Eko Haryono
Departemen Geografi Lingkungan, Fakultas Geografi, Universitas Gadjah Mada, Yogyakarta, Indonesia

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Analisis ekologi bentanglahan di Taman Nasional Baluran dan sekitarnya Alfi Wira Wijaya; Aulia Ika Rahmawati; Ardyani Putri Wijaya; Eni Paryani; Heni Dwi Lestari; Ikhwan Amri; Lutfi Ardianti; Syella Rachma Putri; Eko Haryono
Majalah Geografi Indonesia Vol 34, No 1 (2020): Majalah Geografi Indonesia
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mgi.51956

Abstract

Taman Nasional Baluran memiliki kondisi geomorfologi dan iklim yang khas sehingga dapat membentuk sabana. Masalah yang terjadi di Taman Nasional Baluran adalah adanya perubahan penutup lahan seiring berjalannya waktu. Kondisi tersebut diikuti dengan perubahan struktur ekologi bentanglahan. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pola penutup lahan berdasarkan aspek geomorfologi dan dinamika perubahannya di Taman Nasional Baluran. Teknik sistem informasi geografis dan penginderaan jauh digunakan untuk menginterpretasi kondisi geomorfologi dan penutup lahan. Analisis ini juga menggunakan software FRAGSTAT untuk mengkuantifikasi landscape metrics. Hasil penelitian menunjukkan bahwa setiap penutup lahan memiliki pola sesuai dengan kondisi geomorfologi. Temuan lain menunjukkan bahwa penutup lahan semak dan belukar, sabana, serta hutan lahan rendah mengalami perubahan luas secara signifikan selama tahun 1997-2019.  Fragmentasi yang terjadi pada penutup lahan di Taman Nasional Baluran, terutama sabana yang mengalami penurunan luas, turut mengancam kelestarian habitat flora dan fauna asli. Baluran National Park has unique geomorphology and climate conditions, so savannas possibly formed. The problem that happened in Baluran National Park is the land cover changes over time. The condition then followed by the change of landscape ecology structures. Therefore, this study aims to analyze land cover patterns based on geomorphological aspects and the change dynamics in Baluran National Park. Geographic information systems and remote sensing techniques were used to interpret the geomorphological and land cover condition. This analysis also used FRAGSTAT software to quantify landscape metrics. The result showed that each land cover has a pattern in accordance with geomorphological characteristics. Other findings showed that the land cover of shrubs, savannas, and lowland forests underwent significant changes during 1997-2019. The fragmentation that has occurred on Baluran National Park’s land cover, especially savannas that have decreased in area, also threatens the preservation of native flora and fauna habitats. 
Assessing the Effectiveness of CCME-WQI, NSF-WQI, OWQI, and Smith Index Water Quality Indices in Karst Areas Almira Rahma Hinanto; Margaretha Widyastuti; Eko Haryono
Jurnal Ilmu Lingkungan Vol 22, No 5 (2024): September 2024
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.22.5.1255-1262

Abstract

Water quality assessment employs various methods, including water quality indices (WQI). This study compares several WQI methods to evaluate Sumurup River and Seropan Underground River in Gunungkidul Regency. The study aims to analyze the effectiveness of CCME-WQI, NSF-WQI, OWQI, and Smith Index methods. Parameter selection was conducted using Principal Component Analysis, and the NSF-WQI method was found to best represent water quality in the study area. OWQI produced consistently poor results due to an overly idealized formula, while CCME-WQI's sensitivity to parameter number reduced its effectiveness. The Smith Index, based on New Zealand standards, yielded the lowest quality results, regardless of parameter modifications. Thus, NSF-WQI is recommended for assessing water quality in karst areas like Sumurup and Seropan Underground Rivers. This research underscores the importance of selecting appropriate WQI methods tailored to specific environmental conditions to support effective water resource management and conservation efforts.