scholarly journals PENGARUH PERUBAHAN PENGGUNAAN LAHAN TERHADAP KARAKTERISTIK ALIRAN MASUK (INFLOW) BENDUNGAN BATUTEGI The Effect of Land Use Change on the Inflow Characteristics of Batutegi Dam

2018 ◽  
Vol 6 (1) ◽  
pp. 73
Author(s):  
Eko Supriyadi ◽  
Irwan Sukri Banuwa ◽  
Slamet Budi Yuwono
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Catchment Area ◽  
Descriptive Analysis ◽  
Runoff Coefficient ◽  
Analysis Method ◽  
Dry Land ◽  
Human Need ◽  
Water Catchment ◽  
Total Inflow

Sekampung Hulu Watershed (DAS) is a catchment area for the Batutegi Dam. Changes in land use due to increasement of human need for land can affect the hydrological conditions of Sekampung Hulu Watershed. This research analyzed land use change to inflow characteristic of Batutegi Dam using descriptive analysis method by analyzing rainfall data, land use change data, inflow data and surface coefficient data. The results showed that there had been decreasing of forest area and the increasing of agriculture land, dry land, and shrubland. It affects the increasing of surface coefficient and decreasing of total inflow. The decrease in total inflow of batutegi dam in 2005 was 7.229,92 m3 / sec and in 2015 was 6.846,82 m3 / sec. This is due to the value of surface runoff coefficient in the Sekampung Hulu Watershed which increased in 2005 and 2015 by 0,23 to 0,34. The amount of surface coefficient value in 2005 and 2015 shows that the Sekampung Hulu Basin has been degraded, therefore it is necessary to restore the condition of the forest through reforestation and greening efforts to increase the water catchment area.Keywords: Sekampung Hulu Watershed; Inflow; Land use change.Daerah Aliran Sungai (DAS) Sekampung Hulu merupakan daerah tangkapan air (catchment area) bagi Bendungan Batutegi. Perubahan penggunaan lahan akibat meningkatnya kebutuhan manusia terhadap lahan dapat berpengaruh terhadap kondisi hidrologi DAS Sekampung Hulu. Penelitian ini menganalisis perubahan penggunaan lahan terhadap karakteristik aliran masuk (inflow) Bendungan Batutegi digunakan metode analisis deskriptif dengan cara manganalisis data curah hujan, data perubahan penggunaan lahan, data inflow dan data koefisien aliran permukaan. Hasil penelitian memperlihatkansudah terjadi penurunan luas hutan dan peningkatan luas pertanian lahan kering, pemukiman, dan semak belukar. Hal tersebut berpengaruh terhadap peningkatan koefisien aliran permukaan dan penurunan total inflow. Penurunan total inflow bendungan batutegi tahun 2005 sebesar 7.229,92 m3/detik dan pada tahun 2015 sebesar 6.846,82 m3/detik. Hal tersebut disebabkan oleh nilai koefisien aliran permukaan di DAS Sekampung Hulu yang mengalami peningkatan pada tahun 2005 dan 2015 sebesar 0,23 menjadi 0,34. Besarnya  nilai koefisien aliran permukaan tahun 2005 dan 2015 menunjukkan DAS Sekampung Hulu telah mengalami degradasi, oleh karena itu perlu dilakukan pemulihan kondisi hutan melalui upaya reboisasi maupun penghijauan untuk menambah daerah resapan air.Kata kunci: DAS Sekampung Hulu; Inflow; Perubahan penggunaan Lahan

scholarly journals Perubahan Penggunaan Lahan Terhadap Banjir di Kawasan Daerah Aliran Sungai Maros

2021 ◽  
Vol 3 (2) ◽  
pp. 52-59
Author(s):  
Ridwan Latief ◽  
Roland A. Barkey ◽  
Muh. Iqbal Suhaeb
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Area ◽  
Linear Regression Analysis ◽  
Analysis Method ◽  
Watershed Area ◽  
Catchment Areas ◽  
Map Analysis ◽  
Water Catchment ◽  
Reduced Water

Kawasan perkotaan di Kabupaten Maros dilalui oleh Sungai Maros. Aliran Sungai Maros mengalir menuju Selat Makassar dan merupakan muara bagi sungai-sungai lain di bagian hulu. Sungai Maros yang melalui kawasan perkotaan memiliki daerah aliran sungai yang sangat rentan untuk dialihfungsikan. Pertumbuhan alih fungsi lahan non terbangun menjadi terbangun secara fakta marak terjadi pada kawasan daerah aliran sungai Maros. Kawasan daerah aliran sungai yang terbanguni berpotensi menyebabkan gangguan ekologis dan hidrologis yang berdampak pada terjadinya banjir karena berkurangnya lahan resapan air serta berubahnya morfologi daerah aliran sungai. Tujuan pertama penelitan ini adalah mengetahui kondisi penggunaan lahan terbangun serta perubahannya dalam kurung waktu 5 tahun terakhir di kawasan Daerah Aliran Sungai Maros menggunakan metode analisi tumpang tindih peta. Tujuan kedua adalah mengkaji pengaruh perubahan penggunaan lahan terbangun terhadap banjir di kawasan Daerah Aliran Sungai Maros dengan menggunakan analisis regresi linear sederhana. Variabel prediktor yang digunakan yaitu perubahan penggunaan lahan (X), dengan variabel kriterium adalah luas banjir (Y). Hasil penelitian menunjukkan bahwa perubahan penggunaan lahan terbangun pada kawasan daerah aliran sungai Maros mengalami peningkatan yang cukup tinggi, dimana lahan kebun yang berubah menjadi permukiman sebesar 18,4 ha. Sedangkan sawah yang berubah menjadi permukiman sebesar 3,68 ha dari tahun 2015 ke tahun 2019. Perubahan penggunaan lahan terbangun yang terjadi berpengaruh kuat dan signifikan terhadap peningkatan luas genangan banjir pada kawasan daerah aliran sungai Maros. The urban area in Maros Regency is traversed by the Maros River. Maros River flows towards Makassar Strait and is the mouth of other rivers in upstream. Maros River which passes through the urban area has a watershed river that is vulnerable to conversion. The growth of conversion of non-built land into built-up areas in fact is rife in Watershed Maros. Developed watershed areas have the potential to cause ecological and hydrological disturbances that have an impact on flooding due to reduced water catchment areas and changing morphology of river basins. The first objective of this research is to determine the conditions of built-up areas and changes within the last 5 years in the Watershed Maros using overlapping map analysis method. The second purpose is to examine the effect of changes in built-up land use on flooding in Maros watershed area using simple linear regression analysis. The predictor variables used are land use change (X), with the criterion variable is the flood area (Y). The results showed that the land use change was built on the watershed area of Maros has increased quite highly, where 18.4 ha of land has been converted into a settlement. While the rice fields are changed to a settlement of 3.68 ha from 2015 to 2019. Changes on the use of built-up land that occurs have a strong and significant effect on increasing the area of  flood inundation in the watershed area of Maros

scholarly journals Evaluasi Pengaruh Rehabilitasi Lahan Dan Hutan Terhadap Koefisien Aliran Tahunan Di Sub Das Krueng Meuleusong

2021 ◽  
Vol 14 (2) ◽  
pp. 10-18
Author(s):  
Herry Andrisa ◽  
Hairul Basri ◽  
Muhammad Rusdi
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Satellite Imagery ◽  
Catchment Area ◽  
Secondary Forest ◽  
Flow Coefficient ◽  
Secondary Forests ◽  
Water Catchment Area ◽  
Water Catchment ◽  
Forest Rehabilitation

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh rehabilitasi lahan dan hutan (RHL) terhadap nilai koefisien aliran tahunan (KAT) di sub-DAS Krueng Meulesong. Pelaksanaan RHL di Desa Riting Kecamatan Indrapuri Kabupaten Aceh Besar yang termasuk dalam DAS Krueng Meuleusong dikategorikan tidak berhasil berdasarkan citra satelit perubahan tata guna lahan tahun 2009, 2014, 2017 dan 2019. Hasil interpretasi citra satelit menunjukkan penurunan luasan hutan sekunder, namun luas perdu dan sabana meningkat. Berdasarkan hasil uji korelasi menunjukkan bahwa pelaksanaan kegiatan RHL tidak berpengaruh terhadap perubahan penggunaan lahan menjadi hutan sekunder dan kegiatan RHL tidak berpengaruh terhadap nilai koefisien aliran tahunan (KAT) di Sub-DAS Krueng Meuleusong.Evaluation Of The Effect Of Land And Forest Rehabilitation On Annual Flow Coefficient In Krueng Meuleusong Sub-WatershedAbstract. This study aims to determine the effect of land and forest rehabilitation (RHL) on the value of the annual flow coefficient (KAT) in the Krueng Meulesong sub-watershed. The implementation of RHL in Riting Village, Indrapuri District, Aceh Besar District which is included in the water catchment area of the Krueng Meuleusong sub-watershed is categorized as unsuccessful based on satellite imagery of 2009, 2014, 2017 and, 2019 of land-use change. The results of satellite imagery interpretation showed a decrease in the area of secondary forest, but shrubs and savanna area had increased. Based on the results of the correlation test, shows that the implementation of RHL activities has no effect on changes in land use to secondary forests and RHL activities have no effect on the value of annual flow coefficient (KAT) in the Krueng Krueng Meuleusong sub-watershed.

scholarly journals Studi Penentuan Nilai Koefisien Pengaliran DAS Batang Arau di Kota Padang

2020 ◽  
Vol 15 (2) ◽  
pp. 55
Author(s):  
Fitri Handayani ◽  
Rahmania Hardiyenti ◽  
Indra Agus ◽  
Sadtim - ◽  
Hartati -
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Catchment Area ◽  
Mixed Forest ◽  
Natural Forest ◽  
Flow Coefficient ◽  
Runoff Coefficient ◽  
Application Study ◽  
Upstream Part ◽  
Forest Farm

Batang Arau river is located 0048” up to 0056” SL (South Latitude) and on 100021” up to 100033” LE (Longitutede East), and upstream part water catcment area it is cover 30,90 km2 area. The above said catchment area is a region consist of densely .populated and also dominated by vegetation of natural forest, protected forest, people’s forest, mixed forest, farm, recefield and yard. Based on site observation, most of the forest has changed become residant farms and settlement. This condition can be shown by land use map and change of runoff which was change from year to year. With this land use change however will also affecty changing of runoff coefficient. The goals of this study is to get flow coefficient (c) based on land use coefficient, debit AWLR, and based on SWAT application. Calculation of the coefficient based on land use map until be done by Arcgis method, debit AWLR using Hasper method and SWAT application. Study shown in period between 2009 – 2017, coefficient flow result is in range 0,36 – 0,37. Flow coefficient using AWLR result is in range 0,36 – 0,37, while flow coefficient using SWAT method is 0,25 – 0,36

scholarly journals Analisis Pengaruh Perubahan Penggunaan Lahan terhadap Debit Sungai (Studi Kasus : Sub DAS Cikeas)

2021 ◽  
Vol 6 (2) ◽  
pp. 121-132
Author(s):  
I Gede Aditya Dharma ◽  
Roh Santoso Budi Waspodo ◽  
Nora Pandjaitan
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
River Discharge ◽  
Catchment Area ◽  
Land Use Changes ◽  
Infiltration Capacity ◽  
Water Catchment Area ◽  
Green Area ◽  
Maximum Discharge ◽  
Water Catchment

Land use change have an impact on infiltration capacity. There is often an annual flood on Kadumanggu District. When the rainfall is high so the river will be overflow. The outlet of Cikeas sub-basin was located on Kadumanggu District. This research aimed to determine the maximum discharge of the Cikeas River and analyze the relation between land use change and discharge of Cikeas River. The research was conducted by delineating the water catchment area, analyzing rainfall, making a land use map and modeling with HEC-HMS. Based on the modeling results, the maximum discharge of the Cikeas River in 2000 was 74.3 m3/s, in 2009 was 84.9 m3/s, and in 2018 was 91.7 m3/s. The catchment area with an extensive use as residential had a higher river discharge compared to the area with a large green area. It meaned that, land use changes greatly affected the river discharge.

scholarly journals DAMPAK PERUBAHAN GUNA LAHAN TERHADAP KEMAMPUAN RESAPAN AIR (KASUS: KOTA SAMARINDA)

2019 ◽  
Vol 15 (1) ◽  
pp. 70 ◽  
Author(s):  
Warsilan Warsilan
Keyword(s):  
Land Use ◽  
Catchment Area ◽  
Infrastructure Development ◽  
City Development ◽  
Water Catchment Area ◽  
East Kalimantan ◽  
City Culture ◽  
Water Catchment ◽  
The Impact

As the capital of the province of East Kalimantan, Samarinda City developments has a rapid progress from year to year. Samarinda City Development has a tendency oriented towards infrastructure development without regard to the existence of the quality of the existing environment. Imbalance of development in Samarinda city is to start decreasing the water catchment area, so its make increasing intensity of flood in the Samarinda City. The purpose of this study was to analyze the impact of changes in land use in the Samarinda city on the ability of the water catchment area. This research method using descriptive approach, the data collection system of primary and secondary. Intensity flood in the Samarinda city  is increasing from year to year, this condition happened as a problem that always occurs during the rainy season. Current development trends, always take an area that should be an infiltration  area for Samarinda City. Culture and inadequate infrastructure conditions such as lack of system of drainage and polder, was another factor causing the high intensity of flood  in Samarinda City. Therefore, the relevant regulations development guidelines for Samarinda  City must consider all aspects of planning, in this case especially the important of a balance of cultivated land and protected areas or zones.Keywords: Changes in land use; intensity of puddles; Samarinda

scholarly journals DOMINANT FACTORS CHANGE OF LAND FUNCTION IN RAPUAN ROAD CORRIDOR UBUD BALI DUE TO TOURISM ACTIVITIES

ASTONJADRO ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 118
Author(s):  
Ni Nyoman Samitri Putri ◽  
Ngakan Ketut Acwin Dwijendra
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Descriptive Analysis ◽  
Land Use Changes ◽  
Secondary Data ◽  
Rice Fields ◽  
Internal Factors ◽  
Tourist Destinations ◽  
Tourist Accommodation ◽  
Collection Methods

<p>Bali is the most popular tourist destination with Ubud one of the tourist destinations with its beautiful landscapes and rice fields. Mas Village, Ubud is one of the tourist villages that has been inaugurated by the Gianyar Regency Government based on the Decree of the Gianyar Regent Number 429/E-02/HK/2017 regarding the establishment of a Tourism Village. Jalan Rapuan which is located in Tarukan Tourism Village, Mas is one of the strategic corridors in Mas Tourism Village because it is a stretch of rice fields that has a high tourism selling value. The purpose of this study is to identify changes in land use in 2013-2021 due to tourism activities seen from the aspects that have a dominant influence on land use changes. Quantitative method is the method used with primary and secondary data collection methods and stages of analysis in the form of descriptive analysis of tourism activities in Mas Village, statistical-descriptive analysis of land use change with overlay analysis on the Jalan Rapuan corridor. The results showed that there was a change in land use along the Rapuan corridor in 2013-2021 by 14% of the non-built land to be built in the form of tourist accommodation and housing. The indicators analyzed by factor analysis were able to explain important factors, namely external factors of 31.69%, internal factors of 23.821% and regulatory factors of 17.218% with a total of factors able to explain land use change of 72.73%.</p>

scholarly journals Pola Perubahan Penggunaan Lahan Sub Sub Daerah Aliran Sungai (DAS) Cikujang

2016 ◽  
Vol 9 (2) ◽  
pp. 147-156
Author(s):  
Devianti Devianti
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Protected Area ◽  
Catchment Area ◽  
Rice Field ◽  
Secondary Forest ◽  
Forest Area ◽  
Primary Forest ◽  
Change Pattern ◽  
Changing Rate

Abstrak. Sub Sub DAS Cikujang merupakan salah satu bagian dari Sub DAS Cimanuk hulu yang dapat menyumbang sedimen ke waduk Jatigede yang berasal dari erosi sebagai akibat perubahan penggunaan lahan yang tidak sesuai dengan kondisi fisik lahan. Hasil kajian memperlihatkan  pola perubahan penggunaan lahan di Sub Sub DAS Cikujang periode 1994-2009, terjadi perubahan penggunaan lahan dari kawasan lindung menjadi kawasan budidaya seluas 742,20 ha. Kawasan lindung pada tahun 1994 seluas 3.213,03 ha menurun menjadi 2.470,83 ha pada tahun 2009 dan kawasan budidaya pada tahun 1994 seluas 9.532,41 ha meningkat menjadi 10.274,61 ha pada tahun 2009 dengan laju perubahan 185,55 ha/tahun. Laju penurunan luasan hutan primer mencapai 54,45 ha/tahun, dan pada tahun 2009 tidak terdapat lagi lahan dengan fungsi sebagai hutan primer. Laju penurunan luasan hutan sekunder mencapai 135,90 ha/tahun dari 2.995,25 ha pada tahun 1994 menjadi 2.451,65 ha pada tahun 2009. Pola perubahan penggunaan lahan di Sub Sub DAS Cikujang sebagian besar dipengaruhi dengan pola perubahan hutan primer dan hutan sekunder pada kawasan lindung. Sedangkan pola perubahan penggunaan lahan pada kawasan budidaya dipengaruhi pola perubahan lahan kebun campuran, tegalan/ladang, perkebunan, dan sawah Land-Use Change Pattern in Cikujang Catchment Area Abstract. Cikujang catchment area is one part of the subzone Cimanuk that can contribute sediment upstream reservoirs to Jatigede derived from erosion as a result of changes in land use that is not in accordance with the physical condition of the land. Based on analysis result of land-use change pattern in Cikujang catchment area in 1994 – 2009 period, land-use had changed 742,20ha from protected areas to cultivated areas, where protected area had decreased from 3.213,03ha in 1994 to 2.470,83ha in 2009 and cultivated area had increased from 10.274,61 ha in 1994 to10.274,61 ha in 2009 with changing rate ha/year. The rate of decreasing primary forest area was 54.45ha/year, as a result there was no land function as primary forest in 2009.  The rate of decreasing secondary forest area was 135,90ha/year ranging from 2.995,25ha in 1994 to 2.451,65ha in 2009. Land-use change pattern in Cikujang catchment area dominantly was influenced by changing pattern of protected forest and secondary forest in protected area, but in cultivated area land-use change pattern was influenced by changing pattern of farm, grassland, and rice field.

Land use change and precipitation implication to hydro-meteorological disasters in Central Java: an overview

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Intan Hapsari Surya Putri ◽  
Imam Buchori ◽  
Wiwandari Handayani
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Quantitative Research ◽  
Rapid Development ◽  
Descriptive Analysis ◽  
Content Type ◽  
Central Java ◽  
Specific Analysis ◽  
The Impact ◽  
Meteorological Disasters

Purpose This study aims to prove that land-use change plays a role in the occurrence of hydro-meteorological disasters in Central Java, especially in relation to its upstream and downstream. Design/methodology/approach The paper presents empirical findings from quantitative research using a spatial analysis and descriptive analysis. Findings The upstream and downstream area of Central Java is categorized as a rapid development area that results in changes in land use and land cover. The findings showed that there was an increasing number of hydrometeorological disasters such as floods and landslides as the impact of land-use change and rainfall conditions. Research limitations/implications Analysis of the relationship between rainfall and disaster events with more technical and specific analysis could be done in the further research. Originality/value In this study, more analysis in the context of river basin systems including upstream and downstream in different periods to examine the linkage between them have been considered and incorporated.

Perception of Local People on Land Use Change

2021 ◽  
pp. 65-87
Author(s):  
H. M. Paba Herath ◽  
K. W. G. Rekha Nianthi
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Forest Fires ◽  
Catchment Area ◽  
Land Use Changes ◽  
Community Based ◽  
Long Period ◽  
Legal Frameworks ◽  
Effects Of Land Use ◽  
People’S Perceptions

The land use of the Belihuloya catchment area in Sri Lanka has been changing over a long period mainly due to the human activities. The study was aimed to find out the spatial and temporal changes of land use in the Belihuloya Mini Catchment area of 1956 to 2015, and obtain the local people's perception of the effects of land-use changes in Belihuloya. To study the people's perceptions of land use change, a questionnaire survey was conducted among randomly selected 180 households. Aerial data of 1956 and satellite data of 2015 were used to analyze the land use changes. The vegetation cover maps of 1956 and 2015, demonstrated the drastic changes of land use in Belihuloya. More than 50% of the respondents in the study area perceived that the land use has been changing due to the construction activities, forest fires, illegal loggings, pine and tea cultivation and the expansion of built-up areas. The deforestation has badly effected on water resources in the Belihuloya. The reforestation programs, including community-based reforestation programs can be introduced to minimize the impacts. It is necessary to implement existing legal frameworks with supports of different stakeholders to conserve the Belihuloya.

scholarly journals Study of Land Use Change from 1997 To 2014 Using Landsat Data In Bangli Regency

2018 ◽  
Vol 2 (2) ◽  
pp. 89
Author(s):  
Nuranita Naningsi ◽  
Takahiro Osawa ◽  
I Nyoman Merit
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Fresh Water ◽  
Paddy Field ◽  
Rapid Development ◽  
Landsat 8 ◽  
Landsat Data ◽  
Data Set ◽  
Dry Land ◽  
Bare Land

Bangli Regency is one of Regency in the Bali Province. The total area of  Bangli Regency is 52,081 hectares (9.24%) of total area of Bali Province (563,666 ha). The Growth and the development of the region Bangli Regency the positive impacts on the economy of the community, and the negative impacts on the environment. Land use change is one of the negative issue of development Bangli Regency. This study conduted the calculation of land use change from 1997 to 2014 using Landsat data in Bangli Regency. Landsat 5 TM, Landsat 7 ETM+ and Landsat 8 OLI/TIRS imageries were used to determine the land use map based, on using supervised classification method. The field data set the nine classes were classtuded based, on the classification were fresh water, bare land, forest, residential, bushes, irrigated paddy field, non irrigated paddy field, dry land and plantation. There results showed in land use changes from 1997 to 2014 that plantation increased (19,486.33 ha (36.89%)), and residential increased (1,872.00 ha (3.47%)), there is also a vast to reduction in dry land  (-10,868.90 ha (-21.21%)), forest (-6,333.34 ha (-12.24%)), irrigated paddy field (-1,619.50 ha (-3.17%)), bushes (-1,637.30 ha (-3.27%)), bare land (-63.00 ha (-0.17%)), non irrigated paddy field (-113.59 ha ( -0.26%)) and fresh water (-2.70 ha (-0.05%). The results accuracy rate was 89.45%. Anslyse of land use showed that the significant decrease of plantation area in Bangli Regency hill due to rapid development of infrastrusture of tourism and extensive residential area has increased particularly in sub district of the Kintamani District.

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