Chinese fir is one of the largest distributions of commercial forest plantation in South China. In this study, we chose the different regeneration patterns of Chinese fir for our researches, the results showed differe...Chinese fir is one of the largest distributions of commercial forest plantation in South China. In this study, we chose the different regeneration patterns of Chinese fir for our researches, the results showed different regeneration patterns affected both the quantity and quality of soil organic carbon. clear cutting followed by different regeneration in old-growth Chinese fir decreased the quantity of soil organic carbon both in artificial regeneration forest and natural regeneration forest, and both of them were significantly different with the old-growth Chinese fir forest （p〈0.05）. The concentrations of soil organic carbon（SOC） and particulate organic carbon（POC） in natural regeneration forest were higher than those in artificial regeneration forest, and the difference was significant in the 0-5 cm layer （p〈0.05）. Different regeneration patterns decreased forest SOC storage. Compared with the old-growth Chinese fir, SOC storage in 0-100 cm layer decreased by 7.09% and 13.27% in natural regeneration forest and artificial regeneration forest respectively, and the differences were both significant （p〈0.05）. In addition, SOC storage in 0-100 cm layer of natural regeneration forest was 7.13% higher than that in artificial regeneration forest.展开更多
基金Acknowledgements： This work is supported by National Natural Science Foundation of China （No. 30571488） and Natural Science Foundation of Fujian （No. 2007J0121）. The School of Geographical Science, Fujian Normal University is also thanked.
文摘Chinese fir is one of the largest distributions of commercial forest plantation in South China. In this study, we chose the different regeneration patterns of Chinese fir for our researches, the results showed different regeneration patterns affected both the quantity and quality of soil organic carbon. clear cutting followed by different regeneration in old-growth Chinese fir decreased the quantity of soil organic carbon both in artificial regeneration forest and natural regeneration forest, and both of them were significantly different with the old-growth Chinese fir forest （p〈0.05）. The concentrations of soil organic carbon（SOC） and particulate organic carbon（POC） in natural regeneration forest were higher than those in artificial regeneration forest, and the difference was significant in the 0-5 cm layer （p〈0.05）. Different regeneration patterns decreased forest SOC storage. Compared with the old-growth Chinese fir, SOC storage in 0-100 cm layer decreased by 7.09% and 13.27% in natural regeneration forest and artificial regeneration forest respectively, and the differences were both significant （p〈0.05）. In addition, SOC storage in 0-100 cm layer of natural regeneration forest was 7.13% higher than that in artificial regeneration forest.
