Journal of Natural Resources and Environmental Management <p><img style="vertical-align: top; float: left; margin-right: 10px;" src="/public/site/images/arifkipb/cover_issue_1610_en_US2.jpg" alt="" width="20%"></p> <p align="justify">Natural Resources and Environmental Management Studies Program, Graduate School of Bogor Agricultural University (PS-PSL, SPs IPB) in collaboration with Center for Environmental Research - Institute for Research and Community Service, Bogor Agricultural University (PPLH-LPPM, IPB) has been managing JPSL since 2011, with a period of two numbers per year. From 2017 until 2018, JPSL is published three numbers per year. Starting from 2019, JPSL is published four times per year.</p> <p align="justify">The Journal of Natural Resources and Environment Management (JPSL) is a scientific periodical that presents scientific articles, conceptual thoughts, reviews, and book reviews on natural and environmental resource management that have tropical characteristics. Each manuscript submitted to the Journal of Natural Resources and Environmental Management is reviewed by reviewers.</p> <p align="justify">JPSL has been indexed in DOAJ (Directory of Open Access Journal), Google Scholar, Indonesian Publication Index (IPI), and CrossRef. JPSL has also been accredited by Kemenristekdikti with Decree No. 60/E/KPT/2016. Valid from November 18, 2016 to November 18, 2021.</p> <p><strong>JPSL Statistics:</strong></p> <p><object data="" width="100%" height="500"> </object></p> en-US <p>Authors who publish with this journal agree to the following terms:<br><br></p> <ol type="a"> <ol type="a"> <li class="show">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a&nbsp;<a href="" target="_new">Creative Commons Attribution License</a>&nbsp;that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> </ol> </ol> <p>&nbsp;</p> <ol type="a"> <ol type="a"> <li class="show">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> </ol> </ol> <p>&nbsp;</p> <ol type="a"> <li class="show">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See&nbsp;<a href="" target="_new">The Effect of Open Access</a>).</li> </ol> (Dr. Yudi Setiawan, SP., M.Env.Sc) (Arif Kurnia Wijayanto, S.TP, M.Sc) Mon, 06 Jul 2020 00:00:00 +0700 OJS 60 The study of mangrove density and shoreline changes from 1989 to 2018 in Jambi Province Coastal Zone <p><em>The density of mangrove cover is one of the factors that influence changes in shoreline both accretion and abrasion. This study aims to determine the effect of changes in density of mangrove cover on shoreline changes in 1989-2018 in the Coastal Province of Jambi. The method used is the interpretation of Landsat satellite images in 1989, 2000 and 2018 using NDVI (Normalized Difference Vegetation Index) and overlaying images to see shoreline changes and DSAS (Digital Shoreline Analysis System) to calculate the area of change. The results showed that there had been a change in shoreline both accretion and abrasion in several locations that had different mangrove densities in the period 1989-2018. The results showed that accretion occured in 6 locations with an average change of Kota Sebrang 771 m, Tungkal Ilir 240.65 m, Kuala Betara 153.73 m, Mendahara 167.78 m, Kuala Jambi 169.35 m and Nipah 57.3 m, while abrasion occurs at 2 locations with an average change in Sabak Timur -41.8 m and Sadu -36.55 m. Where in the 6 locations that had accretion, mangrove density dominantly was in a close-densed and moderate state and only a few are in a low-densed condition. Meanwhile, the 2 locations that had abrasion were in a moderate state and have a low density mangrove forest.</em></p> Eva Achmad, Nursanti Nursanti, Marwoto, Fazriyas Fazriyas, Dwi Putri Jayanti Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:13:10 +0700 Food habit of horseshoe crabs, Tachypleus gigas (Müller 1785) and Carcinoscorpius rotundicauda (Latreille 1802) in Balikpapan coastal waters, East Kalimantan <p><em>Horseshoe crabs are living fossils found in Indonesia. This study examined the food habit of horseshoe crabs (</em>Carcinoscorpius rotundicauda <em>and</em> Tachypleus gigas<em>)</em> <em>&nbsp;collected from Balikpapan coastal waters, East Kalimantan. Horseshoe crabs were captured using gill nets and picked by hand along the Balikpapan coast. The width of the prosoma and the body weight of each individual were measured, and the gut contents were analysed to determine the preponderance index, food niche breadth, and niche overlap. </em>Carcinoscorpius rotundicauda<em> prosoma widths ranged from 4.1 to 15.4 cm and those of </em>Tachypleus gigas<em> ranged from 2.8 to 24 cm. Eight food items were found in the gut of the horseshoe crabs, namely: bivalves, gastropods, scaphopoda, polychaetes, echinoderms, crustaceans, leaf litter and others. Based on the preponderance index, gastropods were the main food item of the two horseshoe crab species. In accordance to the food composition the horseshoe crabs inhabiting Balikpapan coastal waters are categorized as benthivores.</em></p> Rani Nuraisah, Naila K Aini, Ali Mashar, Zairion Zairion, Yuni P Hastuti, Peter Funch, Yusli Wardiatno Copyright (c) 2020 Journal of Natural Resources and Environmental Management Thu, 14 May 2020 08:15:09 +0700 Soil redox potential as predictor of heterotrophic respiration of an oil palm plantation-peatland in Riau, Indonesia <p>Respirasi tanah terdiri atas respirasi autotrof dan heterotrof. Pada lahan gambut, respirasi heterotrof setara dengan laju dekomposisi bahan gambut. Penelitian ini bertujuan mengembangkan model potensial redoks (Eh) tanah sebagai penduga respirasi heterotrof dari perkebunan kelapa sawit pada lahan gambut tropika. Respirasi tanah diukur menggunakan metode sungkup tertutup pada plot <em>close-to-tree</em> (berjarak 2 m dari pohon) dan <em>far-from-tree</em> (4.5 m dari pohon)<em>, </em>sedangkan untuk respirasi heterotrof pada plot<em> root-cut </em>(4.5m dari pohon) yang disiapkan dengan pemotongan akar hingga kedalaman 80 cm dan diinkubasi selama 8 bulan. Respirasi tanah pada lokasi penelitian 40.81 ton CO<sub>2</sub> ha<sup>-1</sup>.th<sup>-1</sup>, 50.53% darinya berasal dari respirasi komponen heterotrof (RKH). Respirasi heterotrof berkorelasi positif dengan Eh tanah pada pH 7 di kedalaman -30 dan -90 cm (Eh7~30 and Eh7~90) dan berkorelasi negatif dengan tinggi muka air tanah. Nilai koefisien korelasi linier sederhana yang signifikan, r= 0.84 dan 0.87; n= 12, dengan RKH masing-masing ditunjukkan oleh Eh7~30 and Eh7~90. Oleh sebab itu, kedua faktor tersebut dapat disarankan sebagai penduga RKH dengan persamaan: RKH (ton CO<sub>2</sub> ha<sup>-1</sup>.th<sup>-1</sup>) = 18.2 + 0.029 Eh7~30 + 0.037 Eh7~90 (Eh dalam mV).</p> Bargowo Addianto, Bandung Sahari, Atang Sutandi, Untung Sudadi Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Tue, 28 Apr 2020 10:42:37 +0700 Willingness To Pay (WTP) for environmental services of well water sources in Kupang City <p class="Abstract"><strong><em>Abstract: </em></strong><em>This study using an interview for survey, respondents were asked a series of questions about their willingness to pay for environmental services as hypothetical research, which would assist in the conservation of water resources. Willingness to pay (WTP) for the owners who commercialized the well water using bidding game methods with offers of different starting points was asked to the respondents for the Groundwater Basin (CAT) Tabun-Bakunase-Haukoto-Sikumana, CAT Kupang-Oesapa-Tarus, CAT Penfui and Baumata, CAT Bolok-Tenau-Alak-Namosain. The results of the study showed that the value of Willingnes To Pay of the well owner was commercialized from 17 respondents who were willing to pay in the amount of Rp. 518.209 or Rp.6,100/m3.</em></p> <p class="Abstract"><em>The average cost of production around Rp. 146.650/day, with the amount of discharged water that taken is 4.175 m3, with a cost per 5 m3 is Rp. 3.482, resulting in Rp.30.997 surplus for the producer. Consumer Respondent surplus towards payment of environmental services for commercialized wells water resources is Rp. 496.000,. </em></p> <p class="Abstract"><em>The consumption of commercialized well water resources in Kupang on CAT Bolok-Tenau-Alak-Namosain is 150 m3/day or 54.750 m3/year, CAT Tabun-Bakunase-Haukoto-Sikumana is 2.600 m3/day or 949.000 m3/year, CAT Kupang- Oesapa-Tarus is 1.125 m3/day or 410.625 m3/year, CAT Penfui is 300 m3/day or 109.500 m3/year, and the amount of water withdrawal is less than the potential of groundwater in each CAT, so there is a surplus of water discharge that taken on CAT in the city of Kupang.</em></p> <p class="Abstract"><em>The factors that influence the agreed response based on the test results indicate that the risk factors that have a low level of risk are Age (X1), Education (X2), Occupation (X3), Cost (X5), while risk factors that have a strong level of risk are Acceptance (X4) and Environmental Services Knowledge (X6). For Age risk factors (X1), Education (X2), Employment (X3), Costs (X5) have a low level risk level, this means that these factors are not risk factors that can pose a high risk on the willingness of the respondents to pay (WTP). While Acceptance (X4) and Environmental Services Knowledge (X6) have strong risk factors which means that these factors pose a strong risk to the willingness of respondents to pay (WTP), so that a significant effect is partially between acceptance and knowledge of environmental services to willingness of well owners in paying for groundwater environmental services that are used as economic goods. Acceptance and knowledge of environmental services have a significant effect because the greater the acceptance and knowledge of environmental services, the greater the willingness to pay for environmental services.</em></p> Aplonia Bani, Fredrik Benu, Herry Kotta Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Mon, 18 May 2020 06:44:19 +0700 Habitat Preference and Spatial Distribution of Juvenile Blue Swimming Crab (Portunus pelagicus) in the East Lampung Coastal Waters, Lampung Province <p><em>Information on habitat preferences of the blue swimming crab (BSC) juvenile and its spatial distribution is one of the factors behind the successfulness of its sustainable management. This information is needed to provide input for management strategy by considering juvenile crabs and their habitat as important aspect. The purpose of this study is to elucidate habitat preferences, abundance and biomass distribution of BSC juvenile in the east Lampung coastal waters. The research was conducted in September-October 2018, which was located in east Lampung coastal waters, Province Lampung. Spatial distribution through estimation of abundance and biomass of BSC juvenile &nbsp;were relatively high and concentrated in the Gambas and Wako regions at stratification of 2-4 miles from the coastline. The BSC juvenile does not appear to have a high preference to the Kuala Penet coastal habitat condition; it is considered because of low value of abundance, biomass, and Habitat suitability index (HSI). The value of HSI in the Kuala Penet Coastal region is also lower than other locations due to abiotic and biotic factors for supporting the crabs at juvenile stage.</em></p> Muhamad Radifa, Yusli Wardiatno, Charles P.H. Simanjuntak, Zairion Zairion Copyright (c) 2020 Journal of Natural Resources and Environmental Management Thu, 14 May 2020 08:12:43 +0700 Development of economic valuation method for the direct impact of alien invasive species based on food competition in aquatic ecosystems <p><em>Alien crayfish species (</em>Cherax quadricarinatus<em> and </em>Procambarus clarkii<em>)</em><em> have been found in some Indonesian area and demonstrated invasive species characters. Despite of their economy benefit the crayfish has potential ecologically disadvantage to be valuated. This study aimed to develop valuation method to estimate economical loss due to alien invasive species on food competition basis in an aquatic ecosystem. This approach was conducted by estimating the potential loss due food competition between invasive species and its inferior competitor. The case study was carried out in the Lido Lake and in an aquaculture site at Cisaat, Sukabumi – West Java. The research results that economic loss due to the disappearance of native </em>Macrobrachium sintangense<em> caused by the existences of single male </em>C. quadricarinatus<em> is 784 IDR and 1,096 for the female in Lido Lake. The potential loss of </em>M. rosenbergii<em> due to the single </em>P. clarkii<em> is 1,416.76 IDR. The difference economic loss is constituted by the quantity of feed taken by </em><em>the invasive species, and the economic value of competitive inferior species. This method is clearly explained in the method section and is simple to use, but more understandable for limited economics background stakeholders. However, this approach needs robust biological dynamic model. The valuation results become important reference for the policy maker to develop risk analysis in concern of introduced invasive species into an ecosystem. For holistic economic loss value valuation, further studies covering space competition and potential harmful pathogen carrier are warranted.&nbsp; </em></p> Taryono Kodiran, Ali Mashar, Riska Febriana, Erin R Nurulhayati, Athifah Nurulhafidzah, Yusli Wardiatno Copyright (c) 2020 Journal of Natural Resources and Environmental Management Fri, 03 Jul 2020 13:03:50 +0700 Soil Phosphorus Fractions in Top Soil and its Correlation with Some Soil Chemical Properties of Forest and Oil Palm Plantations in Jambi <p><em>The change from forest to oil palm plantation probably changes the distribution of phosphorus (P) fractions in the soil. This study was aimed to evaluate the soil top layer P fractions, collected in forest and oil palm plantation in Jambi, as well as their correlation with soil chemical properties. Soil samples were collected in top layers of forest and oil palm plantation. Some soil chemical properties and P fractions were analyzed. The P fractions analyze were conducted according to Tiessen and Moir method. The results showed that the moderately labile P fractions namely&nbsp; NaOH-P<sub>organic </sub>(-P<sub>o</sub> ) and -P<sub>inorganic</sub> (P<sub>i</sub>) were the dominant fraction in forest soil and oil palm plantation as well. The forest had a higher percentage of avaliable P (resin-P<sub>i</sub>, NaHCO<sub>3</sub>-P<sub>i</sub>,-Po) and organic moderately labile P (NaOH-P<sub>o</sub>) compared to those of oil palm plantations in their total fractions analyzed. As for NaOH-P<sub>i</sub>, oil palm plantation had higher amount of this fraction compared to that of forest. This means that naturally the change from forest to oil palm plantation changed the P fractions distribution due to the changes of organic carbon (C) content. The correlation test showed that almost all P fractions significantly correlated with organic C indicating that the mineralization of organic C affecting the P fractions distribution, suggested that organic C controlled the P fractions distribution in the top soil of forest and oil palm plantation.</em></p> Desy Djata, Arief Hartono, Syaiful Anwar, Budi Nugroho Copyright (c) 2020 Journal of Natural Resources and Environmental Management Fri, 03 Jul 2020 13:04:24 +0700 Water Quality Status And Load Pollution Krukut River, Dki Jakarta <p class="Abstract">Sungai di Indonesia telah mengalami pergeseran fungsi, khususnya di Jakarta. Sebagai ibukota negara, pertumbuhan populasi dan juga laju migrasi merupakan hal yang idak bisa dihindari. populasi di ibukota turut berkontribusi pada penurunan kualitas lingkungan, termasuk kualitas air sungai. sungai krukut merupakan salah satu sungai besar yang mengalir di Jakarta yang memiliki peran penting dalam mendukung aktivitas penduduk sekitar. sungai ini diperuntukkan sebagai bahan baku air minum (KepGub DKI Jakarat No. 582/1995). Tujuan dari penelitian ini ialah untuk mengetahui status mutu air dan potensi beban pencemar Sungai Krukut. metode yang digunakan untuk analisis status mutu air ialah Indeks Pencemar (PP No. 82/2001). baku mutu yang digunakan ialah baku mutu air Kelas I dan Kelas II. Status mutu air sungai krukut dengan baku mutu kelas I ialah cemar berat di seluruh stasiun pemantauan, sedangkan dengan baku mutu kelas II ialah cemar sedang-cemar berat. potensi beban pencemar sungai krukut berasal dari limbah domestik rumah tangga. potensi beban pencemar total sungai krukut sebesar 669.940 kg/hari dengan beban pencemar BOD sebesar 203.562,89 kg/hari, beban COD sebesar 275.814,4 kg/hari, dan beban pencemar TSS sebesar 190.562,7 kg/hari.</p> <p class="Abstract">&nbsp;</p> <p class="Abstract">&nbsp;</p> <p class="Abstract">&nbsp;</p> intan pramudita rachmawati, etty riani, agung riyadi Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:13:58 +0700 Perubahan penggunaan/ tutupan lahan dan prediksi perubahan penggunaan/ tutupan lahan di Kabupaten Lampung Selatan <p>Land cover/land use is one of factors which is important in land management. The changes of land cover can affect on the polcy in an area. Land cover/land use of South Lampung Regency is potentially changes. Economy, social, and population are factors that affect the change in land cover. The aim of this research were to analyze spatial change of land cover/land use in South Lampung Regency period 2007-2019 and predicting future land cover/landuse of 2031. Analysis was carried out applying Cellular automata markov chain of land cover spatial model. The result showed that Kappa for image classification was 0.86. Dominant land cover type in South Lampung Regency was plantation field of 35.47 – 36.18%. Model validation of 2031 predicted land cover was 0.946, while The types of land cover that increase in 2031 were built up area and paddy field of 96.8% and 86.5%, respectively, while paddy fields, forest, moor, body of water, plantation, shurb were decreasing approximately 16.2, 14.9, 13, 7.7, 4.1 and 1.0%. Paddy field that had the most area of decline as prediction results of 16.2%.</p> Rakhman Adhiatma, Widiatmaka, Iskandar Lubis Copyright (c) 2020 Journal of Natural Resources and Environmental Management Fri, 03 Jul 2020 13:08:30 +0700 The effect of pH and temperature on desinfection process using microbubble and pressurized carbon dioxide <p><em>Mengatasi persoalan kualitas air permukaan yang disebabkan oleh bakteri patogen Eschericia coli (E. coli). Untuk mencegah terjadinya berbagai penyakit yang timbul akibat air yang tercemar oleh E. coli, maka perlu dilakukan proses desinfeksi. Desinfeksi menggunakan microbubble karbondioksida (CO<sub>2</sub>) bertekanan mulai dikembangkan sebagai metode desinfeksi alternatif. Penelitian ini bertujuan untuk mengkaji pengaruh pH dan suhu terhadap efektifitas desinfeksi E. coli. Penelitian dilakukan dalam dua tahap yaitu operasonal dengan variasi pH awal (4,7 dan 9) dilanjutkan dengan variasi suhu (20, 25, 30, 35, dan 40</em><em>⁰</em><em>C), selama 25 menit dengan tiga kali ulangan. Tekanan pada reaktor menggunakan tekanan 0.2 MPa. Perhitungan koloni E. coli menggunakan metode Total Plate Count (TPC). Hasil penelitian menunjukkan rerata suhu cenderung mengalami peningkatan, sementara rerata pH serta jumlah E. coli mengalami penurunan. efek mikrobisidal paling efektif terjadi pada pH awal 4 dengan penurunan jumlah E. coli sebesar 73%. Suhu yang paling efektif untuk mendesinfeksi E. coli sebesar 86.7% adalah 40</em><em>⁰</em><em>C dengan suhu dan pH akhir sebesar 55</em><em>⁰</em><em>C dan 5.0 dimana jumlah E. coli yang semula 1.5 x 10<sup>6</sup> CFU/ml, tereduksi menjadi 0.2 x 10<sup>6</sup> CFU/ml.</em></p> Evi KURNIATI, Fajri Anugroho, Akhmad Adi Sulianto Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:10:18 +0700 Environmental Behavior Mahasiswa Pendidikan Akuntansi di Kampus Konservasi <div class="WordSection1"><p><em>Tujuan penelitian ini adalah untuk mengetahui bagaimana kondisi perilaku ramah lingkungan mahasiswa yang telah selesai menempuh mata kuliah Pendidikan Lingkungan Hidup (PLH). Objek penelitian adalah mahasiswa Pendidikan Akuntansi UNNES angkatan 2016. Sampel penelitian ditetapkan menggunakan rumus slovin dengan teknik pengambilan sampel random sampling sejumlah 121 mahasiswa. Alat analisis menggunakan analisis deksriptif. Hasil penelitian menunjukkan bahwa environmental behavior yang dimiliki mahasiswa dalam kategori cukup, mahasiswa memiliki perilaku yang tinggi dalam hal penghematan dan penggunaan sumber energi, penggunaan alat transportasi yang ramah lingkungan, dan pemakaian barang yang menyebabkan limbah. Namun demikian memiliki kelemahan atas perilaku dalam pengolahan limbah, konsumsi bahan-bahan makanan ramah lingkungan, enggan untuk aktif dalam organisasi lingkungan serta belum dapat memanfaatkan media sosial yang dimiliki untuk kegiatan lingkungan. Saran dari hasil penelitian ini adalah perlunya praktik calon wirausaha industri kreatif dalam pembelajaran mata kuliah kewirausahaan, dan optimalisasi kinerja kader konservasi untuk meningkatkan kesadaran mahasiswa akan pentingnya terlibat dalam organisasi lingkungan.</em></p></div><em><br clear="all" /></em> Ratieh Widhiastuti, Nurdian Susilowati, Susmy Lianingsih Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:11:41 +0700 Ethnobotany study in the Bukit Bulan karst area to support archeological <p><em>Kars Bukit Bulan adalah salah bentang alam yang didominasi batuan gamping yang menyimpan kekayaan alam dan terdapat situs-situs prasejarah. Perlu adanya studi etnobotani dikawasan tersebut guna mendukung riset-riset arkeologi. Tujuan dari penelitian ini adalah menginvetarisasi flora dan studi etnobotani di kawasan Kars Bukit Bulan. Metode yang digunakan dalam penelitian ini adalah dengan ekplorasi dan observasi di lapangan. Hasil penelitian diperoleh data 172 tumbuhan hutan, 16 tumbuhan bernilai ekonomi tinggi, 31 tumbuhan untuk seni kriya, 33 tumbuhan untuk konsumsi, 9 tanaman obat, 14 tanaman perkebunan, 8 tanaman pembatas/pagar, dan 15 jenis paku-pakuan. Diharapkan dari hasil penelitian tersebut dapat mendukung data temuan arkeologi.&nbsp; &nbsp;&nbsp;</em></p> dhanang puspita, Soenarto Notosoedarmo, Muhamad Rully Fauzi Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:12:24 +0700 The impact of contamination of fishing ground to production and quality of fish caught in Jakarta Bay <p><em>Produksi ikan yang tinggi dan mutu yang baik adalah sangat diharapkan oleh pelaku perikanan, termasuk di Teluk Jakarta.&nbsp; Namun hal ini bisa terkendala bila wilayah perairan yang menjadi tempat menangkap ikan (fishing ground) berada dalam status tercemar.&nbsp; Penelitian ini bertujuan </em><em>mengidentifikasi status pencemaran fishing ground dan kondisi operasi penangkapan ikan, serta menganalisis dampak pencemaran tersebut terhadap jumlah produksi dan mutu ikan yang tertangkap.&nbsp; </em><em>Metode analisis yang digunakan terdiri dari </em><em>analisis fisiko-kimia, diagram pareto, dan analisis </em><em>model.Hasil penelitian menunjukkan bahwa perairan di sekitar fishing ground</em><em> Teluk Jakarta tercemar kuat oleh bau, kekeruhan, sampah, dan logam Hg.&nbsp; </em><em>Operasi p</em><em>enangkapan ikan di Teluk Jakarta umumnya menggunakan kapal &lt; 5 GT, </em><em>berlangsung </em><em>1-2 hari/trip</em><em>, dengan hasiltangkapan dominan berupa ikan </em><em>tongkol, layang, dan layur</em><em>.&nbsp; Pencemaran fishing ground telah secara signifikan menurunkan jumlah produksi ikan di Teluk Jakarta (KP = -0,42, P = 0,00). Penurunan nyata terjadi pada produksi ikan layur (kelompok ikan demersal) dan ikan layang (kelompok ikan pelagis kecil).&nbsp; Mutu ikan yang tertangkap juga turun secara signifikan akibat pencemaran fishing ground (KP = -0,81, P = 0,00).&nbsp; Cacat mutu yang secara nyata meresahkan pelaku perikanan adalah insang kotor dan sisik berlendir.</em></p> <p>&nbsp;</p> <p>Kata kunci : mutu, <em>fishing ground,</em> Hg, pencemaran, ikan</p> <p align="center"><strong><em>&nbsp;</em></strong></p> <p align="center">&nbsp;</p> <p align="center"><strong>ABSTRACT</strong></p> <p align="center">&nbsp;</p> <p><strong>THE IMPACT OF CONTAMINATION OF FISHING GROUND TO PRODUCTION AND QUALITY OF FISH CAUGHT IN JAKARTA BAY</strong><em>. </em><em>High production and quality of fish are very expected by fishery stakeholders, inclusive in Bay Jakarta.&nbsp; But this matter can be burdened if territorial water with becoming fishing ground have contaminated status. The research aims to identify the contaminated status of fishing ground and operating conditions of fishing, and also to analyse the impact of its contamination to production and quality of fish caught. This research methods are physics and chemical analysis, diagram pareto, and model analysis. Research result shows that fishing ground in Bay Jakarta have been contaminated by aroma, turbidity, garbage, and Hg metal. Fishing operations in the Jakarta bay generally boat &lt;5 GT, lasts 1-2 days / trip, with dominant catches form of tuna fish, float fish, and sword fish. The contamination of fishing ground have degraded significantlythe production amount of fish in Jakarta Bay (KP = -0,42, P = 0,00). The real degradationsare in production of sword fish (group of demersal fish) and float fish (group of small pelagic fish). The quality of fish caught also have droped significantly as impact by the contamination of fishing ground (KP = -9,81, P = 0,00).&nbsp; Quality defect freting clearly to fishery stakeholders are dirty gills and muccous of fish scales.</em></p> Mustaruddin Mustaruddin, Ernani Lubis, Ateng Supriatna, Sri Susanti Kartini Copyright (c) 2020 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Fri, 03 Jul 2020 13:12:35 +0700 Spatial Model Of The Deforestation Potential 2020 & 2024 And The Prevention Approach, Kutai Barat District <p><em>Kutai Barat have high forest cover and high deforestation rates. The study purpose to make spatial model, potential distribution of deforestation 2020 and 2024, analysis of the drivers of deforestation, compile and map the approach to reducing deforestation. Deforestation modeling done using MaxEnt and Zonation software. Deforestation sample data used from land cover maps 2009, 2013 and 2016. Deforestation rates used to estimate potential deforestation 2020 and 2024. The drivers of deforestation analyze from land cover change matrix. Prevention strategy approach by overlaying potential deforestation modeling results with RTRW maps. The model has good performance with AUC value 0.873. The validation show very good accuracy for the prediction of area to be deforested by 94%, the accuracy of the spatial distribution of the model 31%. Environmental variables have the highest contribution to the model is the distance from previous deforestation 37.4%. The potential of deforestation 2020 is 85,908 ha and 171,778 ha 2024. Oil palm, agriculture, rubber, HTI and mining are the driver of deforestation. Social forestry is expected to prevent potential deforestation 120,861 ha. Others expected programs to contribute to the deforestation reduction are community land intensification 30,316 ha and implementation of the HCV in plantation 20,120 ha.</em></p> Hultera Hultera, Lilik Budi Prasetyo, Yudi Setiawan Copyright (c) 2020 Journal of Natural Resources and Environmental Management Fri, 03 Jul 2020 13:05:21 +0700 Study of hydroelectric power capacity using the rational method in the Lawe Sempali subwatershed, Aceh Province <p><em>Nowadays, electricity is a basic human need that must be available. Therefore, efforts to obtain electrical energy from renewable natural resources continue to be explored, especially water energy from watersheds and sub-watersheds. Aceh Province is a relatively widely available area of ​​watersheds and sub-watersheds. This study aims to analyze and categorize the potential of electric power generated by the Lawe Sempali sub-watershed, Aceh province, as a source of hydroelectric power. The method used in this research is the study of literature and field studies. The rainfall analysis of the ten year return period plan was carried out with four approaches, namely (i) normal distribution method (ii) normal log distribution method, (iii) Gumbel distribution method, and (iv) Pearson III log distribution method. Discharge plans that occur are analyzed using the rational method. The categorization of the power capacity of hydroelectric power plants is based on the capacity that can be produced by the sub-watershed. The results of this study were to report that the Lawe Sempali Sub-watershed has the potential to be a source of hydroelectric power generation in the category of micro-hydro and or small-hydro power plants. The capacity of electric power generated with planned discharge in the shortest return period (2 years) is a minimum of 68.21 KW (head 2 m) and a maximum of 3.41 MW (head 100 m).</em></p> Devianti Devianti, Ramayanty Bulan, Purwana Satriyo, Dewi Sartika T Copyright (c) 2020 Journal of Natural Resources and Environmental Management Fri, 03 Jul 2020 13:05:57 +0700 Pengelolaan ekosistem mangrove untuk ruang terbuka hijau sebagai mitigasi gas rumah kaca di kawasan Sungai Tallo Kota Makassar <p><em>One of the ecological functions of mangroves ecosystem is to store carbon. Yet, on the other hand it also has the potential to cause greenhouse gas emissions through litter degradation even though its value is lower compared to the absorption value. Based on these two facts, mangrove management as a Green Open Space in the Tallo river area of ​​Makassar City needs to consider involving the participation of the community and the government as stakeholders. The research was conducted by desk work, literature study and respondent interviews regarding perceptions and participation in mangrove management. The results showed that the total uptake of mangrove carbon in the Tallo river in Makassar city was 351.02 tons CO<sub>2</sub>/ha, oxygen supply 255.29 O<sub>2</sub>-equivalent/ha, and the potential for global warming was 252.41 mg/ m<sup>2</sup>/hour consisting of 194, 33 mg/m<sup>2</sup>/hour of CO<sub>2</sub> gas, 15.76 mg/m<sup>2</sup>/hour of CH<sub>4</sub> gas, and 42.33 mg/m<sup>2</sup>/hour of N<sub>2</sub>O gas. The results of community perception and participation analysis show that around 89% of the community strongly agreed and supported the government in the effort to manage mangroves as a green open space. Based on this, the ecosystem in the Tallo river is very suitable to be managed for green open space as fresh air supplier and CO<sub>2</sub> adsorber as well as a noise reduction from vehicle or industrial engines in Makassar city.</em></p> Rahman Rahman, Hefni Effendi, Iman Rusmana, Fredinan Yulianda, Yusli Wardiatno Copyright (c) 2020 Journal of Natural Resources and Environmental Management Mon, 06 Jul 2020 15:06:29 +0700 STRATEGI PENGENDALIAN ALIH FUNGSI LAHAN PERTANIAN DI DESA PANDAK GEDE KABUPATEN TABANAN <p><strong>Abstract</strong></p> <p><em>The Tabanan District Spatial Plan 2012-2032 states that Pandak Gede Village has a role as an environmental center that functions as the center of a residential area that serves the surrounding rural areas. The increase in population in Pandak Gede Village has caused changes in the number and distribution of settlement areas. The reduced area of ​​agricultural land can be an indication of the conversion of agricultural land to non-agricultural land. Given these indications, research is needed to find out how the conditions of land use change in Pandak Gede Village are seen from the social, economic, cultural aspects. Are there developments that are not in accordance with the Spatial Plan for Tabanan Regency 2012-2032, is there any indication of the conversion of agricultural land in Pandak Gede Village and how alternative strategies can be taken to minimize the mismatch of regional development against the Tabanan District Spatial Plan 2012-2032. The method used in this research is the mix method. The analysis included: socioeconomic analysis, socio-cultural analysis, regional development analysis, land use suitability analysis, and analysis of agricultural land use control strategies. The results showed an indication of the conversion of agricultural land by 18.71 hectares into residential and non-agricultural land. Alternative strategies that can be done are facilitative, reeducative, persuasive and power strategies to the government, to Pandak Gede Village, to community owners and buyers of land, to environmentalists, to further research and education.</em></p> <p>&nbsp;</p> Ahmad Sidiq, Ida K Armeli, NI K A Siwalatri Copyright (c) 2020 Journal of Natural Resources and Environmental Management Tue, 04 Aug 2020 17:11:03 +0700