Global patterns of the effects of land-use changes on soil carbon stocks

Deng, Lei; Zhu, Guangyu; Tang, Zhuangsheng; Shangguan, Zhouping

doi:10.1016/j.gecco.2015.12.004

Cited by 239 publications

(166 citation statements)

References 33 publications

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“…where SOC is the soil organic C concentration (g/kg), BD is the soil BD (g/cm 3 ) and D is the soil thickness (cm), equal to 20 cm in this study. For those studies in which soil BD was not measured, we calculated BD using the empirical global relationship between SOC and BD (Deng, Zhu, Tang, & Shangguan, 2016):…”

Section: Soil C Pool (C S )mentioning

confidence: 99%

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools

Deng

Huang

Kim

et al. 2020

Global Change Biology

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133

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The effects of nitrogen (N) deposition on soil organic carbon (C) and greenhouse gas (GHG) emissions in terrestrial ecosystems are the main drivers affecting GHG budgets under global climate change. Although many studies have been conducted on this topic, we still have little understanding of how N deposition affects soil C pools and GHG budgets at the global scale. We synthesized a comprehensive dataset of 275 sites from multiple terrestrial ecosystems around the world and quantified the responses of the global soil C pool and GHG fluxes induced by N enrichment. The results showed that the soil organic C concentration and the soil CO2, CH4 and N2O emissions increased by an average of 3.7%, 0.3%, 24.3% and 91.3% under N enrichment, respectively, and that the soil CH4 uptake decreased by 6.0%. Furthermore, the percentage increase in N2O emissions (91.3%) was two times lower than that (215%) reported by Liu and Greaver (Ecology Letters, 2009, 12:1103–1117). There was also greater stimulation of soil C pools (15.70 kg C ha−1 year−1 per kg N ha−1 year−1) than previously reported under N deposition globally. The global N deposition results showed that croplands were the largest GHG sources (calculated as CO2 equivalents), followed by wetlands. However, forests and grasslands were two important GHG sinks. Globally, N deposition increased the terrestrial soil C sink by 6.34 Pg CO2/year. It also increased net soil GHG emissions by 10.20 Pg CO2‐Geq (CO2 equivalents)/year. Therefore, N deposition not only increased the size of the soil C pool but also increased global GHG emissions, as calculated by the global warming potential approach.

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Section: Soil C Pool (C S )mentioning

confidence: 99%

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools

Deng

Huang

Kim

et al. 2020

Global Change Biology

Self Cite

133

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“…With the purpose of avoiding abrupt and unlikely changes of SOC stocks in LULC transitions, we considered a gradual change of SOC stocks between LULC classes according to the soil carbon SRs and temporal patterns for LULC conversions described in Deng et al (2016) (Table 4) applying the following equation: Table 4 (adapted from Deng et al 2016), and ΔT is the time period of the LULC transition (yrs).…”

Section: Carbon Modellingmentioning

confidence: 99%

Analysing carbon sequestration and storage dynamics in a changing mountain landscape in Portugal: insights for management and planning

Sil

Fonseca

Gonçalves

et al. 2017

International Journal of Biodiversity Science, Ecosystem Servic

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We assessed the effects of landscape change on the climate regulation ecosystem service in a mountain river basin of Portugal, through the quantification, valuation and mapping of carbon sequestration and storage. The analyses were based on land use and land cover (LULC) changes that took place between 1990 and 2006 and on expected changes defined by three LULC change scenarios for 2020. We used the Integrated Valuation of Ecosystem Services and Tradeoffs model for scenario building and carbon assessment and valuation, and several modelling tools to assess past, current and future carbon in four different pools. Soil organic carbon data was obtained through an extensive sampling scheme across the entire study area. Recent (1990Recent ( -2006 and expected landscape changes (2006-2020) affected considerably carbon sequestration and storage. Observed landscape changes generally promoted carbon sequestration and storage, and had a positive effect on the climate regulation ecosystem service, both biophysically and economically. Expected LULC changes further extend the capability of the landscape to increase carbon sequestration and storage in the near future. The carbon sequestered and stored in vegetation and soil contributes to avoid socio-economic damages from climate change, while increasing the economic value of particular LULC classes and the whole landscape. These results are essential to inform land planning, especially on how, where and when changes in landscapes may affect the provision of the climate regulation ecosystem service. ARTICLE HISTORY

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“…The highest proportion of terrestrial carbon is stored in forest ecosystems [1]. Thus forests are important to balance global carbon dioxide (CO 2 ) [2][3][4]. Human activities are important considerations because land use change and forest management directly affect the forest conditions and thus the carbon cycle.…”

Section: Introductionmentioning

confidence: 99%

The Carbon Sequestration Potential of Degraded Agricultural Land in the Amhara Region of Ethiopia

Belay

Pötzelsberger

Hasenauer

2018

Forests

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Forests are a key player within the global carbon cycle and reforestation is an important climate change mitigation mechanism. In this study, we identify potentially suitable areas for reforestation to assess the carbon sequestration potential in the highly deforested and degraded Amhara region of Ethiopia. We apply biogeochemical mechanistic ecosystem modelling to predict the amount of carbon that can be potentially sequestered within different time horizons. Since human intervention plays a key role within the Amhara region, three different forest management scenarios and five different rotation periods following reforestation are tested: (i) unthinned; (ii) removal of 5% of the stem carbon every 20 years (thinning 1); and (iii) removal of 10% stem carbon every 20 years (thinning 2), as well as a rotation period of 10, 30, 50, 100, and 150 years. Sustainable management of reforested land is addressed by implementing the so called 'Normal-forest' system (equal representation of every age class). This ensures the long term sequestration effect of reforested areas. The study shows that 3.4 Mha (Mha = Million hectare) of land, including bare land (0.7 Mha), grass land (1.2 Mha), and shrub land (1.5 Mha) can be considered as ecologically potentially suitable for reforestation. Assuming a 100 year rotation period in a 'Normal-forest' system, this shows that a total net carbon sequestration potential of 177 Tg C (10.8 Tg C in the soil and 165.9 Tg C aboveground; Teragram = 10 12 g) is possible, if all 3.4 Mha are replanted. The highest total net carbon sequestration (soil and aboveground) was evident for the Highland-wet agro-ecological zone, whereas the lowest values are typically in the Midland-dry zone. The highest net aboveground carbon sequestration was predicted for reforestations on current grass land and shrub land versus bare land, whereas the highest net soil carbon sequestration was predicted on current bare land, followed by grass land and shrub land.

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Global patterns of the effects of land-use changes on soil carbon stocks

Cited by 239 publications

References 33 publications

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools

Analysing carbon sequestration and storage dynamics in a changing mountain landscape in Portugal: insights for management and planning

The Carbon Sequestration Potential of Degraded Agricultural Land in the Amhara Region of Ethiopia

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Global patterns of the effects of land-use changes on soil carbon stocks

Cited by 239 publications

References 33 publications

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N2O flux and greater stimulation of the calculated C pools

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N2O flux and greater stimulation of the calculated C pools

Analysing carbon sequestration and storage dynamics in a changing mountain landscape in Portugal: insights for management and planning

The Carbon Sequestration Potential of Degraded Agricultural Land in the Amhara Region of Ethiopia

Contact Info

Product

Resources

About

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools

Soil GHG fluxes are altered by N deposition: New data indicate lower N stimulation of the N₂O flux and greater stimulation of the calculated C pools