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Jurnal Sumberdaya Alam dan Lingkungan
Published by Universitas Brawijaya
ISSN : 23563389     EISSN : 26559676     DOI : https://doi.org/10.21776/ub.jsal
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
JSAL is a journal under the management of the Environmental Engineering Study Program, Agricultural Technology Faculty, Brawijaya University Indonesia which has been established since 2014. The journal periodically publishes three issues in April, August, and December. JSAL accepts article in Bahasa Indonesia or English by covering topics on natural and environmental resource engineering and other related topics. JSAL has been indexed by Google Scholar, GARUDA (Garba Rujukan Digital) and Crossref (DOI/Digital Object Identifier) and Science and Technology Index (SINTA). Also JSAL already has an International Standard Serial Number (ISSN) in both the online (E-ISSN 2655-9676) and print version (P-ISSN 2356-3389). We are looking forward to accepting articles from potential authors, please kindly search our homepage for information and instruction or contact us.
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Articles 204 Documents
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Managing Movement of Returning Rice Straw into Soil (RRIS): A Solution to Land Degradation Mimin Aminah; Muhammad Firdaus; Arief Hartono; Gelar Satya Budhi
Jurnal Sumberdaya Alam dan Lingkungan Vol 9, No 3 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2022.009.03.5

Abstract

Concern on rice production in Indonesia is escalating since the production of rice tends to be levelling off for more than a decade. Soil degradation in lowland is among the main challenges. Soil encounters continuous decreasing organic matter and organic carbon content because the biomass from the rice plants was not returned to the land sufficiently. Most of the biomasses went out of the land or were burned by rice producers since there was not enough time to decompose the biomass before returning into the soil of lowland or it need additional cost to do so.  Most farmers preferred to return the rice straw after burning, but it will not improve the condition. Otherwise, burning of rice straw caused air pollution since it released at least three kg particulate matter consisting of CO, SO2, CO2, and ash. Using interpretive structural modeling (ISM) this paper is trying to find the important factors with sequential solution. The result shows that encouraging rice producers to return rice straw into soil (RRIS) should start with Provision of Immediate Decomposing Technology and assistance program and Credit and Assistance Program.Keywords : managing soil degradation, organic matter, rice straw, ISM
Karakteristik Fisik Kompos Blok Dari Campuran Fly Ash Bottom Ash (FABA), Dengan Sludge Black Water dan Kotoran Ternak Putri Setiani; Akbar Febriansyah; Hafidz Imanudin; Metta Octavia Pujakumara
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.01.2

Abstract

ABSTRAK Penggunaan energi batu bara secara besar-besaran dapat menghasilkan abu pembakaran yaitu FABA (Fly Ash dan Bottom Ash) yang mengandung unsur logam berat yang membahayakan apabila terlepas ke media lingkungan. Pemupukan merupakan salah satu pengaplikasian dalam peran mengurangi jumlah FABA yang dapat dimanfaatkan untuk kesuburan  tanaman serta lebih lanjutnya pembuatan kompos blok dapat dimanfaatkan sebagai media tanam yang bisa membantu pembibitan reklamasi lahan pasca tambang. Penelitian ini bertujuan untuk mengetahui komposisi campuran bahan organik dan abu batu bara (FABA) yang paling baik dalam pembuatan kompos blok sesuai SNI 19-7030-2004, mengetahui nilai tekanan pencetakan agar dapat dihasilkan produk kompos blok yang ideal dan untuk mengetahui kompos blok yang paling baik berdasarkan parameter sifat fisik, daya serap air, densitas dan kuat tekan bahan pada pengaplikasiannya dalam bentuk kompos blok. Penelitian ini menggunakan bahan-bahan organik yaitu FABA, sludge black water (SBW), kotoran ternak (KT), sekam padi, dan EM4 sebagai aktivator bakteri pembusukan kompos. Dalam pembuatan kompos blok menggunakan 2 jenis variasi starter, yaitu 100% KT dan 100% SBW serta dalam perlakuannya, kompos blok dicetak menggunakan 2 jenis perlakuan kuat tekan yaitu 200 psi dan 300 psi menggunakan alat pencetak kompos blok. Penelitian ini menggunakan model Rancangan Acak Lengkap (RAL) dan dilanjutkan dengan Beda Nyata Terkecil (BNT). Hasil penelitian ini menunjukkan bahwa kompos blok dapat dibuat dengan mencampurkan bahan organik dan FABA dengan perekat tapioka, tekanan pencetakan yang paling baik adalah pada kuat tekan 300 psi dan perlakuan terbaik dari segi densitas, daya serap air, dan kuat tekan serta dibandingkan dengan SNI 19-7030-2004 dan P3 adalah perlakuan terbaik. Kata kunci: batubara, dekomposisi, fly ash-bottom ash, kompos blok ABSTRACT  The massive use of coal energy can produce combustion ash that contains heavy metal elements that are harmful when released into environmental media. Fertilization is one of the applications in the role of reducing the amount of FABA that can be used for plant fertility and furthermore, block composting can be used as a planting medium that can help nursery post-mining land reclamation. This study aims to determine the composition of the mixture of organic matter and coal ash (FABA) which is best in making compost blocks according to SNI 19-7030-2004, find out the value of printing pressure in order to produce the ideal block compost product and to find out the best block compost based on the parameters of physical properties, water absorption, density and compressive strength of the material in its application in the form of compost blocks. This study used organic materials, namely FABA, sludge black water (SBW), manure (KT), rice husks, and EM4 as an activator of compost rot bacteria. In making block compost using 2 types of starter variations, namely 100% KT and 100% SBW and in the treatment, block compost is printed using 2 types of compressive strength treatment, namely 200 psi and 300 psi using a block compost printer. This study used the Complete Randomized Design model then a follow-up test of the Least Significant Different (LSD) was carried out. The results of this study show that compost blocks can be made by mixing organic matter and FABA with tapioca adhesive, The best printing pressure is at a compressive strength of 300 psi and the best treatment in terms of density, water absorption, and compressive strength and compared with SNI 19-7030-2004 and P3 is the best treatment. Keywords: coal, decompostion, fly ash-bottom, compost block
Cellulase Activity Bacillus sp. Which Was Grown on A Medium with Aluminum Salt and Magnetic Field Exposure Lailatul Farihah; Sumardi Sumardi; C. N. Ekowati; Sutopo Hadi
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.01.3

Abstract

ABSTRAK Aluminium adalah jenis kofaktor logam terbaik. Pemaparan medan magnet 0,2mT pada garam aluminium mampu meningkatkan aktivitas enzim selulase pada bakteri Bacillus sp. Penelitian ini bertujuan untuk mencari jenis garam aluminium terbaik untuk meningkatkan aktivitas enzim selulase. Aktivtas enzim diuji dengan dua cara yaitu Uji Indeks Selulolitik dan Uji Aktivitas Enzim dengan spektrofotometer. Penelitian ini adalah penelitian deskriptif dengan tiga perlakuan yaitu kontrol, penambahan garam aluminium tanpa paparan medan magnet, dan penambahan garam aluminium yang dipaparkan medan magnet. Jenis garam aluminium yang digunakan adalah AlCl3, Al2(PO4)3, dan Al2(SO4)3. Konsentrasi garam aluminium yang digunakan adalah 0.01% dan pemaparan medan magnet 0.2 dilakukan selama 10 menit. Hasil penelitian ini membuktikan bahwa aluminium mampu menjadi kofaktor enzim yang efektif. Pemaparan medan magnet pada garam aluminium mampu meningkatkan aktivitas enzim. Jenis garam aluminium terbaik adalah AlCl3 yang dipaparkan medan magnet 0,2mT selama 10 menit. Perlakuan ini mampu meningkatkan aktivitas enzim selulase sebesar 0.69 U/mL. Kemudian Al2(PO4)3 mampu meningkatkan aktivitas enzim sebesar 0.41 U/mL dan Al2(SO4)3 meningkatkan aktivitas sebesar 0.39 U/mL. Kata kunci: aktivitas selulolitik, garam aluminium, indeks selulolitik, medan magnet ABSTRACT Aluminum is the best metal cofactor enzyme. Exposure to the 0,2mT magnetic field on Aluminium salt is said to be able to increase cellulolytic activity. The purpose of the research is to know if the best aluminum salt can increase cellulolytic activity. This can be tested by Cellulolytic Index Test and Enzyme Activity Test. This experiment is descriptive research with three treatments; control, the addition of aluminum salt without an exposed magnetic field, and added aluminum salt exposed to a magnetic field. Salt aluminum used are AlCl3, Al2(PO4)3, and Al2(SO4)3. The concentration was 0.01% and exposed to a magnetic field of 0.2mT. The final results tell that aluminum is an effective cofactor. Exposure to a magnetic field on aluminum salts showed an increase in enzyme activity. The best result is AlCl3 exposed to a 0.2mT magnetic field. This was able to increase the cellulolytic activity by 0.69U/mL. Then Al2(PO4)3 increased enzyme activity by 0.41U/mL and Al2(SO4)3 increased activity by 0.39U/mL. Keywords: cellulolytic activity, aluminum salt, cellulolytic index, magnetic field
Case Study of Drinking Water Distribution Network System PERUMDA Delta Tirta Water Treatment Plant (IPA) Tawangsari Service Zone Taman District and Waru District Saeril Barikiyah; Abdul Hakim; Sulitiya Nengse
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.01.4

Abstract

ABSTRAK  Tingkat kehilangan air  menurut Menteri Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia No 27/PRT/M/2016 pada batas maksimum yaitu sebesar 20%, akan tetapi pada tingkat kehilangan air PERUMDA Delta Tirta pada zona pelayanan Kecamatan Taman yaitu sebesar 27.48, zona pelayanan Kecamatan Waru I tingkat kehilangan air sebesar 32.28% dan zona pelayanan Kecamatan Waru II tingkat kehilangan air sebesar 20.52%. tujuan pada penelitian ini untuk mengevaluasi tingkat kehilangan air pada zona pelayanan Kecamatan Taman dan zona pelayanan Kecamatan Waru. Metode evaluasi pada jaringan distribusi IPA Tawangsari dengan simulasi software Epanet 2.0 dengan tekanan air dalam pipa dan kecepatan air dalam pipa dibandingka dengan Menteri Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia No 27/PRT/M/2016. Tekanan air dalam pipa pada zona pelayanan Kecamatan Taman yaitu sebesar 55.18 m, kecepatan air dalam pipa sebesar 0.1 m/s dan tekanan air dalam pipa pada zona pelayanan Kecamatan Waru yaitu sebesar 59.57 m, kecepatan air dalam pipa sebesar 1.58 m/s. Optimalisasi sistem jaringan distribusi IPA tawangsari zona pelayanan Kecamatan Taman dan zona pelayanan Kecamatan Waru yaitu dengan pergantian Head pompa. Mengganti head pompa merupakan salah satu solusi untum menghilangkan tekanan yang berlebihan, dan mengurangi kerusakan pada pipa. Kata kunci: distribusi, Sofware Epanet 2.0, tekanan ABSTRACT  The water loss rate according to the Minister of Public Works and Public Housing of the Republic of Indonesia No. 27/PRT/M/2016 at the maximum limit is 20%, but at the PERUMDA Delta Tirta water loss rate in the Taman Subistrict service zone is 27.48, the Waru Subdistrict service zone I the water loss rate is 32.28% and the service zone of Waru II District the water loss rate is 20.52%. The purpose of this study was to evaluate the level of water loss in the service zone of the Taman District and the Waru District service zone. The evaluation method for the Tawangsari IPA distribution network is using the Epanet 2.0 software simulation with water pressure in the pipes and water velocity in the pipes compared to the Minister of Public Works and Public Housing of the Republic of Indonesia No. 27/PRT/M/2016. The water pressure in the pipe in the Taman Subdistrict service zone is 55.18 m, the water velocity in the pipe is 0.1 m/s and the water pressure in the pipe in the Waru District service zone is 59.57 m, the water velocity in the pipe is 1.58 m/s. Optimization of the Tawangsari WTP distribution network system in the Taman Subistrict service zone and the Waru Subdistrict service zone, namely by changing the pump head. Replacing the pump head is one of the solutions to eliminate excessive pressure and reduce damage to the pipe. Keywords: distribution, software Epanet 2.0, pressure
Perbandingan Kangkung Air (Ipomoea Aquatica Forck) dan Mikroorganisme Dalam Upaya Menurunkan Logam Kromium hexavalent(Cr(VI)) pada Air Sungai Yasa Palaguna Umar; Fajri Anugroho; Usman Tahir
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.01.5

Abstract

ABSTRAK Pencemaran yang terkandung dalam limbah cair yang mengandung Cr(VI)merupakan ancaman yang cukup serius bagi kelestarian lingkungan karena selain merupakan pencemar yang bersifat racun bagi organisme perairan, pencemar tersebut juga mempengaruhi sifat fisik, kimia, dan biologi lingkungan perairan serta memiliki zat yang dapat menyebabkan penyakit kanker. Tanaman Kangkung Air (Ipomoea Aquatica Forsk) memiliki potensi menurunkan kandungan Cr6+  Sehingga penelitian ini bertujuan untuk mengetahui kemampuan kangkung air dalam menurunkan kadar Cr(VI) dan kemampuan mikroorganisme pada air sungai dalam mendegradasi kadar Cr(VI). Penelitian ini dilakukan secara berkala selama 4 kali dari hari ke-0, 3, 5, dan 7. Pada tahap pertama menganalisis kemampuan mikroorganisme yang terdapat pada air sungai dalam mendegradasi logam berat dengan mengukur konsentrasi Cr(VI) menggunakan colorimeter. Analisis selanjutnya mengukur konsentrasi Cr(VI) pada tanaman kangkung air. Berdasarkan hasil pengamatan maka dapat diketahui bahwa mikroorganisme pada air sungai dapat menurunkan kandungan Cr(VI) lebih dari 75% dari hari ke-0 kandungan Cr(VI) sebesar 0,42 mg/L menjadi 0,10 mg/L pada hari ke-7. Namun, jika dilihat dari hasil penelitian maka kemampuandari kangkung air tidak signifikan, karena hanya dapat menyerap sebagian kecil dari Cr(VI). Sehingga dapat disimpulkan bahwa mikroorganisme dapat menurunkan kadar Cr(VI) lebih cepat dibandingkan kangkung air. Sedangkan pada hasil penelitian pH tetap dalam kondisi netral tidak mengalami perubahan yang signifikan. Kata kunci: colorimeter, limbah cair, logam berat, pH ABSTRACT  Pollution in liquid waste containing Cr(VI) is a severe threat to environmental sustainability because apart from being a toxic pollutant to aquatic organisms, the pollutant also affects the aquatic environment's physical, chemical, and biological characteristics and has substances that can cause cancer. Water spinach plants (Ipomoea Aquatica Forsk) can potentially reduce Cr6+ content. So this study aims to determine the ability of water spinach to reduce Cr(VI) levels and the ability of microorganisms in river water to degrade Cr(VI) levels. This research was conducted periodically four times from days 0, 3, 5, and 7. In the first stage, the ability of microorganisms in river water to degrade heavy metals was analyzed by measuring the concentration of Cr(VI) using a colorimeter. The subsequent analysis measured the Cr(VI) concentration in water spinach plants. Based on the observations, it can be seen that microorganisms in river water can reduce the Cr(VI) content by more than 75% from the 0th day, the Cr(VI) content of 0.42 mg/L to 0.10 mg/L on the third day 7. However, from the research results, water spinach's ability is insignificant because it can only absorb a small portion of Cr(VI). So it can be concluded that microorganisms can reduce Cr(VI) levels faster than water spinach. Meanwhile, in the research results, the pH remained in a neutral condition and did not experience a significant change. Keywords:  colorimeter, liquid waste, heavy metals, pH
Penerapan Teknologi Constructed Wetland (CW) dalam Menurunkan Kadar Cemaran pada Air Limbah Domestik Muhammad Al Kholif; Pungut Pungut; Septian Indra Nezarudin
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.01.1

Abstract

ABSTRAK Terjadinya pencemaran badan air akibat pembuangan air limbah domestik di wilayah perkotaan seperti di Gresik sudah menjadi hal yang biasa. Hal ini dapat menyebabkan terjadinya penurunan kualitas air dan dapat mempengaruhi biota air dan kesehatan manusia. Untuk mengurangi timbulan permasalahan yang ada, maka perlu dilakukan suatu penanganan dengan melakukan pengolahan dengan menggunakan teknologi Contructed Wetland (CW). Penelitian ini memiliki tujuan utama yaitu untuk mengidentifikasi efektifitas teknologi CW dalam menghilangkan pencemar COD, DO dan BOD pada air limbah domestik. Teknologi CW yang diterapkan dalam penelitian ini dirancang dalam skala laboratorium dengan jumlah reaktor yaitu 3 (tiga) reaktor. Variabel bebas dalam penelitian ini yaitu perbedaan jenis tanaman, dimana masing-masing reaktor secara berturut-turut diberi tanaman seperti tanaman melati air, bambu air, dan kombinasi dari kedua jenis tanaman. Semua rekator pengolahan menggunakan media tanam dari kerikil dengan ketinggian 20 cm. Pengambilan sampel olahan dilakukan sebanyak 3 kali dengan waktu tinggal selama 12 jam. Hasil penelitian menunjukan bahwa nilai efisiensi terbaik untuk ke-3 reaktor terjadi pada rekator 3 dengan masing-masing nilai efisiensi untuk kadar COD, DO, dan BOD yaitu 19%, 60%, dan 24%.Kata kunci: air limbah domestik, bambu air, constructed wetland, melati air ABSTRACT The happened of pollutants in water bodies due to domestic wastewater disposal in urban areas such as Gresik has become a common thing. This can cause decreased water quality and affect aquatic and human health. To reduce the emergence of existing problems, it is necessary to do the treatment by processing using CW technology. This study aims to identify CW technology's effectiveness in removing COD, DO, and BOD pollutants in domestic wastewater. CW technology applied in this study was designed on a laboratory scale with 3 (three) reactors. The independent variable in this study is the different types of plants, where all reactors are given plants, such as water jasmine, water bamboo, and a combination of two kinds of plants. All processing reactors use gravel planting media with a height of 20 cm. Processed sampling was carried out thrice with a residence time of 12 hours. The results showed that the best efficiency values for the three reactors occurred in reactor 3 with efficiency values for COD, DO, and BOD levels, namely 19%, 60%, and 24%, respectively.Keywords: domestic wastewater, water bamboo, constructed wetland, water jasmine
Determination of Pollutant Index (PI) for Assessing the Quality of Groundwater in the Area of Sidoarjo Mud (LUSI) Sidoarjo, East Java, Indonesia Ilham Putra Adiyaksa; Oleg G. Savichev
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 2 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.02.1

Abstract

Sidoarjo mud (well known as LUSI) have been occurred since 2006 in Sidoarjo, East Java, Indonesia and gives many impacts to many aspects, as well as environment and water quality condition. One of the major concerns is water quality problem, especially in this current situation in 2022 since clean water still needed by local people and groundwater is the main water source for many local people in this area. Our previous study has carried out to assess the ecological and geochemical conditions of groundwater in the area around Sidoarjo mud in 2022. In this study, by using Pollutant Index (PI) calculation, the water quality classification will be determined from several samples and parameters in various places, including Tanggulangin, and Porong, Sidoarjo, East Java. From the calculation result, based on Pollution Index (PI) value, water in Tanggulangin is categorized as good water (clean water), while water in Porong is categorized as good water (clean) as well for sample B3, and the rest is categorized as lightly polluted water with sample B5 as the most contaminated. Groundwater in the area near to Sidoarjo mud is contaminated by NO2-, Mn, and Hg.
Perubahan Tutupan Lahan dan Stok Karbon Permukaan di Daerah Aliran Sungai (DAS) Blega Fahmi Arief Rahman; Nurlaila Mubarokah; Erick Yuhardi; Agung Adiputra; Slamet Supriyadi; Sinar Suryawati
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 2 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.02.3

Abstract

ABSTRAK  Emisi karbon merupakan isu yang sangat berdampak pada pemanasan global, peningkatan bencana hidrometeorologi dan penurunan sumberdaya alam. Salah satu cara mengurangi emisi karbon adalah mencegah perubahan tutupan lahan terutama hutan pada daerah tropis seperti Kawasan DAS Blega. Penelitian ini bertujuan untuk melihat perubahan tutupan lahan dan dan pengaruhnya terhadap stok karbon permukaandi DAS Blega tahun 1990-2020. Penelitian dilakukan di area DAS Blega melalui 6 tahapan, yaitu koreksi geometric, komposit band, training sample pada Area of Interest (AoI), uji Training sample, klasifikasi tutupan lahan dan menghitung stok karbon. Hasil analisis menunjukkan rata - rata tutupan lahan pada tahun 1990, 2000, 2010 dan 2020 terluas berturut-turut adalah pertanian lahan kering (69%), hutan tanaman (11.2%), sawah (8.77%), hutan tanaman (4.59%), tambak (2.65%), pertanian lahan kering campur (1.56%), hutan mangrove sekunder (0.87%), pemukiman (0.70%), belukar (0.63%) dan sisanya tanah terbuka. Perubahan tutupan lahan 1990-2000 dari belukar rawa menjadi pertanian lahan kering (8,819.81 ha), sawah (2,629.13 ha) dan pemukiman (152.57 ha). Periode 2000-2010 terjadi perubahan tutupan lahan pada pertanian Lahan Kering Campur-Pemukiman sebesar 654.14 ha. Periode 2010-2020 terjadi konversi lahan tertinggi pada sawah - tambak dengan luas 4,571.08, belukar - sawah, dan hutan mangrove sekunder - tambak masing - masing luas 343.12 dan 316.13 ha serta sebagian kecil penutup lahan lainnya. Selanjutnya, periode 2010-2020 tutupan lahan sawah mengalami penurunan sebesar 4,302.7 ha. Perubahan tutupan lahan tersebut berpengaruh pada perubahan stok karbon di DAS Blega, yakni selama periode tahun 1990-2020 mengalami penurunan sebesar 25.98%. Tahun 1990-2000 mengalami penurunan 19.41%, tahun 2000-2010 dan 2010-2020 mengalami penurunan masing-masing sebesar 1.55% dan 5.02%. Kata kunci: emisi karbon, karbon permukaan, madura ABSTRACT Carbon emissions are a strategic issue because of the impact on global warming, increased hydrometeorological disasters, and decreased natural resources. One way to reduce carbon emissions is to prevent land cover change, especially forests for other uses in tropical areas such as forests in the Blega watershed area. This study aims to look at land cover change and its effect on surface carbon stock in the Blega watershed from 1990-2020. This research was conducted in the Blega watershed area through 6 stages, namely: 1) Geometric correction, 2) Band composite, 3) Training sample on Area of Interest (AoI), 4) Training sample test, 5) Land cover classification and 6) Carbon stock calculation. The results of image analysis of the Blega watershed area show that the average land cover in 1990, 2000, 2010, and 2020 are dry land agriculture (69%), plantation forest (11.2%), rice fields (8.77%), plantation forest (4.59%), ponds (2.65%), mixed dry land agriculture (1.56%), secondary mangrove forest (0.87%), settlements (0.70%), shrubs (0.63%) and the remaining open land. The land cover changed 1990-2000 from swamp scrub to dry land agriculture (8,819.81 ha), paddy fields (2,629.13 ha), and settlements (152.57 ha). The period 2000-2010 saw land cover change in Mixed Dryland Agriculture-Settlement of 654.14 ha. The 2010-2020 period saw the highest land conversion in paddy fields - ponds with an area of 4,571.08, scrub - paddy fields, and secondary mangrove forest - ponds with an area of 343.12 and 316.13 ha respectively, and a small portion of other land covers. Furthermore, in the 2010-2020 period, rice field land cover decreased by 4,302.7 ha. The change in land cover affects the change in carbon stock in the Blega watershed, which during the 1990-2020 period decreased by 25.98%.1990-2000 experienced a decrease of 19.41%, 2000-2010 and 2010-2020 experienced a decrease of 1.55% and 5.02% respectively. Keywords: carbon emissions, surface c stock, madura
Pengaruh Pupuk Hayati VP3 Dengan Persentase Limbah Cangkang Telur Berbeda Terhadap Pertumbuhan Bibit Tanaman Terong (Solanum melongena L.) (Hasil Optimalisasi Suhu Pembuatan Pelet Pupuk Hayati VP3 Berbahan Dasar Limbah Cangkang Telur) Vivin Hafidatur Rofi'ah; Djuhari Djuhari; Novi Arfarita
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 2 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.02.4

Abstract

ABSTRAK Pupuk hayati merupakan formulasi yang mengandung mirkroorganisme aktif atau laten biasanya berbentuk cair ataupun padat, mampu meningkatkan produktivitas lahan secara berkelanjutan dengan membantu ketersediaan unsur hara tanah. Cangkang telur merupakan salah satu limbah potensial dijadikan sebagai bahan pembawa mikroba pupuk hayati. Penelitian dilakukan untuk mengetahui suhu pengeringan yang sesuai pada pelet dengan komposisi penambahan cangkang telur yang sesuai terhadap viabilitas bakteri pupuk hayati VP3, dan pengaruh pada pertumbuhan bibit tanaman terong. Penelitian dilaksanakan selama 4 bulan pada Laboratorium Mikrobiologi, Laboratorium Pusat dan Halal Center Universitas Islam Malang menggunakan metode Rancangan Acak Lengkap pada uji viabilitas bakteri dan Rancangan Acak Kelompok pada uji bibit tanaman terong. Hasil penelitian menunjukkan bahwa suhu pengeringan 40℃ lebih mampu mempertahankan viabilitas bakteri daripada suhu 43℃ dan 46℃ dengan perlakuan V3 (cangkang telur 15%) memiliki rata-rata tertinggi 86.7 × 109 CFU/g tetapi tidak berbeda nyata dengan perlakuan V2 (cangkang telur 10%), hal ini menunjukkan bahwa pupuk hayati ditambahkan cangkang telur mampu bertahan setelah pengeringan oven suhu 40℃. Pada uji bibit tanaman terong dihasilkan pengaruh nyata pada parameter tinggi bibit perlakuan V3 memiliki rata-rata tertinggi 5.340 cm, bobot segar perlakuan V3 memiliki rata-rata tertinggi 0.0477 g, dan total panjang akar bibit perlakuan V2 memiliki rata-rata tertinggi 532.09 mm tetapi tidak berbeda nyata dengan perlakuan V3. Kata kunci: cangkang telur, pupuk hayati VP3, terong ABSTRACT Biofertilizers are formulations that contain active or latent microorganisms, usually in liquid or solid form, capable of increasing land productivity sustainably by helping the availability of soil nutrients. Eggshell is one of the potential wastes used as a carrier material for biological fertilizer microbes. The study was conducted to determine the appropriate drying temperature for pellets with the appropriate eggshell addition composition on the viability of the VP3 biofertilizer bacteria, and the effect on the growth of eggplant seedlings. The study was conducted for 4 months at the Microbiology Laboratory, Central Laboratory, and Halal Center at the University of Islamic Malang using a Completely Randomized Design on the bacterial viability test and Randomized Block Design on the eggplant seedling test. The results showed that the drying temperature of 40℃ was better able to maintain bacterial viability than the temperature of 43℃ and 46℃ with V3 treatment (15% egg shells) which had the highest average of 86.7 × 109 CFU/g but not significantly different from V2 treatment (eggshell 10%), this shows that the biofertilizer added to the eggshell can survive after oven drying at 40℃. In the eggplant seed test, a significant effect on the height parameter of the V3 treatment seedlings had the highest average of 5.340 cm, the fresh weight of the V3 treatment had the highest average of 0.0477 g, and the total root length of the V2 treatment seedlings had the highest average of 532. 09 mm but not significantly different from the V3 treatment. Keywords: eggplant. eggshell, VP3 biofertilizer 
Advancing Fauna Conservation through Machine Learning-Based Spectrogram Recognition: A Study on Object Detection using YOLOv5 Badrul Huda Husain; Takahiro Osawa
Jurnal Sumberdaya Alam dan Lingkungan Vol 10, No 2 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2023.010.02.2

Abstract

ABSTRACT The protection and monitoring of fauna species are essential for maintaining biodiversity and ensuring the sustainability of ecosystems. Traditional methods of fauna conservation and habitat monitoring rely heavily on manual observation and data collection, which can be time-consuming, and labor-intensive. In recent years, the application of machine learning techniques, such as object detection, has shown great potential in automating the identification of fauna species. In this study, we propose an approach to advancing fauna conservation through the utilization of machine learning-based spectrogram recognition. Specifically, we employ an object detection algorithm, YOLOv5, to detect and classify fauna species from spectrogram images obtained from acoustic recordings. The spectrograms provide a visual representation of audio signals, capturing distinct patterns and characteristics unique to different fauna species. Through extensive experimentation and evaluation, our approach achieved promising results, demonstrating a precision of 0.95, recall of 0.98, F1 score of 0.91, and mean Average Precision (mAP) of 0.934. These performance metrics indicate a high level of accuracy and reliability in fauna species detection. By automating the identification process, our approach provides a scalable solution for monitoring fauna populations over large geographical areas and enables the collection of comprehensive data, facilitating better decision-making and targeted conservation strategies. Keywords: acoustic recording, fauna conservation, machine learning, spectrogram, YOLOv5

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