Influence of tree species on carbon sequestration in afforested pastures in a humid temperate region

Pérez-Cruzado, César; Mansilla-Salinero, Pablo; Rodríguez‐Soalleiro, Roque; Merino, Agustı́n

doi:10.1007/s11104-011-1035-0

Cited by 73 publications

(51 citation statements)

References 102 publications

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“…4). Pérez-Cruzado et al (2012) observed a trend in these same plots with age, where the youngest plots had the lowest carbon densities and the oldest the highest carbon densities. Bias in model outputs were therefore due to overestimation of decomposition rates for the model, which led to greater differences as time since land-use change increased.…”

Section: Discussionmentioning

confidence: 70%

“…In the CO 2 Fix model, the effects of climate on decomposition are related to the macroclimate, and some effects of microclimatic conditions on SOC decomposition may not have been taken into account. Lemma et al (2007) considered that the contribution that different species make to microclimate is small relative to litter input and litter quality, although Pérez-Cruzado et al (2012) suggested that these differences may be greater. Large differences among species in soil organic carbon evolution after landuse change were also observed in the same plots as those used here for validation, which can be only attributed to species-induced differences in microclimatic conditions (Pérez-Cruzado et al 2012).…”

Section: Discussionmentioning

confidence: 99%

“…This enables construction of a specific yield table for each initial condition. Validation was carried out for the biomass and the soil module using a network of 120 plots located in afforestations on former agricultural land in northwestern Spain, where carbon density (Mg ha -1 ) has been evaluated in biomass and soil (Pérez-Cruzado et al 2012). Biomass and soil carbon density were estimated by direct measurements in the field and plotted against values predicted by the CO 2 Fix model.…”

Section: Model Initialization and Validationmentioning

confidence: 99%

“…The carbon concentration in the organic layer was used to estimate litter carbon density (Pérez-Cruzado et al 2012). Total soil carbon density was estimated as the sum of carbon density in the organic layer and mineral soil to 30 cm depth.…”

Section: Model Initialization and Validationmentioning

confidence: 99%

“…Although the effects on the C stock change in the system have been already studied (Pérez-Cruzado et al 2012), the effects of forest management on the C stock in this particular system are still not clear. Appropriate management of a forest system should guarantee maintenance of or an increase in C balance, independently of the management objectives, which sometimes focus on enhancement of carbon in forest biomass, although this has an impact on soils and wood products (Karjalainen 1996).…”

Section: Introductionmentioning

confidence: 99%

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Carbon balance for different management practices for fast growing tree species planted on former pastureland in southern Europe: a case study using the CO2Fix model

et al. 2012

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Although it is known that forestry mitigates carbon emissions to some degree, there is still a need to investigate the extent to which changes in forest management regimes affect the carbon cycle. In a climate-change scenario, forest management schemes must be optimized to maximize product supply and minimize environmental impacts. It is difficult to predict the mitigating effects of different silvicultural regimes because of differences in the growth characteristics of each species, destination of products, and industrial efficiencies. The objective of the present study was to use a modeling approach to evaluate the effects of different management regimes for fast growing species in southern temperate Europe in relation to mitigating climate change. A comprehensive study was carried out considering the C sink effect in biomass, soil and wood products, the substitutive effect of bioenergy, and particular conditions of the forest industry in southern Europe. The mechanistic CO 2 Fix model was parameterized for three species used in fast growing plantations in southern Europe: Eucalyptus globulus, Eucalyptus nitens, and Pinus radiata. Data from 120 plots covering the complete age range observed for each species were used to calculate changes in C stocks in aboveground biomass and organic and mineral soil and to validate the parameterized model for these conditions. Additional information about the efficiency of forest industry processes in the region was also considered. A strong bias in soil organic carbon estimation was observed and attributed to overestimations in the decomposition rates of soil compartments. Slight bias was also observed in the carbon biomass estimation when forest-specific yield models were used to simulate afforestation over former pastureland. As regards the model sensitivity, the Yasso model was strongly robust to turnover of leaves, roots, and branches. The chip wood production alternative yielded higher carbon stock in biomass and products, as well as in bioenergy substitution effect, than the sawn wood production alternative. Nevertheless, the sawn wood alternative was the most effective as regards the C stock in the soil. Site index had an important effect for all species, alternatives, and compartments, and mitigating effects increased with site index. Harvesting of clearcutting and thinning slash for bioenergy use led to a slight decrease in the soil carbon equilibrium but significantly increased the mitigation effect through bioenergy use.

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Section: Discussionmentioning

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Section: Model Initialization and Validationmentioning

confidence: 99%

Section: Model Initialization and Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Carbon balance for different management practices for fast growing tree species planted on former pastureland in southern Europe: a case study using the CO2Fix model

et al. 2012

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Afforestation Drives Soil Carbon and Nitrogen Changes in China

2016

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Afforestation has been proposed as an effective method of carbon (C) sequestration; however, the magnitude and direction of soil C and nitrogen (N) dynamics following afforestation are not well understood. This study was designed to examine soil C and N dynamics following afforestation and to determine how various factors affect soil organic C (SOC) and total N (TN) after land-use conversions through the compilation and analysis of published data from 61 individual studies (512 observations at 61 sites in China). This analysis showed that for different previous land uses, post-afforestation SOC, TN, and C/N ratio varied in diverse temporal patterns. The relationship of soil C-N coupling was related to land use prior to afforestation and forest age. At 0-100 cm soil depths, SOC and TN increased at rates about 0·23 and 0·03 g kg À1 y À1 , respectively, and the C/N ratio was about 0·19 y À1 . SOC and TN were significantly affected by tree species, forest age, and soil depth. SOC, TN, and C/N were negatively correlated with soil bulk density (p < 0·01) and pH (p > 0·05) but positively correlated with soil total phosphorus (p < 0·01), soil moisture (p < 0·01) and soil microbial biomass C (p < 0·01) and N (p < 0·01). Additionally, SOC and TN were higher for the mid-level humidity index in China and were also determined by precipitation, temperature, and forest age. These results highlight the importance of previous land use, tree species, soil depth, and forest age in determining soil C and N changes in a range of environments and land-use transitions.

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Long‐term afforestation significantly improves the fertility of abandoned farmland along a soil clay gradient on the Chinese Loess Plateau

Zhang

Wei

et al. 2018

Land Degrad Dev

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In China, almost half of the total land area is degraded, mainly due to the unreasonable use of land for agricultural production. During the past half‐century, afforestation has become a popular management option to remedy degraded soils. In this paper, we studied the long‐term effects of afforestation on the major properties of soils with different textures. We measured the changes in soil physical, chemical, and fertility properties after 10, 20, and 30 years of afforestation with black locust (Robinia pseudoacacia) on abandoned farmland at five sites on the Loess Plateau, China, which is characterized by a temperate monsoon climate. The soil clay contents varied significantly among sites. The objectives were to understand how long‐term afforestation affects soil properties and whether such effects depend on the soil texture. Averaged across the five sites and the depths of 0–10 and 10–20 cm, afforestation resulted in significant increases in the proportion of macroaggregates (+22.5%), saturated hydraulic conductivity (+185.4%), organic matter content (+110.5%), and total nitrogen content (+110.5%) but significant decreases in the proportion of microaggregates (−21.9%) and bulk density (−10.8%). The silt + clay fraction, soil pH, and nitrate content were minimally affected by afforestation. The effects of afforestation were greater at 0–10 cm than at 10–20 cm, but they varied between sites. Furthermore, most soil metrics linearly responded to the time of afforestation, and such responses were dependent on the soil clay content. Our results suggest that long‐term afforestation improves soil fertility better in soils with a clay content of approximately 20%.

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Influence of tree species on carbon sequestration in afforested pastures in a humid temperate region

Cited by 73 publications

References 102 publications

Carbon balance for different management practices for fast growing tree species planted on former pastureland in southern Europe: a case study using the CO2Fix model

Carbon balance for different management practices for fast growing tree species planted on former pastureland in southern Europe: a case study using the CO2Fix model

Afforestation Drives Soil Carbon and Nitrogen Changes in China

Long‐term afforestation significantly improves the fertility of abandoned farmland along a soil clay gradient on the Chinese Loess Plateau

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