The influence of land-use change on the organic carbon distribution and microbial respiration in a volcanic soil of the Chilean Patagonia

Dubé, Francis; Zagal, Erick; Stolpe, Neal B.; Espinosa, Miguel

doi:10.1016/j.foreco.2009.01.044

Cited by 74 publications

(53 citation statements)

References 39 publications

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“…In a previous investigation [25], researchers working with a 150-year-old unmanaged second-growth Nothofagus pumilio forest on an Andisol soil in the Chilean Patagonia reported 229 Mg·C·ha −1 for aboveground tree biomass, which greatly exceeds the values reported in this study for Nothofagus obliqua. One possible explanation is the totally different stand characteristics of these two Nothofagus species.…”

Section: Stocks In Tree Biomass and Soilcontrasting

confidence: 84%

“…In temperate forests dominated by Nothofagus pumilio in southern Chile, [25,35] the reported SOC stocks were 100 and 102 Mg·ha −1 , respectively, which were measured in Andisols at 0-40 cm depth, whereas others [36] reported 132 Mg·C·ha −1 in Andisols at 0-30 cm depth under a second-growth N. obliqua forest. While the latter value is more similar to the results obtained in this study in UNF, the reported value of 100 Mg·C·ha −1 reported by [25] corresponds to a forest subjected to moderate interventions, mostly from light thinning and cattle grazing in the summer months and may therefore be compared to the Andean PDF, with a soil organic C stock in a similar range (119 Mg·C·ha −1 in 2013).…”

Section: Stocks In Tree Biomass and Soilmentioning

confidence: 97%

“…The light fraction of organic matter and sand (that were retained on the 212 µm sieve) were separated by flotation and sedimentation in distilled water [24]. Soil samples were sieved according to separate the following fractions: macroaggregates (>212 µm), mesoaggregates (212-53 µm), and microaggregates (<53 µm) [25,26]. The fractions were dried at 50 • C for 48 h and weighed.…”

Section: Physical Fractionation Of Soil Organic Mattermentioning

confidence: 99%

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SOM and Biomass C Stocks in Degraded and Undisturbed Andean and Coastal Nothofagus Forests of Southwestern South America

Dubé

Stolpe

2016

Forests

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Abstract:Grazing and over-exploitation can severely degrade soil in native forests. Considering that productivity in ecosystems is related to soil organic matter (SOM) content and quality, the objectives of this study were to: (1) determine the influence of degraded (DEF), partly-degraded (PDF), and undisturbed (UNF) Nothofagus forests on the stocks of carbon (C) in tree biomass and SOM; (2) evaluate fractions of SOM as indicators of sustainable management; and (3) use the Century model to determine the potential gains of soil organic C (SOC). The forests are located in the Andes and Coastal mountains of southern Chile. The SOM was fractionated to separate the light fraction (LF), macroaggregates (>212 µm), mesoaggregates (212-53 µm), and microaggregates (<53 µm). In two measurement periods, the SOC stocks at 0-20 cm and 20-40 cm depths in macroaggregates were on average 100% higher in the Andean UNF, and SOC was over twice as much at 20-40 cm depth in Andean DEF. Century simulations showed that improved silvopastoral management would gradually increase total SOC in degraded soils of both sites, especially the Ultisol with a 15% increase between 2016 and 2216 (vs. 7% in the Andisol). Greater SOC in macroaggregates (p < 0.05) of UNF indicate a condition of higher sustainability and better management over the years.

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Section: Stocks In Tree Biomass and Soilcontrasting

confidence: 84%

Section: Stocks In Tree Biomass and Soilmentioning

confidence: 97%

Section: Physical Fractionation Of Soil Organic Mattermentioning

confidence: 99%

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SOM and Biomass C Stocks in Degraded and Undisturbed Andean and Coastal Nothofagus Forests of Southwestern South America

Dubé

Stolpe

2016

Forests

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“…The ecological succession of the grass communities had a significant effect on SOC sequestration, whereas, no such effect was detected for the forest communities. The can be attribute to a shorter life cycle of grass as compared with trees, contributing to larger C cycling coming from leaves and roots in superficial soil (Dube et al, 2009). For forest communities, however, there are time thresholds corresponding to the environmental conditions for significant enhancement of soil quality and Specifically SOC sequestration.…”

Section: Soc Sequestration Potentials As Affected By Vegetation Restomentioning

confidence: 99%

Effects of vegetation restoration on soil organic carbon sequestration at multiple scales in semi-arid Loess Plateau, China

Wang

Lü

et al. 2011

CATENA

185

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“…in the sites. Dube et al (2009) found that variation in SOC stock at different land-use types might be caused due to quantity and quality of plant material as well as soil bulk densities under different land-uses. Total organic carbon and nitrogen storage were higher in upper soils than in lower soils.…”

Section: Soil Chemical Characteristicsmentioning

confidence: 99%

Properties of Soils under Different Land Uses in Chittagong Region, Bangladesh

Osman¹,

Haque²

2015

Journal of Forest and Environmental Science

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In this study, we investigated the effects of three land uses on soil properties in two soil layers; surface soil (0∼15 cm) and subsoil (15∼30 cm). Soil samples were collected from planted forest, barren lands and cultivated lands from different areas in Chittagong Cox's Bazar and analyzed for some physical and chemical properties. Results showed that soil textural class varied from sandy clay loam in planted forest and barren land site to sandy loam in cultivated soils. Maximum water holding capacity was higher in forest followed by barren land and the lowest in cultivated lands. At both soil depths, soils of cultivated land showed the highest values of bulk density (1.42 to 1.50 g cm -3), followed by barren lands (1.37 to 1.46 g cm -3) and the least (1.32 to 1.45 g cm -3) in forest soils. Total porosity decreased with depth ranging from 40.24% to 41.53% in subsoils and from 42.04 to 43.23% in surface soil of cultivated and of planted forest sites respectively. The result further revealed that organic carbon (OC) and total nitrogen (TN) contents were higher in the planted forest soil than in other two land uses. The soils of all land uses under study are acidic in nature and the lowest pH was found in both surface and subsoils of barren land. Cultivated soil contained the highest amount of available P, Ca, Mg and K in both surface soil and subsoils. In contrast, barren site had the lowest contents of available P, Ca, Mg and K in both layers. The soil organic carbon (SOC) and total N storage were higher in planted forest than in barren and cultivated land uses.

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The influence of land-use change on the organic carbon distribution and microbial respiration in a volcanic soil of the Chilean Patagonia

Cited by 74 publications

References 39 publications

SOM and Biomass C Stocks in Degraded and Undisturbed Andean and Coastal Nothofagus Forests of Southwestern South America

SOM and Biomass C Stocks in Degraded and Undisturbed Andean and Coastal Nothofagus Forests of Southwestern South America

Effects of vegetation restoration on soil organic carbon sequestration at multiple scales in semi-arid Loess Plateau, China

Properties of Soils under Different Land Uses in Chittagong Region, Bangladesh

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