Spatial distribution characteristics of soil organic carbon density in a tropical mountain rainforest of Jianfengling, Hainan Island, China

Spatial distribution characteristics of soil organic carbon density in a tropical mountain rainforest of Jianfengling, Hainan Island, China

Forest soil organic carbon ( SOC) is the main component of the terrestrial carbon reservoir, and plays a crucial role in the Earth's carbon cycle. This study aimed to quantify the spatial heterogeneity and distribution patterns of SOC density. The study was conducted in a 60 hm2 forest plot in...

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Veröffentlicht in:Sheng tai xue bao 2015-01, Vol.35 (23), p.7878-7886
Hauptverfasser: Guo, Xiaowei, Luo, Tushou, Li, Yide, Xu, Han, Chen, Dexiang, Lin, Mingxian, Zhou, Zhang, Yang, Huai
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container_start_page 7878
container_title Sheng tai xue bao
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creator Guo, Xiaowei
Luo, Tushou
Li, Yide
Xu, Han
Chen, Dexiang
Lin, Mingxian
Zhou, Zhang
Yang, Huai
description Forest soil organic carbon ( SOC) is the main component of the terrestrial carbon reservoir, and plays a crucial role in the Earth's carbon cycle. This study aimed to quantify the spatial heterogeneity and distribution patterns of SOC density. The study was conducted in a 60 hm2 forest plot in a tropical mountain rainforest of Jianfengling, Hainan Island, China, using field investigation, laboratory analysis, and geostatistical methods. The results showed that the mean SOC density at different soil profile depths (A [0-10 cm], B [10-30 cm], and C [30-60 cm]) was 2.699, 2.782, 2.434 kg/m2, respectively. The differences for A versus C and, B versus C layers were statistically significant (P < 0.05), but there was no significant difference between A and B layers ( P > 0.05) . Cross-validation results showed that the most fitted models for SOC density at different layers was exponential for A and spherical for B and C. The ranges of SOC density were 54.2 m, 70.9 m, and 97.2 m for A, B, and C, respectively, while
doi_str_mv 10.5846/stxb201404180761
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title Spatial distribution characteristics of soil organic carbon density in a tropical mountain rainforest of Jianfengling, Hainan Island, China
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