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Identification of Environment Chase in Surround of Sermo Reservoir; and the Inï¬uence Possibility for Function and at the Age of Reservoi Sudarmadji, Sudarmadji
Forum Geografi Vol 16, No 1 (2002)
Publisher : Forum Geografi

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Sermo reservoir is the only one belongs to Yogyakarta Special Province; it is relatively a new reservoir with the area of 1.9 kilometer square and its capacity of 25 million cubic meter: It started to operate since 1996 as flood control, irigation, water supply, tourism and ï¬shery purposes. As a reservoir it could be considered to be a manmade lake, as its condition nearly similar to a lake. Since it operated (even during construction period) there were some significant environmental changes within the reservoir and in the area around the reservoir due to the human activities. These changes could threat the sustainability of the reservoir itselfThis research aims to identiï¬r the human activities living around the reservoir and visitors coming to the area, and to evaluate the potensial of the activities to produce wastes which is discharging in into the reservoir; which may threat the sustainability of the reservoir: The observatorium in the ï¬eld has been conducted in the area of the reservoir and its sorrounding. I t was ï¬rund ï¬om the observation that activities o f ï¬shery using net (karamba), tourism altogether with its facilities, land use around the reservoir for agriculture purposes, mining of class C ore, have given a lot of contribution to wastes (liquid and solids) and sediments into the reservoir: Those activities may cause water quality of the reservoir lo decrease as well as reducing the reservoir depth. Those situation was observed in the northern and north western parts of the reservoir Water quality degradation of the reservoir may threat reservoir as source of domestic water supply, while the sedimentation may reduce the life time of the reservoir The fishery and tourism activities was estimated as a main cause of water quality degradation, beside agricultural and domestic wastes originated from sattlement area around the reservoir: Sediments coming into the reservoir are derived ï¬om transported and movement of materials from land slide occuring around the reservoir; due to distruction of land in constructing the relatively new ring-road close to the shore line of the reservoir: Of course, the sediment is also coming from rivers enteringdie reservoir. Sermo reservoir is a relatively young reservoir; the early observation of environmental changes of the reservoir could hopely be used as indicator to study ecological changes of the area within and around of the reservoir; and could be used as a comparison to other reservoirs, as well as basic environmental management of the reservoir and its surrounding.

Changes of Groundwater Quality in the Sorrounding Pollution Sources Due to Earthquake Dissaster Sudarmadji, Sudarmadji
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

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Groundwater is the main domestic water supply of the population of the Yogyakarta Special Region, both in the urban and as well as in the rural area due to its quantity and quality advantages. The rapid population growth has caused an increase of groundwater demand, consequently it is facing some problems to the sustainability of groundwater supply. Lowering of groundwater level has been observed in some places, as well as the degradation of groundwater quality. Earthquake which stroke Yogyakarta on 27 May 2006, damaged buildings and other infrastructures in the area, including roads and bridges. It might also damage the underground structures such as septic tanks, and pipes underneath the earth surface. It might cause cracking of the geologic structures. Furthermore, the damage of underneath infrastructures might create groundwater quality changes in the area. Some complains of local community on lowering and increasing groundwater level and groundwater quality changes were noted. Field observation and investigation were conducted, including collection of groundwater samples close to (the) pollution sources. Laboratory analyses indicated that some parameters increased to exceed the drinking water quality standards. The high content of Coli form bacteria possibly was caused by contamination of nearby septic tanks or other pollution sources to the observed groundwater in the dug well.

Changes of Groundwater Quality in the Sorrounding Pollution Sources Due to Earthquake Dissaster Sudarmadji, Sudarmadji
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i2.1813

Groundwater is the main domestic water supply of the population of the Yogyakarta Special Region, both in the urban and as well as in the rural area due to its quantity and quality advantages. The rapid population growth has caused an increase of groundwater demand, consequently it is facing some problems to the sustainability of groundwater supply. Lowering of groundwater level has been observed in some places, as well as the degradation of groundwater quality. Earthquake which stroke Yogyakarta on 27 May 2006, damaged buildings and other infrastructures in the area, including roads and bridges. It might also damage the underground structures such as septic tanks, and pipes underneath the earth surface. It might cause cracking of the geologic structures. Furthermore, the damage of underneath infrastructures might create groundwater quality changes in the area. Some complains of local community on lowering and increasing groundwater level and groundwater quality changes were noted. Field observation and investigation were conducted, including collection of groundwater samples close to (the) pollution sources. Laboratory analyses indicated that some parameters increased to exceed the drinking water quality standards. The high content of Coli form bacteria possibly was caused by contamination of nearby septic tanks or other pollution sources to the observed groundwater in the dug well.

Identification of Environment Chase in Surround of Sermo Reservoir; and the Inï¬uence Possibility for Function and at the Age of Reservoi Sudarmadji, Sudarmadji
Forum Geografi Vol 16, No 1 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v16i1.410

Sermo reservoir is the only one belongs to Yogyakarta Special Province; it is relatively a new reservoir with the area of 1.9 kilometer square and its capacity of 25 million cubic meter: It started to operate since 1996 as flood control, irigation, water supply, tourism and ï¬shery purposes. As a reservoir it could be considered to be a manmade lake, as its condition nearly similar to a lake. Since it operated (even during construction period) there were some significant environmental changes within the reservoir and in the area around the reservoir due to the human activities. These changes could threat the sustainability of the reservoir itselfThis research aims to identiï¬r the human activities living around the reservoir and visitors coming to the area, and to evaluate the potensial of the activities to produce wastes which is discharging in into the reservoir; which may threat the sustainability of the reservoir: The observatorium in the ï¬eld has been conducted in the area of the reservoir and its sorrounding. I t was ï¬rund ï¬om the observation that activities o f ï¬shery using net (karamba), tourism altogether with its facilities, land use around the reservoir for agriculture purposes, mining of class C ore, have given a lot of contribution to wastes (liquid and solids) and sediments into the reservoir: Those activities may cause water quality of the reservoir lo decrease as well as reducing the reservoir depth. Those situation was observed in the northern and north western parts of the reservoir Water quality degradation of the reservoir may threat reservoir as source of domestic water supply, while the sedimentation may reduce the life time of the reservoir The fishery and tourism activities was estimated as a main cause of water quality degradation, beside agricultural and domestic wastes originated from sattlement area around the reservoir: Sediments coming into the reservoir are derived ï¬om transported and movement of materials from land slide occuring around the reservoir; due to distruction of land in constructing the relatively new ring-road close to the shore line of the reservoir: Of course, the sediment is also coming from rivers enteringdie reservoir. Sermo reservoir is a relatively young reservoir; the early observation of environmental changes of the reservoir could hopely be used as indicator to study ecological changes of the area within and around of the reservoir; and could be used as a comparison to other reservoirs, as well as basic environmental management of the reservoir and its surrounding.

KEANEKARAGAMAN SPESIES KUPU-KUPU (LEPIDOPTERA:RHOPALOCERA) DI SAVANA PRINGTALI RESORT BANDEALIT TAMAN NASIONAL MERU BETIRI Setiawan, Rendy; Siddiq, Arif Mohammad; sudarmadji, Sudarmadji; Wulansari, Nindy Agusti
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 5, No 2 (2019): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Butterfly is the insect that the existence is determined by the ability of their distribution and adaptation towards the environmental factor. The decrease of the plant species diversity in a habitat will affect the diversity of the butterfly species. One of the buterflies habitat which experinces the degradation of species diversity is Resort Bandealit which some parts of the region are designated as the habitat of Invasive plants. The aim of this study is to know the composition and diversity of butterfly species in the pringtali Savannah Resort Bandealit Meru Betiri national park. The method used in the data collection is the road sampling method. The road sampling method is done by walking and counting spesimen which were collect by active collection. Exploration is carried out by walking along the five cruise lines with a length of each path is 100 m in Savana Pringtali Meru Betiri National Park. The composition and diversity species of butterfly is a 11 species represented from 3 family and 10 genus. The four most common species of butterflies found in the study area are Jamides pura, Ypthima Philomela, Leptosia nina, and Eurema hecabe.

Usate of Filter Tube to Reduce Pb, Turbidity And Increase pH of Rain Water Flowing Through Zinc Rooftop House Khayan, Khayan; Husodo, Husodo; Sudarmadji, Sudarmadji; Sugandawaty, Sugandawaty
KEMAS: Jurnal Kesehatan Masyarakat Vol 13, No 1 (2017)
Publisher : Department of Public Health, Faculty of Sport Science, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kemas.v13i1.9077

Pb contained in rain water comes from zinc rooftop, beside that, it comes from the pollutant dissolved and comes into rain water reservoir and is used for community drinking water source. This research objective is to evaluate Pb, pH and turbidity of rain water before and after process and to analyze efectivity of shell sand filtration and activated carbon absorbtion in the filter tube to decrease Pb and turbidity and increase pH of rain water. This research is an experiment with pre and post test design with control and observational with cross sectional design. It is conducted in Pontianak and Kubu Raya West Kalimantan in 2016 with two target regions which represent urban and rural ones. The result indicated that average lead (Pb) contained in rain water and turbidity process is high with 131.7 Âµg/l and 20 NTU and pH is low with 5.2. After process, Pb become 0.71 Âµg/l and turbidity become 5.66 NTU while pH increases to 6.9. The effectivity of filter tube to reduce lead (Pb) contained in rain water is 99.4% and to reduce turbidity is 72%.

The Species Diversity and Structure of The Limited Production Forest in Arui Watershed of Manokwari District of West Papua, Indonesia Mahmud, Mahmud; Kusumandari, Ambar; Sudarmadji, Sudarmadji; Supriyatno, Nunuk
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 2 (2019): August 2019
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v11i2.16340

The detailed causal factors of flood have not been established, whether because of the damage of upper watershed, sedimentation resulting in shallow river, forest conversion, the decrease in abundance and structure or high rainfall. The study aimed at finding out the species diversity and structure of the limited production forest (LPF) from the seedling to the tree stage of Arui watershed in Manokwari district. The species diversity was determined based on Shannon-Wiener index, while vegetation structure was determined based on Importance Value Index. There were totally 92 plots of samples drawn using systematic sampling. The results of vegetation analysis showed that there were 174 species of 43 families with the species diversity of 1.5-1.8 that was categorized as moderate. The four dominant species that were always found in seedling, sapling, pole and tree stages included: Pometia pinnata, Teijsmanniodendron bogoriense, Chisocheton ceramicus, and Horsfieldia irya. The conversion of the LPF into non-forestry sector for the purpose of accelerating development must be reviewed by considering hydrology, land, biodiversity, and social and regional aspects in order to prevent and to reduce flood in the coming days.

KARAKTERISTIK FISIK LAHAN AKIBAT ALIH FUNGSI LAHAN HUTAN RAWA GAMBUT Nusantara, Rossie Wiedya; Sudarmadji, Sudarmadji; Djohan, Tjut S.; Haryono, Eko
Perkebunan dan Lahan Tropika Vol 2, No 2 (2012): PERKEBUNAN DAN LAHAN TROPIKA
Publisher : Fakultas Pertanian Universitas Tanjungpura

Tujuan penelitian ini adalah mengamati karakteristik serasah dan biomasa tanaman pada lima tipe lahan (hutan rawa gambut primer-HP, hutan gambut sekunder-HS, semak belukar-SB, kebun sawit-KS, kebun jagung-KJ), seperti berat basah, berat kering, kadar air, kadar abu, C-organik dan kandungan C, sebagai dampak perubahan penggunaan lahan. Penelitian ini dilakukan pada lahan gambut di Rasau Jaya-Propinsi Kalimantan Barat. Hasil penelitian ini menunjukkan bahwa berat basah, berat kering, kadar air, kadar abu dan C-organik biomasa pada KJ lebih tinggi daripada KS, SB, HS dan HP. Sedangkan serasah HP mempunyai kandungan C lebih tinggi daripada KS, HS, SB dan KJ. Kata kunci : biomasa tanaman, lahan gambut, perubahan penggunaan lahan, serasah

KARAKTERISTIK MASYARAKAT DI SEKITAR DAERAH TUJUAN WISATA (Studi Kasus : Taman Wisata Mekarsari, Desa Mekarsari, Kecamatan Cileungsi, Kabupaten Bogor) Suryono, Chondro; Sudarmadji, Sudarmadji; Martono, Edhi; Fandeli, Chafid
Kepariwisataan: Jurnal Ilmiah Vol. 9 No. 03 (2015): Kepariwisataan: Jurnal Ilmiah
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Sekolah Tinggi Pariwisata Ambarrukmo Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47256/kepariwisataan.v9i03.138

This article aims to analyze the characteristics of the community around tourist sites. This research uses descriptive study where data obtained from direct interviews with sources of data and direct observation in the study site. Methods of data collection is the way researchers get the data required in the conduct of research on sources of research data. It was concluded that the characteristics of the surrounding communities with the development of attractions like Mekarsari showed the positive impact, more choice of livelihood for the inhabitants of surrounding areas such as whether they wish to be employees, as entrepreneurship, or as traders. However, these positive effects are not accompanied by increased levels of public education around the village Mekarsari. This is due to the understanding of higher education has not been considered important, and also the villagers consider that the modest education (elementary, senior high school, high school) has been able to earn money, whether as laborers, trade or wiraswata (open stalls). Keywords: Characteristics, Public, Mekarsari park

KARAKTERISTIK PENGGUNA SEPEDA LIPAT TERHADAP PEMILIHAN MODA TRANSPORTASI DI KOTA PALEMBANG Praditya, Norca; Rahmadona, Efrilia; Sudarmadji, Sudarmadji; Pratama, Ade Surya
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 6, No 4 (2020): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.3216202064

Sustainable Transportation is one of the embodiment of sustainable development, sustainable development puts forward the concept of eco-friendly urban, where the concept aims to balance the increasingly rapid development activities with an eco- friendly transportation system that is integrated with other modes of transportation, particularly the public transportation. Through this research, it is expected that it will become a reference for planning the development of bicycle routes and lanes in the city of Palembang. The research method used was a quantitative descriptive approach, data collection techniques conducted through a questionnaire survey, the total population was 966 cyclists, the sample taken for respondents with the Slovin formula was 478 respondents. The sampling technique used was simple random sampling, the results of data processing will be illustrated in tables and diagrams and calculations for the study of bicycle route lane using a matrix of origin and destination. Based on the questionnaire data obtained, from the survey results of 478 respondents, the percentage of cyclist was predominantly male and it was 91%, based on the analysis of activity patterns of folding cyclists, it indicated that the use of bicycle was 77% and it intended to the purpose of sports trips, 8% was for the purpose of recreation, 6% was for the purpose of daily activities, 5% was for the purpose of social travel, and the last 4% was for work purposes. 20% of folding cyclists were aimed to the short trips ? 10 km, while the use of bicycles for medium distances, which was around 10 km to 40 km, with the largest percentages was 38% and 32%. 68% of folding cyclist stated that the bicycle mode was the most economical mode of transportation. Dealing with the analysis for the opportunity to develop special bicycle routes and lanes, bicycle users were enthusiastic to obtain supporting facilities in the form of special bicycle lanes, 97% of cyclists agreed that a special bicycle lane must be provided. The selection of roads for bicycle routes was based on the calculation of the origin and destination matrix for the cyclists, the districts of the most potential cyclists were selected as starting and ending points for the bicycle route. Thus, 2 alternatives were selected for the special bicycle route. Key Words: sustainable transportation, characteristics, bicycle route, bicycle lane

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