Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Jurnal Penelitian Pengelolaan Daerah Aliran Sungai

JPPDAS
Website

Published by Balai Litbang Teknologi Pengelolaan Daerah Aliran Sungai

ISSN : 25795511 EISSN : 25796097 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (JPPDAS) ) is an official publication that publishes scientific papers of research results in the field of watershed management. This Journal was published primarily by Watershe Management Technology Center on April 2017. Journal scopes include are land and vegetation management, soil and water conservation, land rehabilitation, hydrology, social, economic, institutional, remote sensing and Geographic Information Systems (GIS) that support watershed management technologies.

Arjuna Subject : -

Articles 67 Documents

3 4 5 6 7

WATERSHED MANAGEMENT APPROACH AS AN ALTERNATIVE SOLUTION FOR FLOOD PROBLEM IN NORTHERN PART OF CENTRAL JAVA (Pendekatan Pengelolaan DAS Sebagai Alternatif Solusi Masalah Banjir di Jawa Tengah Utara) Endang Savitri; Rahardyan Nugroho Adi; Pamungkas Buana Putra; Yonky Indrajaya, S.Hut. MT
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 1 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.1.21-38

ABSTRACTThe flood disaster in northern Central Java was caused by rainfall, the influence of tidal surges, and ground subsidence in various sites. This study aims to give alternative solutions to flood control in Central Java watersheds draining to the north coast. By identifying the flood water discharge areas, the amount of runoff causing flooding can be reduced. By overlaying maps of floodwater discharge, land cover, degraded land, and forest functions, 12 recomendations of forests and land rehabilitation (RHL) are obtained, suited to the area's concerns. The recommendations are planned only for the areas with vulnerable and highly vulnerable to floodwater discharge, so priority is given to activities that incorporate runoff into the ground as much as possible to reduce the flood volume. The RHL is grouped into the enrichment of plants in open areas with the function of forest areas, enhancing terraces to reduce erosion, increasing soil fertility, and constructing infiltration wells or bio pores. Of the 31 regencies/cities whose rivers flow into the north coast, there are 5 (five) regencies/cities whose RHL recommendations are applied to more than 50% of the area, namely Salatiga City (99%), Semarang district/city (76%), Jepara Regency (71%), Pekalongan Regency (55%), and Brebes Regency (51%) .Keywords: Flood vulnerability, land rehabilitation activities, flood disasterABSTRAKBencana banjir di Jawa Tengah bagian utara disebabkan oleh curah hujan, pengaruh gelombang pasang, dan penurunan muka tanah di berbagai lokasi. Penelitian ini bertujuan untuk memberikan alternatif solusi pengendalian banjir di DAS Jawa Tengah yang bermuara di pantai utara. Dengan mengidentifikasi daerah debit air banjir, jumlah limpasan yang menyebabkan banjir dapat dikurangi. Dengan overlay peta debit air banjir, tutupan lahan, lahan terdegradasi, dan fungsi hutan, diperoleh 12 rekomendasi rehabilitasi hutan dan lahan (RHL) yang sesuai dengan kepentingan kawasan. Rekomendasi RHL hanya direncanakan untuk daerah yang rawan dan sangat rentan terhadap debit air banjir, sehingga prioritas diberikan pada kegiatan yang sedapat mungkin memasukkan limpasan ke dalam tanah untuk mengurangi volume banjir. RHL dikelompokkan menjadi pengayaan tanaman di areal terbuka dengan fungsi kawasan hutan, peninggian terasering untuk mengurangi erosi, peningkatan kesuburan tanah, dan pembuatan sumur resapan atau biopori. Dari 31 kabupaten/kota yang sungainya bermuara di pantai utara, terdapat 5 (lima) kabupaten/kota yang rekomendasi RHL diterapkan lebih dari 50% wilayahnya, yaitu Kota Salatiga (99%), Kabupaten/Kota Semarang (76%), Kabupaten Jepara (71%), Kabupaten Pekalongan(55%), Kabupaten Brebes (51%).Kata kunci: Kerentanan banjir, kegiatan rehabilitasi lahan, bencana banjir

HUBUNGAN KERAGAAN BIOFISIK DAN MORFOMETRI DAERAH ALIRAN SUNGAI (DAS) KENALI BESAR, PROVINSI JAMBI DENGAN KONDISI HIDROLOGINYA (The Relationship between The Biophysical and Morphometry of The Kenali Besar Watershed, Jambi Province with Its Hydrological Conditions) Sunarti Sunarti; Diah Listyarini; Agus Kurniawan
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.199-220

ABSTRAKDegradasi Daerah Aliran Sungai (DAS) merupakan salah satu masalah lingkungan di banyak wilayah Indonesia. Permasalahan lingkungan utama dalam DAS adalah penggunaan lahan yang tidak sesuai dengan prinsip konservasi tanah dan air. Penggunaan lahan yang tidak bijak mempengaruhi fungsi hidrologi suatu kawasan. Gangguan respon hidrologi merupakan salah satu indikator kerusakan DAS. Tujuan penelitian adalah mengidentifikasi biofisik dan morfometri DAS serta menganalisis keterkaitannya dengan kondisi hidrologi DAS Kenali Besar. DAS Kenali Besar mencakup wilayah Kota Jambi dan Kabupaten Muaro Jambi. Penelitian dilaksanakan pada tahun 2020 dengan metode survai, dan data penelitian dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa DAS Kenali Besar berbentuk memanjang dengan kerapatan drainase sedang. Morfometri menunjukkan bahwa DAS Kenali Besar mempunyai waktu menuju puncak (time to peak) dan waktu penurunan aliran yang tergolong cepat. Hasil analisis menunjukkan bahwa DAS Kenali Besar beresiko banjir karena penggunaan lahan didominasi pemukiman (40,69%) yang mempunyai kapasitas dan laju infiltrasi yang tergolong rendah. Rasio debit aliran sesaat pada bagian tengah dan hilir masing-masing mencapai 54,10 m3/det dan 57,67 m3/det.Kata Kunci: fungsi hidrologi DAS, morfometri DAS, penggunaan lahan ABSTRACTWatershed degradation is one of the environmental problems in many parts of Indonesia. The main environmental problem in the watershed is land-use that does not consider soil and water conservation principles. Irresponsible land use will affect the hydrological function of an area. An impaired hydrological function is one indicator of watershed damage. The aim of the study was to identify and evaluate the biophysical conditions, watershed morphometry, and its relationship with the hydrological condition of the Kenali Besar watershed. The Kenali Besar watershed covers the area of Jambi City and Muaro Jambi Regency. The research was carried out in 2020 using a survey method and the research data were analyzed descriptively. The results showed that the Kenali Besar watershed has an elongated shape with medium drainage density. The watershed morphometry shows that the Kenali Besar has a relatively fast time to peak and decline in flow as well. The analysis shows that the Kenali Besar watershed has a flood risk because the land use is dominated by residential areas (40.69%), which has a relatively low capacity and infiltration rate. The ratio of instantaneous flow rates in the middle and downstream reaches 54.10 m3/s and 57.67 m3/s, respectively.Keywords: watershed hydrology function, watershed morphometry, land use

ANALISIS DEBIT BANJIR RANCANGAN DENGAN METODE HIDROGRAF SATUAN SINTETIS NAKAYASU DI SUB DAS KEDUANG (Analysis of planned flood discharge using the Nakayasu synthetic unit hydrograph in Keduang Sub Watershed) Esa Bagus Nugrahanto; Slamet Suprayogi; Mohammad Pramono Hadi; Rissa Rahmadwiati
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.111-124

ABSTRAKSub DAS Keduang merupakan daerah yang rawan terjadi bencana banjir. Hal ini terjadi karena tutupan lahan yang variatif diikuti dengan tutupan hutan yang rendah. Keadaan ini menyebabkan peningkatan air limpasan yang berpotensi menjadi banjir. Penelitian ini bertujuan untuk menganalisis debit banjir rancangan di Sub DAS Keduang dengan beberapa periode ulang. Penelitian dilakukan dengan analisis data sekunder tahun 2007-2018. Analisis curah hujan dilakukan dengan beberapa metode, yaitu metode normal, log normal, log pearson III, dan gumbel serta diuji dengan uji chi square dan kolmogorov smirnov. Analisis debit banjir rancangan menggunakan metode HSS Nakayasu. Hasil penelitian diperoleh bahwa analisis curah hujan yang dipilih adalah metode normal. Debit banjir rancangan diperoleh bahwa debit maksimum periode ulang 2 tahunan adalah 1.375,20 m3/detik, periode ulang 5 tahunan sebesar 1.724,92 m3/detik, periode ulang 10 tahunan 1.908,10 m3/detik, periode ulang 20 tahunan 2.057,97 m3/detik, periode ulang 25 tahunan 2.087,12 m3/detik, periode ulang 50 tahunan 2.228,67 m3/detik, periode ulang 100 tahunan 2.345,24 m3/detik, dan periode ulang 1000 tahunan sebesar 2.661,64 m3/detik. Hasil penelitian ini diharapkan dapat digunakan dalam perencanaan dan pengelolaan DAS untuk mitigasi bencana banjir di Sub DAS Keduang.Kata kunci: debit banjir rancangan, hidrograf satuan sintetis, nakayasu, analisis frekuensi, Sub DAS KeduangABSTRACTKeduang Sub Watershed was an area prone to flooding. This happens because of the varied land cover followed by low forest cover. This circumstance leads to an increase in runoff which has the potential to become flooded. This study aims to analyze the planned flood discharge in the Keduang Sub Watershed with several return periods. The study was conducted using secondary data analysis in 2007-2018. Rainfall analysis was performed by several methods, namely normal method, normal log, pearson III log, and gumbel and tested with chi square and kolmogorov smirnov tests. Planned flood discharge analysis was using the Nakayasu synthetic unit hydrograph method. Results showed that the rainfall analysis chosen is normal method. The planned flood discharge obtained that the maximum discharge of the 2-yearly return period was 1,375.20 m3/s, the 5-yearly return period was 1,724.92 m3/s, the 10-yearly return period was 1,908.10 m3/s, the 20-yearly return period was 2,057.97 m3/s, the 25-yearly return period was 2,087 m3/s, the 50-yearly return period of 2,228.67 m3/s, the 100-yearly return period of 2,345.24 m3/s, and the 1000-yearly return period of 2,661.64 m3/s. Flood discharges are increasing in the larger return period, and the largest flood discharge occurred in the 1000-yearly return period. The results of this study are expected to be used in watershed planning and management for flood disaster mitigation in Keduang Sub Watershed.Keywords: planned flood discharge, synthetic unit hydrograph, nakayasu, frequency analysis, Keduang Sub Watershed

ANALISIS TINGKAT PENYEBARAN PENCEMARAN SUNGAI TALLO DENGAN SISTEM INFORMASI GEOGRAFIS (SIG) (Analysis of the Pollution Distribution Level of the Tallo River using Geographic Information Systems (GIS)) Firdha Nurhikmah; Mery Selintung; Syafruddin Rauf
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.179-198

ABSTRAKKota Makassar merupakan salah satu kota padat penduduk dengan berbagai kegiatan industrinya. Diantara 15 kecamatan yang ada di wilayah Kota Makassar, delapan diantaranya dilintasi oleh Sungai Tallo. Penelitian ini bertujuan untuk menganalisis tingkat penyebaran pencemaran dan status mutu air perairan Sungai Tallo dengan menggunakan parameter suhu, TSS, pH, DO, BOD, dan COD. Penelitian dilakukan dengan membatasi serta membagi area penelitian menjadi 3 segmen sungai atas dasar perbedaan jenis tata guna lahan. Pengambilan sampel air Sungai Tallo dalam penelitian ini menggunakan SNI 6989.57:2008 tentang metode Pengambilan Contoh Air Permukaan. Kemudian dilakukan pengujian parameter kualitas air di lapangan dan di laboratorium. Dari hasil penelitian ini, berdasarkan standar kriteria mutu air kelas II PP No. 82 Tahun 2001, kualitas air Sungai Tallo pada lokasi penelitian ditinjau dari parameter fisika, nilai suhu memenuhi kriteria mutu sedangkan nilai TSS pada beberapa titik tidak memenuhi kriteria mutu. Ditinjau dari parameter kimia, nilai pH dan DO memenuhi kriteria mutu sedangkan nilai BOD dan COD tidak memenuhi kriteria mutu air. Status mutu air Sungai Tallo dihitung menggunakan metode Indeks Pencemaran secara keseluruhan masuk dalam kategori cemar ringan. Tingkat penyebaran pencemaran air Sungai Tallo per segmen menunjukkan pola yang fluktuatif, cenderung meningkat pada titik awal pengujian di segmen 1, kemudian menurun pada segmen 2 dan meningkat kembali pada titik pengujian pada segmen 3.Kata kunci: analisis spasial, pencemaran, Sungai Tallo, SIG ABSTRACTMakassar City is one of the densely populated cities with various industrial activities. Among the 15 sub-districts in the Makassar City area, eight of them are crossed by the Tallo River. This study aims to analyze the level of spread of pollution and the water quality status of the water at the Tallo River using the parameters of temperature, TSS, pH, DO, BOD, and COD. The research was conducted by delimiting and dividing the research area into 3 river segments based on different types of land use. Sampling of Tallo River water in this study used SNI 6989.57:2008. The water quality parameters were tested in the field and in the laboratory. From the results of this study, based on the standard criteria for class II PP No. 82 of 2001, the water quality of the Tallo River at the research site in terms of physical parameters, the temperature value meets the quality criteria, while the TSS value at several points does not meet the quality standard criteria. In terms of chemical parameters, the pH and DO values meet the quality criteria, while the BOD and COD values does not. The water quality status of the Tallo River is then calculated using the Pollution Index method. Overall, it is categorized as lightly polluted. If broken down per segment, the distribution of water pollution levels in the Tallo River shows a fluctuating pattern, tending to increase at the first segment test point, decrease at the segment 2 test point, and increase again at the last segment test point.Keywords: spatial analysis, pollution, Tallo River, GIS

ANALISIS SPASIAL POTENSI RESAPAN AIR UNTUK MENDUKUNG PENGELOLAAN DAERAH ALIRAN SUNGAI (DAS) UNDA PROVINSI BALI (Spatial Analysis of Water Infiltration Potential to Support The Management of Unda Watershed in Bali Province) W Wiyanti; Ketut Dharma Susila; R Suyarto; Moh Saifulloh
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.111-124

ABSTRAKDaerah Aliran Sungai (DAS) Unda masuk dalam kategori DAS prioritas, yang sebagian wilayahnya termasuk kategori lahan kritis. Kondisi penutupan lahan dengan dominasi kerapatan vegetasi rendah berimplikasi terhadap rendahnya kapasitas infiltrasi dan resapan air, sehingga berpotensi memperbesar aliran permukaan. Penelitian ini bertujuan mengidentifikasi potensi resapan air sebagai dasar perencanaan kegiatan pengelolaan DAS. Metode yang digunakan dalam penelitian ini adalah metode skoring dengan 4 parameter, yaitu jenis tanah, penggunaan lahan, kemiringan lereng, dan curah hujan. Analisis data spasial dilakukan dengan menggunakan perangkat Sistem Informasi Geografis (SIG). Perumusan rekomendasi kegiatan pengelolaan DAS dilakukan secara deskriptif, berdasarkan hasil analisis potensi resapan air. Hasil penelitian menunjukkan kondisi resapan air di daerah penelitian tergolong baik (22,54%), sangat kritis (18,20%), normal (17,92%), dan agak kritis (7,99%). Kegiatan pengelolaan DAS yang direkomendasikan yaitu reboisasi secara periodik, pembuatan teras bangku/teras tradisional, pembuatan sumur resapan/lubang biopori pada daerah pemukiman serta integrasi peran kelembagaan DAS dari hulu sampai hilir secara sinergisKata kunci: Daerah Aliran Sungai (DAS), daerah resapan air, potensi resapan air, DAS Unda, Sistem Informasi Geografis (SIG) ABSTRACTThe Unda Watershed is categorized as the priority watershed, which part of its area is degraded land. The condition of land cover with the dominance of low-density vegetation has implications for low infiltration and water absorption capacity, so that it has the potential to increase surface runoff. This study aims to identify the potential for water absorption as the basis for watershed management planning. The method used in this study is scoring with four parameters, namely soil type, land use, slope, and rainfall. Spatial data analysis uses Geographic Information System (GIS). The formulation of recommendations for watershed management activities is carried out descriptively, based on the findings of the analysis of water absorption potential. The results showed that the water recharge conditions in the study area were classified as good (22.54%), very critical (18.20%), normal (17.92%), and less critical (7.99%). The recommended watershed management is periodic reforestation, construction of bench/traditional terraces, construction of infiltration wells/biopori holes in the residential areas, and synergistic integration of the roles of watershed institutions from upstream to downstream.Key words: watersheds, water catchment areas, water infiltration potential, Geographic Information System (GIS), Unda watershed

KARAKTERISTIK VEGETASI, HARA NITROGEN DAN KARBON ORGANIK TANAH PADA TEGAKAN HUTAN TAMAN NASIONAL GUNUNG-MERBABU DAN TEGALAN (The Characteristics of Vegetation, Soil Nutrients of Nitrogen and Soil Organik Carbon at Forest Stands of Mount-Merbabu National Park and Dry Field) Jaka Suyana; Wisnu Krismonanto; Endang Setia Muliawati; Hery Widijanto
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.141-160

ABSTRAKPulau Jawa yang beriklim tropik basah memiliki beranekaragam tegakan vegetasi. Penelitian ini bertujuan untuk mengkaji pengaruh tegakan vegetasi hutan (Pinus/Pinus merkusii, Puspa/Schima noronhae theaceae, Akasia/Acacia decurren fabaceae, Bintamin/Cupressus sp, dan tanaman campuran) dan tegalan di lereng Gunung Merbabu, Taman Nasional Gunung Merbabu di Kabupaten Boyolali Propinsi Jawa Tengah terhadap tingkat kesuburan tanah, yaitu kandungan hara N dan karbon organik tanah pada kedalaman 0-30 cm (0-10, 10-20, dan 20-30cm). Penelitian ini menggunakan metode survei dan analisa laboratorium. Untuk pengamatan karakteristik vegetasi dibuat SPP (Satuan Plot Pengamat) berukuran 50 m x 50 m dan diulang 3 kali, sedangkan untuk analisis hara N dan karbon organik tanah dilakukan pengambilan contoh tanah pada kedalaman tanah 0-30 cm (0-10, 10-20, dan 20-30cm) dan diulang 3 kali. Parameter yang dianalisis adalah: N-total, C-organik dan BD (bulk density) tanah. Data hasil penelitian dianalisis secara deskriptif, dilanjutkan uji-F, uji DMRT taraf 5%, dan uji korelasi. Hasil penelitian menunjukan bahwa tegakan hutan TNG-Merbabu mempunyai kerapatan jenis tertinggi pada tegakan hutan puspa, diikuti campuran, pinus, akasia, dan bintamin. Kandungan N-total dan C-organik tanah mengalami penurunan sejalan dengan peningkatan kedalaman tanah (0-10, 10-20, dan 20-30 cm); pada kedalaman 0-10 cm kandungan N-total tanah tertinggi pada tegakan hutan puspa (1,34%), sementara akasia adalah 0,74%, dan tegalan 0,34%. Kandungan C-organik tanah tertinggi terdapat pada tegakan hutan puspa yaitu 9,53%, sedangkan pinus sebesar 2,85%, dan tegalan 2,12%. Berdasarkan kerapatan jenis dan kandungan N-total dan C-organik tanah, Puspa (Schima noronhae theaceae) dapat direkomendasikan sebagai jenis tanaman penghijauan (reboisasi hutan) yang baik.Kata kunci: kerapatan jenis, karbon organik tanah, N-total, hutan TNG-Merbabu, puspa, tegalanABSTRACTJava island, which has a wet tropical climate, has a variety of vegetation stands. This study examines the characteristics of vegetation, nutrient levels of N, and soil organic carbon (SOC) under forest stands of Mount-Merbabu National Park (Pine/Pinus merkusii, Puspa/Schima noronhae theaceae, Acacia/Acacia decurren fabaceae, Bintamin/Cupressus sp, and Mixed) and dry field at a soil depth of 0-30 cm (0-10, 10-20, 20-30cm). Observations the characteristics of vegetation were made by Observing Plot Units measuring 50 m x 50 m with 3 replications, while the observations of N nutrients and SOC included: total-N, Organic-C, and bulk density soil with 3 replications as well. The research data were analyzed descriptively, followed by the F-Test and DMRT Test at 5% level. The results showed that the forest stands of Mount-Merbabu National Park has the highest species density value in Puspa forest stand, followed by Mixed, Pine, Acacia, and Bintamin. Soil N-total and C-organic content decreased with the increasing soil depth. The highest soil total-N content in the depth of 0-10 cm was in the Puspa forest stand (1.34%), while Acacia is 0.74%, and dry field is 0.34%. The highest of soil organic-C content was in the Puspa forest stand (9.53%), the lowest was Pine (2.85%) and dry field (2.12%). Puspa (Schima noronhae theaceae) can be recommended as a good type of reforestation plant.Keywords: species density, soil organic carbon, N-total, forest of Mount-Merbabu national park, puspa, dry field

DINAMIKA PERUBAHAN PENGGUNAAN LAHAN DI SUB DAS CIRASEA (DAS CITARUM HULU) (The Dynamics of Land Use Change in The Cirasea Sub-Watershed (Citarum Hulu Watershed)) Davik - -; Latief Mahir Rachman; Yayat Hidayat; Iwan Ridwansyah
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.161-178

ABSTRAKSub DAS Cirasea merupakan salah satu Sub DAS yang memiliki peran penting dalam pengelolaan DAS Citarum Hulu. Penurunan fungsi lahan berdampak pada sistem hidrologi DAS. Hal ini disebabkan oleh perubahan penggunaan lahan. Perubahan penggunaan lahan tersebut ditentukan melalui analisis hasil klasifikasi menggunakan dengan algoritma Maximum Likelihood Classification (MLC) pada software QGIS. Klasifikasi penggunaan lahan menggunakan Citra Landsat tahun 2009-2019. Hasil klasifikasi meliputi hutan, hutan sekunder, lahan terbangun, lahan terbuka, perkebunan, pertanian lahan kering, sawah, semak belukar dan tubuh air. Uji akurasi dengan Indeks Kappa mencapai 85,15% atau hampir sempurna. Klasifikasi penggunaan lahan yang terjadi menunjukkan perubahan luas antara tahun 2009 dan 2019. Lahan yang mengalami penurunan yaitu hutan 1.437,13 ha, sawah 1.336,21 ha, hutan sekunder 367,83 ha dan pertanian lahan kering 94,14 ha. Sedangkan lahan yang mengalami peningkatan yaitu lahan terbuka 1476,69 ha, lahan terbangun 1.056,39 ha, semak belukar 463,63 ha, perkebunan 235 ha dan tubuh air 3,07 ha.Kata Kunci: daerah aliran sungai, fungsi hidrologi, MLC, Indeks Kappa, penggunaan lahan ABSTRACTThe Cirasea sub-watershed is one of the sub-watersheds that has an important role in the management of the Upper Citarum watershed. The decline in land use has an impact on the hydrological system of the watershed, which is caused by changes in land use. The land-use change is determined by analyzing the results of the classification using the Maximum Likelihood Classification (MLC) algorithm in QGIS software. Land use classification using Landsat Image 2009-2019. The classification results include forest, secondary forest, built-up areas, open land, plantations, dryland farming, rice fields, shrubs, and water bodies. The accuracy test using the Kappa Index reached 85.15% or almost perfect. The land use classification that occurs shows changes in the area between 2009 and 2019. The land that has decreased is 1,437.13 ha of forest, 1,336.21 ha of rice fields, 367.83 ha of secondary forest, and 94,148 ha of dryland farming. Meanwhile, land that has increased is 1,476.69 ha of open land, 1,056.39 ha of built-up areas, 463.63 ha of shrubs, 235 ha of plantations, and 3.07 ha of water bodies.Keywords: watershed, hydrological function, MLC, Kappa Index, land use

Page 7 of 7 | Total Record : 67

3 4 5 6 7

Filter by Year

2017 2022

Filter By Issues

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
sekretariat_jppdas

Contact Email
sekred.jppdas@gmail.com

Phone
-

Journal Mail Official
bpt.kpdas@gmail.com

Editorial Address
-

Location
,

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name sekretariat_jppdas

Contact Email sekred.jppdas@gmail.com

Phone -

Journal Mail Official bpt.kpdas@gmail.com

Editorial Address -

Location , INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
sekretariat_jppdas

Contact Email
sekred.jppdas@gmail.com

Phone
-

Journal Mail Official
bpt.kpdas@gmail.com

Editorial Address
-

Location
,

INDONESIA