《Table 5Carbon storage of ecosystem component and percentage of the total in barren hill ecosystem》下

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《喀斯特风水林和荒山生态系统碳储量的研究（英文）》

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Lion Hill，Temple Hill and Laojie Hill were chosen to represent the holly hill study areas.A total of 27sample plots（20 m×30 m）were established along an elevational gradient of 50-80 m vertical distance.Within each plot，total tree height and diameter at breast height（dbh）were measured on all trees with dbh>2 cm.The aboveground biomass of trees were estimated with biomass equations published by Zhu et al（1995）for Guizhou karst forests（Table 1）.The underground biomass of trees were estimated by the root-shoot ratio（0.231 8）reported by Qi&Tang（2008）for Xishuangbanna karst forests.