新疆北部草地典型灌木的碳氮特征

张静,刘耘华,盛建东,柴强,李瑞霞,赵丹

Carbon and nitrogen traits of typical shrubs in grassland of northern Xinjiang, China

Jing ZHANG,Yun-Hua LIU,Jian-Dong SHENG,Qiang CHAI,Rui-Xia LI,Dan ZHAO

表2 北疆草地典型灌木叶、枝、茎C、N含量(平均值±标准偏差)

Table 2 The contents of C and N in leaves, branches and stems in typical shrubs in the grassland of northern Xinjiang (mean ± SD)

物种 Species 科 Family 器官 Organ n 碳含量 C content (%) CV 氮含量 N content (%) CV C:N CV 白刺 蒺藜科 叶 Leaves 12 38.40 ± 4.07 11 2.42 ± 0.47 20 16.40 ± 3.57 22 Nitraria spp. Zygophyllaceae 枝 Branches 12 44.29 ± 2.97 7 1.56 ± 0.28 18 29.59 ± 7.34 25 茎 Stems 14 45.82 ± 2.07 5 1.36 ± 0.22 17 34.66 ± 6.29 18 灌木地上部分 Shrub aboveground 43.95 ± 3.49 8 1.57 ± 0.40 19 30.85 ± 7.86 22 刺旋花 旋花科 叶 Leaves 11 40.48 ± 6.52 16 1.57 ± 0.48 30 27.82 ± 8.63 31 Convolvulus Convolvulaceae 枝 Branches 9 43.22 ± 4.16 10 1.14 ± 0.30 26 39.99 ± 10.00 25 ragacanthoides 茎 Stems 13 44.10 ± 2.24 5 1.27 ± 0.17 14 35.31 ± 5.54 16 灌木地上部分 Shrub aboveground 42.18 ± 5.85 14 1.33 ± 0.31 23 33.55 ± 8.56 26 红砂 柽柳科 叶 Leaves 79 34.67 ± 3.39 10 2.42 ± 0.52 22 14.92 ± 3.24 22 Reaumuria Tamaricaceae 枝 Branches 79 44.61 ± 1.80 4 1.74 ± 0.36 20 26.90 ± 6.65 25 songarica 茎 Stems 76 45.76 ± 2.40 5 1.37 ± 0.20 15 34.35 ± 6.43 19 灌木地上部分 Shrub aboveground 42.84 ± 2.97 7 1.73 ± 0.38 21 27.60 ± 6.48 23 假木贼 藜科 叶 Leaves 15 35.57 ± 2.78 8 1.76 ± 0.33 19 20.76 ± 3.92 19 Anabasis spp. Chenopodiaceae 枝 Branches 37 38.08 ± 4.19 11 1.61 ± 0.42 26 25.16 ± 6.70 27 茎 Stems 25 40.15 ± 2.70 7 1.54 ± 0.42 27 27.50 ± 6.19 23 灌木地上部分 Shrub aboveground 38.05 ± 2.48 7 1.63 ± 0.39 24 24.72 ± 4.66 19 锦鸡儿 豆科 叶 Leaves 70 44.34 ± 2.99 7 2.66 ± 0.48 18 17.24 ± 3.77 22 Caragana spp. Leguminosae 枝 Branches 71 46.71 ± 2.64 6 1.80 ± 0.48 27 27.72 ± 7.17 26 茎 Stems 66 47.14 ± 2.48 5 1.62 ± 0.29 18 30.26 ± 6.58 22 灌木地上部分 Shrub aboveground 46.44 ± 2.63 6 1.91 ± 0.45 23 26.76 ± 6.96 26 麻黄 麻黄科 枝 Branches 29 45.68 ± 3.43 8 1.89 ± 0.48 25 25.81 ± 7.26 28 Ephedra spp. Ephedraceae 茎 Stems 28 44.99 ± 4.33 10 1.52 ± 0.44 29 32.20 ± 9.40 29 灌木地上部分 Shrub aboveground 45.11 ± 2.94 7 1.75 ± 0.41 23 27.84 ± 7.16 26 沙拐枣 蓼科 枝 Branches 11 43.56 ± 4.53 10 1.34 ± 0.16 12 33.17 ± 6.79 20 Calligonum Polygonaceae 茎 Stems 17 46.76 ± 2.60 6 1.18 ± 0.18 15 40.41 ± 5.28 13 mongolicum 灌木地上部分 Shrub aboveground 46.46 ± 2.75 6 1.21 ± 0.16 13 39.19 ± 4.38 17 梭梭 藜科 叶 Leaves 63 35.73 ± 4.09 11 2.17 ± 0.50 23 17.66 ± 5.76 33 Haloxylon spp. Chenopodiaceae 枝 Branches 95 42.80 ± 3.81 9 1.58 ± 0.43 27 29.52 ± 9.57 32 茎 Stems 95 45.57 ± 2.71 6 1.31 ± 0.36 27 36.96 ± 9.40 25 灌木地上部分 Shrub aboveground 42.95 ± 3.02 7 1.54 ± 0.40 26 28.05 ± 8.24 27 金丝桃叶绣线菊 蔷薇科 叶 Leaves 58 46.60 ± 2.86 6 2.07 ± 0.40 19 23.24 ± 4.41 19 Spiraea Rosaceae 枝 Branches 62 47.66 ± 2.91 6 1.25 ± 0.23 18 39.27 ± 6.52 17 hypericifolia 茎 Stems 62 47.57 ± 2.37 5 1.11 ± 0.19 17 43.56 ± 5.26 12 灌木地上部分 Shrub aboveground 47.43 ± 2.31 5 1.21 ± 0.17 14 35.97 ± 4.48 15 驼绒藜 藜科 叶 Leaves 60 38.89 ± 2.93 8 1.97 ± 0.66 33 21.72 ± 6.70 31 Krascheninnikovia spp. Chenopodiaceae 枝 Branches 61 46.14 ± 2.17 5 1.24 ± 0.4 32 41.48 ± 14.56 35 茎 Stems 61 46.32 ± 4.50 10 1.10 ± 0.37 34 47.14 ± 17.06 36 灌木地上部分 Shrub aboveground 45.55 ± 2.40 5 1.32 ± 0.49 37 41.11 ± 14.45 35 小蓬 藜科 叶 Leaves 19 31.97 ± 5.37 17 1.64 ± 0.41 25 20.12 ± 3.89 19 Nanophyton Chenopodiaceae 枝 Branches 19 35.00 ± 7.40 21 1.40 ± 0.28 20 25.90 ± 8.40 32 erinaceum 茎 Stems 20 43.09 ± 4.02 9 1.44 ± 0.30 21 31.77 ± 10.56 33 灌木地上部分 Shrub aboveground 35.82 ± 6.75 19 1.42 ± 0.30 21 27.14 ± 10.71 29 盐爪爪 藜科 叶 Leaves 7 33.36 ± 5.48 16 2.42 ± 0.78 32 15.46 ± 6.81 44 Kalidium spp. Chenopodiaceae 枝 Branches 7 42.11 ± 4.10 10 1.58 ± 0.28 17 27.28 ± 5.34 20 茎 Stems 6 44.23 ± 2.66 6 1.37 ± 0.10 7 32.33 ± 2.22 7 灌木地上部分 Shrub aboveground 37.90 ± 7.91 11 1.83 ± 0.59 19 23.88 ± 8.75 37 猪毛菜 藜科 叶 Leaves 9 40.66 ± 5.29 13 2.05 ± 0.13 7 19.99 ± 3.71 19 Salsola spp. Chenopodiaceae 枝 Branches 9 45.72 ± 2.70 6 1.62 ± 0.24 15 28.92 ± 6.08 21 茎 Stems 5 46.84 ± 2.49 5 1.36 ± 0.03 2 34.38 ± 2.39 7 灌木地上部分 Shrub aboveground 43.86 ± 4.38 10 1.58 ± 0.21 13 29.84 ± 5.54 19 物种 Species 科 Family 器官 Organ n 碳含量 C content (%) CV 氮含量 N content (%) CV C:N CV 平均值 叶 Leaves 39.15 ± 5.91 15 2.21 ± 0.59 27 18.94 ± 5.82 31 Mean 枝 Branches 44.27 ± 4.51 10 1.55 ± 0.44 28 31.07 ± 10.43 34 茎 Stems 45.81 ± 3.43 7 1.34 ± 0.35 26 36.77 ± 10.78 29 灌木地上部分 Shrub aboveground 43.77 ± 4.43 10 1.56 ± 0.45 27 31.78 ± 10.12 32