期刊论文详细信息
Carbon Balance and Management
Ecosystem services in vineyard landscapes: a focus on aboveground carbon storage and accumulation
M. G. Vaghti1  J Medellín-Azuara1  J. H. Viers2  J. A. Morandé2  J. N. Williams3 
[1] Pacific Agroecology LLC, 95616, Davis, CA, USA;Pacific Agroecology LLC, 95616, Davis, CA, USA;Department of Civil and Environmental Engineering, University of California, Merced, USA;Pacific Agroecology LLC, 95616, Davis, CA, USA;Department of Environmental Science and Policy, University of California, Davis, CA, USA;
关键词: Biodynamic farming;    Carbon storage rate;    Climate mitigation;    Grape vine;    Organic farming;    Regenerative agriculture;    Vegetation buffer;    Wildland conservation;    Woody biomass;   
DOI  :  10.1186/s13021-020-00158-z
来源: Springer
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【 摘 要 】

BackgroundOrganic viticulture can generate a range of ecosystem services including supporting biodiversity, reducing the use of conventional pesticides and fertilizers, and mitigating greenhouse gas emissions through long-term carbon (C) storage. Here we focused on aboveground C storage rates and accumulation using a one-year increment analysis applied across different winegrape varietals and different-aged vineyard blocks. This produced a chronosequence of C storage rates over what is roughly the productive lifespan of most vines (aged 2–30 years). To our knowledge, this study provides the first estimate of C storage rates in the woody biomass of vines. Additionally, we assessed C storage in wildland buffers and adjacent oak-dominated habitats over a 9-year period.ResultsCarbon storage averaged 6.5 Mg/Ha in vines. We found the average annual increase in woody C storage was 43% by mass. Variation correlated most strongly with vine age, where the younger the vine, the greater the relative increase in annual C. Decreases in C increment rates with vine age were more than offset by the greater overall biomass of older vines, such that C on the landscape continued to increase over the life of the vines at 18.5% per year on average. Varietal did not significantly affect storage rates or total C stored. Carbon storage averaged 81.7 Mg/Ha in native perennial buffer vegetation; we found an 11% increase in mass over 9 years for oak woodlands and savannas.ConclusionsDespite a decrease in the annual rate of C accumulation as vines age, we found a net increase in aboveground C in the woody biomass of vines. The results indicate the positive role that older vines play in on-farm (vineyard) C and overall aboveground accumulation rates. Additionally, we found that the conservation of native perennial vegetation as vineyard buffers and edge habitats contributes substantially to overall C stores. We recommend that future research consider longer time horizons for increment analysis, as this should improve the precision of C accumulation rate estimates, including in belowground (i.e., soil) reservoirs.

【 授权许可】

CC BY   

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