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All Journal Jurnal Ecosolum JURNAL ANALISIS KEBIJAKAN KEHUTANAN Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Belantara Jurnal Biologi Tropis Gorontalo Journal of Forestry Research Jambura Edu Biosfer Journal Gorontalo Development Review Jambura Journal of Chemistry Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Penelitian Kehutanan Bonita RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Konservasi Hayati Jambura Geo Education Journal MAHATANI: Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal) International Journal of Health, Economics, and Social Sciences (IJHESS) JAGO TOLIS : Jurnal Agrokompleks Tolis Jurnal Sylva Scienteae Indonesian Journal of Chemistry and Environment Jurnal Ilmiah Mahasiswa Fakultas Pertanian (JIMFP) Journal of Scientech Research and Development Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Riset Rumpun Ilmu Tanaman Geosfera: Jurnal Penelitian Geografi Journal of Earth Kingdom Journal of International Multidisciplinary Research Journal Of Fisheries Agribusiness J-CEKI PESHUM RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Iswan Dunggio
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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JENIS HAMA & GEJALA SERANGAN DAUN PADA TINGKAT UMUR TANAMAN JABON MERAH (Anthocephalus macropyllus) Ningsih Rahman; Iswan Dunggio; Dian Puspaningrum
Gorontalo Journal of Forestry Research VOLUME 1 NOMOR 2 TAHUN 2018 GORONTALO JOURNAL OF FORESTRY RESEARCH
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.327 KB) | DOI: 10.32662/gjfr.v1i2.404

Abstract

Jabon merah (Anthocephalus macrophyllus) merupakan salah satu jenis tumbuhan asli Indonesia yang berpotensi untuk dikembangkan dalam pembangunan hutan tanaman maupun untuk tujuan lainnya. Hama yang menyerang suatu populasi hutan tanaman akan dapat bersifat sangat merusak. Tingkat kerusakan yang disebabkan oleh hama cukup bervariasi bergantung dari jenis spesies maupun faktor abiotiknya. Tujuan penelitian adalah untuk mengetahui jenis- jenis hama yang menyerang tanaman jabon merah di lokasi penelitian PT. Gema Nusantara Jaya Wilayah 1 Blok Ilomata,untuk mengetahui gejala serangan hama pada tingkat umur tanaman jabon merah di lokasi penelitian PT. Gema Nusantara Jaya Wilayah 1 Blok Ilomata.          Pembuatan plot dientukan dengan ukuta 20 x 50 m dibuat sebanyak 15 plot. 5 plot umur 1 tahun, 5 plot umur 2 tahun, 5 plot umur 3 tahun.          Secara umum hasil menunjukan tingkat serangan hama yang menyerang berturut-turut adalah Daphnis hypothous, Valanga nigricornis, Arthroschista hilaralis, Coptotermes sp. Tingkat kerusakan akibat serangan hama tertinggi terjadi pada tanaman umur 3 tahun (83%), umur 2 tahun (63,6%), umur 1 tahun (59,4%).
ANALISIS POLA PERUBAHAN PENGGUNAAN LAHAN DI DAERAH ALIRAN SUNGAI BIYONGA, KABUPATEN GORONTALO, PROVINSI GORONTALO Yosef Endri Cahyono; - Hasim; Iswan Dunggio
Gorontalo Journal of Forestry Research VOLUME 4 NOMOR 2 TAHUN 2021 GORONTALO JOURNAL OF FORESTRY RESEARCH
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gjfr.v4i2.1698

Abstract

Daerah Aliran Sungai (DAS) Biyonga merupakan bagian dari DAS Limboto dan sekaligus menjadi daerah tangkapan air dari Danau Limboto. DAS Biyonga memiliki nilai penting bagi kehidupan masyarakat karena potensi ekonomi sumberdaya alam yang sangat besar. Saat ini DAS Biyoga memiliki kerentanan terhadap lingkungan akibat adanya perubahan pengunaan lahan yang berada di bagian hulu DAS. Meluasnya lahan kritis di DAS Biyonga di bagian hulu mengakibatkan terjadinya banjir di daerah Limboto. Tujuan penelitian ini adalah untuk mengidentifikasi kelas penggunan lahan di DAS Biyonga pada tahun 2000, 2010 dan 2020 serta menganalisa pola perubahan penggunaan lahan di DAS Biyonga dari tahun 2000 sampai dengan 2020. Metode yang digunakan yaitu pendekatan analisis spasial dan metode survei lapangan. Pendekatan analisis spasial digunakan untuk melakukan analisa perubahan penggunaan lahan tahun 2000 sampai dengan 2020 dengan memanfaatkan teknologi Sistem Informasi Geografis. Metode survei lapangan dilakukan dalam hal groundcheck terhadap hasil interpretasi penggunaan lahan dari data citra satelit. Hasil penelitian menunjukkan bahwa penggunaan lahan tahun 2020 didominasi oleh pertanian lahan kering seluas 3.744 ha (50,65%). Perubahan penggunaan lahan dari tahun 2000 sampai 2010 didominasi oleh berkurangnya luas hutan sebesar 254 ha dan bertambahnya permukiman sebesar 168 ha. Pada tahun 2010 sampai 2020 didominasi oleh bertambahnya pertanian lahan kering sebesar 322 ha dan berkurangnya semak belukar sebesar 219 ha. Hasil analisa menunjukkan bahwa pola perubahan penggunaan lahan yang terjadi di DAS Biyonga didominasi oleh perubahan penggunaan lahan hutan menjadi pertanian lahan kering, semak belukar menjadi pertanian lahan kering dan sawah menjadi permukiman.
Pola Aktivitas Pengolahan Pertanian Jagung yang Berdampak pada Kerusakan Lingkungan di Kabupaten Gorontalo Bambang Mamangkay; Dewi Wahyuni K. Baderan; Marini Susanti Hamidun; Iswan Dunggio
JAMBURA GEO EDUCATION JOURNAL Vol 4, No 1 (2023): Jambura Geo Education Journal (JGEJ)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgej.v4i1.17258

Abstract

The aim of the research was to find out the pattern of corn agricultural processing activities that were consistent or not carried out by farmers and the impact of the corn processing process in Gorontalo Regency..The data collection method used a questionnaire, and the sample in this study was the Gorontalo Regency Corn Farmers Association (GAPOKTAN) which was determined using the slovin formula with an estimation error of 10%. The method of collecting data on corn processing activities uses the Proportional Random model with a population of land managed by corn farmers in Gorontalo Regency. Data analysis for drawing conclusions using the Guttman approach. The results of the study found patterns of corn agricultural processing activities in Gorontalo District that were consistently carried out, namely on pre-planting indicators including land clearing using pruning machines, use of pesticides, and burning of straw biomass and pastures. The indicators for planting the types of seeds used are Bisi and NK in one year 2 harvests. Treatment indicators include: the use of synthetic fertilizers, and the use of weed killer pesticides, harvest indicators include the activity of picking up the harvest, peeling, and delivering the harvest to the point of sale. In the processing of land, farmers have an advantage if the yield is above 5 tons and a loss if the yield is below 3 tons. The findings from this study are that the pattern of corn agricultural processing activities in the form of burning biomass, burning energy from conventional machines, and using fertilizers and pesticides is very massive which has an impact on environmental damage. In the processing of land, farmers have an advantage if the yield is above 5 tons and a loss if the yield is below 3 tons. The findings from this study are that the pattern of corn agricultural processing activities in the form of burning biomass, burning energy from conventional machines, and using fertilizers and pesticides is very massive which has an impact on environmental damage. In the processing of land, farmers have an advantage if the yield is above 5 tons and a loss if the yield is below 3 tons. The findings from this study are that the pattern of corn agricultural processing activities in the form of burning biomass, burning energy from conventional machines, and using fertilizers and pesticides is very massive which has an impact on environmental damage.
VEGETATION STRUCTURE, BIOMASS, AND CARBON STOCK OF MANGROVE FOREST IN EASTERN POHUWATO DISTRICT, MARISA SUB-DISTRICT Liberty Lodjo; Dewi Wahyuni K. Baderan; Marini Susanti Hamidun; Sukirman Rahim; Iswan Dunggio
Indonesian Journal of Chemistry and Environment Vol 6, No 2 (2023): DECEMBER 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i2.68288

Abstract

Background: Mangrove forests are forests that have the potential to mitigate climate change from the effects of global warming, because mangroves can absorb CO2 in the atmosphere. Mangrove areas in the coastal area of East Pohuwato Regency, Marisa District are quite numerous and have the potential to absorb carbon, so that with a large enough carbon absorption can be able to reduce the levels of CO2 contained in the air. Objective: This study aims to identify vegetation structure, biomass, and carbon stocks in the coastal area of East Pohuwato Regency, Marisa District. Results: the study showed that there were 8 types of mangroves, including Soneratia alba, Rhizophora mucronata, Ceriops decandra, Ceriops tagal, Avicennia marina, Rhizophora stylosa, Sonneratia caseolaris, Rhizophora apiculata. The highest IVi value was found in the Ceriops decandra species with an IVi value of 119.21 in the tree category, then for the sapling category which had the highest IVi value found in the Rhizophora apiculata species of 98.6, for the seedling level the IVi value was found in the Rhizophora apiculata species of 80.23%. The total biomass value is 37,027.2 Kg/ha and the carbon contained in the mangrove forest of East Pohuwato Regency, Marisa District is 18,535.7 Kg C/ha with carbon dioxide absorption of 68027.5 Kg CO2/ha. Conclusion: There are 8 types of mangrove species found in the mangrove forests of the Coastal Area of East Pohuwato Regency, Marisa District at.
Dampak Covid19 terhadap Perubahan Truktur Mata Pencaharian Petani di Provinsi Gorontalo Zulham Sirajuddin; Iswan Dunggio
MAHATANI: Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal) Vol 5, No 2 (2022): Mahatani : Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal)
Publisher : Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52434/mja.v5i2.2044

Abstract

Pandemi Covid19 telah berdampak pada perekonomian masyarakat Indonesia, salah satunya adalah petani. Tujuan penelitian ini adalah untuk mengetahui dampak Covid19 terhadap perubahan struktur mata pencaharian petani di Provinsi Gorontalo. Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif dan kuantitatif. Hasil penelitian ini menunjukkan bahwa pandemi Covid19 memiiki dampak langsung terhadap struktur mata pencaharian petani utamanya pada petani buruh dan serabutan, dan pada petani di periphery perkotaan, serta dampak tidak langsung melalui penurunan Nilai Tukar Petani (NTP) dan kemiskinan pedesaan. Kebijakan ke depan sebaiknya fokus pada sasaran petani buruh dan buruh lepas serabutan, petani wilayah periphery, dan petani pangan. Kebijakan ke depan juga sebaiknya mampu menopang kelancaran proses produksi meski di tengah pembatasan sosial akibat pandemi, kelancaran distribusi saprodi, serta membuka lapangan pekerjaan baru di pedesaan.
Analisis Indikator Kimia dan Fisika Air Untuk Menentukan Kualitas Air di Sub Daerah Aliran Sungai Biyonga Provinsi Gorontalo Dunggio, Iswan; Musa, Weni JA; Iyabu, Hendri
Jambura Journal of Chemistry Vol 6, No 1 (2024): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jambchem.v5i1.21465

Abstract

This study aims to determine the environmental quality in Biyonga Sub Watershed based on chemical and physical water quality characteristics. The research was conducted for 3 months in 3 parts of Biyonga sub-watershed area in Gorontalo Regency. Water quality was measured directly in the field and in the laboratory. Sampling was carried out in the upstream, middle and downstream areas of the Biyonga sub-watershed. Parameters tested were temperature, pH, TSS, BOD, COD, DO, nitrate, total nitrogen and total coliform. The results of the analysis in the upstream part of the Biyonga sub-watershed in the village of Tapalulo (point 1) showed that the COD and BOD parameters did not meet the standard requirements. Furthermore, in the middle part of Biyonga village (point 2) and in the downstream part of Biyonga sub-watershed, the TSS, COD, BOD and DO parameters are above the quality standards or do not meet the water quality standards. The accumulation of agricultural activities, domestic activities and small industries producing liquid wastes are the main causes of the lower water quality in the downstream part of the Biyonga sub-watershed. Based on the results of chemical and physical water tests, the water sources in the middle and lower reaches of the Biyonga River cannot be used as freswater sources
The Impact of Mining Activities on Ecology Condition and in the Marisa Watershed Pohuwato Regency, Gorontalo Province Feri Novriyal; Herlindah; Nur Meyla Ulfiana Botutihe; Fajran Bentearu; Iswan Dunggio; Fitryane Lihawa; Marini Susanti Hamidun
International Journal of Health, Economics, and Social Sciences (IJHESS) Vol. 6 No. 2: April 2024
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v6i2.5323

Abstract

The Marisa watershed with an area of 248.43 km2 is one of the watersheds in the Paguyaman Watershed. The upstream area of the Marisa Taluduyunu River in Marisa District empties into the coastal waters of the south coast of Pohuwato Regency. Almost all the riverbanks are used by local communities for traditional gold mining. Some of these mining businesses are managed traditionally using mercury, and the waste produced without being managed is directly thrown into the environment. This research aims to analyze the impact of illegal mining on land and the Marisa watershed. The method used to analyze the data is descriptive qualitative based on field observation data and literature studies. Observations from various mining locations show that the removal of the topsoil causes the soil to be unproductive for plant growth around the mining location or site. River pollution is also one of the impacts that can be seen at mining locations. Gold ore processing, especially if the amalgamation process uses mercury, spreads mercury to environmental components, especially water quality and aquatic biota. The water quality that is most affected by mining and gold ore processing activities includes increased concentrations of suspended solids and mercury concentrations. The impact of traditional gold mining activities greatly affects the water quality components, namely, total suspended solids and dissolved mercury concentration. The concentration of total suspended solids poses a risk of harm to aquatic organisms. Concentrations of dissolved mercury metal have the potential to reduce the quality of fishery products.
Stakeholder Analysis in the Management of the Biyonga Watershed (DAS) Gorontalo Regency-Gorontalo Province Herlindah; Isra Cahayani Bahuwa; Zein Setiawan Kadir; Fitryane Lihawa; Iswan Dunggio
International Journal of Health, Economics, and Social Sciences (IJHESS) Vol. 6 No. 3: July 2024
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v6i3.5709

Abstract

Several factors cause damage to the watershed areas, such as changes in land cover, erosion, sedimentation, and the increase of critical land, which occurs almost throughout the Biyonga sub-watershed area. Another factor contributing to the damage of the Biyonga sub-watershed is the management of the Biyonga sub-watershed itself. The Biyonga sub-watershed is one of the priority sub-watersheds within the Limboto watershed. One proposed solution is to map the stakeholders involved in the management of the sub-watershed. This study aims to analyze the stakeholders involved in the management of the Biyonga sub-watershed. Stakeholder analysis is crucial to determine the implementation of policies and programs in the Biyonga sub-watershed area based on changes in the biophysical and socio-economic conditions of the watershed. Data collection methods include interviews and focused discussions. The analysis used in this study is stakeholder analysis and policy implementation analysis. Based on the analysis results, there are nine stakeholders involved in the management of the Biyonga watershed. These stakeholders include key players such as the Bone Bolango Watershed Management Agency (BPDAS), Sulawesi River Basin Agency II (BWS), Regional Development Planning Agency (Bappeda), Provincial Environmental and Forestry Service (DLHK) of Gorontalo, Environmental Service of Gorontalo Regency, Public Works and Public Housing Service (PUPR), and Forest Management Unit VI of Gorontalo. Meanwhile, the subject stakeholders consist of the community, NGOs, and universities.
HUBUNGAN KONDISI SOSIAL EKONOMI MASYARAKAT PETANI TERHADAP DEGRADASI LAHAN DI DAS ALO POHU PROVINSI GORONTALO Salote, Moh Khamal; Lihawa, Fitryane; Dunggio, Iswan
JAMBURA GEO EDUCATION JOURNAL Vol 3, No 2 (2022): Jambura Geo Education Journal (JGEJ)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgej.v3i2.14838

Abstract

The purpose of the study was to analyze the socioeconomic conditions of the community and their relationship to land degradation in the Alo Pohu watershed, Gorontalo Province. The research method used in this study is a survey method with a total population of 79,828 people. The sampling method is a purposive sampling method with the criteria of people working as farmers determining the number of samples based on the Slovin formula, and the number of samples is 392 people. The socioeconomic parameters studied are education level, knowledge, income, household expenses, land ownership, and the number of dependents. In addition, perceptions and parameters of land degradation are determined based on the criticality level of the land. The data collection method is a questionnaire method. The data analysis used is quantitative and descriptive. A cross-table analyzes the relationship between socioeconomic conditions and land degradation. The results showed three socioeconomic parameters that significantly affected land degradation in the Alo Pohu watershed: education level, land ownership, and knowledge of critical land. 
KOLABORASI PEMERINTAH DAN MASYARAKAT DALAM PENGELOLAAN SAMPAH BERBASIS KEBIJAKAN LINGKUNGAN DI DANAU PERINTIS KECAMATAN SUWAWA KABUPATEN BONE BOLANGO Rahmawati A. Damiti; Sukma Dewanty Jahja; Marini Susanti Hamidun; Iswan Dunggio
Journal of Scientech Research and Development Vol 6 No 2 (2024): JSRD, December 2024
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jsrd.v6i2.617

Abstract

Danau Perintis, terletak di Kecamatan Suwawa, Kabupaten Bone Bolango, berfungsi sebagai area multifungsi untuk pengendalian banjir, penyimpanan air, dan pengembangan pariwisata. Namun, wilayah ini menghadapi tantangan lingkungan yang signifikan, termasuk penumpukan sampah dan pertumbuhan eceng gondok yang tak terkendali. Penelitian ini bertujuan untuk mengevaluasi kebijakan lingkungan dan strategi pengelolaan sampah yang diterapkan oleh otoritas lokal dan masyarakat untuk mengurangi polusi dan meningkatkan keberlanjutan. Dengan menggunakan pendekatan kualitatif melalui observasi langsung, wawancara, dan dokumentasi, ditemukan tidak adanya pemilahan sampah, kurangnya partisipasi masyarakat, dan kurangnya koordinasi pemerintah. Rekomendasi yang diberikan mencakup penerapan prinsip 3R (Reduce, Reuse, Recycle), koordinasi antar pemangku kepentingan.
Co-Authors -, Ahmad Faqih Achmad, Fariz Adam, Verra Ahmad Zainuri Andi Chairil Ichsan Asep Nurdin Ashari, Firmansyah Bahuwa, Isra Cahayani Bambang Mamangkay Botutihe, Nur Meyla Ulfiana Daud Yusuf Desey, Herlina Dewi Sartika T. Zees Dewi Wahyuni K. Baderan Efendy Payuyu Eka Reza Saputra Widodo Fajran Bentearu Farid SM Feri Novriyal Fery Rahmat Angriawan Bagu Fitriyane Lihawa Fitriyane Lihawa Fitriyane Lihawa Fitriyane Lihawa Fitryane Lihawa Frandika K. Toiyo Frandika K. Toiyo Fuad Pontoiyo Golfred Alex Kojongkam Hasim Hasim Hasim Hasim Hasim Hasim, H Hazairin Thamrin Hendra Gunawan Hendri Iyabu Herlina Desey Herlindah Heru Z Thalib Irawan, Mohammad Bayu Isra Cahayani Bahuwa Juramang, Risnayanti Kadir, Zein Setiawan Kadir, Zen Setiawan La Alio Liberty Lodjo Lihawa, Fitriyane Marini Susanti Hamidun Mawardi Heru Prasetyo Misnawaty Wantogia Mohamad Zainudin Usman Mohamad, Nurdin Mohammad Bayu Irawan Mosi, Yetty Muhammad Yusuf MUHAMMAD YUSUF musa, weni ja Mutmainnah Usman Ningsih Rahman Novalia Warow Novriyal, Feri Nur Meyla Ulfiana Botutihe Nurdin . Nurdin Mohamad Nurdin, Isra Nurma Rosalia Pakaya, Moh. Reynaldi Pakaya, Parid Parid Pakaya Prasetyo, Mawardi Heru Puspaningrum, Dian Rahman Hasan Rahmanto Lahili Rahmawati A. Damiti Ramli Utina Risma Neswati, Risma Rival Rahman, Rival Rosalia, Nurma Salote, Moh Khamal Saputra Widodo, Eka Reza Siti Amalia Gobel Situmeang, Dody Boy Venalocha SM, Farid Sofyan Abdullah Sofyan Abdullah, Sofyan Sudarmanto Hasan Sukirman Rahim Sukma Dewanty Jahja Supriyatna Supriyatna Suryadi Syamsuddin Suryadi Syamsudin Syam S. Kumaji Toiyo, Frandika K. Usman, Mutmainnah Wantogia, Misnawaty Waode Faridawaty Warow, Novalia Weny J.A Musa Yosef Endri Cahyono Yusfriandi Dwi Ariesna Zein Setiawan Kadir Zulham Sirajuddin Zuliyanto Zakaria