新疆北部草地典型灌木的碳氮特征
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张静,刘耘华,盛建东,柴强,李瑞霞,赵丹
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Carbon and nitrogen traits of typical shrubs in grassland of northern Xinjiang, China
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Jing ZHANG,Yun-Hua LIU,Jian-Dong SHENG,Qiang CHAI,Rui-Xia LI,Dan ZHAO
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表6 不同科灌木地上部分C、N含量(平均值±标准偏差) |
Table 6 Shrub aboveground C and N contents in different shrub families (mean ± SD) |
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科 Family | n | 碳含量 C content (%) | CV | 氮含量 N content (%) | CV | C:N | CV | 柽柳科 Tamaricaceae | 76 | 42.84 ± 2.97d | 7 | 1.73 ± 0.38ab | 22 | 27.60 ± 6.48cd | 23 | 豆科 Leguminosae | 66 | 46.44 ± 2.63ab | 6 | 1.91 ± 0.45a | 23 | 26.76 ± 6.96d | 26 | 蒺藜科 Zygophyllaceae | 14 | 43.95 ± 3.49cd | 8 | 1.57 ± 0.40bc | 25 | 30.85 ± 7.86bcd | 25 | 藜科 Chenopodiaceae | 212 | 42.03 ± 4.80d | 11 | 1.50 ± 0.44cd | 29 | 32.24 ± 11.71bc | 36 | 蓼科 Polygonaceae | 17 | 46.46 ± 2.75ab | 6 | 1.21 ± 0.16e | 13 | 39.19 ± 4.38a | 11 | 麻黄科 Ephedraceae | 28 | 45.11 ± 2.94bc | 7 | 1.75 ± 0.41ab | 23 | 27.84 ± 7.16cd | 26 | 蔷薇科 Rosaceae | 62 | 47.43 ± 2.31a | 5 | 1.21 ± 0.17e | 14 | 40.97 ± 4.48a | 11 | 旋花科 Convolvulaceae | 13 | 42.18 ± 5.85d | 14 | 1.33 ± 0.31de | 23 | 33.55 ± 8.56b | 26 | 平均值 Average | | 43.77 ± 4.43 | 10 | 1.56 ± 0.45 | 27 | 31.78 ± 10.12 | 32 |
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