scholarly journals Identification of Coastal Vulnerability at The North Pagai Island of Mentawai Using Smartline Method

Author(s):  
Herdiana Mutmainah ◽  
Aprizon Putra

Climate change and global warming have a negative impact on coastal, especially small islands. Abration and floods can be very danger and need response to minimize the disaster risks. A simple and practical method is needed to inform the location and type of coastal vulnerability and its risks along coastal segments. Smartline is a coastal management method that represents the geomorphology of coastal, hinterland and shoreline. The North Pagai is a small island, a part of the Mentawai Islands that located at the west offshore of Sumatra Island and one of the under developed areas in Indonesia. The island is surrounded by the Hindia Ocean and located on a subduction path of tectonic plate that prone to earthquakes and Tsunami. High rainfall, strong winds, the complexity of coastal morphology and also the majority of coastal residents and limited infrastructure make the problems more complicated. Tsunami in 2010 (7.7 Mw) caused the change of shoreline getting worst on The East Coast of The North Pagai Island. This study aims to identify the coastal vulnerability using Smartline method. The research was conducted on April and September 2016. The result concludes that physical aspect shows Saumangaya and Matobe Village at high and also very high level of vulnerability hence Sikakap Village at very high level. The socio-economic aspect shows that The Sikakap Village is more advanced but contrary more vulnerable to disaster in terms of population density and complex activities. The North Pagai Island is a vulnerable island from physical and socio-economic aspects.

2020 ◽  
Vol 3 (4) ◽  
pp. 76-89
Author(s):  
Zurab D. Dzhapua ◽  

The article analyses the contribution of Meletinsky to Caucasian epic studies. The role of Caucasian epic traditions in the study of the problem of the origins and the early forms of the epos is considered. A significant number of the comparative-typological studies of Meletinsky are based on the materials of mythoepic cultures of Caucasus mountain people. The scholar singled out the Caucasian epics, along with some other traditions, as the special early stage in the history of the epic. Meletinsky was one of the pioneers in the fundamental studies of the Caucasian Nart epics. Based on the analysis of materials available to him at that time, Meletinsky comes to the fundamental conclusions on the genre nature, national versions, images, subjects and motifs of the Nart epic. The scholar considered Sataney and Sasrykua to be the earliest characters in the epic, whose images clearly reflected the features of a cultural hero, especially in the close Abkhaz and Adyg versions. Furthermore, according to Meletinsky, the Transcaucasian legends about the chained heroes – Abkhaz Abryskil, Armenian Mger and Georgian Amiran – represent a kind of interweaving of mythological epic and heroic tales, in which the motives of cultural exploits are largely supplanted by episodes of the heroic struggle with Giants. In the studies of Meletinsky, the epic traditions of the people of the North Caucasus and Transcaucasia are subjected to the deepest analysis at a very high level of comparative studies.


2021 ◽  
Vol 9 (8) ◽  
pp. 815
Author(s):  
Muhammad Irham ◽  
Ichsan Rusydi ◽  
Haekal A. Haridhi ◽  
Ichsan Setiawan ◽  
Yopi Ilhamsyah ◽  
...  

The purpose of this study was to determine how vulnerable the west coast of Aceh Besar, Aceh province, Indonesia, is in terms of its coastal morphology. This research was conducted from August to December 2020 and data processing was carried out at the Geographical Information Systems Laboratory, Faculty of Marine Affairs and Fisheries, Syiah Kuala University. The method used was the coastal vulnerability index (CVI) with four geological parameters, namely geomorphological parameters, beach elevation, beach slope and shoreline changes. The results obtained from the CVI method show that 20.60% of the west coast of Aceh Besar, which has a total coastline length of 93.2 km, is in the very high vulnerability category (19.2 km), while 23.18% (21.6 km) is in the high vulnerability category, 8.80% (8.2 km) in the moderate category, 6.44% (6 km) in the low category and 40.99% (38.2 km) in the very low category. Sub-districts classified as having very high vulnerability are Peukanbada (7.94%), Leupung (6.22%), Lhoong (4.94%), and Lhoknga (1.50%). The geomorphology of areas that have very high vulnerability is generally in the form of sandy beaches with a very gentle slope, while, geomorphologically, areas that have very low vulnerability have a high elevation and cliff beaches.


2020 ◽  
Vol 16 (1) ◽  
pp. 25-33
Author(s):  
Yuliana Yuliana ◽  
Markus Heryanto Langsa ◽  
Alfhons D. Sirampun

At present the laundry business is one of the promising businesses with targeted consumers from the upper middle class who do not have much time to wash clothes at home. Like other industries, laundry also produces wastewater that can have a negative impact on the environment if it is not managed properly. This study characterizes laundry wastewater and looks at its effect on the quality to the groundwater/wells close to the laundry business. Water samples include TSS, TDS, Turbidity, pH , COD, BOD, Phosphate, and Detergent parameters analyzed according to SNI and/or the HACH method (DR3900). Characterization of the laundry wastewater samples show a high level of detergent and phosphate parameters ranging from 27,7-39,4 mg/L and 6,1-27,1 mg/L, respectively with the highest levels corresponds to Laundry wastewater samples at Jalan Baru. The detergent and phosphate contents in all well water samples are still below the required quality standard. Although the concentrations of parameters analysed in the laundry wastewater  are very high and above the guidance, it is obvious from the well water samples results that there is no effect of laundry waste waters to the quality of ground waters.


1965 ◽  
Vol 102 (1) ◽  
pp. 73-79 ◽  
Author(s):  
W. R. Morgan

AbstractQuartz keratophyre sills interbedded with folded Devonian sediments in the Annan River Tinfield area in North Queensland have probably been intruded when the sediments were unconsolidated or only partly consolidated. The sills are compared with similar occurrences in Wales, Alaska and Australia. Some of these may have been extruded prior to burrowing into sea-bottom muds but the North Queensland examples are probably true, though very high-level, sills.


Author(s):  
Fan Wu ◽  
Xiaoke Wang ◽  
Yufen Ren

Accelerated urbanization disturbs ecosystems and influences ecosystem structures and functions. Ecosystem health (ESH) assessments in regions undergoing the rapid urbanization process assist us in understanding how ESH changes and how urbanization specifically affects ESH. We assessed the ESH of Beijing-Tianjin-Hebei (BTH) region, China, including the ecosystem service value (ESV). In this study, we selected nine indicators and applied multiple pieces of software, including ArcGIS10.4, Fragstats4.2 and Geoda1.14 to detect the impacts of urbanization on regional ESH in 1995, 2000, 2005, 2010 and 2015. The results show that ESH in the BTH region increased from 2000 to 2015, especially in the northern parts. The improvements were due to the implementation of key ecological restoration projects protecting and re-establishing the forest in the north. Furthermore, the spatial correlation results indicate that urbanization had a negative impact on ESH in the BTH region, of which the dominant factor was the population density in 1995. The dominant factor was the construction land proportion from 2005 to 2015. We suggest that ecological restoration projects should be continued in northern regions with strong and relatively strong ESH levels to maintain high-level ecosystem health. In addition, more attention should be paid to the ESH level improvement in peri-urban areas.


Author(s):  
I. S. Broshchak ◽  
O. B. Kononchuk ◽  
S. V. Pyda ◽  
A. I. Herts ◽  
N. V. Herts

The agrochemical composition of chernozems typical of the agrobiological laboratory of Ternopil Volodymyr Hnatiuk National Pedagogical University has been studied and the economic expediency of using complex mineral fertilizer Plantafol 10.54.10 during cultivation of soybeans, to eliminate the shortage of some elements of mineral nutrition and increase crop productivity was analyzed. It was found that chernozems is characterized by a close to neutral exchange (pH 5.6) and hydrolytic (2.16 mg-eq. / 100 g) reaction, an increased amount of absorbed bases (19.0 mg-eq. / 100 g) and increased rate of saturation of bases (89.8 %), which is typical of agricultural lands with high carbonate content. Сhernozem soil has a low amount of easily hydrolyzed Nitrogen (102.0 mg / kg), an average supply of humus (2.63 %) and mobile Phosphorus (71.0 mg / kg) and a very high level of metabolic Potassium (189.0 mg / kg). Based on the specified agrochemical composition of the soil, taking into account the peculiarities of mineral nutrition of soybean plants, the importance for the formation of generative organs of Phosphorus and its ability to highly effective symbiotic nitrogen fixation in the study area, it is suggested to eliminate possible shortages of soil nutrients, in the first of Phosphorus, foliar fertilization with Plantafol 10.54.10. Complex mineral fertilizer Plantafol 10.54.10 contains Nitrogen – 10 %, Phosphorus – 54 %, Potassium – 10 %, as well as trace elements in chelated form EDTA – Boron 0.02 %, Iron – 0, 07 %, Manganese – 0.03 %, Zinc – 0.01 %, Copper – 0.005 %. It was found that double foliar fertilization with Plantafol 10.54.10 fertilizer at a dose of 3 kg / ha increases the yield of soybean grain cultivar Annushka, which is grown on chernozems typical of agrobiolaboratory, by 0.34 t / ha or 15.5 %. Yield growth was mainly due to a 16.8 % higher biological yield of aboveground mass and an increase in the number of beans on plants – by 15.3 %, seed weight – 16.0 %, total number of seeds – 11.4 %, as well as less pronounced increase in the height of attachment of the lower beans, the density and height of plants in the crop and the weight of 1000 seeds. The length of the fruits and their glazing did not change as affected by fertilizer. The obtained data allow to offer foliar fertilization with complex fertilizer Plantafol 10.54.10, as one of the elements of the system of soybean fertilization on chernozems with close to neutral reaction, increased amount of absorbed bases, low amount of easily hydrolyzed Nitrogen, average supply of humus and mobile Potassium and a very high level of exchangeable Potassium, which reduces the negative impact of deficiencies in the root nutrition of plants, increases crop productivity and provides additional income of 4078 UAH / ha.


2019 ◽  
Vol 276 ◽  
pp. 02006 ◽  
Author(s):  
Ari Sandhyavitri ◽  
Ferry Fatnanta ◽  
Rizki Ramadhan Husaini ◽  
Imam Suprayogi

The length of Riau coastlines, Indonesia were approximately 900 km long. Hence, there has been difficulty in prioritizing managing various locations of the coastline damages based on a systematic approach. The objectives of this paper are to apply the state of art in the identification of 16 major coastlines vulnerability index in Riau, and to prioritizing which coastlines should be managed in terms of 4 main aspects such as; technical aspect, economic, environmental, and strategic one. The methodology applied in this paper utilized the combination of the Coastal Vulnerability Index (CVI) and social economic approaches using a Likert’s scale of 1 (low) to 5 (very high). This study has recommended a priority in managing the coastlines in Riau was as follow; Pambang Pesisir, Bengkalis and Tanah Merah, Meranti Islands. These coastlines were calculated as the very high level of vulnerability indexes of 75.3 and 74.9 respectively. This study also simulated the use of shoreline protection structure by Genesis software utilizing a revetment construction. The results showed that the construction of revetment structure in Pambang pesisir beach may reduce the shore erosion rate from 10 m/14 year to 0 m /14 year.


Author(s):  
Maulinna Kusumo Wardhani ◽  
Akhmad Farid

<div class="WordSection1"><p><em>Pulau Poteran dan Pulau Gili Lawak Kabupaten Sumenep merupakan pulau-pulau kecil yang berada di sebelah barat Pulau Madura dengan kawasan darat dan perairan yang cukup potensial. Tujuan dari penelitian ini adalah pembuatan model dinamik kerentanan pantai pulau-pulau kecil tersebut berdasarkan aspek ekologi, sosial dan ekonomi sebagai upaya awal menetukan perencanaan pengelolaan yang berkelanjutan dan memetakannya. Analisis yang akan dilakukan pada penelitian ini merupakan penetapan variabel-variabel indeks kerentanan pantai pulau-pulau kecil (PPK) dan memodelkan dinamika kerentanan pantai pulau-pulau tersebut. Variabel-variabel tersebut meliputi, (1) Keterpaparan (Exposure), (2) Kepekaan (Sensitivity) dan (3) Daya Adaptasi (Adaptive Capacity). </em><em>Pengembangan model simulasi dinamis ini bertujuan untuk mempelajari tingkat kerentanan pantai di Pulau Poteran dan Gili Lawak Kecamatan Talango Kabupaten Sumenep didasarkan pada beberapa asumsi, yaitu: (1) model tersebut berada dalam kondisi tetap atau stabil (steady state), (2) model tersebut dianggap suatu sistem yang tertutup (closed system). </em><em>Parameter kenaikan muka laut rata-rata tiap tahun, tingkat erosi dan kepadatan penduduk merupakan parameter dinamik yang menyebabkan nilai kerentanan tinggi di Pulau Poteran, sedangkan parameter lamun mengakibatkan dimensi daya adaptif diPulau Gili Lawak menjadi lebih tinggi dari dimensi yang lain.Tingkat kerentanan pantai Pulau Poteran dan Gili Lawak berada pada kategori sedang dan berdasarkan model dinamik yang dibuat kedua pulau tersebut akan berada pada tingkat kerentanan sangat tinggi pada tahun ke 3 jika tidak dilakukan peningkatan kapasitas adaptif habitat pesisir.</em></p><p><em> </em></p><p><strong>Kata Kunci:</strong> <em>Model Dinamik, Kerentanan, Pulau Kecil</em></p></div><p><strong><br /></strong></p><p align="center"><strong><em>DYNAMICS MODEL OF COASTAL VULNERABILITY OF POTERAN AND GILI LAWAK ISLAND, SUMENEP, MADURA</em></strong></p><p><em>Poteran and Gili Lawak Island Sumenep Regency is a small islands that located in the west of Madura with potential terrestrial and marine areas. The purpose of this research is the dynamic modeling of coastal vulnerability of small islands are based on ecological, social and economic as an initial effort determine the sustainable management planning and mapping. The analysis will be performed in this study is the determination of variables coastal vulnerability index for small islands and the dynamics models of the vulnerability for coastal islands. These variables include, (1) Exposure, (2) Sensitivity and (3) Adaptive Capacity. The development model of dynamic simulation was done to evaluate the beach vulnerability on the Poteran and Gili Lawak Island at Talango District Sumenep based on several assumptions, they are (1) the model was in a state of permanent or stable (steady state), (2) the model considered a closed system. Mean sea level rise per year, erosion rate and population density are dynamic parameters that causes high of vulnerability value in Pulau Poteran, while the sea-grass parameter on Gili Lawak Island causes the value of adaptive capasity demention is higher than other dimensions.The level of beach vulnerability of Poteran and Gili Lawak Island at middle category and was based on a dynamic model created two islands will be at a very high level of vulnerability in the third yearif not increase the adaptive capacity of coastal habitats.</em></p><p><em> </em></p><p><strong>Keywords</strong>:<em> Dynamic Model, Beach Vulnerability, Small Island</em></p><p><strong><br clear="all" /> </strong></p>


2007 ◽  
Vol 29 (3) ◽  
pp. 415-426
Author(s):  
Pham Van Ninh ◽  
Phan Ngoc Vinh ◽  
Nguyen Manh Hung ◽  
Dinh Van Manh

Overall the evolution process of the Red River Delta based on the maps and historical data resulted in a fact that before the 20th century all the Nam Dinh coastline was attributed to accumulation. Then started the erosion process at Xuan Thuydistrict and from the period of 1935 - 1965 the most severe erosion was contributed in the stretch from Ha Lan to Hai Trieu, 1965 - 1990 in Hai Chinh - Hai Hoa, 1990 - 2005 in the middle part of Hai Chinh - Hai Thinh (Hai Hau district). The adjoining stretches were suffered from not severe erosion. At the same time, the Ba Lat mouth is advanced to the sea and to the North and South direction by the time with a very high rate.The first task of the mathematical modeling of coastal line evolution of Hai Hau is to evaluate this important historical marked periods e. g. to model the coastal line at the periods before 1900, 1935 - 1965; 1965 - 1990; 1990 - 2005. The tasks is very complicated and time and working labors consuming.In the paper, the primarily results of the above mentioned simulations (as waves, currents, sediments transports and bottom - coastal lines evolution) has been shown. Based on the obtained results, there is a strong correlation between the protrusion magnitude and the southward moving of the erosion areas.


2019 ◽  
Vol 1 (34) ◽  
pp. 391-422
Author(s):  
اشواق حسن حميد صالح

Climate change and its impact on water resources is the problem of the times. Therefore, this study is concerned with the subject of climate change and its impact on the water ration of the grape harvest in Diyala Governorate. The study was based on the data of the Khanaqin climate station for the period 1973-2017, (1986-2017) due to lack of data at governorate level. The general trend of the elements of the climate and its effect on the water formula was extracted. The equation of change was extracted for the duration of the study. The statistical analysis was also used between the elements of the climate (actual brightness, normal temperature, micro and maximum degrees Celsius, wind speed m / s, relative humidity% The results of the statistical analysis confirm that the water ration for the study area is based mainly on the X7 evaporation / netting variable, which is affected by a set of independent variables X1 Solar Brightness X4 X5 Extreme Temperature Wind Speed ​​3X Minimal Temperature and Very High Level .


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