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IDENTIFIKASI INFRASTRUKTUR DASAR UNTUK MENGEMBANGKAN POTENSI DESA WISATA DI DESA PENEBEL, TABANAN I Gusti Ngurah Putu Dharmayasa; I Komang Agus Ariana; Ni Luh Jaya Anggreni; I Gede Fery Surya Tapa
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 6 No. 2 (2025): Volume 6 No. 2 Tahun 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v6i2.44315

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Kegiatan pengabdian ini berfokus pada identifikasi kebutuhan infrastruktur untuk mengembangkan Desa Wisata Penebel di Tabanan, Bali yang memanfaatkan potensi sistem subak. Berdasarkan survei lapangan dan wawancara dengan warga, ditemukan bahwa kawasan ini memiliki saluran air yang ideal untuk aktivitas tubing dengan lebar 1,3 meter dan aliran cukup deras. Namun, beberapa tantangan masih ditemui seperti masalah sampah plastik, kurangnya fasilitas penunjang seperti toilet dan area parkir, serta keterlibatan masyarakat yang masih terbatas. Selanjutnya sesuai hasil survey dan wawancara dapat direkomendasikan beberapa solusi konkret, antara lain perbaikan tepian saluran dengan paving block, pembangunan fasilitas sanitasi yang ramah lingkungan, pemasangan penyaring sampah di bagian hulu, serta pelatihan pemanfaatan media sosial bagi warga. Program ini dilaksanakan melalui kolaborasi antara akademisi, pemerintah desa, dan masyarakat, sekaligus mendukung pencapaian Tujuan Pembangunan Berkelanjutan (SDGs), khususnya di bidang kelestarian lingkungan dan pemberdayaan masyarakat.
Analisis Manajemen Risiko Pada Proyek Pembangunan Perumahan Dukuh Permai di Kabupaten Karangasem, Bali: Identifikasi, Alokasi, dan Strategi Mitigasi I Gusti Ngurah Putu Dharmayasa; I Komang Agus Ariana; I Komang Mardiana; Putu Ariawan; Made Yeni Anggreni; I Gde Eka Dharsika
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 1 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1301.009-18

Abstract

Pertumbuhan penduduk di Kabupaten Karangasem, Bali, mendorong perkembangan proyek perumahan, di mana salah satunya adalah Perumahan Dukuh Permai. Penelitian ini menganalisis manajemen risiko proyek tersebut dengan fokus pada identifikasi, alokasi, dan strategi mitigasi risiko. Data dikumpulkan melalui observasi lapangan, wawancara mendalam dengan kontraktor, dan kuesioner terhadap 30 responden, serta studi dokumen dan regulasi terkait. Hasil penelitian mengidentifikasi 69 risiko yang diklasifikasikan ke dalam enam kategori: alam, desain, finansial/ekonomi, politik/hukum, konstruksi, dan lingkungan. Sebanyak 88,9% risiko tergolong sedang dan 10,1% berisiko kecil. Alokasi risiko dibagi secara proporsional: owner menanggung risiko eksternal, kontraktor mengelola risiko operasional, dan risiko finansial menjadi tanggung jawab bersama. Strategi mitigasi meliputi penerapan K3, APD, perjanjian dengan supplier, serta komunikasi intensif antar pihak. Penelitian ini menyimpulkan bahwa pendekatan manajemen risiko yang terstruktur dan kolaboratif essential untuk meminimalkan dampak negatif dan mendukung keberhasilan proyek.
Evaluasi Kinerja dan Persepsi Masyarakat terhadap Efektivitas Sistem Drainase di Kawasan Rawan Banjir Jalan Plawa, Kelurahan Baler Bale Agung, Jembrana, Bali I Gusti Ngurah Putu Dharmayasa; Anjasmara Essa Sujana; Irma Suryanti; I Ketut Nuraga
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 2 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1302.0144-154

Abstract

Penelitian ini mengkaji persepsi masyarakat terhadap efektivitas sistem drainase di kawasan rawan banjir Jalan Plawa, Kelurahan Baler Bale Agung, Kabupaten Jembrana, Bali. Banjir dan genangan yang terjadi secara berulang tidak hanya berdampak pada kerusakan infrastruktur, tetapi juga menimbulkan dampak sosial dan ekonomi. Penelitian menggunakan pendekatan campuran (mixed methods) dengan dominasi kuantitatif yang didukung oleh data kualitatif. Pengumpulan data dilakukan melalui kuesioner terhadap 40 responden, wawancara mendalam, dan observasi lapangan. Hasil penelitian menunjukkan bahwa tingkat pemahaman masyarakat terhadap sistem drainase sangat tinggi (93,75% kategori "Sangat Paham"), namun tidak diikuti oleh tingkat kepedulian yang memadai (67,00% kategori "Jarang"). Uji korelasi Spearman menghasilkan nilai rs = -0,438 yang menunjukkan hubungan negatif dengan kekuatan cukup, mengindikasikan adanya kesenjangan antara pengetahuan dan tindakan (knowledge-action gap). Penilaian kinerja fisik drainase menunjukkan variasi antarsegment dengan segmen hilir memiliki kondisi terburuk (nilai total 35) yang memerlukan tindakan rehabilitatif. Faktor-faktor yang memengaruhi persepsi meliputi pengalaman langsung terhadap banjir, anggapan bahwa pemeliharaan drainase adalah tanggung jawab pemerintah, keterbatasan waktu masyarakat, serta lemahnya penggerak partisipasi dari tokoh masyarakat. Penelitian ini merekomendasikan pendekatan terintegrasi antara perbaikan infrastruktur fisik dan penguatan kelembagaan partisipatif berbasis komunitas.
Assessment of soil fraction, carbon storage capacity, and rate of carbon uptake from three coastal ecosystems: Mangroves, seagrass, and mudflats in Benoa Bay, Indonesia I GUSTI NGURAH PUTU DHARMAYASA; I PUTU SUGIANA; PUTU YUDI ADITYA PUTRI; KWANRUETAI BOONYASANA
Biodiversitas Journal of Biological Diversity Vol. 25 No. 6 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250623

Abstract

Abstract. Dharmayasa IGNP, Sugiana IP, Putri PYA, Boonyasana K. 2024. Assessment of soil fraction, carbon storage capacity, and rate of carbon uptake from three coastal ecosystems: Mangroves, seagrass, and mudflats in Benoa Bay, Indonesia. Biodiversitas 25: 2541-2549. Coastal habitats, known as blue carbon ecosystems, are highly productive at absorbing and storing carbon. Most carbon is stored as soil organic carbon, and its quantity can vary depending on various factors, including the presence of plants such as mangroves and seagrass, and environmental conditions, including soil fraction. This study quantifies soil carbon stored and its burial rate in three primary coastal ecosystems: mangroves, seagrasses, and mudflats. The ashing method (loss on ignition) is used to quantify carbon content, which is then converted into soil carbon storage and burial rate. Gravimetry and the settling time method are used to determine the soil fraction. We also measure the soil and water properties directly during the sampling time. This study revealed significant soil carbon stock and burial rate variations across different ecosystems. The order of ecosystems with the most extensive carbon stock and burial rate is as follows: mangrove (69-145 tC ha-1 and 1.6-3.4 tCha-1yr-1)>seagrass (63-75 tC ha-1 and 1.5-1.7 tCha-1yr-1)>mudflat (49-61 tC ha-1 and 1.2-1.4 tCha-1yr-1). Mangroves with natural growth have a higher carbon storage capacity than rehabilitated ones. Soil carbon content is highly correlated with the soil and water pH, Dissolved Oxygen (DO), water content, bulk density, and soil type. The findings demonstrate that carbon absorption capability varies among coastal habitats, with vegetated environments exhibiting higher carbon storage levels. Converting land, particularly mudflats, into seagrass beds or mangrove forests may maximize the efficiency of coastal ecosystems as carbon sinks. However, it should be noted that these findings are only estimates, and the precise measurement numbers may differ due to seasonal circumstances or reclamation activities, which might cause oscillations in sedimentation rates. These variations, in turn, could affect the levels of carbon stored and the speed at which it is buried.
Mangrove species distribution across soil texture gradients in Benoa Bay and Nusa Lembongan, Bali Province, Indonesia I GUSTI NGURAH PUTU DHARMAYASA; I PUTU SUGIANA; PONGPIPAT ANANTANASAKUL
Biodiversitas Journal of Biological Diversity Vol. 26 No. 6 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260633

Abstract

Abstract. Dharmayasa IGNP, Sugiana IP, Anantanasakul P. 2025. Mangrove species distribution across soil texture gradients in Benoa Bay and Nusa Lembongan, Bali Province, Indonesia. Biodiversitas 26: 2908-2915. This study unveils the crucial role of mangrove ecosystems in enhancing coastal resilience and mitigating climate change through carbon sequestration and shoreline stabilization. This study identifies strong relationships between soil particle composition (sand, silt, clay, and gravel) and the distribution of mangrove species across five genera-dominated zones (Rhizophora, Sonneratia, Avicennia, Bruguiera, and Ceriops) in Bali, Indonesia. By establishing 20 plots at two sites, Benoa Bay and Nusa Lembongan, and quantitatively measuring stand structure (tree and sapling density, diameter, canopy cover, and Mangrove Health Index (MHI) and soil parameters (texture, pH, water content, bulk density, and total organic matter), this study revealed that Ceriops tagal dominates soils with 35-45% silt and clay content; Bruguiera gymnorrhiza thrives in sandy soils exceeding 60% sand; and Sonneratia alba is associated with substrates containing over 20% gravel. Principal component analysis and Pearson correlation reveal significant negative effects of gravel on canopy cover (r: -0.73, p<0.01) and MHI (r: -0.74, p<0.01), and a positive correlation between sand content and sapling density (r: 0.56, p<0.01). These findings not only underscore the critical role of soil texture in mangrove distribution and forest health but also emphasize the need to consider edaphic conditions in restoration and conservation strategies. This knowledge is vital for enhancing ecosystem sustainability and biodiversity.
EVALUASI TEKNIS DAN EFISIENSI MATERIAL PONDASI DANGKAL DAN DALAM PADA TANAH LEMPUNG LUNAK DI KAWASAN PARIWISATA BALI I Gusti Ngurah Putu Dharmayasa; M. Alif Dzikri Mustajib; I Gede Fery Surya Tapa; Decky Cipta Indrashwara
Jurnal Teknik Gradien Vol 18 No 01 (2026): JURNAL TEKNIK GRADIEN
Publisher : Fakultas Sains dan Teknologi Universitas Ngurah Rai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47329/teknikgradien.v18i01.1764

Abstract

Pembangunan villa di kawasan Pangkung Tibah, Tabanan, Bali menghadapi tantangan geoteknik berupa tanah lempung lunak bekas sawah dengan daya dukung rendah dan kompresibilitas tinggi. Penelitian ini bertujuan membandingkan efisiensi teknis pondasi dangkal (telapak) dan pondasi dalam (bored pile) pada kondisi tersebut. Gap penelitian terletak pada belum adanya studi yang mengintegrasikan analisis beban aktual dari pemodelan struktural dengan efisiensi material beton untuk lokasi dengan tanah keras pada kedalaman dangkal (5 m). Data sekunder berupa beban aksial (16.236 kg) dan momen (4.793,5 kg·m) dari dokumen perencana serta uji sondir (CPT) dianalisis menggunakan metode Meyerhoff untuk pondasi dangkal dan pondasi bored pile. Hasil menunjukkan seluruh variasi pondasi dangkal (1,6–2,0 m) tidak aman karena qall (4,96–5,29 ton/m²) < qmax (7,65–13,36 ton/m²) serta e > B/6 pada B < 1,8 m. Sebaliknya, bored pile diameter 20–35 cm dengan panjang 5 m aman secara teknis (Pall 18,32–52,00 ton > 16,236 ton). Meskipun volume beton bored pile 24,19–32,94% lebih besar akibat pile cap, keamanan teknis menjadi prioritas. Kesimpulannya, bored pile direkomendasikan untuk menjamin stabilitas struktur pada lahan bekas sawah dengan tanah keras pada kedalaman 5 m.
Evaluation of Operation and Maintenance Performance for The Community-based Drainage System in Pengambengan Bali I Gusti Ngurah Putu Dharmayasa; Putu Indah Dianti Putri; Andry Dwi Wibowo; Irma Suryanti
Jurnal Ilmiah Dinamika Rekayasa Vol. 22 No. 2 (2026): Jurnal Ilmiah Dinamika Rekayasa - Juli
Publisher : Engineering Faculty, UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jidr.2025.21.2.104

Abstract

Recurring inundation in the Jalan Raya Pengambengan area, Bali, indicates a decline in the drainage infrastructure's Level of Service (LoS), leading to road structure degradation. This functional failure is primarily driven by non-structural factors, specifically deficiencies in Operation and Maintenance (O&M) management due to high sedimentation rates and waste accumulation. This study aims to evaluate drainage management effectiveness using a quantitative approach with a correlational design. Data were collected through structured questionnaires from 30 respondents residing along the primary channel, supported by field observations of the channel's physical condition. Descriptive statistical analysis revealed a sharp disparity: the community possesses a very high understanding of infrastructure function (index 81.66%), yet actual maintenance participation remains low (index 59.83%). The Spearman Rank correlation test confirmed no significant linear relationship (rs​=−0,079) between technical literacy and maintenance behavior. These findings demonstrate a knowledge-behavior gap phenomenon, where the degradation of hydraulic capacity is caused by the diffusion of responsibility regarding public assets. The study concludes that restoring drainage function requires a strategic transformation from mere physical intervention to strengthened institutionalized participatory asset management to sustainably mitigate flood risks.
Comparative analysis of the RAP to RAB for the brick wall and floor ceramic works in the construction of the special official residence for the main officials of the Tabanan Police I Gede Fery Surya Tapa; I Made Bagus Adi Praditya; I Gusti Ngurah Putu Dharmayasa; I Ketut Nuraga
Priviet Social Sciences Journal Vol. 6 No. 10 (2026): October 2026
Publisher : Privietlab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55942/pssj.v6i10.1874

Abstract

This study aimed to analyse the comparison between the Implementation Budget Plan or Rencana Anggaran Pelaksanaan (RAP) and the Cost Budget Plan or Rencana Anggaran Biaya (RAB) on the work of brick walls and floor tiles in the construction of the Special Official House of the Main Official of the Tabanan Police. The background of this study is based on the importance of controlling construction project costs so that the implementation of work is in accordance with the plan and achieves budget efficiency. The research method used was a quantitative descriptive method with data collection through field observations, interviews, and documentation in the form of RAB, shop drawings, and as-built drawings. The analysis was carried out by calculating the actual work volume, material requirements, and comparing the RAP costs to the RAB. The results of the study showed that the comparison of the RAP costs to the RAB on the installation of brick walls showed a difference, where the costs calculated in the RAP of Rp 83,133,400 tended to better reflect the actual conditions in the field compared to the RAB of Rp 85,286,651 with a difference of Rp 2.153.251 and a percentage of 97.48%. In the installation of floor tiles, there was also a significant deviation, where the cost calculated in the RAP of Rp. 107,209,600 tended to be greater than the RAB value of Rp. 79,108,732 with a difference of -Rp.28.100.868 and a percentage of -1112%. This difference has an impact on cost discrepancies, so that the RAB does not fully reflect the real cost needs in the field. Thus, a comparative analysis of the RAP and RAB is important as a basis for evaluating project costs so that work implementation is more effective, efficient, and according to the planned quality.
Identifying Key Factors Causing Flooding Using Machine Learning Adie Wahyudi Oktavia Gama; Monalisa Dennatan; I Gusti Ngurah Putu Dharmayasa; Me Me Maw; I Putu Sugiana; Irma Suryanti
Journal of Applied Data Sciences Vol 6, No 1: JANUARY 2025
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v6i1.463

Abstract

The impact of flooding extends beyond physical and infrastructural damage, affecting social, economic, and environmental dimensions. This study aims to identify the key factors influencing flooding by developing a decision tree model. The research method applies the C4.5 algorithm to build a decision tree model using flood factors such as rainfall, soil type, elevation, land use, and distance from rivers. The model is then applied to 57 past flood data events to determine key contributors to flooding in Denpasar City, Bali, Indonesia. The analysis showed that land elevation is the most influential factor, with areas below 28 meters above sea level having a 71% likelihood of being flood vulnerability. Additionally, the model reveals unknown patterns contributing to flood vulnerability among the factors considered. These insights give a deeper understanding of how these factors combine to affect flood vulnerability. The model's effectiveness was evaluated using a confusion matrix, resulting in an accuracy rate of 90%, a precision rate of 100%, a sensitivity rate of 90%, a specificity rate of 100%, and a F1 Score rate of 94%, demonstrating its strong predictive power in identifying areas at risk of flood vulnerability. Although this study is limited by the availability of data, the focus on Denpasar City, and the potential omission of other relevant attributes, it advances flood risk assessment by applying machine learning to provide practical insights that could enhance flood management strategies, with potential applications to other urban areas facing similar risks.
Co-Authors Adie Wahyudi Oktavia Gama Agus Ariana, I Komang Anak Agung Sagung Istri Ratu Andini, Ni Putu Bintang Andry Dwi Wibowo Anggreni, Ni Luh Jaya Anggreni, Ni Putu Richa Anjasmara Essa Sujana Ariantini, Ni Luh Made Pande Atmaja, Gede Arya Kurnia Atmaja, I Gusti Ngurah Nyoman Tri Werdi Avani, Ida Ayu Wayan Zeiya Emilia Budiarnaya, Putu Cathleen Ariella Simatupang Cathleen Ariella Simatupang Decky Cipta Indrashwara Dennatan, Monalisa Dewa Ayu Nyoman Ardi Utami Doni Marisi Sinaga Doni Marisi Sinaga Fany Hasbhi Noerangga Graha, I Made Satya Haditama, I Gusti Ngurah Hesa Respati I Gde Eka Dharsika I Gede Fery Surya Tapa I Gusti Agung Ananda Putra I Gusti Kade Supartha I Gusti Lanang Bagus Eratodi I Ketut Nuraga I Komang Agus Ariana I Komang Mardiana I Made Bagus Adi Praditya I Made Yuliana Mahendra I Nengah Riana I Nengah Riana I Nengah Riana I Nengah Sidiana I Nyoman Indra Kumara I Putu Dharmawan Pradhana I Putu Sugiana I Wayan Redana I Wayan Sukadana Irma Suryanti Irma Suryanti Ketut Nuraga Komang Agus Ariana KWANRUETAI BOONYASANA M. Alif Dzikri Mustajib Made Anom Dwiadnya Adipta Made Yeni Anggreni Maw, Me Me Me Me Maw Monalisa Dennatan Ni Luh Jaya Anggreni Ni Luh Putu Ika Candrawengi Ni Putu Asri Nilayanti Nuraga, Ketut Nyoman Bayu Kurniawan Bendesa Piantawa, Komang PONGPIPAT ANANTANASAKUL Pradewi, Ni Putu Rika Putri, Ida Ayu Made Intan Putu Ariawan Putu Ariawan Putu Ariawan Putu Indah Dianti Putri PUTU YUDI ADITYA PUTRI Sihaloho, Andreas Pratama Sugiana, I Putu Sugianitri, Ni Made Fibri Sulistyawati, Ida Ayu Putu Eka Tjok Gde Suwarsa Putra Trianjani, Sagung Putri Winda Maharani, Ni Putu Ratih