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Rahayu, Rachmawati Noviana
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Analysis of Water Quality in The Srigangga River Flow, Central Lombok Supardiono, Supardiono; Rahayu, Rachmawati Noviana; Isrowati, Isrowati; Ernawati, Ernawati
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.6394

Abstract

The Srigangga River is one of the main rivers flowing into the Batujai Reservoir basin in Central Lombok Regency, West Nusa Tenggara Province. Communities around this area still use river water to fulfill their daily needs. The many activities of residents around this river area affect the decline in river water quality. This research aims to determine river water quality based on physical, chemical, and biological parameters and determine the river water pollution index using the pollution index method. This type of research is a descriptive research method with a laboratory-based approach; sampling locations are carried out in the river's upstream, middle, and downstream parts. The parameters analyzed include pH, TSS, DO, COD, BOD, Phosphorus content, total coliform, and Escherichia coli. The research results show that of the 8 (eight) parameters tested in the upstream, middle, and downstream parts of the Srigangga River, 4 (four) parameters are above the quality standards determined based on PP RI No.22 of 2021. The water pollution index value shows that the Srigangga River is already polluted in the light category
Analysis of Residential Well Water Quality Around People's Gold Mines in the Tourist Area of Dusun Selindungan Rahayu, Rachmawati Noviana; Suripto; Ahyadi, Hilman
Jurnal Penelitian Pendidikan IPA Vol 10 No 7 (2024): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i7.8200

Abstract

The Sekotong area has natural charm and potential mining. This area is one of the preferred destinations for visits by local and foreign tourists. However, apart from that, the Sekotong area is also famous as a community gold mining area. Mining activities carried out still use traditional methods, which are very far from environmentally friendly principles, so they can have impacts, including causing a decrease in the quality of residential well water. This research was conducted to determine the water quality of residential wells around community gold mining in the tourist area of Dusun Selindungan Eleven well water samples were taken using a purposive sampling method based on the distance of the well to the source of gold mining waste disposal and are still used by residents to meet their daily needs. Physical, chemical and biological water quality parameters of water samples were investigated in the laboratory, except temperature and pH were measured directly in the field. Data for each water quality variable was analyzed to determine the pollution index. The results show that DO, TDS, content of phosphate, E. Coli bacteria and total coliforms in well water from the study area generally exceed quality standardsWell water in an area that is a different distance from the people's gold mining waste disposal site has each been contaminated with manganese and mercury, although it is still below quality standards.
Sosialiasi Upaya Konservasi Tanaman Pangan dan Kecantikan di Kawasan Ruang Terbuka Hijau Udayana Isrowati, Isrowati; Rohyani, Immy Suci; Jupri, Ahmad; Ernawati, Ernawati; Rahayu, Rachmawati Noviana; Pratama, Lalu Galih Putra
Sinergi dan Harmoni Masyarakat MIPA Vol. 1 No. 1 (2024): Oktober
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sinonim.v1i1.5563

Abstract

Tanaman merupakan sumber kehidupan bagi masyarakat yang berpotensi sebagai pangan dan bahan kecantikan. Lombok memiliki jenis tanaman pangan dan kecantikan yang dimanfaatkan oleh masyarakat. Pemanfaatan secara optimal dan berkelanjutan merupakan salah satu upaya konservasi. Konservasi tanaman harus melibatkan semua elemen masyarakat. Pengabdian sosialiasi upaya konservasi tanaman pangan dan kecantikan bertujuan untuk meningkatkan pengetahuan terhadap jenis dan pemanfaatan tanaman serta upaya konservasi di kawasan Ruang terbuka Hijau Udayana. Pelaksanaan kegiatan meliputi tiga tahapan yaitu persiapan, pelaksanaan dan evaluasi. Tahapan persiapan terdiri dari survey lokasi dan diskusi, tahapan pelaksanaan terdiri dari penyampaian materi melalui media poster dan tahapan evaluasi dengan pengisian kueioner oleh peserta. Hasil sosialisasi menunjukan adanya peningkatan pengetahuan masyarakat terkait jenis dan pemanfaatan tanaman pangan dan kecantikan. Upaya konservasi pemanfaatan secara berkelanjutan oleh masyarakat dilakukan dengan tiga acara yaitu menanam tanaman terlebih dahulu, mengambil langsung di alam dan membeli di pasar. Kegiatan sosialisai mampu meningkatkan partipasi masyarakat dalam upaya konservasi tanaman pangan dan kecantikan. Secara keseluruhan kegiatan pengabdian berjalan dengan baik dan Lancar
Sosialisasi Analisis Kualitas Lingkungan Berdasarkan Bioindikator yang ada di Lingkungan Sekitar Ernawati, Ernawati; Rohyani, Immy Suci; Jupri, Ahmad; Isrowati, Isrowati; Rahayu, Rachmawati Noviana; Reda, Reda
Sinergi dan Harmoni Masyarakat MIPA Vol. 1 No. 2 (2025): April
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sinonim.v1i2.6630

Abstract

A healthy and sustainable environment is critical for sustaining ecological balance and increasing human well-being. However, other human activities, such as industrialization, urbanization, and the use of chemicals in agriculture, can have a negative impact on the environment. As a result, the community requires an effective and simple way for integrating their surroundings. Bioindicator-based analysis is one approach of assessing environmental quality. Bioindicators are creatures whose presence, quantity, or physical condition can reflect the state of their surroundings. Plankton, macrozobenthos, moss, lichen, soil insects, and other microorganisms are examples of bioindicators. This community service project seeks to raise public awareness of the significance of bioindicators in environmental quality assessment, as well as how to identify the many types of bioindicators found in the surrounding environment and how to utilize them to assess air, soil, and air quality. The community service activity is divided into three stages: preparation (site survey and activity needs, permissions), implementation (socialization and poster exhibition), and assessment (participants completing questionnaires). The community service activity ran successfully. Throughout the socialization activities, all participants were engaged and eager. The material supplied was fresh to the participants and would be fascinating to examine further. Furthermore, participants were interested in attempting to determine environmental quality by observing the presence of bioindicators around them. Socialization activities were also able to instill in participants a sense of awareness and concern for environmental changes, prompting them to take an active role in sustaining the ecosystem in their surrounds.
Analysis of Tree Fall Hazard Risk: A Case Study at the University of Mataram Campus Suripto; Supardiono, Supardiono; Rahayu, Rachmawati Noviana; Dujana, Lalu Muhammad Aby; Genggelang, Feby Ayu
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.13045

Abstract

The Mataram University campus has shade trees in almost all area units, some of which are still quite ideal and some of which show problems with tree architecture deviations, such as trunk declivity and canopy inclination, which can cause the risk of tree fall. This study was conducted to analyze the distribution of tree fall risk based on tall, trunk declivity and canopy inclination on the Mataram University campus. The sample area was taken using the purposive sampling method and then sampling trees in each sample area unit using the quarter method. Tree variables observed were tall, trunk declivity and canopy inclination. The data were processed respectively to produce tree tall, trunk declivity, and canopy inclination classes. These data were then further analysed in an integrated manner to produce a value of tree-fall hazard risk. These tree-fall hazard values were interpreted into 5 categories, namely not hazardous, somewhat hazardous, quite hazardus, hazardous, and very hazardous. The results show that of the 108 shade trees on the Mataram University campus, 38.01% of the trees were in categories requiring immediate attention or action (moderately hazardous to very hazardous). Zone 1 was the only zone with the highest risk (0.93% very hazardous).
Analysis of Leaf Area Index of Shade Trees and Its Relationship with the Discomfort Index: A Case Study at the University of Mataram Campus Suripto, Suripto; Rahayu, Rachmawati Noviana; Supardiono, Supardiono; Dujana, Lalu Muhammad Aby; Genggelang, Feby Ayu
Jurnal Pijar Mipa Vol. 20 No. 7 (2025): in Progress
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10455

Abstract

The development of shade trees on the Mataram University campus is intended to maintain environmental comfort, as well as add beauty. The microclimate softening function of trees is largely determined by the density of their canopies, known as the leaf area index (LAI). Various LAI measurement methods have been developed, which are generally more suitable for assessing tree productivity but less valid for assessing the ability to soften the microclimate or decrease the discomfort index (DI). This study was conducted to analyze the distribution of LAI of shade trees and their relationship with the DI on the Mataram University campus. To obtain a more valid LAI value, the leaf area variable measured was the leaf area forming the canopy, replacing the leaf area on the canopy surface, as was done in previous studies. Microclimate variables measured to determine the discomfort index (DI) were air temperature and relative humidity. The results showed that the LAI of 108 trees (33 species) spread across 9 zones within the Mataram University campus ranges from 1.2630 (very small category) to 9.6735 (very large category). The DI values under the canopy of trees ranged from 23.225 (quite comfortable category) to 26.869 (somewhat comfortable category). The relationship between LAI of shade trees and DI on the campus of Mataram University was linear and negative, with the resulting regression equation being y = 28.1204-0.4749x. If LAI increased, then DI tended to decrease; conversely, if DI increased, then LAI tended to decrease. The function of campus trees in softening the microclimate can be enhanced by improving their LAI.
Pelatihan Pembuatan Kebun Obat Tradisional Berbasis Tumbuhan Lokal Di Dusun Murpeji Desa Dasan Griya Kabupaten Lombok Barat Rohyani, Immy Suci; Jupri, Ahmad; Ahyadi, Hilman; Isrowati; Rahayu, Rachmawati Noviana; Dujana, Lalu Mahammad Aby; Faudziah, Totum Aurora; Juliani
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13410

Abstract

Dusun Murpeji Desa Dasan Griya merupakan daerah perbatasan antara kota Mataram dengan kabupaten Lombok Barat. Mata pencarian sebagai besar masyarakat adalah petanian dan perkebunan. Desa ini merupakan desa yang sangat subur karena terdapat banyak sumber mata air dan sungai yang mengaliri sebagian besar sawah masyarakat. Masyarakat belum maksimal memanfaatkan pekarangan mereka untuk sumber obat keluarga, beberapa lahan juga dibiarkan kosong, kebun masyarakat juga banyak ditumbuhi oleh tumbuhan liar yang memiliki potensi sebagai sumber obat yang belum termanfaatkan. Tumbuhan obat lokal sejauh ini belum dikenal dan dimanfaatkan secara maksimal oleh masyarakat. Luaran dari kegiatan pengabdian ini adalah adanya kebun obat masyarakat di dusun Murpeji berbasis tumbuhan lokal untuk peningkatan kesehatan dan kesejahteraan keluarga. Kebun obat juga diharapkan sebagai wadah untuk kegiatan konservasi masyarakat dengan memperbanyak dan membudidayakan tumbuhan lokal sebagai sumber plasma nutfah. Metode yang digunakan dalam kegiatan ini adalah Focus Group Discuss (FGD) untuk menentukan kebutuhan dan jenis kegiatan yang sesuai dengan sasaran dan praktik langsung sejak mulai dari persiapan hingga akhir kegiatan. Kegiatan pelatihan pembuatan obat menggunakan pola pembimbingan dimana masyarakat dirangsang untuk terlibat langsung dalam proses pembuatan produk dan membentuk kelompok kerja bersama. Hasil kegaiatan pengabdian di Dusun Murpeji menunjukkan antusiasme tinggi dari peserta. Masyarakat telah memiliki pengetahuan dasar terkait jenis, manfaat, dan teknik budidaya tumbuhan obat meskipun masih terbatas. Keberhasilan kegiatan pengabdian dapat dilihat dari peningkatan pengetahuan masyarakat dari yang awam tentang tumbuhan obat menjadi tahu terkait tumbuhan yang dapat dimanfaatkan sebagai obat dan adanya peta tumbuhan obat di dusun Murpeji berbasis pengetahuan masyarakat.
Co-Authors Abidin, Gunawan Ahmad Jupri AIDA MUSPIAH Akbar, Cahyo Aditya Assyifa, Baiq Tiara Wimadhia Azhari, Eli Baiq Fadila Arlina Bakti, Lalu Arifin Aria Dujana, Lalu Mahammad Aby Dujana, Lalu Muhammad Aby Ernawati Ernawati Ernawati Fadila, Baiq Arlina Fadli Farista Farista, Baiq Faudziah, Totum Aurora Genggelang, Feby Ayu Hidayati, Cita Rizqi Hilman Ahyadi Immy Suci Rohyani Isrowati Isrowati, Isrowati Juliani Julisaniah, Nur Indah Komang Adi Kurniawan Saputra Lalu Japa, Lalu Natacha Amalia Nurhidayatullah Nurhidayatullah, Nurhidayatullah Pratama, Lalu Galih Putra Putra, Hengki Adriyan Reda, Reda Rozi, Tapaul Safata, Hendri Oky Saniah, Nur Indah Juli Siddiq, Muhammad Faqih Siti Raudhatul Kamali Supardiono Supardiono, Supardiono Suripto Suripto Suripto Tahsya, Muhammad Abu Virgota, Arben Wahyuni, Elisa Darmasari Widianti, Astrini Widiyanti, Astrini