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COMPARISON OF SEVERAL RED EDGE BAND SENTINEL SATELLITE IMAGERY FOR MANGROVE MAPPING IN LEMBAR BAY LOMBOK INDONESIA Sukuryadi Sukuryadi; Harry Irawan Johari; Nurin Rochayati; Mas'ad Mas'ad; Alfian Pujian Hadi
GEOGRAPHY : Jurnal Kajian, Penelitian dan Pengembangan Pendidikan Vol 9, No 1 (2021): APRIL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/geography.v9i1.4276

Abstract

The use of the vegetation index algorithm in determining density is a challenge for researchers to find out the ability of an algorithm to accurately present vegetation information. Each vegetation index produces different accuracy values for the value of the density of mangroves depending on the combination of bands used. This study aimed  to evaluate those red edge band sentinel satellite imagery 2B for mangrove mapping using the algorithm of modified SR and NDVI. The research method used is the direct or indirect survey method. The algorithm analysis of the vegetation index used in this study is NDVIred edge, NDVIred and red edge, MSRred edge, MSRred  and red edge. Correlation analysis, determinant, and Root Mean Square Error (RMSE) were used to test the accuracy of the analysis results for each of the vegetation index algorithms. Based on the comparison results, the NDVIred and red edge algorithm are the most reliable because they have the lowest RMSE value (0.05) with a high correlation and determinant coefficient values between the vegetation index values with their respective field density values 82 % and 0.90. Thus, the extraction results of the NDVIred and red edge algorithm are the closest to the actual conditions in the field.
DAMPAK PENAMBANGAN GALIAN C DI DAERAH ALIRAN SUNGAI BENTEK TERHADAP LAHAN PERTANIAN DUSUN BENTEK DESA PEMENANG BARAT KABUPATEN LOMBOK UTARA Agus Beni Hariawan; Alfian Pujian Hadi; Khosi’ah Khosi’ah
GEOGRAPHY : Jurnal Kajian, Penelitian dan Pengembangan Pendidikan Vol 6, No 1 (2018): APRIL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.734 KB) | DOI: 10.31764/geography.v6i1.1405

Abstract

Abstrak: Banyaknya penambangan bahan galian C berupa pasir dan batu yang tersebar di  daerah aliran sungai berdampak pada lingkungan sekitar. Sehingga hal ini perlu diadakan penelitian lebih lanjut. Penelitian bertujuan untuk mengetahui aktivitas galian C di  daerah aliran Sungai Bentek dan dampak galian C didaerah aliran Sungai Bentek terhadap lahan pertanian Dusun Bentek Kabupaten Lombok Utara. Rancangan penelitian ini  yaitu penelitian deskriptif dengan pendekatan kuantitatif Populasi pada penelitian ini adalah masyarakat Dusun Bentek baik yang terlibat langsung dalam penambangan pasir maupun yang terkena dampak penambangan pasir. Teknik pengumpulan data dalam penelitian ini dilakukan melalui observasi, dokumentasi dan wawancara, sedangkan untuk menganalisis data dalam penelitian ini mengggunakan deskriptif kualitatif. Hasil  penelitian  membuktikan  bahwa  aktivitas galian C di sungai Bentek berdampak pada kerusakan lahan pertanian Dusun Bentek. Aktivitasgalian C yang terjadi merupakan jenis penambangan ilegal, karena penambang tidak memiliki izin penambangan rakyat yang sah. Kurangnya  perhatian dari pemerintah serta  rendahnya  kesadaran  masyarakat mengakibatkan  masyarakat  menambang  melakukan dengan  penuh  kebebasan  sehingga  dapat merusakan lahan pertanian, sebab lokasi penambangannya sangat dekat dengan lahan pertanian sehingga terjadinya erosi tanah dan banjir. Kerusakan lahan pertanian ini  telah  mempengaruhi pendapatan para petani. Oleh sebab itu diharapkan kepada pemerintah dan masyarakat setempat untuk memperhatikan dan menjaga lingkungan tersebut.
Studi Ketersediaan Sumber Air Untuk Pemenuhan Kebutuhan Rumah Tangga di Desa Ranggagata Kecamatan Praya Barat Daya Kabupaten Lombok Tengah Harry Irawan Johari; Roy Maulana Ansori; Alfian Pujian Hadi
Jurnal Planoearth Vol 5, No 2: Agustus 2020
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpe.v5i2.3248

Abstract

Desa Ranggagata Kecamatan Peraya Barat Daya Kabupaten Lombok Tengah ’’ yang mana daerah ini mengalami masalah pada sumber air bersih. Tujuan penelitian ini untuk mengetahui ketersediaan sumber air bersih yang digunakan penduduk untuk memenuhi kebutuhan rumah tangga dan upaya yang dilakukan oleh masyarakat untuk menanggulangi kekurang air bersih di Desa Ranggagata  Kecamatan Praya Barat Daya Kabupaten Lombok Tengah. Metode penelitian menggunakan penelitian kualitatif dengan teknik pengumpulan data dalam penelitian menggunakan observasi, wawancara dan dukumentasi. Analisis data dengan model interaktif analisis dengan reduksi. Hasil penelitian dapat disimpulkan bahwa ketersediaan air bersih di desa Ranggagata sudah mengupayakan semaksimal mungkin supaya di tahun 2020 sudah terpenuhi dan upaya dalam menanggulangi kekurangan air bersih sudah ada bantuan dari kepala desa maupun dari PDAM.Abstract:  Ranggagata Village, Praya Barat Daya District, Central Lombok Regency '' where this area has problems with clean water sources. The purpose of this study was to determine the availability of clean water sources used by residents to meet household needs and the efforts made by the community to overcome the lack of clean water in Ranggagata Village, Praya Barat Daya District, Central Lombok Regency. The research method uses qualitative research with data collection techniques in research using observation, interviews and documentation. Data analysis using an interactive model of analysis with reduction. The results of the study can be concluded that the availability of clean water in the village of Ranggagata has made every effort so that in 2020 it has been fulfilled and steps to overcome the shortage of clean water have received assistance from the village head and from the Regional Water Company.
Kajian Daya Dukung Fungsi Lindung dan Lahan Berbasis Spasial di Kabupaten Sumbawa Alfian Pujian Hadi; Dewi Putri Lestari; Nurin Rochayati; Mas’ad Mas’ad; Firman Ali Rahman
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v9i2.4248

Abstract

This study aims to determine the carrying capacity of the protected function and the carrying capacity of land based on the ratio of land availability and demand for land in Sumbawa Regency. The research method uses a quantitative descriptive approach with an analysis of the carrying capacity of the protected function and the analysis of the carrying capacity of the land is carried out using an approach to land availability and land requirements. The results showed that the carrying capacity of the protected function of 24 sub-districts in Sumbawa Regency obtained 4 sub-districts (16.7%) in very good category, 6 sub-districts (25%) in good category, 2 sub-districts (8.3%) in moderate category, 3 sub-districts ( 12.5%) in the damaged category, and 9 sub-districts (37.5%) in the very damaged category. The sub-districts that fall into the category of severely damaged environmental carrying capacity include: Labuhan Badas, North Moyo, Moyo Hulu, Ropang, Lape, Lopok, Labangka, Maronge, and Tarano sub-districts with an environmental carrying capacity value below 0.20. The sub-districts in Sumbawa Regency that have a deficit land carrying capacity status (25%), include: Alas, Utan, Buer, Rhee, Batulanteh, Sumbawa, and Unterwilis sub-districts. Judging from the ratio of land availability and land demand, it is known that Alas, Sumbawa, and Labuhan Badas sub-districts have the smallest ratio, meaning that the level of land demand in the three sub-districts is high compared to land availability, so that the existing land is no longer able to support the needs of the population.
Analisis Kandungan Karbon pada Vegetasi Mangrove di Desa Lembar Kabupaten Lombok Barat Siti Wardatul Jannah; Firman Ali Rahman; Alfian Pujian Hadi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v9i2.4303

Abstract

The mangrove ecosystem is one of the vegetation that has a role as carbon mitigation in coastal areas, especially in port activity areas that can produce large amounts of carbon, such as in Lembar Harbor, Lembar Village, West Lombok Regency. The purpose of this study was to analyze the carbon content in the root and leaf tissue contained in each type of mangrove in the Lembar Harbor Area, Lembar Village, West Lombok Regency. This type of research is descriptive quantitative, with purposive random sampling method, which starts with taking root and leaf samples on each different mangrove species, and testing is carried out based on the Walkley & Black method to obtain tissue carbon content. Based on the results of the study, found 8 (eight) families consisting of 11 species, including: Avicennia lanata, Avicennia marina, Lumnitzera racemosa, Bruguiera gymnorrhiza, Rhizophora stylosa, Ceriops decandra, Scyphiphora hydrophyllaceae, Excoecaria agallocha, Thespesia populnea, Xylocensis, and Ipome pescaprae. The condition of the environmental parameters of the mangrove ecosystem in Lembar Village is still in good condition, in accordance with the quality standards of water health quality, Decree of the State Minister of the Environment Number 51 of 2004 concerning sea water quality standards for biota. The average organic carbon content of root tissue was 43.47 ± 3.10 %C and leaves was 43.87 ± 3.66 %C. The highest organic carbon content in root tissue was found in Xylocarpus moluccensis (47.46 %C), and the lowest was in Ipomea pescaprae (41.49 %C), while the highest organic carbon content in leaf tissue was in Bruguiera gymnorrhiza (50.60 %C), and the lowest was Avicennia lanata (38.99 %C). Based on Tukey's further test that the value of organic content stored in the root and leaf tissue of mangroves was not significantly different (> 0.05) with a statistical test value of 0.76.
Kandungan C-Organik Substrat Ekosistem Mangrove di Danau Air Asin Gili Meno Kabupaten Lombok Utara Firman Ali Rahman; Alfian Pujian Hadi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v9i2.4276

Abstract

Gili Meno Lake is one of the salt water lakes located in North Lombok Regency, West Nusa Tenggara Province. Gili Meno saltwater lake has an area of 6.6 hectares with a diversity of biota (flora and fauna) and unique physical and chemical characteristics of the lake waters. The purpose of this study was to determine the total c-organic content of the mangrove ecosystem and the c-organic content contained in the bottom substrate of mangrove stands. This type of research is descriptive quantitative with purposive random sampling method, which starts with sampling the substrate found under mangrove stands and testing in the laboratory using the Walkley & Black method to obtain carbon content. Based on the results of the study found 5 (five) types of mangroves, namely: 1) Avecennia marina; 2) Bruguera cylindrica; 3) Rhizophora apiculata; 4) Lumnitzera racemosa; and 5) Excoecaria agallocha, with the most dominant species being Avecennia marina. The largest % content of substrate carbon was found in the mangrove species Rhizophora apiculata with a total content of 19.995 %C or equivalent to 307.96 tons C/ha. Meanwhile, the potential for the estimated total carbon content of the substrate in the saltwater lake mangrove ecosystem of Gili Meno is 154.2 ± 99.78 tons C/ha or equivalent to 1020.50 tons C in a total of 6.6 hectares of mangrove ecosystem area of the saltwater lake Gili Meno.
PENERAPAN TEKNOLOGI PANEL SURYA PADA BAGAN TANCAP UNTUK PENINGKATAN TANGKAPAN IKAN DITELUK JOR, KABUPATEN LOMBOK TIMUR Dewi Putri Lestari; Alfian Pujian Hadi; Firman Ali Rahman
Jurnal Abdi Insani Vol 7 No 2 (2020): Jurnal Abdi Insani Universitas Mataram
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v7i2.308

Abstract

Penggunaan energi listrik sebagai sumber pencahayaan pada bagan tancap sangat penting dalam penangkapan ikan. Pencahayaan berfungsi menarik ikan mencari sumber makanan di sekitar bagan. Pencahayaan/atraktor cahaya pada bagan bertujuan mengumpulkan ikan karena memiliki sifat fototaksis positif. Ikan yang bersifat fototaksis positif akan berkumpul di daerah cahaya lampu, sehingga memudahkan nelayan untuk menangkap ikan. Permasalahan yang dihadapi oleh nelayan saat ini adalah ketersediaan listrik. Salah satu alternatif penyelesaian permasalahan tersebut berupa penyediaan panel surya pada bagan tancap untuk memenuhi kebutuhan listrik dan menyimpannya dalam baterai Aki. Kegiatan pengabdian ini bertujuan untuk mendemontrasi teknologi panel surya pada bagan tancap sebagai penyedia sumber listrik untuk sumber pencahayaan dalam menangkap ikan, meningkatan pengetahuan melalui pelatihan penggunaan teknologi panel surya, serta menyusun strategi keberlanjutan kegiatan melalui optimalisasi peran lembaga LPATJ serta kerjasama dengan parapihak di Kawasan Teluk Jor, Kecamatan Jerowaru, Kabupaten Lombok Timur. Metode kegiatan yang dilakukan berupa demontrasi melalui pembuatan bagan tancap dengan melakukan instalasi panel surya serta pemasangan aki sebagai alat penyimpan arus listrik. Arus listrik yang tersimpan dalam aki kemudian akan digunakan pada malam hari oleh nelayan pada bagan masing-masing. Hasil kegiatan ini adalah pembangunan bagan tancap beserta demonstrasi peralatan teknologi panel surya dan peralatan pendukung lainnya telah dilakukan, dipahami operasionalisasinya serta digunakan secara langsung oleh kelompok. Pelatihan penggunaan Teknologi Panel Surya dapat menambah pengetahuan dan wawasan terutama pemanenan energi surya menjadi listrik serta penyimpanan listrik pada aki yang akan digunakan oleh nelayan pada malam harinya untuk menangkap ikan. Strategi Keberlanjutan melalui adanya inisiatif LPATJ untuk dapat melakukan kerjasama dengan para pihak untuk semakin mengembangkan penangkapan ikan dengan teknologi ramah lingkungan.
Pembangunan Instalasi Penampungan Air Hujan (IPAH) Untuk Pengurangan Resiko Krisis Air Bersih Markum; Misdarti; Kinasih Citra Arumi; Alfian Pujian Hadi
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 4 (2023): Oktober-Desember 2023
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.5604

Abstract

ABSTRACT. Clean water is a major problem for the residents of Lendang Bontong Hamlet, Sekotong Tengah Village, especially when entering the dry season. Expenditures to buy clean water can reach 25% -40% of their daily income. To meet the need for clean water, there is one spring that is usually used by residents, a distance of 0.6 – 1 km from residential areas, but the water quality has not been tested to meet quality standards. The objectives of the rainwater storage installation (IPAH) construction program are to a) provide a rainwater storage installation, b) carry out analysis and simulation of the IPAH's capacity based on the amount of rainfall (CH), and c) form and train groups for sustainable IPAH management. The method used was applying the principle of active participant participation, through observation and workshop methods, involving as many as 25 heads of households, as potential recipients of IPAH receivers. Based on the process of activities carried out, the following conclusions were obtained; First, a 20-unit IPAH was built and handed over to residents of 20 families. Second, based on the shape and size of the roofs of local residents' houses, the results of the analysis of the relationship between CH and IPAH capacity show that the optimal amount of CH that can be accommodated by a water reservoir (1,100 liters) is 25 mm per day, more than that, rainwater will be wasted. to the catchment. Third, an IPAH management group has been formed whose role is to independently maintain the IPAH if problems or damage occur related to the IPAH and absorption wells Keywords: Construction, IPAH, water crisis