State of the scientific knowledge on properties and genesis of Anthropogenic Dark Earths in Central Amazonia (terra preta de Índio)

Glaser, Bruno; Birk, Jago Jonathan

doi:10.1016/j.gca.2010.11.029

Cited by 456 publications

(413 citation statements)

References 62 publications

(132 reference statements)

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“…In contrast to agricultural soil, adding biochar significantly decreased the average CO 2 emissions over all treatments from the forest soil (Table 2), which may be explained by the relatively higher SOM in forest soil (Table 1). Many studies have also demonstrated that biochar addition can reduce CO 2 emissions in high-SOM soil (Steiner et al 2007;Kolb et al 2009) due to the shifts in the soil microbial community toward fungi (Steiner et al 2007;Glaser and Birk 2012). Compared to bacteria, fungi generally have lower temperature sensitivity and reduced soil respiration (Biasi et al 2005).…”

Section: Discussion N 2 O Co 2 and Nh 3 Emissions Affected By N Depomentioning

confidence: 99%

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Sun

Chen

et al. 2014

Soil Science and Plant Nutrition

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Both nitrogen (N) deposition and biochar can affect the emissions of nitrous oxide (N 2 O), carbon dioxide (CO 2 ) and ammonia (NH 3 ) from different soils. Here, we have established a simulated wet N deposition experiment to investigate the effects of N deposition and biochar addition on N 2 O and CO 2 emissions and NH 3 volatilization from agricultural and forest soils. Repacked soil columns were subjected to six N deposition events over a 1-year period. N was applied at rates of 0 (N0), 60 (N60), and 120 (N120) kg Nh a −1 yr −1 without or with biochar (0 and 30 t ha). For agricultural soil, adding N increased cumulative N 2 O emissions by 29.8% and 99.1% (p < 0.05) from the N60 and N120 treatments, respectively as compared to without N treatments, and N120 emitted 53.4% more (p < 0.05) N 2 O than the N60 treatment; NH 3 volatilization increased by 33.6% and 91.9% (p < 0.05) from the N60 and N120 treatments, respectively, as compared to without N treatments, and N120 emitted 43.6% more (p < 0.05) NH 3 than N60; cumulative CO 2 emissions were not influenced by N addition. For forest soil, adding N significantly increased cumulative N 2 O emissions by 141.2% (p < 0.05) and 323.0% (p < 0.05) from N60 and N120 treatments, respectively, as compared to without N treatments, and N120 emitted 75.4% more (p < 0.05) N 2 O than N60; NH 3 volatilization increased by 39.0% (p < 0.05) and 56.1% (p < 0.05) from the N60 and N120 treatments, respectively, as compared to without N treatments, and there was no obvious difference between N120 and N60 treatments; cumulative CO 2 emissions were not influenced by N addition. Biochar amendment significantly (p < 0.05) decreased cumulative N 2 O emissions by 20.2% and 25.5% from agricultural and forest soils, respectively, and increased CO 2 emissions slightly by 7.2% and NH 3 volatilization obviously by 21.0% in the agricultural soil, while significantly decreasing CO 2 emissions by 31.5% and NH 3 volatilization by 22.5% in the forest soil. These results suggest that N deposition would strengthen N 2 O and NH 3 emissions and have no effect on CO 2 emissions in both soils, and treatments receiving the higher N rate at N120 emitted obviously more N 2 O and NH 3 than the lower rate at N60. Under the simulated N deposition circumstances, biochar incorporation suppressed N 2 O emissions in both soils, and produced contrasting effects on CO 2 and NH 3 emissions, being enhanced in the agricultural soil while suppressed in the forest soil.

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Section: Discussion N 2 O Co 2 and Nh 3 Emissions Affected By N Depomentioning

confidence: 99%

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Sun

Chen

et al. 2014

Soil Science and Plant Nutrition

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“…Also of interest have been tropical rainforest anthrosols such as the fertile terra preta soils of the pre-Columbian Amazon. Research into these pre-Columbian soilscape legacies has both encouraged the search for pantropical analogues [107][108] and inspired attempts to recreate similarly fertile soils 109 .…”

Section: The Deep History Of Global Tropical Forests: Implications Fomentioning

confidence: 99%

The deep human prehistory of global tropical forests and its relevance for modern conservation

et al. 2017

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Abstract/first paragraphSignificant human impacts on tropical forests have been considered the preserve of recent societies, linked to large-scale deforestation, extensive and intensive agriculture, resource mining, livestock grazing, and urban settlement. Cumulative archaeological evidence now demonstrates, however, that Homo sapiens has actively manipulated tropical forest ecologies for at least 45,000 years. It is clear that these millennia of impacts need to be taken into account when studying and conserving tropical forest ecosystems today. Nevertheless, archaeology has so far provided only limited practical insight into contemporary human-tropical forest interactions. Here, we review significant archaeological evidence for the impacts of past hunter-gatherers, agriculturalists, and urban settlements on global tropical forests. We compare the challenges faced, as well as the solutions adopted, by these groups with those confronting present-day societies, which also rely on tropical forests for a variety of ecosystem services. We emphasise archaeology's importance not only in promoting natural and cultural heritage in tropical forests, but also in taking an active role to inform modern conservation and policy-making.

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“…10% of global soil organic carbon (SOC) stocks calculated by Batjes (2016). BC promotes the long-lasting fertility of Amazonian dark earths (Glaser and Birk, 2012) and contributes to long term soil C storage because it is more resistant to degradation than uncharred soil organic matter (SOM). Hence, soil amendment with biochar (BC produced intentionally to be applied to soil) is increasingly being regarded as a feasible alternative to tackling greenhouse gas emissions by increasing soil carbon sequestration, while enhancing sustainably soil fertility (Lehmann, 2007).…”

Section: Introductionmentioning

confidence: 99%

Long term change in chemical properties of preindustrial charcoal particles aged in forest and agricultural temperate soil

Hardy

Leifeld

Knicker

et al. 2017

Organic Geochemistry

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Keywords:Preindustrial charcoal kiln Land-use change Biochar X-ray photoelectron spectroscopy (XPS) Differential scanning calorimetry (DSC) Fourier Transform Infrared Spectroscopy (FTIR) 13 C nuclear magnetic resonance ( 13 C NMR) Dichromate oxidation a b s t r a c t Black carbon (BC) plays an important role in terrestrial carbon storage. Nevertheless, the effect of cultivation on long term dynamics of BC in soil has been poorly addressed. To fill this gap, we studied the chemical properties of charcoal particles extracted from preindustrial kilns in Wallonia, Belgium, along a chronosequence of land use change from forest to agricultural soil, up to 200 years of cultivation. Preindustrial charcoal samples were compared with charcoal subjected to short term ageing in a currently active kiln.Cultivation increased the association of charcoal with soil minerals, which is favored by deprotonation of carboxylic acids under liming, thereby enhancing the reactivity of charcoal toward mineral surfaces. The large specific surface area of charcoal, related to its porosity, promotes the precipitation of 2:1 phyllosilicates and CaCO 3 . Both ageing and cultivation decreased the resistance of charcoal to dichromate oxidation, related to an increase in the H/C of charcoal. Differential scanning calorimetry revealed the presence of three fractions of distinct thermal stability. Saturation of carboxylate groups with Ca 2+ under liming decreased the thermal stability of the O-rich, less thermally stable fraction of charcoal. This fraction decreased over time of cultivation, leading to a relative accumulation of the thermally most stable fraction of charcoal. This might result from the preferential loss of the O-rich fraction or the slowdown of charcoal from oxidation via association with minerals. Our results highlight the idea that land use significantly affects the properties of BC through the modification of soil conditions, which might influence the kinetics of BC loss from soil.

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State of the scientific knowledge on properties and genesis of Anthropogenic Dark Earths in Central Amazonia (terra preta de Índio)

Cited by 456 publications

References 62 publications

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

The deep human prehistory of global tropical forests and its relevance for modern conservation

Long term change in chemical properties of preindustrial charcoal particles aged in forest and agricultural temperate soil

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State of the scientific knowledge on properties and genesis of Anthropogenic Dark Earths in Central Amazonia (terra preta de Índio)

Cited by 456 publications

References 62 publications

Combined effects of nitrogen deposition and biochar application on emissions of N2O, CO2and NH3from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N2O, CO2and NH3from agricultural and forest soils

The deep human prehistory of global tropical forests and its relevance for modern conservation

Long term change in chemical properties of preindustrial charcoal particles aged in forest and agricultural temperate soil

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Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils