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Public Perceptions on Land Use Change and Flood Incidence in the Kendal Watershed Area Benardi, Andi Irwan; Rahman, Atta-Ur; Liesnoor Setyowati, Dewi; Gustiyansyah Selebes, Adrian; Gerar Yametis, Joshua Vincent; Wijayanto, Bayu; Adi Wibowo, Novika; Zulfi Al'Ghani , Muhammad
JURNAL GEOGRAFI Vol. 18 No. 1 (2026): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v18i1.68020

Abstract

Uncontrolled land-use changes driven by rapid population growth and expanding residential development have significantly heightened flood risk in the Kendal Watershed, Kendal District. The conversion of agricultural and open land into built-up areas has altered hydrological processes, reducing water infiltration capacity and increasing surface runoff. This study aims to (1) identify spatial and temporal land-use changes from 2017 to 2025, (2) analyze public perceptions regarding land conversion and flooding, and (3) assess the resulting social and environmental impacts within the watershed area. A quantitative descriptive approach was employed by integrating Geographic Information System (GIS)-based analysis of Sentinel-2A satellite imagery with primary data collected through Likert-scale questionnaires administered to 96 respondents residing in flood-prone areas. The results indicate a substantial decline in rice field areas by 44.19 hectares, accompanied by a notable increase in residential land of 36.12 hectares over the study period. Community perceptions reveal that these land-use changes have contributed to increased flood frequency, greater flood intensity, and longer inundation duration. The observed social impacts include disruptions to daily activities, reduced access to clean water, economic losses, and a higher incidence of waterborne and skin-related diseases. Environmental impacts are reflected in declining sanitation conditions, increased waste accumulation, river sedimentation, and persistent water pollution. These findings underscore the urgent need for stricter land-use regulation, restoration of green and infiltration areas, and adaptive, sustainable spatial planning to reduce flood risk and enhance community resilience in the Kendal Watershed
Optimalisasi Pengelolaan Ruang Terbuka Hijau Dalam Meningkatkan Keberlanjutan Lingkungan Di Sekolah Pascasarjana Universitas Negeri Semarang Benardi, Andi Irwan; Uddin, Hafiz Rafi; Dwi Utomo Aji, Muhammad; Yusuf Anugrah, Muhammad; Amri, Yassirli
Indonesian Journal of Conservation Vol. 14 No. 02 (2025): Desember 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijc.v14i02.32906

Abstract

Ruang terbuka hijau (RTH) memiliki peran strategis dalam mendukung keberlanjutan lingkungan, kesehatan, dan kualitas hidup masyarakat, termasuk dalam konteks pendidikan tinggi. Artikel ini membahas optimalisasi pengelolaan RTH di Universitas Negeri Semarang (UNNES) dengan fokus pada manfaat ekologis, sosial, dan akademik, sekaligus mengidentifikasi tantangan dan solusi dalam pemanfaatannya. Metode penelitian yang digunakan mencakup tinjauan pustaka dan analisis data lapangan melalui survei dan wawancara dengan mahasiswa serta staf kampus. Hasil penelitian menunjukkan bahwa RTH di UNNES terdiri dari berbagai area hijau, seperti taman, pelataran gedung, dan lapangan, yang berfungsi tidak hanya sebagai ruang rekreasi, tetapi juga sebagai sarana pembelajaran, penelitian, serta interaksi sosial. RTH memberikan manfaat ekologis berupa pengurangan polusi udara, perbaikan kualitas tanah dan air, serta penurunan suhu mikro lingkungan. Dari sisi sosial, RTH mendukung kesehatan mental, meningkatkan interaksi sosial, dan memperkuat solidaritas antar mahasiswa. Selain itu, RTH juga dapat berfungsi sebagai laboratorium alam yang mendukung kegiatan akademik. Namun, pengelolaan RTH menghadapi tantangan berupa keterbatasan anggaran, rendahnya kesadaran mahasiswa, dan masalah pemeliharaan. Beberapa strategi yang direkomendasikan antara lain peningkatan anggaran, pengembangan program edukasi lingkungan, pemanfaatan teknologi digital untuk pemantauan, serta keterlibatan partisipatif mahasiswa dan staf dalam pemeliharaan. Artikel ini menyimpulkan bahwa pengelolaan RTH yang terintegrasi dan berkelanjutan sangat penting untuk mendukung visi UNNES sebagai kampus konservasi. Temuan ini juga diharapkan dapat menjadi referensi bagi perguruan tinggi lain dalam upaya meningkatkan kualitas RTH sebagai bagian dari pengembangan kampus berkelanjutan.
KEARIFAN LOKAL MASYARAKAT DESA KRINJING DALAM UPAYA MITIGASI BENCANA ERUPSI GUNUNG MERAPI Adjie, Satria; Benardi, Andi Irwan
Indonesian Journal of Environment and Disaster Vol. 5 No. 1 (2026): Articles in Press
Publisher : Disaster Research Center, Universitas Sebelas Maret, Surakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijed.v5i1.2927

Abstract

Indonesian society is certainly not far from local wisdom. This is especially true for communities living on the slopes of Volcano Merapi. This study was conducted in Krinjing Village, Dukun Subdistrict, Magelang Regency. The purpose of this study was to identify forms of local wisdom and their significance as a means of mitigating disasters caused by Volcano Merapi, and to obtain an overview of Krinjing Village, which is located in a disaster-prone area. This study used a descriptive qualitative approach as well as a spatial and environmental approach with data collection techniques of observation, interviews, and documentation. Local wisdom as mitigation includes Saparan, philosophy, slametan, and figures such as Wo Katorejo. Local wisdom as culture includes Wayangan, Jathilan, and Topeng Ireng. Community adaptation after the 2010 eruption includes the evacuation of sister villages to Deyangan Village, economic sector recovery, and the implementation of Standard Operating Procedures for preparedness. Local wisdom in Krinjing Village plays an important role in volcanic eruption mitigation by building solidarity and preparedness.
Spatiotemporal Analysis Of Flood Inundation Using MNDWI At Rawa Pening 2019-2025 Amalia, Sufi; Benardi, Andi Irwan
Jambura Geoscience Review Vol 8, No 1 (2026): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v8i1.35670

Abstract

Flood inundation around Rawa Pening Lake has intensified in recent years, yet long-term patterns of inundation extent and persistence remain poorly quantified. This study aims to analyse the interannual and spatial dynamics of flood inundation in the Rawa Pening lake-basin system during 2019–2025 and to identify riparian zones that experience recurrent flooding. Sentinel-2 Level-2A imagery was processed within a 3 km riparian buffer to compute the Modified Normalized Difference Water Index (MNDWI), apply a histogram- and visually based threshold for water extraction, and generate annual maximum inundation and seasonal wet-season inundation-frequency metrics. The classification achieved high overall accuracy (93.1%), supporting the reliability of the derived inundation products. The multiyear results reveal strong year-to-year variability in maximum inundation and show that floodwater consistently concentrates in low-lying southern and southeastern riparian sectors, particularly within Banyubiru and Tuntang subdistricts, while western and northern sectors experience smaller and less persistent flooding. The combination of maximum inundation extent and inundation-frequency maps provides complementary insight into extreme events and recurrent flood exposure, enabling a clearer distinction between episodic and chronic flood impacts on riparian agriculture and settlements. These findings demonstrate the value of multitemporal MNDWI analysis and an ecologically defined buffer zone for monitoring lake-basin flooding and offer a spatial basis for prioritizing riparian conservation, land-use regulation, and flood-risk reduction around Rawa Pening.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Bashith Adi Wibowo, Novika Adjie, Satria Al Ghani, Muhammad Zulfi Amalia, Sufi Amalia, Venny Amalia, Venny Amri, Yassirli Ananto Aji, Ananto Andresheva, Satria Anindhyta, Chyta Apik Budi Santoso Ardianto Rose Ashabul Kahfi Ashabul Kahfi, Ashabul Azzahra, Muzakia Baharsyah, Moch Nasrul Baharsyah, Moh. Nasrul Baharsyah, Moh. Nasrul Bayu Wijayanto Bayu Wijayanto Budianto, Satrio Bagus Budiyono Budiyono Daniel Happy Putra Dennis Rachmad Putranto Dewi Liesnoor Setyowati Dwi Utomo Aji, Muhammad Erni Suharini Eva Banowati Fakhirah, Faustine Gilda Gerar Yametis, Joshua Vincent Gustiyansyah Selebes, Adrian Halmahera, Mega Halmahera, Mega Hariyanto Hariyanto Imanuel Adi Papa Yohanes, Kristi Dese Imanuel Adi Papa Yohanes, Kristi Dese Jaka Putra Rahmajati Joshua Vincent Gerar Yametis Juhadi Juhadi Khoirul Taufiqi Kiswanto, Andre Kiswanto, Andre Kurniawan, Muchammad Akbar Laksono Trisnantoro Lestari, Kukun Puji M. Nurropik M. Nurropik, M. Nurropik Murtafiah, Murtafiah Novika Adi Wibowo Nurrochmah, Arum Indah Parida Angriani Prameswari, Andina Ahya Purnama, Anggi Septiya Purnama, Anggi Septiya Purwaningsih, Widya Purwaningsih, Widya Putranto, Dennis Rachmad Rahima, Hawa Nur Rahima, Hawa Nur Rahma Hayati Rahmajati , Jaka Putra Rahman, Atta-Ur Rani, Sri Ridwan, Mutmainnah Farida Saptono Putro Saptono Putro Sari Dewi Satya Budi Nugraha Sriyanto Sriyanto Sriyono Sriyono Sriyono Sriyono Suhendra, M. Luthfi Taufiqi, Khoirul Thriwaty Arsal Tjaturahono Budi Sanjoto Uddin, Hafiz Rafi Utomo Aji, Muhammad Dwi Wahid Akhsin Budi Nur Sidiq, Wahid Akhsin Budi Nur Wibawanti, Diah Widyastiti, Ririh Winarni, Erin Dian Wulandari, Fajar Yametis, Joshua Vincent Gerar Yudanti Anika Romadhoni Yundari, Yundari Yusuf Anugrah, Muhammad Zakiyah, Neza Zulfa, Alfiatus Zulfa, Alfiatus Zulfi Al'Ghani , Muhammad