Carbon accumulation and distribution in Pinus massoniana and Cunninghamia lanceolata mixed forest ecosystem in Daqingshan, Guangxi, China

Kang, Bing; Liu, Shirong; Zhang, Guangjun; Chang, Jun; Yan, Wen; Ma, Jiangming; Wu, Hao

doi:10.1016/s1872-2032(06)60024-3

Cited by 26 publications

(27 citation statements)

References 6 publications

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“…In addition to the vegetation biomass C, soil contains the world's largest terrestrial active C pool, which plays a major role in the global carbon cycle [27]. In our study, mineral soil C content increased exponentially from the five-year stand to the 15-year stand and then dropped sharply from the 19-year stand to the 42-year stand, clearly indicating the absence of age effect on mineral soil carbon concentrations and storage ( Figure 1g); about 67.97% of the mean total mineral soil C content across the different stand ages in the chronosequence was sequestered in the upper soil horizon (0-30-cm) depth, higher than the 49.22% reported by Kang et al [48] for the 0-20-cm upper mineral soil horizon profile, but lower than the findings of Cao et al [56], who reported an average mean of 70.0% C content sequestered at the 20-cm upper mineral soil horizon. Our average mean total mineral soil C sequestered in the 0-60-cm depth was 216.12 t· ha −1 , closer to the findings of Zhou et al [57], who reported a mean soil C content storage of 193.55 t· ha −1 in the Chinese forests, which is about 3.4-times that of vegetation, but lower than the findings of Gao et al [58], who reported a mean value of 411 t· ha −1 at the profile of 0-100-cm in a…”

Section: Discussionmentioning

confidence: 63%

Biomass Stock and Carbon Sequestration in a Chronosequence of Pinus massoniana Plantations in the Upper Reaches of the Yangtze River

Justine

Yang

et al. 2015

Forests

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Planted forest plays a significant role in carbon sequestration and climate change mitigation; however, little information has been available on the distribution patterns of carbon pools with stand ages in Pinus massoniana Plantations. We investigated the biomass stock and carbon sequestration across a chronosequence (3-, 5-, 7-, 9-, 12-, 15-, 19-, 29-, 35-and 42-year) of stands with the main objectives: (1) to determine the biomass and carbon stock of the forest ecosystem; and (2) to identify factors influencing their distribution across the age series. Simple random sampling was used for collecting field data in the ten (10) stand ages. Three 20 × 20 m standard plots were laid out in February 2015 across the chronosequence. The diameter at breast height (DBH) and tree height (H) of each tree within each plot were measured using calipers and height indicator. Sub-plots of 2 × 2 m were established in each main plot for collecting soil samples at a 0-30-and 30-60-cm depth. Plantation biomass increased with increasing stand ages, ranging from 0.84 tonnes per hectare (t· ha −1 ) in the three-year stand to 252.35 t· ha −1 in the 42-year stand.The aboveground biomass (AGB) contributed 86.51%; the maximum value is 300-times the minimum value. Carbon concentrations and storage in mineral soil decreased with

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Section: Discussionmentioning

confidence: 63%

Biomass Stock and Carbon Sequestration in a Chronosequence of Pinus massoniana Plantations in the Upper Reaches of the Yangtze River

Justine

Yang

et al. 2015

Forests

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“…The R/S ratio mean value of 0.23 observed in this study corresponds to the standard value of 0.23 reported for coniferous species [ Kurz et al ., ]. However, the shrub layer had shown a considerably higher R/S ratio (0.69, Table S6) compared to 0.46 reported by [ Kang et al ., ] which is related to the presence of different shrub species in the investigated forest biomes that all have different growth requirements, water holding capacity, and response mechanisms to stress and other disturbances. In addition, the roots in the shrub layer are hidden belowground structures compared to the aboveground structures that are susceptible to trampling during the litter collection from the forest floor.…”

Section: Discussionmentioning

confidence: 93%

“…Majority of the researchers considered the global C fraction of 47% provided by IPCC [] for converting forest vegetation biomass into C. However, in a recent review by Sean and Martin [], results revealed that the assumed C content of 50% of tree biomass is not accurate. In this study, the tree components C contents range from 45.0% to 55.5% with an average mean value of 51.6% which was within the range of 46.8–58.6 reported for a masson pine plantation [ Kang et al ., ] but varied slightly from the global mean value of 50.8 reported for coniferous forests of all biomes [ Sean and Martin , ]. The above insignificant difference is attributable to the analysis method, stand age, pedoclimatic conditions, and origin [ Bert and Danjon , ].…”

Section: Discussionmentioning

confidence: 93%

Dynamics of biomass and carbon sequestration across a chronosequence of masson pine plantations

Justine

Yang

et al. 2017

JGR Biogeosciences

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The changes of forest biomass stock and carbon (C) sequestration with stand ages at fixed intervals in the different vegetation components remain unknown. Using the masson pine (Pinus massoniana) relative growth equation, biomass carbon stocks were obtained in four masson pine plantations at 12 year intervals (3 years, 15 years, 27 years, and 39 years). Meanwhile, the changes in soil organic C (SOC) stock with stand ages were also estimated. The biomass stock varied from 1.41 to 265.33 Mg ha−1, 6.87 to 7.49 Mg ha−1, and 2.66 to 4.86 Mg ha−1 in the tree, shrub, and herb layers. Carbon concentrations in plant tissues were 51.6%, 39.0%, and 42.2% in the tree, shrub, and herb layers. The aboveground biomass C contributed 81.7% and 60.5% in the tree and shrub layers, and the root to shoot (R/S) ratio of the tree and shrub layer biomass averaged 0.23 and 0.69. Biomass C stock increased significantly (p < 0.05) with forest age, whereas the changes in biomass accumulation rate decreased significantly (p < 0.05). The annual net C sequestration increased with age from 0.47 to 9.83 Mg ha−1 yr−1 in the tree layer but decreased in the shrub and herb layers. The SOC content decreased with soil depth but increased with age, whereas the SOC stock increased with depth and age. However, the total ecosystem C stock increased significantly (p < 0.05) with stand age suggesting that age is the controlling factor of photosynthetic and biological processes and thus changes in biomass accumulation and C sequestration in masson pine plantations. Therefore, in‐depth studies are needed for continuous monitoring of the changes in nutrients and elements cycling with stand ages in this forest ecosystem.

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“…Past studies suggest that the carbon storage in litter is relatively small and stable in general, accounting for only 1-4% of the total forest carbon storage (Fang et al 2002;Zhong 2009;Zhu et al 2010).…”

Section: Certainty Vs Uncertaintymentioning

confidence: 99%

Changes in carbon density for three old-growth forests on Changbai Mountain, Northeast China: 1981–2010

Zhou

Dai

Wang³

et al. 2011

Annals of Forest Science

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Carbon accumulation and distribution in Pinus massoniana and Cunninghamia lanceolata mixed forest ecosystem in Daqingshan, Guangxi, China

Cited by 26 publications

References 6 publications

Biomass Stock and Carbon Sequestration in a Chronosequence of Pinus massoniana Plantations in the Upper Reaches of the Yangtze River

Biomass Stock and Carbon Sequestration in a Chronosequence of Pinus massoniana Plantations in the Upper Reaches of the Yangtze River

Dynamics of biomass and carbon sequestration across a chronosequence of masson pine plantations

Changes in carbon density for three old-growth forests on Changbai Mountain, Northeast China: 1981–2010

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