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西南地区草地群落灌木植物盖度对生态系统碳库的影响
薛晶月1,2,王丽华3,谢雨1,高景1,2,贺俊东1,2,吴彦1,*()
Effect of shrub coverage on grassland ecosystem carbon pool in southwestern China
XUE Jing-Yue1,2,WANG Li-Hua3,XIE Yu1,GAO Jing1,2,HE Jun-Dong1,2,WU Yan1,*()

图2. 西南地区不同灌木植物盖度草地群落的土壤碳库。图中的数值为平均值±标准误差(I, II, n = 18; III, n = 5)。I、II、III分别代表无灌木植物草地群落、低灌木植物盖度草地群落和高灌木植物盖度草地群落。不同大写字母表示0-100 cm的土壤碳库差异显著(p < 0.05), 不同小写字母表示不同土层的碳库差异显著(p < 0.05)。

Fig. 2. Soil carbon pool in grassland community with different shrub coverage in southwestern China. I, II, and III represent no shrub grassland, low shrub coverage grassland, and high shrub coverage grassland, respectively. The data are the means ± SE (I, II, n = 18; III, n = 5). Different uppercase letters indicate that the soil carbon pool at 0-100 cm was significantly different among different shrub coverage grassland communities (p < 0.05), and different lowercase letters indicate significant differences in the carbon pool at different soil layers (p < 0.05).