Sources of anthropogenic fire ignitions on the peat-swamp landscape in Kalimantan, Indonesia

2019 ◽

Vol 127 (4A) ◽

pp. 53-63

Author(s):

Truong Hieu Thao ◽

Hoang Ho Dac Thai

Keyword(s):

Species Composition ◽

Site Condition ◽

Sandy Area ◽

Shrub Community ◽

Peat Swamp ◽

Study Sites

Thảm thực vật vùng đất cát nôi đồng ngập nước theo mùa tại huyện Phong Điền tỉnh Thừa Thiên Huế dựa vào cấu trúc tổ thành được phân thành 4 quần xã đó là: Quần xã cỏ ẩm nằm ven các trằm; Quần xã cây bụi trên vùng cát trũng; Quần xã Tràm trên vùng ngập nước thường xuyên và định kỳ; Quần xã cây gỗ lớn trên đầm lầy than bùn.Mỗi một quần xã đặc trưng bởi một nhóm loài thực vật ưu thế khác nhau, cấu trúc khác nhau đặc thù cho dạng lập địa tạo nên sự đa dạng về thực vật vùng cát nói chung, và vùng đất cát nội đồng ngập nước nói riêng. Những kết quả đã đạt được là cơ sở dữ liệu về thực vật vùng cát, giúp cho công tác bảo tồn, phục hồi hệ sinh thái vùng cát sau này.Plants of submerged inner sandy area (coastal sandy and sandune areas) is divided 4 flora communities, they are Moist grasslands on the edge of the lake; Shrub community in low-lying inner sandy area; Melaleuca community on submerged inner sandy area and sandy seasonally inundated; Wood community on peat swamp, submerged inner sandy area. Site condition based causes flora communities with corresponding of species composition and ecological structures, make up the diversity of the submerged inner sandy flora system. These results contributed a database on the sandy plants for conservation, ecological based restoration in study sites.

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Habitat evolution of a peat swamp forest and belowground carbon sequestration during the Holocene along the coastal lowland in Central Sumatra, Indonesia

Progress in Earth and Planetary Science ◽

10.1186/s40645-019-0288-8 ◽

2019 ◽

Vol 6 (1) ◽

Cited By ~ 1

Author(s):

Kiyoshi Fujimoto ◽

Masafumi Miura ◽

Shigeo Kobayashi ◽

Herwint Simbolon

Keyword(s):

Carbon Sequestration ◽

Swamp Forest ◽

Peat Swamp Forest ◽

The Holocene ◽

Coastal Lowland ◽

Peat Swamp ◽

Belowground Carbon ◽

Central Sumatra

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A late-Holocene multiproxy fire record from a tropical savanna, eastern Arnhem Land, Northern Territory, Australia

The Holocene ◽

10.1177/0959683620988030 ◽

2021 ◽

pp. 095968362098803

Author(s):

Emma Rehn ◽

Cassandra Rowe ◽

Sean Ulm ◽

Craig Woodward ◽

Michael Bird

Keyword(s):

Isotope Composition ◽

Fire Regimes ◽

Northern Territory ◽

Ecosystem Dynamics ◽

Optical Methods ◽

Fire Intensity ◽

Tropical Savanna ◽

Anthropogenic Fire ◽

Pyrogenic Carbon ◽

Arnhem Land

Fire has a long history in Australia and is a key driver of vegetation dynamics in the tropical savanna ecosystems that cover one quarter of the country. Fire reconstructions are required to understand ecosystem dynamics over the long term but these data are lacking for the extensive savannas of northern Australia. This paper presents a multiproxy palaeofire record for Marura sinkhole in eastern Arnhem Land, Northern Territory, Australia. The record is constructed by combining optical methods (counts and morphology of macroscopic and microscopic charcoal particles) and chemical methods (quantification of abundance and stable isotope composition of pyrogenic carbon by hydrogen pyrolysis). This novel combination of measurements enables the generation of a record of relative fire intensity to investigate the interplay between natural and anthropogenic influences. The Marura palaeofire record comprises three main phases: 4600–2800 cal BP, 2800–900 cal BP and 900 cal BP to present. Highest fire incidence occurs at ~4600–4000 cal BP, coinciding with regional records of high effective precipitation, and all fire proxies decline from that time to the present. 2800–900 cal BP is characterised by variable fire intensities and aligns with archaeological evidence of occupation at nearby Blue Mud Bay. All fire proxies decline significantly after 900 cal BP. The combination of charcoal and pyrogenic carbon measures is a promising proxy for relative fire intensity in sedimentary records and a useful tool for investigating potential anthropogenic fire regimes.

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