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Toba Highland Peatlands: Exploring a Unique Ecosystem and its Environmental Significance Minasny, Budiman; Sabrina, Tengku; Akoeb, Erwin Nya
Journal of Smart Agriculture and Environmental Technology Vol. 1 No. 3 (2023): December 2023: Published, 2023-12-19
Publisher : Indonesian Soil Science Society of South Sumatra in Collaboration With Soil Science Department, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2023.1.3.66-72

Abstract

This paper provides a review of the Toba highland peatlands, focusing on their characteristics, environmental impacts and historical significance. The Toba area was influenced by a super volcano eruption around 74,000 years ago, which resulted in global cooling and the deposition of pyroclastic materials known as the Youngest Toba Tuff. The peatlands in the region formed south of the caldera and are characterised by varying extents and thicknesses. Radiocarbon dating indicates that the peat in Toba highland is approximately 20,000-30,000 years old, making it a valuable carbon stock and a record of the past. However, the drainage of peatlands has led to significant environmental degradation. It has resulted in increased CO2 emissions, reduced water supply for local farmers, loss of biodiversity, air pollution from open fire burning practices, and an increased fire hazard. Understanding the environmental impacts and historical significance of Toba highland peatlands is crucial for conservation efforts and sustainable land management practices.
Principle and prerequisites of regenerative agriculture: a review Hanifah, Vyta W.; Karolinoerita, Vicca; Cahyana, Destika; Minasny, Budiman
Journal of Smart Agriculture and Environmental Technology Vol. 3 No. 1 (2025): April 2025, Published 2025-04-07
Publisher : Indonesian Soil Science Society of South Sumatra in Collaboration With Soil Science Department, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2025.3.1.1-7

Abstract

Regenerative agriculture has recently gained popularity as a promising approach to achieving sustainable agriculture and ensuring food security. This article reviews scientific papers published between 1986 and 2024, as well as popular media, including the documentary "Kiss the Ground," released by Netflix in 2020, which successfully introduced the concept of regenerative agriculture to a broader audience. The article explores the definition, principles, and prerequisites of regenerative agriculture and examines how this concept can be adapted in Indonesia, given the challenges faced by conventional agriculture and the potential for integration with digital technology. This study used 342 papers discussing regenerative agriculture and those related to regenerative agriculture terminology using the virtual tool map, Research Rabbit, and selected 10 most papers relevancies. The review concludes that regenerative agriculture essentially encompasses or aligns with previously established concepts, including agroecology, organic farming, conservation agriculture, climate-smart agriculture, and traditional agricultural systems often associated with environmentally friendly and sustainable practices. In the Indonesian context, farming systems like Subak in Bali, integrated farming in Java, and climate-smart farming in East Nusa Tenggara can be classified as forms of regenerative agriculture. However, the prerequisites for regenerative agriculture to produce commercial-scale yields may vary across different agroecosystems, as each has its specific needs.
Identification and characterization of peat soils using a physiographic approach at semi-detailed scale: a case study in Bangka Belitung Islands Province, Indonesia Sukarman, Sukarman; Sulaeman, Yiyi; Yatno, Edi; Gani, Rachmat Abdul; Minasny, Budiman
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 2 (2024): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i2.87573

Abstract

Understanding peatland coverage and characteristics is essential for improved utilization and conservation efforts. Peatlands in Bangka Belitung Islands, Sumatra, are under threat of illegal mining activities. Creating detailed maps is challenging in Indonesia amid low accessibility, yet the physiographic approach provides an alternative strategy in peatland map provision. This research aims to update peat data in the Bangka Belitung Islands Province, create peat soil maps at a scale of 1:50,000, and estimate peat soil carbon stocks. This research started with a base map using a 1:50,000 scale, surveyed and sampled the soil on transects perpendicular to the river, analyzed the samples in the laboratory, and created a peat soil map. Compared with the existing map, the new map improves land unit attributes and peat characteristics as well as improves delineation results. Results show that peat soils cover 24,311 hectares, mostly distributed in Central Bangka and South Bangka Regencies, with depths varying between 50 to < 300 cm. Shallow peats dominate with an area of 13,668 hectares (56.22%). The estimated carbon stock contained in peat is 11.6 million tons C. The peat soils are Organosol Saprik, Organosol Hemik, and Organosol Sulfidik. The soils are acidic with low exchangeable cations and base saturation. The study highlights that deep peat soils under bushes and shrubs should be conserved for forests or reforested. Detailed spatial information on peatlands is useful for policymakers related to local peat soils planning and management.