Changes in soil carbon and nutrient pools along a chronosequence of poplar plantations in the Columbia Plateau, Oregon, USA

Sartori, Fábio; Lal, Rattan; Ebinger, M. H.; Eaton, James A.

doi:10.1016/j.agee.2007.01.026

Cited by 164 publications

(110 citation statements)

References 86 publications

(46 reference statements)

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“…In a recent meta-analysis, Berthrong et al (2009) reported that Eucalyptus and Pinus plantations induced a strong and moderate acidification, respectively. A general decrease of pH was also observed in afforestations of a never-tilled soil or grasslands (Ross et al, 1999;Chen et al, 2000;Sartori et al, 2007). Consistently, Guo and Han (2008) reported significant decreases of pH at 0-10 cm and at 10-20 cm soil depth due to soil use conversion based on a 50-year-old Populus davidiana plantation.…”

Section: Chemical Parameterssupporting

confidence: 55%

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Bene

Pellegrino²,

Tozzini³

et al. 2011

Ital J Agronomy

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In the last decade, the change of energy concept induced by global warming and fossil fuel depletion together with the advances in agriculture towards a multifunctional and a more sustainable use of rural areas promoted the development of biomass crops. In this regard, Populus is largely utilised in short-rotation forestry (SRF), as it is known to be a fast-growing tree, producing large yields and having a high energy potential. Most studies focused on economic-productive and energetic aspects of Populus plantations, whereas their impact on soil quality and health have been poorly investigated. In this study, the main soil chemical parameters, microbial biomass and activity were assessed aiming at evaluating the impact of Populus SRF under one, two and three-year cutting cycles (T1, T2 and T3) in comparison with an intensive food cropping system (wheat-soybean rotation, WS). In addition, arbuscular mycorrhizal (AM) fungal inoculum potential was measured using root colonisation (RC) and number of entry points (EP). In the 0-10 cm soil depth, pH, phosphorus (P), total nitrogen (N) and soil organic carbon (SOC) were significantly affected by the management. In comparison with WS, Populus SRF treatments produced significant pH decreases together with N and SOC increases, these last ones ranging from 11% to 34% and from 21% to 57%, respectively. Under T3 soil pH decreased of 0.25 units, while P, N and SOC increased of 10%, 34% and 57%, respectively, in comparison with WS. Microbial biomass and soil respiration under SRF showed also mean increases of 71% and 17%, respectively. Under SRF treatments, Lolium perenne, commonly observed in all field plots, was more than twofold colonised by AM fungi in comparison with WS, while the number of EP, observed on Lactuca sativa used as a test plant, showed values ranging from 8 to 21 times higher. The present study shows the potential of a Populus SRF to improve soil chemical, biochemical and biological quality parameters in comparison with an intensive food cropping system.

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Section: Chemical Parameterssupporting

confidence: 55%

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Bene

Pellegrino²,

Tozzini³

et al. 2011

Ital J Agronomy

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show abstract

“…Studies of monocultures have suggested that soil organic carbon stocks in the upper soil layer fluctuate in the early stage of afforestation until reaching a new equilibrium that depends on the rates of litter input and decomposition Tremblay et al, 2006;Sartori et al, 2007). The soil nitrogen stock increases with increasing stand age in the upper soil layer because of cumulative biological fixation, litterfall, recycling from deeper mineral soil via root mortality and even atmospheric N deposition (Hume et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Accumulation of soil organic C and N in planted forests fostered by tree species mixture

2017

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Abstract. With the increasing trend of converting monocultures into mixed forests, more and more studies have been carried out to investigate the admixing effects on tree growth and aboveground carbon storage. However, few studies have considered the impact of mixed forests on belowground carbon sequestration, particularly changes in soil carbon and nitrogen stocks as a forest grows. In this study, paired pure Pinus massoniana plantations, Cinnamomum camphora plantations and mixed Pinus massoniana-Cinnamomum camphora plantations at ages of 10, 24 and 45 years were selected to test whether the mixed plantations sequestrate more organic carbon (OC) and nitrogen (N) in soils and whether this admixing effect becomes more pronounced with stand ages. The results showed that tree species identification, composition and stand age significantly affected soil OC and N stocks. The soil OC and N stocks were the highest in mixed Pinus-Cinnamomum stands compared to those in counterpart monocultures with the same age in the whole soil profile or specific soil depth layers (0-10, 10-20 and 20-30 cm) for most cases, followed by Cinnamomum stands and Pinus stands with the lowest. These positive admixing effects were mostly nonadditive. Along the chronosequence, the soil OC stock peaked in the 24-year-old stand and was maintained as relatively stable thereafter. The admixing effects were also the highest at this stage. However, in the topsoil layer, the admixing effects increased with stand ages in terms of soil OC stocks. When comparing mixed Pinus-Cinnamomum plantations with corresponding monocultures within the same age, the soil N stock in mixed stands was 8.30, 11.17 and 31.45 % higher than the predicted mean value estimated from counterpart pure species plantations in 10-, 24-and 45-year-old stands, respectively. This suggests that these admixing effects were more pronounced along the chronosequence.

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“…Investigaciones previas han demostrado en plantaciones Figura 2 -Promedios para los efectos significativos de contenido de carbono (Mg ha -1 ) en las todas las densidades (5.000, 7.500 y 10.000 árboles ha -1 ) para todas la especies (Acacia melanoxylon, Eucalyptus globulus y E. nitens) a las profundidades 0-20 y 20-40 cm, en el sitio de suelos arenales. dendroenergéticas aumentos de carbono a nivel de suelo de hasta 1,6 Mg C ha -1 año -1 , atribuyendo los aumentos en el carbono del suelo también al rápido crecimiento de los cultivos dendroenergéticos (SARTORI et al, 2007).…”

Section: Discussionunclassified

“…Sin embargo, se ha observado que la remoción de residuos o árboles completos, afecta negativamente los rendimientos (MAFRA et al, 2008) de plantaciones en el corto y mediano plazo (5-30 años), en áreas donde el crecimiento es limitado por nitrógeno (STUPAK et al, 2007) o en sitios con reservas bajas de nutrientes (MAFRA et al, 2008). Debe considerarse también, que en estos cultivos, se han observado altas correlaciones entre los reservorios de N del suelo y los niveles de C entre los 0 y 30 cm de profundidad (SARTORI et al, 2007).…”

Section: Introductionunclassified

Efecto de plantaciones dendroenergéticas en el carbono a nivel de suelo, en dos suelos contrastantes de la región de Biobío, Chile

et al. 2013

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Changes in soil carbon and nutrient pools along a chronosequence of poplar plantations in the Columbia Plateau, Oregon, USA

Cited by 164 publications

References 86 publications

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Accumulation of soil organic C and N in planted forests fostered by tree species mixture

Efecto de plantaciones dendroenergéticas en el carbono a nivel de suelo, en dos suelos contrastantes de la región de Biobío, Chile

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