Changes in soil organic carbon over 20 years after afforestation in semiarid SE Spain

Segura, Carmen; Jiménez, M.N.; Nieto, Olga María; Reyes, Francisco Bruno Navarro; Ondoño, Emilia Fernández

doi:10.1016/j.foreco.2016.09.035

Cited by 33 publications

(16 citation statements)

References 56 publications

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“…The accuracy of the model is depicted by Fig. 4 -histogram of differences of recorded data from suggested its content is only increasing, and, subsequently, the growth of SOC on afforested agricultural land is gradually documented with increasing age of forest stand and thus with increasing accumulation of upper-layer humus (Laganière et al 2009;Segura et al 2016).…”

Section: Resultsmentioning

confidence: 99%

“…Other conditions that may affect the accumulated carbon content in the upper-layer humus are: different forest management, previous land use, stand characteristics, pre-planting disturbance, soil clay content, thinning, fertilization, liming, forest fires and, to some extent, the climatic zone (Lal 2005;Schulp et al 2008;Laganière et al 2009;Vacet et al 2009Vacet et al , 2010Matějka et al 2010;Blanco-Canqui et al 2014;Grüneberg et al 2014;Segura et al 2016). These circumstances, however, were not taken into account in our generalized model, which is based on data already published, as we lack sufficient data for the Czech Republic.…”

Section: Resultsmentioning

confidence: 99%

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Carbon sequestration in soil following afforestation of former agricultural land in the Czech Republic

Cukor

Vacek

Linda

et al. 2017

Central European Forestry Journal

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Soil organic carbon (SOC) is a great component of the global carbon cycle and plays significant role in terms of climatic changes and agricultural land-use. An important management concern is the extent of SOC stocks sequestration when farmland is converted to forest stands. We have reviewed the literature about changes in SOC stock in relation to altitude and stand age and sought differences between former agricultural land and origin forest stands. Accumulation of SOC was monitored in 17 examples (41 samples) in 9 locations across the all Czech Republic with focus on the main tree species Norway spruce (Picea abies [L.] Karst.). Results showed a significant increase of SOC stock in an afforested farmland with increasing stand age. Another factor was the altitude. With increasing altitude, the carbon stock in our model gradually decreased. From the data analyzed comparing forest stand and former agricultural land, similar carbon sequestration was documented for both variants with higher SOC for forest stands. However, other conditions affecting SOC stock should be taken into consideration, especially silvicultural management, topography, disturbances, soil properties and cultivation. The general tendencies of SOC changes at the investigated sites are comparable to those in other studies across the Europe.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Carbon sequestration in soil following afforestation of former agricultural land in the Czech Republic

Cukor

Vacek

Linda

et al. 2017

Central European Forestry Journal

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“…Afforestation of degraded and unproductive agricultural areas has been proposed as effective actions to mitigate the impacts of climate change (IPCC, 2014). However, afforestations may produce beneficial, neutral, or even negative effects on the final C balance (Guo & Gifford, 2002;Nosetto, Jobbágy, & Paruelo, 2006;Vesterdal, Ritter, & Gundersen, 2002) being this final result especially conditioned by soil characteristics (Muñoz-Rojas et al, 2015;Segura, Jiménez, Nieto, Navarro, & Fernández-Ondoño, 2016), the planted species (Gao, Cheng, Ma, Zhao, & Su, 2014), and the previous land use of the afforested area (Laganière, Angers, & Paré, 2010;Lal, 2005). In general, reforestation actions promote an initial reduction of the amount of C stored in the soil, more pronounced in shallow horizons, as C inputs from litter are still low and decomposition is enhanced because site preparation implies alteration of soil horizons and new C-based substrates are susceptible to be mineralized and respired by microbial populations (Jandl et al, 2007;Paul, Polglase, Nyakuengama, & Khanna, 2002).…”

Section: Discussionmentioning

confidence: 99%

Carbon balance as affected by biosolid application in reforestations

Valdecantos

Fuentes

2018

Land Degrad Dev

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Soils of Mediterranean drylands are characterized by a low fertility and organic matter content because of past land use and disturbances regime. The restoration of these degraded lands faces at the same time problems related to water scarcity and the unpredictability of precipitations with problems with soil physical, chemical, and microbiological properties. Organic amendments may help to improve soil properties and, consequently, enhance planted seedling establishment and performance. In this study, we assessed the C balance of 3 Mediterranean areas planted with Pinus halepensis Mill. seedlings with different treatments of biosolid application. The assessment was conducted at different times after the establishment of treatments and the C dynamics are discussed. We considered 3 biosolid types (air‐dried, fresh sludge, and composted sludge) in application doses ranging from 10 to 320 Mg (d.w.) ha−1. We quantified basal area, pine biomass, biomass of spontaneous vegetation, litter, root density, and soil organic matter. All 3 experimental restoration studies improved restoration success in terms of basal area (ranging from 15% to 300%), especially in composted biosolid at 30 Mg (d.w.) ha−1, whereas litter and, especially, root biomass increased with all biosolid treatments and times since application. Soil organic C was higher in application doses above 30 Mg (dry weight) ha−1 due to the organic matter applied with the sludges. The increment in C sequestration rates associated to these restoration treatments ranged between 0.046 and 0.293 kg C m2 yr−1. These results confirm the suitability of organic amendments as restoration technique in Mediterranean degraded drylands.

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“…mechanical terracing, which has been used in some areas of Spain, is not thought to increase soil organic carbon (Garcia-Franco et al, 2014). Segura et al (2016) compared different soil-preparation techniques at a semi-arid site, reporting that they had a similar effect on carbon stocks in the medium-term. These authors suggest that because both soil carbon dynamics and input of organic matter take place very slowly in Mediterranean areas, evidence of changes may be difficult to detect in the short or medium-term.…”

Section: Afforestationmentioning

confidence: 99%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

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Aim of study: TTo review and acknowledge the value of carbon sequestration by forest management in the Mediterranean area. Material and methods:We review the main effects of forest management by comparing the effects of silvicultural systems (even-aged vs. uneven-aged stands, coppice systems, agroforestry systems), silvicultural options (thinning, rotation period, species composition), afforestation, harvesting, fire impact or effects of shrub layer on carbon sequestration in the Mediterranean area.Main results: We illustrate as forest management can clearly improve forest carbon sequestration amounts. We conclude that forest management is an effective way to maintain and enhance high carbon sequestration rates in order to cope with climate change and provision of ecosystem services. We also think that although much effort has been put into this topic research, there are still certain gaps that must be dealt with to increase our scientific knowledge and in turn transfer this knowledge to forest practitioners in order to achieve sustainable management aimed at mitigating climate change.Research highlights: It is important to underline the importance of forests in the carbon cycle as this role can be enhanced by forest managers through sustainable forest management. The effects of different management options or disturbances can be critical as regards mitigating climate change. Understanding the effects of forest management is even more important in the Mediterranean area, given that the current high climatic variability together with historical human exploitation and disturbance events make this area more vulnerable to the effects of climate change.Additional keywords: global carbon cycle; forest sink; forest mitigation strategies; carbon sequestration potential; climate change mitigation; Mediterranean forests.

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Changes in soil organic carbon over 20 years after afforestation in semiarid SE Spain

Cited by 33 publications

References 56 publications

Carbon sequestration in soil following afforestation of former agricultural land in the Czech Republic

Carbon sequestration in soil following afforestation of former agricultural land in the Czech Republic

Carbon balance as affected by biosolid application in reforestations

Forest management and carbon sequestration in the Mediterranean region: A review

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