Dinamika Spasial dan Temporal Tutupan Eceng Gondok (Eichhornia crassipes) di Rawa Pening Periode 2019-2025

Nabila Amalia Putri, Dr.rer.nat. Riza Yuliratno Setiawan, S.Kel., M.Sc.

2026 | Skripsi | MANAJ. SUMBER DAYA PERIKANAN

Pertumbuhan eceng gondok yang terus meningkat menyebabkan penutupan permukaan Rawa Pening. Kondisi ini dikhawatirkan dapat mengakibatkan penurunan fungsi danau. Penelitian ini bertujuan untuk mengetahui perubahan luas eceng gondok di Rawa Pening periode 2019-2025 dengan menerapkan metode analisis time series bulanan pada citra satelit Sentinel-2. Penelitian ini juga mengukur kedalaman Rawa Pening menggunakan metode pemeruman. Hasil penelitian menunjukkan fluktuasi luas eceng gondok dipengaruhi oleh faktor antropogenik dan faktor alam. Peta batimetri menunjukkan terjadi pendangkalan di Rawa Pening yang diduga disebabkan sedimentasi akibat akumulasi eceng gondok di dasar danau. Strategi pengelolaan eceng gondok yang tepat diperlukan supaya dapat mempertahankan fungsi ekologi, sosial, dan ekonomi Rawa Pening. 

The persistent growth of water hyacinth is resulting in the coverage of the surface of Rawa Pening. This condition is expected to lead to a reduction in the lake's functionality. This research aims to examine the alterations in the area and distribution of water hyacinth in Rawa Pening from 2019 to 2025, utilizing a monthly time series analysis method based on Sentinel-2 satellite imagery. This study additionally measures the depth of Rawa Pening through the sounding method. The results indicate that fluctuations in water hyacinth area are influenced by both anthropogenic and natural factors. The bathymetric map indicates silting in Rawa Pening, likely attributed to sedimentation resulting from the accumulation of water hyacinth at the lake's bottom. A suitable management strategy for water hyacinth is essential to preserve the ecological, social, and economic functions of Rawa Pening. 

Kata Kunci : danau, gulma air, Sentinel-2, batimetri, time series