scholarly journals Shallow Aquifer Groundwater Facies At Multiple Landuse Sites In Manglayang Volcanic Area, Jatinangor And Surroundings, Indonesia

2021 ◽  
Vol 6 (2) ◽  
pp. 120-126
Author(s):  
Bombom Rachmat Suganda ◽  
Wahyudi Yusuf ◽  
Mochamad Nursiyam Barkah ◽  
Cecep Yandri Sunarie ◽  
M. Sapari Dwi Hadian
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Volcanic Rocks ◽  
Research Area ◽  
Shallow Aquifer ◽  
Volcanic Area ◽  
Aquifer Systems ◽  
Industrial Land Use ◽  
Groundwater Samples ◽  
Physical And Chemical

Manglayang Mountain is generally composed by old and young volcanic materials. Older rocks are located around the northern part of mountain peak, in medial and distal parts. In the southern and southeastern parts composed by relatively young volcanic rocks starting from the proximal, medial to distal. These geologic conditions produce diverse aquifer systems. These differences in land use environments contribute to water quality conditions in local shallow aquifers. The research is therefore carried out in order to the effect of difference in land use environments on groundwater facies by dividing the area based on each land use. Land use in the research area is dominated by allotment of agricultural land, settlement, and industry. The study was conducted from the medial area to distal to the southern part of Manglayang Mountain, administratively including Sukasari, Jatinangor, and Rancaekek districts. To observe the groundwater conditions in the aquifer from the study area, physical and chemical parameters were tested. Chemical parameter test results were plotted using piper diagrams and Durov diagrams as a method that can illustrate the condition of groundwater facies. Physical characteristics of groundwater may reflect groundwater interactions with rocks. Measurable TDS concentrations of 48 - 299 mg / L and measured EC 100 - 1020 μmhos / cm, show different interaction conditions between groundwater with rocks or have received different material subsidies. Similarly, the occurrence of temperatures that vary considerably between air and water indicates the distance of groundwater sources with various water bodies. The groundwater facies that developed in the research area are generally dominated by Ca, HCO3 in the agricultural land use area, Mg, HCO3 in the settlement area, and in some Cl-facing evolving places in the industrial land use zones. In addition, there are also indications of mixing of anions and cations in groundwater samples in all three land use areas. This indicates that there has been a change in groundwater characteristics in some areas of land use utilization in the research area

scholarly journals Impact Imposed by Urbanization on Soil Heavy Metal Content of Lake Wetland and Evaluation of Ecological Risks in East Dongting Lake in China

2021 ◽  
Author(s):  
Yang Lin ◽  
Kai Luo ◽  
Zilin Su ◽  
Yang Wu ◽  
Wei Xiao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Land Use ◽  
Metal Content ◽  
Agricultural Land ◽  
Research Area ◽  
Dongting Lake ◽  
Heavy Metal Content ◽  
Ecological Risks ◽  
Positive Correlation

Abstract The urbanization is regarded as the major factor related to human activities that may interfere with the natural ecosystem. In this study, we have selected the wetland of East Dongting Lake as the research area. We have collected 180 soil samples (within the range of 0–20 cm, and 20cm-40cm), and we have measured the contents of their physicochemical properties (including salinity, pH value, soil particle composition, soil organic carbon, nitrate nitrogen and rapidly available phosphorus) as well as heavy metal elements (including As, Hg, Cd, Pb, Ni and Cr). We have adopted the methods of multivariate statistical analysis and inverse distance weighted (IDW) interpolation, so as to to reveal the sources and distribution characteristics of heavy metal content in soil in the research area. By adopting the potential ecological risk index (PERI) method proposed by Hakanson, we intend to assess the PERI values of heavy metals. Our research findings have shown that: (1) 8 sorts of heavy metals have shown positive correlation with each other. As, Hg and Zn have shown a significantly positive correlation with SOC (P < 0.01); As, Ni, Cr and Zn have shown a significantly positive correlation with AP (P < 0.01); As and Pb have shown a significantly positive correlation with Clay (P < 0.01); whereas Hg and Zn have shown a significantly negative correlation with Silt (P < 0.01); As and Pb have shown a significantly negative correlation with Sand (P < 0.01). (2) During urbanization, the elements of Cd, Ni, As, Hg and Pb might be enriched due to agricultural and industrial activities, whereas the use of fertilizers and pesticides constitute one of the major factors contributing to the increase of Cd and Pb contents in soil. (3) Influenced by the varying land patterns and with exception to Cu, the Fe-normalized concentrations have shown significant variations among different types of land use (P < 0.05). Specifically, there is a significantly higher level of Cd, Zn, Pb and Hg contents in the agricultural land than other types of land use, whereas there is a slightly higher level of heavy metal content in the mudflats than that in the grassland. In addition, the content of heavy metals in woodland remains relatively stable, and with exception to As, the content of heavy metals in woodland is the lowest among the five types of land. (4) The average value of the comprehensive PERI in heavy metals amounts to 555.03, representing a strong degree of ecological risks. Specifically, the proportion of sampling points of Cd that have a high level of ecological risks amounts to 36.51%, which is the primary element contributing to heavy metal pollution in the region, especially in the agricultural land.

scholarly journals Evaluating the Impacts of Agriculture to Groundwater Pollution in a Shallow Aquifer in Eastern Croatia

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Vilim FILIPOVIĆ ◽  
Dragutin PETOŠIĆ ◽  
Ivan ŠIMUNIĆ ◽  
Ivan MUSTAĆ ◽  
Zlatko SVEČNJAK ◽  
...  
Keyword(s):  
Groundwater Pollution ◽  
Agricultural Land ◽  
Shallow Aquifer ◽  
Nitrogen And Phosphorus ◽  
Potential Threat ◽  
Investigation Area ◽  
Groundwater Samples ◽  
The Mean ◽  
Phosphorus Levels ◽  
Observation Period

Agricultural activities are frequently associated with groundwater pollution. In this study, the goal is to evaluate the nitrate and phosphorus levels and it's impact to the groundwater. The investigation was located in the Eastern Croatia in the area of 6.600 ha of mainly agricultural land. Groundwater quality in the countertop part of the soil profile to 4.0 m depth was monitored by 40 installed hydropedological piezometers. Sampling water from piezometers was carried out every 60 days. In the groundwater samples nitrate, nitrite, ammonia and orthophosphate were analyzed. According to the indicators it was confirmed that at all locations during the observation period mean concentrations of NH4-N, NO3-N, total nitrogen (N) and phosphorus (P) in the groundwater from piezometers occasionally exceeded the value of maximum allowable concentration (MAC) which is prescribed by the Regulations. The mean concentrations of NO3-N were consistent and varied in the range from 2.42 to 4.61 mg NO3-N/l, the mean concentrations of nitrogen from ammonia exceed the permissible value (NH4-N) throughout the year, the average being higher than MAC (0.50 mg NH4-N/l) and were within the range of 0.57 mg NH4-N/l in to 1.21 mg NH4-N/l. The maximum concentration of phosphorus in groundwater were in the range of values from 0.40 to 1.11 mg P/l. Observation of traditional agricultural production in the investigation area with emphasis on leaching of nitrogen and phosphorus shows that it represents a potential threat to the future pollution of groundwater with nitrogen with phosphorus.

scholarly journals Spreading of Groundwater Contamined by Leached in the Surrounding Area of Piyungan Landfill Bantul District, Yogyakarta Province

2017 ◽  
Vol 19 (1) ◽  
pp. 16
Author(s):  
J Sartohadi ◽  
M Widyastuti ◽  
I. Sri Lestari
Keyword(s):  
Rainy Season ◽  
Research Area ◽  
Major Elements ◽  
Topographic Map ◽  
Surrounding Area ◽  
Grid Sampling ◽  
Minor Elements ◽  
Groundwater Samples ◽  
Standard Quality ◽  
Physical And Chemical

The objectives of this research are: (1) to study the characteristics of aquifer, distribution and chemical types of groundwater in the research area; (2) to measure the consentration of major elements (HC03-, Cl-, S042-, Ca2+, Mg2+, Na+, K+) and minor elements (S2-, NH4+) as indicators of leached contamination in the groundwater; and (3) to establish the spreading of contamined groundwater by leached. The grid sampling method was applied in this research. The grid dimension is 1 cm x 1 cm measured in the 1:25000 scale of Indonesian Topographic Map. The groundwater samples were taken randomly within the grid. Not the whole study area covered by the map was grided but only the surrounding area of Piyungan Landfill and the area lower than Piyungan landfill were grided. The groundwater samples were taken during the rainy season because during the rainy season there were more leached produced from Piyungan Landfill. The groundwater samples were examined their physical and chemical qualities using the legal standard quality in Yogyakarta Province. Spatial analysis using maps and graphics were applied to examine the spreading of contimined groundwater by leached. The spreading of unconfined groundwater in the study area was not equal distributed but it seems to be controlled by the landforms. There were an increasing elements content of Cl-, Ca2+, Mg2+ and HCO3-, as well as dissolved oxygen, NO3- and S2- in the groundwater contamined by leached. The zonation of the spreading of groundwater contamined by leached was categorized into three class, i.e., central (location of landfill, well number 1 0), transisional (well number: 11, 12, 13, 15), and primary (well number: 8, 14, 16, 17, 25, 26) zones. The zonation of groundwater matched with the analysis of groundwater quality by the distance from the Piyungan Landfill.

Dampak Pembangunan Industri Terhadap Perubahan Penggunaan Tanah dan Kesesuaiannya dengan Tata Ruang (Studi di Kabupaten Semarang Provinsi Jawa Tengah)

Tunas Agraria ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 184-207
Author(s):  
Febsy Niandyti ◽  
Yendi Sufyandi ◽  
Westi Utami
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Industrial Development ◽  
Agricultural Land ◽  
Great Influence ◽  
Industrial Land ◽  
Industrial Land Use ◽  
Spatial Approach ◽  
The Impact ◽  
Spatial Plan

Abstract: The industry has a great influence on the economy of Semarang Regency by becoming the largest contributor to Gross Regional Domestic Product (GRDP). The rapid industrial development from 2011-2017 has an impact on the decrease of agricultural land area, besides that industrial development has implication on land use mismatch of Spatial Plan. This study describes the results of descriptive qualitative analysis with spatial approach from the impact of industrial development on land use change and land use suitability for industry in 2017 against Spatial Plan. The analysis shows that, first, the impact of industrial development on land use change in Semarang regency in 2011-2017 resulted in the amount of agricultural land decreased by 253,32 Ha. The biggest land use change occurred on industrial land use that is 146,10 Ha (28,84%). Second, the use of land for industry in 2017 of 288,05 Ha has been in accordance with the spatial plan is in accordance with the industrial designation area, while the land with an area of 202,02 Ha is used for industries that are not in accordance with the industrial designation area. Keywords: Land Use Change, The Industry, The Suitability of The Spatial Plans Intisari: Industri telah memberikan pengaruh terhadap perekonomian Kabupaten Semarang dengan menjadi penyumbang terbesar pada Produk Domestik Regional Bruto (PDRB). Pesatnya perkembangan industri dari tahun 2011-2017 berdampak pada penurunan luas tanah pertanian, disamping itu perkembangan industri tersebut berimplikasi pada ketidaksesuaian penggunaan tanah tehadap Rencana Tata Ruang Wilayah (RTRW). Kajian ini menjelaskan mengenai hasil analisis secara deskriptif kualitatif dengan pendekatan keruangan dari dampak pembangunan industri terhadap perubahan penggunaan tanah serta kesesuaian penggunaan tanah untuk industri tahun 2017 terhadap RTRW. Hasil analisis menunjukkan bahwa pertama, dampak pembangunan industri terhadap perubahan penggunaan tanah di Kabupaten Semarang tahun 2011-2017 mengakibatkan jumlah luas tanah pertanian mengalami penurunan sebesar 253,32 Ha. Perubahan penggunaan tanah terbesar terjadi pada penggunaan tanah untuk industri yaitu seluas 146,10 Ha (28,84%). Kedua, penggunaan tanah untuk industri tahun 2017 seluas 288,05 Ha telah sesuai dengan RTRW yaitu sesuai dengan kawasan peruntukan industri, sedangkan tanah dengan luas 202,02 Ha digunakan untuk industri yang tidak sesuai dengan kawasan peruntukan industri. Kata Kunci: perubahan penggunaan tanah, industri, kesesuaian RTRW

scholarly journals ANALISIS KEMAMPUAN LAHAN UNTUK ARAHAN PENGGUNAAN LAHAN PADA LERENG TIMUR LAUT GUNUNG AGUNG KABUPATEN KARANGASEM-BALI

2015 ◽  
Vol 9 (2) ◽  
pp. 6
Author(s):  
I Gede Budiarta ◽  
I Wayan Nuarsa ◽  
I Made Adhika
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Research Area ◽  
Class Iii ◽  
Land Use Patterns ◽  
Land Capability ◽  
Dry Land ◽  
Entire Study ◽  
Land Unit ◽  
Technological Advances

This research was conducted in the northeastern slopes of Mount Agung in Karangasem regency, Bali province. The research area is dry land with land use patterns that have not demonstrated compliance with existing land potential. On the other hand, technological advances in the field of agriculture has been growing rapidly, one by analyzing the ability of the land to determine the potential of land resources and minimize the risk of failure of farmers. The results of the analysis of land capability is expected to serve as guidelines in a more optimal use of land in accordance with expectations. The purpose of this study was to determine the potential of land and recommends referral based land use conditions existing land capability in the area of research. The design used is descriptive design, with the main objective to provide a picture or description of land use capability and suitability of the study area. Guidelines for land capability analysis in this study refers to Arsyad (2006) and the Regulation of the Minister of Environment No. 17 Year 2009 on Guidelines for Determining Environmental Carrying Capacity in Regional Spatial Planning. The results showed that 1) land capability class research in areas ranging from class III to class VI. Land capability class III is spread on the land unit 1, land unit 2, land unit 3,and land unit 8. Capability class IV land located on land unit 4, land unit 7, land unit 9, land unit 10 and land unit 12.Land capability classes VI located on land unit 5, land unit 6, and land unit 11; 2) land use suitability value obtained was 92.85%. This shows that almost the entire study area (92.85%) is in conformity between the ability of the land and its use. The rest (7.15%) classified as not appropriate. Suitability of the land use study area into the high criteria; 3) Referral land use adapted to the existing conditions of land units. In class III-IV land that does not meet the user or not used optimally, land use options to do that seasonal crops, plantation crops. While on a class VI land use that is not appropriate or not used optimally, land use options to do that forest production and non-agricultural land use.

scholarly journals PHYSICAL AND CHEMICAL PROPERTIES OF GROUNDWATER IN BANJARARUM AREA AND ITS VICINITY, WEST PROGO

KURVATEK ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 111-116
Author(s):  
Sri Ning Peni ◽  
. . T. Listyani R.A.
Keyword(s):  
Volcanic Rocks ◽  
Chemical Properties ◽  
Mineral Dissolution ◽  
Special Treatment ◽  
Test Results ◽  
Chemical Test ◽  
Animal Dung ◽  
Groundwater Samples ◽  
Laboratory Test Results ◽  
Physical And Chemical

 Groundwater in the Banjararum area is found in various rocks that build  the West Progo Hills, including the Nanggulan and the Andesite Breccia Formations. Groundwater can be found in dug wells and springs. Field surveys show that the groundwater is generally clear, tasteless and odorless, except for the well at Ngipikrejo. Chemical test results from four samples showed that groundwater in limestone has Ca, Mg - HCO3 type, whereas in volcanic rocks of type Ca - HCO3 and Ca, Na - HCO3. Groundwater chemistry type is generated from the soil, mineral dissolution in sedimentary rocks and igneous rocks as well as the atmosphere through rainwater. The considerable content of NO3 in the Ngipikrejo area indicates pollution from human activities, plants or animal dung. In general, groundwater in the study area is suitable for use as clean water or drinking water, characterized by a measurable pH in the field of 6.6 - 7.2 and TDS 54 - 155 ppm. Nevertheless, laboratory test results show that groundwater samples are water-filled, with a hardness of 135,866 - 778,048 (moderately hard - very hard), so special treatment is required before drinking.

scholarly journals ERODIBILITAS TANAH (K) PADA BERBAGAI TUTUPAN LAHAN DI DESA BARU KECAMATAN SILAT HILIR KABUPATEN KAPUAS HULU

2021 ◽  
Vol 8 (4) ◽  
pp. 773
Author(s):  
Lidia Injiliana ◽  
Tri Widiastuti ◽  
Joko Nugroho Riyono
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Agricultural Land ◽  
Research Area ◽  
Soil Conditions ◽  
Land Type ◽  
Determining Factors ◽  
Class 1 ◽  
Land Cover Map ◽  
Land Changes

Land degradation will result in widespread land damage, especially damage to forest land. Changes in land use from permanent vegetation to intensive agricultural land make the soil more easily eroded. One of the determining factors of erosion is soil erosion and soil cover vegetation. Soil erodiability is the average amount of soil lost each year per unit of the index, while the land cover is useful to protect the soil from the threat of damage by erosion and improve soil conditions. The research area located in Silat Hilir Sub-District of Kapuas Hulu Regency is a strategic area of the district from the point of economic importance. The Upper Kapuas Statistics Agency says there is a change in land use from year to year. The changes occurred not only in the increase in land use but also on changes in land use. The purpose and benefit of this research are to know the class of soil erodiability as well as to provide information on the class of land erodiability in The New Village of Silat Hilir District of Kapuas Hulu Regency. The value of soil erodiability is calculated using the Wischmeier and Smith formulas (1978) and determined based on the overlay of two maps, namely the land type map and the land cover map. Soil erodibility on various land cover in Silat Hilir Sub-District of Kapuas Hulu sub-district consists of 4 classes of land erodiability, among others: class 1 (very low), class 2 (low), class 4 (somewhat high), and class 5 (high).Keywords: Erodibility, Land Cover, Soil

scholarly journals Groundwater quality in Ponjong Karst, Gunungkidul Regency, Special Region of Yogyakarta

2020 ◽  
Vol 1 (1) ◽  
pp. 7-11
Author(s):  
Avellyn Shintya Sari ◽  
Sari Bahagiarti K ◽  
Suharsono Suharsono ◽  
C Prasetyadi
Keyword(s):  
Volcanic Rocks ◽  
Active Volcano ◽  
Research Area ◽  
Geological Structure ◽  
Groundwater Exploration ◽  
Geological Mapping ◽  
Karst Area ◽  
Aquifer System ◽  
Aquifer Systems ◽  
Geological Conditions

The hydrogeological condition of a region is determined by the type of lithology, morphology, and subsurface conditions where the condition is very helpful in the study of groundwater exploration. Especially when we encounter interesting geological conditions when the groundwater exploration in the karst area in which volcanic rocks are resulting from the activities of the active volcano in the past. Groundwater exploration at Ponjong area and surrounding does have its special characteristics, because it has 2 different rock characteristics where the northern part of the research area in the form of a karst area (limestone of Wonosari Formation) while the southern part is an area of ancient volcanoes with dominant volcanic rocks from Wuni Formation, As for the research on the above and subsurface research area where the research is conducted based on surface geology mapping, geoelectric data collection, and groundwater sampling. Geological mapping includes geomorphological data, stratigraphy, and geological structure. The aquifer system of the research area can be divided into two systems, inter-grain aquifer systems, and fracture aquifer systems. Overall quality groundwater in the research area is quite good. Ponjong District there are mining activities that have resulted in changes in the land use system in the area. This can cause changes in the water surplus in the area due to the changing catchment area.

scholarly journals Multi-Criteria Decision Analysis for the Land Evaluation of Potential Agricultural Land Use Types in a Hilly Area of Central Vietnam

Land ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 90 ◽  
Author(s):  
Ronja Herzberg ◽  
Tung Gia Pham ◽  
Martin Kappas ◽  
Daniel Wyss ◽  
Chau Thi Minh Tran
Keyword(s):  
Land Use ◽  
Decision Analysis ◽  
Local Knowledge ◽  
Agricultural Land ◽  
Research Area ◽  
Land Evaluation ◽  
Agricultural Land Use ◽  
Multi Criteria Decision Analysis ◽  
Land Use Types ◽  
Central Vietnam

Land evaluation is a process that is aimed at the sustainable development of agricultural production in rural areas, especially in developing countries. Therefore, land evaluation involves many aspects of natural conditions, economic, and social issues. This research was conducted in a hilly region of Central Vietnam to assess the land suitability of potential agricultural land use types that are based on scientific and local knowledge. In the frame of this research, Participatory Rural Appraisal (PRA); Analytical Hierarchy Analysis (AHP); Geographic Information System (GIS); and, scoring based scientific literature and local knowledge were applied for Multi-Criteria Decision Analysis (MCDA) for land use evaluation. The results of the PRA survey reveal that five plants offer great agricultural potential in the research area, namely rice, cassava, acacia, banana, and rubber. The land suitability of each plant type varies, depending on physical conditions as well as economic and social aspects. Acacia and cassava represent the most suitable plant types in the research area. Recommendations regarding agricultural land use planning in the A Luoi district are brought forward based on the land evaluation results. The combination of scientific and local knowledge in land assessment based on GIS technology, AHP, and PRA methods is a promising approach for land evaluation.

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