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Carbon sequestration by fruit trees--Chinese apple orchards as an example.

Wu T, Wang Y, Yu C, Chiarawipa R, Zhang X, Han Z, Wu L - PLoS ONE (2012)

Bottom Line: The field study showed that the trees reached the peak of C sequestration capability when they were 18 years old, and then the capability began to decline with age.Carbon emission derived from management practices would not be compensated through C storage in apple trees before reaching the mature stage.The net C sink in apple orchards in China ranged from 14 to 32 Tg C, and C storage in biomass from 230 to 475 Tg C between 1990 and 2010.

View Article: PubMed Central - PubMed

Affiliation: College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.

ABSTRACT
Apple production systems are an important component in the Chinese agricultural sector with 1.99 million ha plantation. The orchards in China could play an important role in the carbon (C) cycle of terrestrial ecosystems and contribute to C sequestration. The carbon sequestration capability in apple orchards was analyzed through identifying a set of potential assessment factors and their weighting factors determined by a field model study and literature. The dynamics of the net C sink in apple orchards in China was estimated based on the apple orchard inventory data from 1990s and the capability analysis. The field study showed that the trees reached the peak of C sequestration capability when they were 18 years old, and then the capability began to decline with age. Carbon emission derived from management practices would not be compensated through C storage in apple trees before reaching the mature stage. The net C sink in apple orchards in China ranged from 14 to 32 Tg C, and C storage in biomass from 230 to 475 Tg C between 1990 and 2010. The estimated net C sequestration in Chinese apple orchards from 1990 to 2010 was equal to 4.5% of the total net C sink in the terrestrial ecosystems in China. Therefore, apple production systems can be potentially considered as C sinks excluding the energy associated with fruit production in addition to provide fruits.

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Soil respiration rates in the observed months in the 5-, 18- and 22-year-old apple orchards during the observation period.
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pone-0038883-g007: Soil respiration rates in the observed months in the 5-, 18- and 22-year-old apple orchards during the observation period.

Mentions: Soil respiration from the 18-year-old orchard showed the strongest seasonal changes among the orchards, and two peaks in a year existed (Figure 7). We observed that the highest rate for the 5-year-old orchard occurred in spring and early summer, and that for the 22-year-old orchard occurred in the middle of summer. Based on the samples, annual soil respiration rates were 1.3±0.3, 1.6±0.6 and 1.2±0.5 kg C m−2 in the 5-, 18- and 22-year-old orchards, respectively.


Carbon sequestration by fruit trees--Chinese apple orchards as an example.

Wu T, Wang Y, Yu C, Chiarawipa R, Zhang X, Han Z, Wu L - PLoS ONE (2012)

Soil respiration rates in the observed months in the 5-, 18- and 22-year-old apple orchards during the observation period.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3376143&req=5

pone-0038883-g007: Soil respiration rates in the observed months in the 5-, 18- and 22-year-old apple orchards during the observation period.
Mentions: Soil respiration from the 18-year-old orchard showed the strongest seasonal changes among the orchards, and two peaks in a year existed (Figure 7). We observed that the highest rate for the 5-year-old orchard occurred in spring and early summer, and that for the 22-year-old orchard occurred in the middle of summer. Based on the samples, annual soil respiration rates were 1.3±0.3, 1.6±0.6 and 1.2±0.5 kg C m−2 in the 5-, 18- and 22-year-old orchards, respectively.

Bottom Line: The field study showed that the trees reached the peak of C sequestration capability when they were 18 years old, and then the capability began to decline with age.Carbon emission derived from management practices would not be compensated through C storage in apple trees before reaching the mature stage.The net C sink in apple orchards in China ranged from 14 to 32 Tg C, and C storage in biomass from 230 to 475 Tg C between 1990 and 2010.

View Article: PubMed Central - PubMed

Affiliation: College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.

ABSTRACT
Apple production systems are an important component in the Chinese agricultural sector with 1.99 million ha plantation. The orchards in China could play an important role in the carbon (C) cycle of terrestrial ecosystems and contribute to C sequestration. The carbon sequestration capability in apple orchards was analyzed through identifying a set of potential assessment factors and their weighting factors determined by a field model study and literature. The dynamics of the net C sink in apple orchards in China was estimated based on the apple orchard inventory data from 1990s and the capability analysis. The field study showed that the trees reached the peak of C sequestration capability when they were 18 years old, and then the capability began to decline with age. Carbon emission derived from management practices would not be compensated through C storage in apple trees before reaching the mature stage. The net C sink in apple orchards in China ranged from 14 to 32 Tg C, and C storage in biomass from 230 to 475 Tg C between 1990 and 2010. The estimated net C sequestration in Chinese apple orchards from 1990 to 2010 was equal to 4.5% of the total net C sink in the terrestrial ecosystems in China. Therefore, apple production systems can be potentially considered as C sinks excluding the energy associated with fruit production in addition to provide fruits.

Show MeSH