Meta-analysis on atmospheric carbon capture in Spain through the use of conservation agriculture

González-Sánchez, Emilio J.; Ordóñez‐Fernández, Rafaela; Carbonell-Bojollo, Rosa; Veroz-González, Óscar; Gil-Ribes, Jesús A.

doi:10.1016/j.still.2012.03.001

Cited by 170 publications

(95 citation statements)

References 39 publications

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“…In our greenhouse gas emission balance, however, we adopted a time frame of 100 years, which resulted in an average sequestration rate of 0.14 Mg C/ha. In addition, some of our assumptions were low when compared with other published data, for example, carbon sequestration associated to cover crops (González-Sánchez et al 2012). Even with these conservative estimates, the results show how the magnitude of soil carbon sequestration in Mediterranean organic systems is often similar to that of the aggregate of all other emissions in the balance, potentially resulting in carbon neutral products.…”

Section: Carbon Sequestration In Organic and Conventional Farmingmentioning

confidence: 54%

“…Cover crops in woody cropping systems induced a net carbon sequestration rate of −0.27 Mg C/ha. This value can be considered conservative, for example, when compared with the mean values for Spanish cover crops reported by González-Sánchez et al (2012). It was assumed that 30.5 % of the C contained in external organic inputs such as manures, composts, and manufactured organic fertilizers was incorporated to the soil and thus contributed to net C accumulation.…”

Section: Carbon Sequestrationmentioning

confidence: 99%

“…80 % of total fuelwood consumed in Spain in the year 2000 (Infante-Amate et al 2014). In addition, cover crops can be established below the trees protecting the soil from erosion, contributing to soil carbon sequestration (González-Sánchez et al 2012;Aguilera et al 2013a) and potentially serving as animal feed (Ramos et al 2011). In spite of these promising features, there is some concern about the temporal limitation of soil carbon sequestration, which would only occur until a new equilibrium is reached.…”

Section: Introductionmentioning

confidence: 99%

“…In spite of these promising features, there is some concern about the temporal limitation of soil carbon sequestration, which would only occur until a new equilibrium is reached. For example, González-Sánchez et al (2012) observed that C sequestration rate under cover crops in Spanish fruit tree orchards was 1.59 Mg C/ha in short-term (<10 years) experiments and 0.35 Mg C/ha in long-term (>10 years) experiments. On the other hand, tree cropping systems following forest may induce a decrease in soil organic carbon, at least during the establishment period (Noponen et al 2013), all of which suggests that there is a need to optimize the management in order to maximize soil quality and carbon content in orchards.…”

Section: Introductionmentioning

confidence: 99%

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Greenhouse gas emissions from conventional and organic cropping systems in Spain. II. Fruit tree orchards

Aguilera

Guzmán

Alonso

2014

Agron. Sustain. Dev.

141

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Fruit tree orchards have a historical and economic importance for Mediterranean agriculture, notably in Spain. Fruit tree orchards have the potential to mitigate global warming by sequestrating carbon (C) and providing renewable fuels. Actually, there is few information on the benefits of organic practices. Therefore, we analyzed the greenhouse gas contribution of 42 pairs of organic and conventional perennial cropping systems, including citrus, subtropical trees, other fruit trees, treenuts, vineyards, and olives, using life-cycle assessment (LCA). The assessment was based on management information from interviews and involved the estimation of soil carbon sequestration, specific Mediterranean N 2 O emission factors, and the consideration of coproducts. Results show on average a 56 % decrease of greenhouse gas emissions under organic versus conventional cropping, on an area basis. On a product basis, greenhouse gas emissions decreased by 39 % on average. These findings are explained mainly by C sequestration in soils, which is due in turn to higher C inputs by cover cropping and incorporation of pruning residues.

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Section: Carbon Sequestration In Organic and Conventional Farmingmentioning

confidence: 54%

Section: Carbon Sequestrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Greenhouse gas emissions from conventional and organic cropping systems in Spain. II. Fruit tree orchards

Aguilera

Guzmán

Alonso

2014

Agron. Sustain. Dev.

141

View full text Add to dashboard Cite

show abstract

“…CC are spontaneous or cultivated plants that grow between tree lines with the main objective of soil protection (Gómez, 2009). Apart from soil conservation, the use of CC has additional positive environmental impacts on soil carbon sequestration (González-Sánchez et al, 2012), biodiversity (Rey, 2011), visual quality of landscapes (Arriaza et al, 2004) and water pollution (Castro et al, 2008). Although there are studies that analyze the adoption of CC (Franco, 2011;Rodríguez-Entrena and Arriaza, 2013), to our best knowledge there are no other studies estimating farmers' WTA for CC within AES.…”

Section: Introductionmentioning

confidence: 99%

The design of agri-environmental schemes: Farmers’ preferences in southern Spain

et al. 2015

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Agri-environmental schemes (AES) play a key role in promoting the production of environmental public goods by European Union agriculture. Although extensive literature has analyzed AES, some important issues remain understudied. This paper performs an ex-ante assessment of AES in permanent cropping, analyzing several issues that have received little attention from researchers, such as ecological focus areas (EFA) and collective participation. For this purpose, a choice experiment was used to assess farmers' preferences toward AES in a case study of olive groves in southern Spain. Results show high heterogeneity among farmers, with different classes being identified, from potential participants to non-participants. As regards EFA, almost half of the farmers would be willing to accept it for low monetary incentives (€8-9/ha per additional 1% of the farmland devoted to EFA) while the rest would do it for moderate-to-high monetary incentives (€41-151/ha per additional 1% of EFA). However, for a high share of EFA (e.g., 5-7%) higher incentives would presumably be required due to the intrinsic spatial restrictions of olive groves. With regard to collective participation, we find that it is unlikely that farmers would participate collectively with the incentive of the up-to-30% EU-wide bonus. These results are relevant for policy-making now when new AES are being designed for the next programming period 2014-2020.

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No‐tillage increased corn yields and carbon sequestration

Chen

Zhang

et al. 2020

Agronomy Journal

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Changes in agricultural management can potentially change the rate of C sequestration. The rain-fed agricultural areas of the Songnen Plain are China's main grain-producing areas, and this region has a temperate monsoon climate with an annual average temperature of 2.0−5.6 • C, annual average rainfall of 350−460 mm, and annual evaporation of 1,000−1,600 mm. In a short-term experiment (2014−2019), the effects of no-tillage (NT), no-tillage and subsoiling (NTS), rotary and ridge tillage (RT), rotary and ridge tillage and subsoiling (RTS), rotary and flatten tillage (FT), and rotary and flatten tillage and subsoiling (FTS) on alkaline meadow soil in the surface 0−30 cm of soil was investigated. Measurements after 5 yr showed that, under NT at 0-to 30-cm depth, the bulk density of soil, soil water content, and soil nutrient content significantly increased when compared with RT and FT. Soil organic carbon (SOC) stocks at 0−30 cm were increased by 2.23% (0.99 Mg ha −1) under NT, and the annual accumulation rate of SOC stocks under NT reached 0.20 Mg ha −1. Under RT and FT, SOC stocks decreased by 2.11% (0.94 Mg ha −1) and 2.18% (0.97 Mg ha −1), respectively, when compared with the beginning of the experiment. This indicates that NT, compared with RT and FT, reduces soil C loss and is conducive to the C sequestration. 1 INTRODUCTION Soil organic matter is an important component of soil health and influences nutrient cycling, plant health, and greenhouse gas emissions (Hoyle, Barton, Stefanova, & Murphy, 2016; Jin et al., 2018). However, minor changes in soil organic carbon (SOC) stocks could greatly affect atmospheric CO 2 concentrations (Wang et al., 2014).

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Meta-analysis on atmospheric carbon capture in Spain through the use of conservation agriculture

Cited by 170 publications

References 39 publications

Greenhouse gas emissions from conventional and organic cropping systems in Spain. II. Fruit tree orchards

Greenhouse gas emissions from conventional and organic cropping systems in Spain. II. Fruit tree orchards

The design of agri-environmental schemes: Farmers’ preferences in southern Spain

No‐tillage increased corn yields and carbon sequestration

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