ANALISIS FUNGSI LANSKAP PADA LAHAN PASCATAMBANG TIMAH DI BELITUNG

Abstract

Lahan pascatambang timah di Pulau Belitung mengalami degradasi yang ditandai oleh penutupan vegetasi yang rendah, dominansi bare soil (pasir), serta gangguan fungsi ekologis lanskap. Penelitian ini bertujuan untuk menganalisis fungsi lanskap pada lahan belum direvegetasi dan revegetasi pascatambang timah di Belitung. Metode penelitian meliputi penentuan lokasi penelitian, pengukuran mikroklimat, pengukuran karakteristik tanah, serta analisis fungsi lanskap menggunakan 11 parameter Soil Surface Assessment (SSA). Hasil penelitian menunjukkan bahwa fungsi lanskap pada kedua tipe lahan masih tergolong rendah. Indeks stabilitas lahan tidak menunjukkan perbedaan yang signifikan antara lahan belum direvegetasi dan revegetasi. Sementara itu, indeks infiltrasi air menunjukkan nilai tertinggi sekitar 63% pada lahan revegetasi. Penutupan vegetasi dan serasah yang rendah menyebabkan pemulihan siklus nutrisi belum optimal. Oleh karena itu, fungsi lanskap pada lahan pascatambang timah masih memerlukan pengelolaan revegetasi lanjutan untuk mencapai pemulihan yang lebih menyeluruh.

Post-mining tin land on Belitung Island had undergone degradation, characterized by low vegetation cover, bare soil (sand) dominance, and disruption of the landscape's ecological functions. This study aims to analyse the landscape functions of unrevegetated and revegetated post-mining tin land in Belitung. The research methods included determining the research location, measuring the microclimate, measuring soil characteristics, and analysing landscape function using 11 Soil Surface Assessment (SSA) parameters. The results showed that landscape function on both types of land was still relatively low. The land stability index did not show a significant difference between revegetated and non-revegetated land. Meanwhile, the water infiltration index showed the highest value, approximately 63%, on revegetated land. Low vegetation cover and litter caused suboptimal recovery of the nutrient cycle. Therefore, the landscape function on post-tin mining land still requires further revegetation management to achieve more comprehensive recovery.