Land use change effects on ecosystem carbon balance: From agricultural to hybrid poplar plantation

Arevalo, Carmela B.M.; Bhatti, Jagtar S.; Chang, Scott X.; Sidders, Derek

doi:10.1016/j.agee.2011.03.013

Cited by 121 publications

(98 citation statements)

References 41 publications

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“…All these values lay in the range found by Arevalo et al (2011), i.e. −77 and −4756 g CO 2 m −2 yr −1 relative to a 2-year-old and 9-year-old poplar SRC respectively.…”

Section: Discussionsupporting

confidence: 68%

“…Several studies (Grigal and Berguson, 1998;Price et al, 2009) confirmed that converting agricultural land to SRC resulted in an initial release of SOC due to SRC establishment and then in a slow and continuous accumulation of SOC due to vegetation activity and wood encroachment (Arevalo et al, 2011). Despite the deep tillage during SRC establishment and despite the fact that the REF site was ploughed every year at different depths, a gradient decreasing with depth in the C distribution of the vertical profile was evident at the three sites (not shown).…”

Section: Discussionmentioning

confidence: 99%

“…8), meaning that the yearly SOC accumulation after poplar plantation was 78 ± 25 g C m −2 and the initial value (t = 0) was 857 ± 139 g C m −2 , 746 ± 858 g C m −2 lower than the REF value and corresponding to the SOC content loss due to the installation of the SRC. As this loss was a positive flux occurring only once in a LUC at the installation of the cuttings (Arevalo et al, 2011) and as the expected lifespan of the SRC site was 12 years, the value considered for the 24-month GHG budget was 1/6, corresponding to 124 ± 143 g C m −2 (455 ± 524 g CO 2 m −2 ). …”

Section: Soc Content Changesmentioning

confidence: 99%

“…Studies on the climate mitigation potential of poplar cultivations constitute an important tool in supporting energy and environmental policies on different scales. In recent years researchers have approached poplar SRCs from different perspectives: ecological (Jaoudé et al, 2011;Zhou et al, 2013), economic (Strauss and Grado, 1997;Mitchell et al, 1999;Ceulemans, 2012, 2013), and related to energy production and different environmental aspects (Jungmeier and Spitzer, 2001;Cherubini et al, 2009;Davis et al, 2009;Nassi o Di Nasso et al, 2010;Arevalo et al, 2011;Don et al, 2012;Dillen et al, 2013;. However, these studies often used different approaches, making it difficult to compare their results (Migliavacca et al, 2009;Djomo et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Greenhouse gas balance of cropland conversion to bioenergy poplar short-rotation coppice

et al. 2016

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Abstract. The production of bioenergy in Europe is one of the strategies conceived to reduce greenhouse gas (GHG) emissions. The suitability of the land use change from a cropland (REF site) to a short-rotation coppice plantation of hybrid poplar (SRC site) was investigated by comparing the GHG budgets of these two systems over 24 months in Viterbo, Italy. This period corresponded to a single rotation of the SRC site. The REF site was a crop rotation between grassland and winter wheat, i.e. the same management of the SRC site before the conversion to short-rotation coppice. Eddy covariance measurements were carried out to quantify the net ecosystem exchange of CO 2 (F CO 2 ), whereas chambers were used to measure N 2 O and CH 4 emissions from soil. The measurements began 2 years after the conversion of arable land to SRC so that an older poplar plantation was used to estimate the soil organic carbon (SOC) loss due to SRC establishment and to estimate SOC recovery over time. Emissions from tractors and from production and transport of agricultural inputs (F MAN ) were modelled. A GHG emission offset, due to the substitution of natural gas with SRC biomass, was credited to the GHG budget of the SRC site. Emissions generated by the use of biomass (F EXP ) were also considered. Suitability was finally assessed by comparing the GHG budgets of the two sites. CO 2 uptake was 3512 ± 224 g CO 2 m −2 at the SRC site in 2 years, and 1838 ± 107 g CO 2 m −2 at the REF site. F EXP was equal to 1858 ± 240 g CO 2 m −2 at the REF site, thus basically compensating for F CO 2 , while it was 1118 ± 521 g CO 2 m −2 at the SRC site. The SRC site could offset 379.7 ± 175.1 g CO 2 eq m −2 from fossil fuel displacement. Soil CH 4 and N 2 O fluxes were negligible. F MAN made up 2 and 4 % in the GHG budgets of SRC and REF sites respectively, while the SOC loss was 455 ± 524 g CO 2 m −2 in 2 years. Overall, the REF site was close to neutrality from a GHG perspective (156 ± 264 g CO 2 eq m −2 ), while the SRC site was a net sink of 2202 ± 792 g CO 2 eq m −2 . In conclusion the experiment led to a positive evaluation from a GHG viewpoint of the conversion of cropland to bioenergy SRC.

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“…All these values lay in the range found by Arevalo et al (2011), i.e. −77 and −4756 g CO 2 m −2 yr −1 relative to a 2-year-old and 9-year-old poplar SRC respectively.…”

Section: Discussionsupporting

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Soc Content Changesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Greenhouse gas balance of cropland conversion to bioenergy poplar short-rotation coppice

et al. 2016

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“…Land use conversion results in dynamic changes in soil processes (Arevalo et al, 2011). For example, Alberti et al (2010) showed that there was a net loss of carbon in terms of net biome production 2 years after conversion from corn to alfalfa, but this difference decreased over the next few years (Robertson et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils

Dai

Yuan

Wang

2016

CATENA

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a b s t r a c t a r t i c l e i n f oSoil microorganisms are the main drivers of all of the biochemical processes that occur in soils. Land-use conversion, a common occurrence driven by market economy, changes plant species and the associated management strategies, thus significantly influences soil microbial communities. However, few studies have been conducted to disentangle the effect of the alteration of plant species from that of soil environment during the initial years of conversion. In this study, the effect of land-use conversion from double rice cropping (RR) to maize-maize (MM) and soybean-peanut (SP) double cropping systems on soil physical and chemical properties and microbial communities was studied two years after the conversion in southern China. The results showed that land use conversion significantly changed the soil properties, microbial communities and microbial biomass. The soil water content decreased significantly by 26.3%, and the pH decreased by 0.50 and 0.52 for MM and SP, respectively, compared with RR. Soil inorganic N also decreased significantly by 55% after the conversion to drained fields. The total phospholipid fatty acids (PLFAs), and bacterial, G+, G− and actinomycetic PLFAs decreased significantly after the conversion. No significant differences were found in the soil properties, microbial communities and microbial biomass between the converted MM and SP. Our results indicated that the changes of anaerobic to aerobic conditions, rather than of crop type, induced the variations in the soil properties and microbial communities during the initial years after conversion from paddy soils to drained soils. In particular, soil pH was the key factor that regulated the variations in the soil microbial communities after conversion.

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Can Carbon in Bioenergy Crops Mitigate Global Climate Change?

Jaradat

2013

Climate Change and Plant Abiotic Stress Tolerance

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Different forms of carbon (C) cycle continuously through several pools in natural and managed ecosystems and spheres. Carbon's recent "commodification," as a negative environmental externality, has rendered it a "scarce" and "tradable" element. Although C supply in nature is not limited, energy is required to make it available as a plant nutrient, assimilate it in plant tissues, and sequester it as temporary or recalcitrant C in soils. Human demand for C-based energy and plantfixed C has accelerated, and altered its global cycle, raised its atmospheric content, contributed to climate change through global warming, and impacted several provisioning, regulating, and supporting ecosystem services. Agroecosystems are both sources and sinks of C. In a carbon dioxide-constrained world, plant-fixed and sequestered C in natural and managed ecosystems has a potential role in mitigating climate change, providing C-neutral and renewable bioenergy, and positively affecting ecosystem services. Due to the intricacies of the complex, interconnected biogeochemical cycles involving C, nitrogen, and water in which soils play an important role, bioenergy crops do not provide an easy solution to climate change mitigation, they may contribute to it. This chapter presents a critical review assessing the state of knowledge, and exploring opportunities and challenges of the role of C in bioenergy crops in mitigating global climate change, while sustainably providing other ecosystem services.

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Land use change effects on ecosystem carbon balance: From agricultural to hybrid poplar plantation

Cited by 121 publications

References 41 publications

Greenhouse gas balance of cropland conversion to bioenergy poplar short-rotation coppice

Greenhouse gas balance of cropland conversion to bioenergy poplar short-rotation coppice

Changes of anaerobic to aerobic conditions but not of crop type induced bulk soil microbial community variation in the initial conversion of paddy soils to drained soils

Can Carbon in Bioenergy Crops Mitigate Global Climate Change?

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