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5 不同科灌木茎C、N含量(平均值±标准偏差) |
Table 5 Stem 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 | 45.76 ± 2.4bcd | 5 | 1.37 ± 0.2bc | 15 | 34.35 ± 6.43cd | 19 | 豆科 Leguminosae | 66 | 47.14 ± 2.48ab | 5 | 1.62 ± 0.29a | 18 | 30.26 ± 6.58d | 22 | 蒺藜科 Zygophyllaceae | 14 | 45.82 ± 2.07abcd | 5 | 1.36 ± 0.22bcd | 17 | 34.66 ± 6.29bcd | 18 | 藜科 Chenopodiaceae | 212 | 44.91 ± 3.94cd | 9 | 1.29 ± 0.38cde | 30 | 38.13 ± 13.43abc | 35 | 蓼科 Polygonaceae | 17 | 46.76 ± 2.60abc | 6 | 1.18 ± 0.18de | 15 | 40.41 ± 5.28ab | 13 | 麻黄科 Ephedraceae | 28 | 44.99 ± 4.33cd | 10 | 1.52 ± 0.44ab | 29 | 32.20 ± 9.40d | 29 | 蔷薇科 Rosaceae | 62 | 47.57 ± 2.37a | 5 | 1.11 ± 0.19e | 17 | 43.56 ± 5.26a | 12 | 旋花科 Convolvulaceae | 13 | 44.10 ± 2.24d | 5 | 1.27 ± 0.17cde | 14 | 35.31 ± 5.54bcd | 16 | 平均值 Average | | 45.81 ± 3.43 | 7 | 1.34 ± 0.35 | 26 | 36.77 ± 10.78 | 29 |
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