrichment, unpolluted water.

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Section: Resultssupporting

confidence: 84%

The Effect of Allogenic Recharge on Multi-Temporal Water Quality Variations in the Pindul Cave Underground River, Gunungkidul

Tastian

Adji

Cahyadi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…In addition to those mentioned above, another method of identifying karst aquifer characteristics is to analyse the karst spring's response to the recharge (precipitation or concentrated infiltration) that flows via the ponors into the aquifer system. This method is possible because the spring, as an outlet of the karst system, is a feature that encompasses the majority of karst aquifer characteristics and processes (Bonacci 1993;White 2003;Adji & Misqi 2009;Adji 2012;Adji et al 2017). The karst aquifer response is the spring's discharge, while the recharge is the precipitation or concentrated infiltration via the ponors.…”

Section: Introductionmentioning

confidence: 99%

Time series analysis application for karst aquifer characterisation in Pindul Cave karst system, Indonesia

Nurkholis

Adji

Haryono

et al. 2019

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UDC 551.44:556.33(594) Afid Nurkholis, Tjahyo Nugroho Adji, Eko Haryono, Ahmad Cahyadi & Slamet Suprayogi: Time series analysis application for karst aquifer characterisation in Pindul Cave karst system, Indonesia The karst hydrologic system in Pindul Cave can be categorised as 'binary' because it is recharged by the developed cave systems around it and by the Kedungbuntung ponor, which originates from an undeveloped karst system. The main objective of this study is to determine whether there are any differences in the aquifer characteristics that recharge to the Kedungbuntung ponor and the Pindul Cave outlet, using a time-series analysis approach. This analysis was conducted using univariate (autocorrelation) and bivariate (cross-correlation) statistical methods, which analyse data based on the domains of time (timebased analysis) and frequency (frequency-based analysis). Furthermore, the Master Recession Curve (MRC) calculation was conducted to confirm the time-series analysis result. Water level and rainfall data in both locations were recorded every 15 minutes over a six-month period (January-June 2017; N = 17,376). According to the time-series analysis, both locations were recharged by conduit, fissure and diffuse flow components; this observation was also confirmed by the MRC graphs which bore three components of recession. Comparison between the two locations showed that the Pindul outlet releases storage aquifers faster than Kedungbuntung. This condition may be caused by Izvleček UDK 551.44:556.33(594) Afid Nurkholis, Tjahyo Nugroho Adji, Eko Haryono, Ahmad Cahyadi & Slamet Suprayogi: Aplikacija analiz časovnih vrst za karakterizacijo kraškega vodonosnika z jamskim sistemom Pindul, Indonezija Kraški hidrološki sistem jame Pindul lahko označimo kot binarni, saj ga napajajo okoliški razviti jamski sistemi in ponor Kedungbuntung, ki se steka z nerazvitega kraškega sistema. Glavni cilj te študije je z uporabo analiz časovnih vrst ugotoviti, ali obstajajo kakršne koli razlike v značilnostih vodonosnika, ki napaja ponor Kedungbuntung, in tistim, ki napaja jamo Pindul. Ta analiza je bila izvedena z uporabo univariatnih (avtokorelacijskih) in bivariatnih (navzkrižno korelacijskih) statističnih metod, ki analizirajo podatke na podlagi časovnih in frekvenčnih vrst. Za potrditev rezultatov analiz časovnih vrst smo izvedli tudi izračun glavnih recesijskih krivulj (GRK). Vsakih 15 minut v šestmesečnem obdobju (januar-junij 2017; N = 17.376) so bili na obeh lokacijah zabeleženi podatki o vodostajih in padavinah. Glede na analizo časovnih vrst obe lokaciji napajajo komponente kanalskega, razpoklinskega in difuznega toka; to opažanje so potrdili tudi grafi GRK, ki kažejo na tri recesijske komponente. Primerjava med obema lokacijama je pokazala, da jama Pindul hitreje sprosti uskladiščeno vodo kot Kedungbuntung, kar je posledica kompleksnega kraškega sistema v kombinaciji z napajanjem iz ponora Kedungbuntung. Hkrati pa medsebojna korelacija praznjenja za

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“…The impact of physical conditions that are geologically located on the geological structure of Karst, resulted in the geomorphological condition of the research area in the form of hilly and undulating land. Karst areas are characterized by drought in the dry season [30]. This happens because the structure above the rock causes rainwater to not be accommodated on the surface for a long time.…”

Section: Topography and Geomorphologymentioning

confidence: 99%

Preliminary study: potential of tropical forest and coastal area for eco-edutourism on pesanggrahan beach, Malang Regency

Insani,

Purwanto,

Rochman

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The purpose of this preliminary study is to investigate and explore the potential that exists in the Pesanggrahan Coastal Forest area for eco-educational planning. The indicators of this preliminary study are divided into three: the potential of tropical forests, the potential of coastal areas, and the potential of socio-economic conditions. This study was carried out along the coast. and Pesanggrahan Forest, administratively located in Srigonco Village, Bantur District, Malang Regency. Analysis of the potential of coastal areas using the Tourism Suitability Index with conditional results for coastal tourism. These results indicate that from a preliminary study of the potential of the Pesanggrahan Coastal Forest area suitable for eco-educational planning, it is supported by other potentials in the form of potential socio-economic conditions, physical and biophysical potentials.

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Spatial and temporal hydrochemistry variations of karst water in Gunung Sewu, Java, Indonesia

Cited by 29 publications

References 13 publications

The Effect of Allogenic Recharge on Multi-Temporal Water Quality Variations in the Pindul Cave Underground River, Gunungkidul

The Effect of Allogenic Recharge on Multi-Temporal Water Quality Variations in the Pindul Cave Underground River, Gunungkidul

Time series analysis application for karst aquifer characterisation in Pindul Cave karst system, Indonesia

Preliminary study: potential of tropical forest and coastal area for eco-edutourism on pesanggrahan beach, Malang Regency

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