Analysis of Ammonia, Phosphate and Nitrate Levels of Rovers in the Senepis Peat Forest Area, Riau, Indonesia
Keywords:
water quality, ammonia, phosphate, nitrate, peat forest, Senepis, eutrophicationAbstract
The Senepis Peat Forest Area in Riau is a tropical ecosystem that plays a crucial role in carbon storage, hydrological regulation, and biodiversity. However, pressures on river water quality in this area have increased due to land use changes. This study aims to analyze the concentrations of key nutrients, including ammonia (NH₃-N), phosphate (PO₄³⁻), and nitrate (NO₃⁻), at various river and water points in the Senepis area during 2017 and 2018. Sampling was conducted at 12 locations, including upstream and downstream points of four main rivers (Senepis, Sinaboi, Nyamuk, and Teluk Dalam), a logging block well, a kampong canal, and rainwater. Laboratory analysis was performed using spectrophotometric methods in accordance with SNI standards for each parameter. The results show that in 2017, phosphate concentrations ranged from 0.301 to 1.263 mg/L, ammonia from 0.030 to 0.534 mg/L, and nitrate from 0.342 to 0.392 mg/L. In 2018, phosphate concentrations decreased (0.0053–0.3292 mg/L), while ammonia (0.0750–0.3468 mg/L) and nitrate (0.1394–0.9668 mg/L) levels increased significantly, particularly in locations close to anthropogenic activities. These findings indicate spatial and temporal dynamics in nutrient levels, which could potentially trigger eutrophication and degrade water ecosystem quality. This data is essential as a basis for water quality management and the sustainable protection of tropical peatland ecosystems.
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Copyright (c) 2025 Sefni Hendris, Irwan Effendi, Bintal Amin, Rizki Oktavian, Dodi Sukma, Al Muzafri (Author)
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