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All Journal Journal of Degraded and Mining Lands Management Jurnal Teknologi Lingkungan
Butar butar, Erni Saurmalinda
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Environmental Science

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Fitoremediasi Logam Berat Sistem Lahan Basah Terapung Menggunakan Tanaman Akar Wangi (Chryzophogon zizanioides (L.) Roberty) sebagai Hiperakumulator Priantoro, Ekaputra Agung; Suryaatmana, Pujawati; Sumiarsa, Dadan; Widyarani; Butar butar, Erni Saurmalinda; Sembiring, Tarzan
Jurnal Teknologi Lingkungan Vol. 26 No. 1 (2025)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2025.5052

Abstract

ABSTRACT Pollution in the water environment is becoming increasingly massive. Rivers are polluted by industrial and household waste, which results in natural systems no longer being able to process pollutant materials that enter water bodies, so technological breakthroughs are needed that can come into direct contact with the surface of the water and be used in rivers and lakes. Phytoremediation is a waste processing method using plants grown in polluted environments. Floating wetland systems (constructed floating wetlands) provide a practical solution for dealing with pollution in the aquatic environment because they are directly in contact with polluted water bodies. Also, selecting plant species for floating wetlands determines the system's success in processing waste. The vetiver plant (Chryzopogon zizanioides (L.) Roberty) is a heavy metal hyperaccumulator plant that can grow well in aquatic and terrestrial environments. Still, it needs to be considered because not all cultivars can grow well in standing water, so they are unsuitable for processing liquid waste. Vetiver plants have several advantages compared to other aquatic plant species for floating wetland applications, such as being non-invasive and having no rhizomes, a root system extending downwards, and a massive root system to be used as a biofilter. Floating wetland systems are not widely used in natural systems or for final waste processing. The research is a literary study of floating wetlands, which has been implemented in several countries. The benefit of this research is to examine the ability of the vetiver plant as a hyperaccumulator plant from several studies that have been carried out so that it can be applied in natural environments. ABSTRAK Pencemaran di lingkungan perairan semakin masif terjadi. Sungai tercemar oleh limbah buangan industri dan rumah tangga, yang mengakibatkan sistem alami tidak mampu lagi mengolah bahan pencemar yang masuk ke dalam badan air sehingga diperlukan terobosan teknologi yang dapat langsung bersentuhan di permukaan air dan dipergunakan di sungai maupun danau. Fitoremediasi merupakan metode pengolahan limbah dengan menggunakan tanaman yang ditumbuhkan pada lingkungan  tercemar. Sistem lahan basah terapung (constructed floating wetlands) memberikan solusi praktis untuk mengatasi pencemaran di lingkungan perairan, karena langsung bersentuhan dengan badan air yang tercemar. Selain itu pemilihan spesies tanaman yang akan digunakan dalam lahan basah terapung menentukan keberhasilan dari sistem untuk menolah limbah. Tanaman vetiver (Chryzopogon zizanioides (L) Roberty) merupakan tanaman hiperakumulator logam berat dapat tumbuh baik dalam lingkungan perairan dan daratan, namun perlu diperhatikan karena tidak semua kultivar mampu tumbuh dengan baik pada genangan air, sehingga tidak cocok untuk pengolahan limbah cair. Tanaman vetiver memiliki beberapa keunggulan dibandingkan dengan spesies tanaman air lainnya untuk penerapan lahan basah terapung, seperti sifatnya yang non-invasif dan tidak memiliki rimpang, memiliki sistem perakaran yang menjulur ke bawah, sistem perakarannya yang masif, sehingga dapat digunakan sebagai biofilter. Sistem Lahan basah terapung belum banyak digunakan, baik dalam sistem alami maupun bertujuan pengolahan limbah akhir. Penelitian ini merupakan studi literatur mengenai lahan basah terapung yang sudah diterapkan di beberapa negara. Manfaat dari penelitian ini untuk menelaah kemampuan tanaman vetiver sebagai tanaman hiperakumulator dari beberapa penelitian yang sudah dilakukan untuk selanjutnya bisa diterapkan di lingkungan alami.
Spatial modeling of soil erosion in the Teesta River Basin in Bangladesh using RUSLE and remote sensing data in Google Earth Engine Butar Butar, Erni Saurmalinda; Thepvongsa, Jedtavong
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9473

Abstract

Soil erosion posed a significant environmental challenge in river basin environments, threatening agricultural productivity, compromising water quality, and eroding ecosystem integrity. The Teesta River Basin, an ecologically sensitive and economically important region, is increasingly affected by erosion driven by natural and anthropogenic factors. This study employed the Revised Universal Soil Loss Equation (RUSLE) alongside Google Earth Engine (GEE) and Geographic Information System (GIS) tools to evaluate the spatial distribution of soil erosion. The model incorporates rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), cover management (C), and support practices (P), processed with high-resolution remote sensing datasets. Results indicate strong spatial variability, with average soil loss estimated at 11.25 t/ha/yr. About 44% of the basin experiences very low erosion, 21% low, 6% moderate, 10% severe, and 7% very severe erosion. Agricultural land, the dominant cover type (391,796.9 ha), shows the highest average soil loss (112 t/ha/yr), largely due to continuous tillage, residue removal, and unsustainable practices. Nearly 59% of cropland faces high erosion risk compared to other land covers. Prioritization of erosion-prone areas reveals that 7% of the basin falls into high priority (very severe), 10% medium priority (severe), and over 70% low priority (low and very low). These findings offer crucial guidance for implementing targeted soil conservation measures and informing sustainable land use planning. The study highlights the effectiveness of integrating RUSLE with GEE for large-scale erosion assessment and watershed management.
Co-Authors Dadan Sumiarsa Priantoro, Ekaputra Agung Sembiring, Tarzan Suryaatmana, Pujawati Thepvongsa, Jedtavong Widyarani