Man and tropical karst in Southeast Asia

Uhlig, Harald

doi:10.1007/bf00586753

Cited by 19 publications

(12 citation statements)

References 6 publications

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“…In total, it covers an area of around 1400 km 2 . As a result of the regional lifting the Wonosari formation gently dips southwards with a gradient of *2 % (Uhlig 1980;Haryono and Day 2004). The valleys and depressions between the individual cones are filled with residues from limestone weathering, deeply weathered clay and layers of volcanic ash with a thickness of up to 10 m (Uhlig 1980 ;Waltham et al 1983).…”

Section: Study Areamentioning

confidence: 99%

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Characterization of recharge and flow behaviour of different water sources in Gunung Kidul and its impact on water quality based on hydrochemical and physico-chemical monitoring

et al. 2016

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Karst aquifers are important water resources but highly vulnerable due to their heterogeneous and complex characteristics. Various hydrological aspects (recharge, flow behaviour) have to be known in detail to develop a sustainable concept for water collection, distribution and treatment. In the karst area of Gunung Sewu (Java, Indonesia) such a concept was to be implemented within a German-Indonesian joint IWRM project. The basic hydrogeological conditions and water quality aspects were characterized on a regional scale through hydrochemical monitoring of springs, wells, subsurface and surface rivers. More detailed information about the recharge, flow and storage behaviour was obtained from high resolution monitoring of T, EC and discharge in one large underground river system. The water quality is well below any guideline values with regard to inorganic pollutants during dry season. During rainy season, dissolved Al concentrations are frequently above the Indonesian guideline value. Slow matrix flow is the most important recharge component during dry season, thus assuring the year-round water availability in the subsurface karst. During rainy season, quick infiltration of the surface water is a dominant recharge component. Rapid response of discharge, T and EC to heavy rain suggests the presence of point recharge that feeds a highly karstfied conduit system with fast conduit flow and short transit time of water. The strong variations in discharge and hydrochemistry are particularly challenging for technical water usage and treatment facilities. Piston flow is indicated to be the third important flow component and is induced by heavy rainfall.

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Section: Study Areamentioning

confidence: 99%

“…Along the coast steep cliffs with heights of 25-100 m are often present (Uhlig 1980;Haryono and Day 2004).…”

Section: Study Areamentioning

confidence: 99%

Characterization of recharge and flow behaviour of different water sources in Gunung Kidul and its impact on water quality based on hydrochemical and physico-chemical monitoring

et al. 2016

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“…Crowther (1982) has described the karst of Perak in a series of papers, and Wilford and Wall (1965) have done the same for Sarawak, including a description of limestone pavements and small-scale solution features. Uhlig (1980) has examined the karst landscape of Southeast Asia with regard to economic activities.…”

Section: Karst In Southeast Asiamentioning

confidence: 99%

Physical Geography in Southeast Asia: Past Themes, Current Status and Future Trends

Gupta

Wong

1993

Singap J Trop Geogr

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Our knowledge regarding the physical geography of Southeast Asia is incomplete to a surprising extent. This paper reviews the past research, describes the ongoing work, and attempts to identify the future trends. Coverage of such a large area, even for the last 25 years, requires study of publications in several languages and coping with literature which is not easily available. Therefore certain topics. which are prominent in current research and likely to remain so in the future were chosen and reviewed in detail. Such topics include studies related to active plate margin features; the Pleistocene in Southeast Asia; erosion and sedimentation rates; rainforest; river systems; karst in Southeast Asia; coastal geomorphology; and the urban environment. ( 1993). 'Accelerated sediment production and its effects: examples from Southeast Asia', in C. Briffett & L.L. Sim (eds.), Environmental issues in Development and Conserwtion, Singapore,

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“…Madura Island is located in the Northeastern part of Java, and it comprises an area of 4.382 km 2 (Flathe & Pfeiffer, 1963;Uhlig, 1980). Geologically, the island is a continuation of the limestone mountains from the Northern mainland of East Java (Rifai, 2007;Hefni, 2008).…”

Section: Introductionmentioning

confidence: 99%

New distributional records of Cleome chelidonii L.f. and Cleome rutidosperma DC. (Cleomaceae) in Madura Island

Irsyam

Hariri

Setiawan

et al. 2020

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Calcareous soil and dry climate are characteristic of Madura Island, located on the east coast of Java, Indonesia. The group of flowering plants that adapted to these conditions is the genus Cleome L. (Cleomaceae). In 1963, Backer and Bakhuizen van den Brink Jr. only listed three species of Cleome from Madura, i.e., C. aspera J.König ex DC., C. gynandra L., and C. viscosa L. Since then, the updated data on the genus Cleome of Madura is not provided yet. Therefore, this study aimed to provide updated information on the genus in Madura island. The botanical exploration was conducted at Bangkalan, Sampang, Pamekasan, and Sumenep in December 2019 to January 2020. The two additional species, namely C. chelidonii L.f. and C. rutidosperma DC., were reported for the first time in Madura. Both species were considered as the newly distributional record for the island. Cleome chelidonii was found in Gapura Tengah (Sumenep Regency), and C. rutidosperma was collected from Kamal (Bangkalan Regency). The botanical information on both species is presented, including the updated key to the Cleome of Madura Island. This study provides updated information on genus Cleome in Madura and reporting the existence of Cleome chelidonii and Clome rutidosperma from the island. The presence of both species was considered as a newly distributional record.

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Man and tropical karst in Southeast Asia

Cited by 19 publications

References 6 publications

Characterization of recharge and flow behaviour of different water sources in Gunung Kidul and its impact on water quality based on hydrochemical and physico-chemical monitoring

Characterization of recharge and flow behaviour of different water sources in Gunung Kidul and its impact on water quality based on hydrochemical and physico-chemical monitoring

Physical Geography in Southeast Asia: Past Themes, Current Status and Future Trends

New distributional records of Cleome chelidonii L.f. and Cleome rutidosperma DC. (Cleomaceae) in Madura Island

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