Tree size and age induced stem carbon content variations cause an uncertainty in forest carbon stock estimation
- 1Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
- 2College of Life Sciences, Capital Normal University, Beijing 100048, China
- 1Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
- 2College of Life Sciences, Capital Normal University, Beijing 100048, China
Abstract. Stem carbon (C) content is widely used to present tree C content to estimate forest C stocks. However, size- and age-dependent changes in tree stem C content are still unclear. Based on 576 tree size (expressed by diameter at breast height (DBH) and biomass), age and C content data, our results showed that C content varied significantly among organs, and the mean value of C content for bark, branch, leaf, reproductive organ, root and stem was 48.4 %, 49.2 %, 49.6 %, 50.1 %, 48.8 %, 49.7 %, respectively. C content of stem was significantly correlated with that of leaf, branch and root, while showed no relationship with that of bark and reproductive organ. With the increasing tree size and age, stem C content showed increasing trends. Using stem C content as tree C content could produce an error of -2.49%−5.87% in the estimations of forest C stock. Thus, it is necessary to consider tree organ C content of stand in estimating forest C stock.
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Suhui Ma et al.
Interactive discussion


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RC1: 'Referee comments', Anonymous Referee #1, 14 May 2019
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AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
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AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
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RC2: 'Review', Anonymous Referee #2, 15 May 2019
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AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
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AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
Interactive discussion


-
RC1: 'Referee comments', Anonymous Referee #1, 14 May 2019
-
AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
-
AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
-
RC2: 'Review', Anonymous Referee #2, 15 May 2019
-
AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
-
AC1: 'Final response to comments', Suhui Ma, 10 Jul 2019
Suhui Ma et al.
Suhui Ma et al.
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