Chin J Plan Ecolo ›› 2015, Vol. 39 ›› Issue (5): 453-465.DOI: 10.17521/cjpe.2015.0044
Special Issue: 生态化学计量
• Orginal Article • Previous Articles Next Articles
LI Dan-Feng1,2, YU Shun-Li1,*(), WANG Guo-Xun1,3, FANG Wei-Wei2,4
Received:
2015-01-22
Accepted:
2015-03-31
Online:
2015-05-01
Published:
2015-05-26
Contact:
Shun-Li YU
About author:
# Co-first authors
LI Dan-Feng,YU Shun-Li,WANG Guo-Xun,FANG Wei-Wei. Environmental heterogeneity and mechanism of stoichiometry properties of vegetative organs in dominant shrub communities across the Loess Plateau[J]. Chin J Plan Ecolo, 2015, 39(5): 453-465.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2015.0044
器官 Organs | n | C (mg·g-1) | N (mg·g-1) | P (mg·g-1) | C:N | C:P | N:P |
---|---|---|---|---|---|---|---|
叶 Leaf | 101 | 421.40 ± 46.66c | 23.43 ± 8.00a | 1.20 ± 0.50a | 20.23 ± 7.62b | 411.46 ± 194.76b | 20.81 ± 6.15a |
茎 Stem | 125 | 459.55 ± 24.50a | 10.58 ± 3.79b | 0.56 ± 0.21b | 51.22 ± 24.13a | 922.88 ± 353.36a | 20.06 ± 8.04a |
根 Root | 129 | 444.87 ± 29.13b | 11.40 ± 4.85b | 0.57 ± 0.29b | 48.68 ± 26.05a | 974.25 ± 472.28a | 22.54 ± 10.33a |
Table 1 Concentrations of carbon (C), nitrogen (N) and phosphorous (P) of plant vegetative organs in the dominant shrubs communities across the Loess Plateau (mean ± SD)
器官 Organs | n | C (mg·g-1) | N (mg·g-1) | P (mg·g-1) | C:N | C:P | N:P |
---|---|---|---|---|---|---|---|
叶 Leaf | 101 | 421.40 ± 46.66c | 23.43 ± 8.00a | 1.20 ± 0.50a | 20.23 ± 7.62b | 411.46 ± 194.76b | 20.81 ± 6.15a |
茎 Stem | 125 | 459.55 ± 24.50a | 10.58 ± 3.79b | 0.56 ± 0.21b | 51.22 ± 24.13a | 922.88 ± 353.36a | 20.06 ± 8.04a |
根 Root | 129 | 444.87 ± 29.13b | 11.40 ± 4.85b | 0.57 ± 0.29b | 48.68 ± 26.05a | 974.25 ± 472.28a | 22.54 ± 10.33a |
Fig. 1 Percentage content allocated to each vegetative organ of C, N, P (A) and C:N, C:P, N:P in dominant shrub communities (B) across the Loess Plateau (mean ± SD). Different lowercase letters indicate significant differences (p < 0.05).
依变量 Dependent variable | 自变量 Independent variable | 回归系数 Regression coefficient | p |
---|---|---|---|
土壤全碳 Soil total carbon | 生长季气温 Growing season temperature | -0.89 | 0.028* |
年降水量 Annual precipitation | 5.04 | 0.009** | |
生长季降水量 Growing season precipitation | -5.32 | 0.01* | |
土壤全氮 Soil total nitrogen | 生长季气温 Growing season temperature | -1.33 | 0.03* |
年降水量 Annual precipitation | 0.64 | 0.000*** | |
土壤全磷 Soil total phosphorous | 生长季气温 Growing season temperature | -0.63 | 0.007** |
年降水量 Annual precipitation | 0.13 | 0.01* |
Table 2 Stepwise regression analysis of soil nutrients and climate factors in the dominant shrub communities across the Loess Plateau
依变量 Dependent variable | 自变量 Independent variable | 回归系数 Regression coefficient | p |
---|---|---|---|
土壤全碳 Soil total carbon | 生长季气温 Growing season temperature | -0.89 | 0.028* |
年降水量 Annual precipitation | 5.04 | 0.009** | |
生长季降水量 Growing season precipitation | -5.32 | 0.01* | |
土壤全氮 Soil total nitrogen | 生长季气温 Growing season temperature | -1.33 | 0.03* |
年降水量 Annual precipitation | 0.64 | 0.000*** | |
土壤全磷 Soil total phosphorous | 生长季气温 Growing season temperature | -0.63 | 0.007** |
年降水量 Annual precipitation | 0.13 | 0.01* |
Fig. 2 Differences of element storage among plant organs in shrubs from the three dominant shrub regions (mean ± SD). GN, southern Gansu; GX, western Gansu; NB, northern Ningxia. Different lowercase letters indicate significant differences (p < 0.05).
养分 Nutrients | n | 甘肃南部 Southern Gansu | 宁夏北部 Northern Ningxia | 甘肃西部 Western Gansu |
---|---|---|---|---|
土壤全碳 Soil total carbon (mg·g-1) | 39 | 3.35 ± 2.03a | 1.24 ± 0.55b | 1.48 ± 0.27b |
土壤全氮 Soil total nitrogen (mg·g-1) | 51 | 0.230 ± 0.17a | 0.074 ± 0.06b | 0.024 ± 0.01b |
土壤全磷 Soil total phosphorous (mg·g-1) | 33 | 0.73 ± 0.16a | 0.46 ± 0.16b | 0.43 ± 0.14b |
Table 3 Differences of soil nutrients in the dominant shrub communities across the Loess Plateau (mean ± SD)
养分 Nutrients | n | 甘肃南部 Southern Gansu | 宁夏北部 Northern Ningxia | 甘肃西部 Western Gansu |
---|---|---|---|---|
土壤全碳 Soil total carbon (mg·g-1) | 39 | 3.35 ± 2.03a | 1.24 ± 0.55b | 1.48 ± 0.27b |
土壤全氮 Soil total nitrogen (mg·g-1) | 51 | 0.230 ± 0.17a | 0.074 ± 0.06b | 0.024 ± 0.01b |
土壤全磷 Soil total phosphorous (mg·g-1) | 33 | 0.73 ± 0.16a | 0.46 ± 0.16b | 0.43 ± 0.14b |
Fig. 3 Differences of element’ ratios among plant organs in shrubs from the three dominant shrub regions (mean ± SD). GN, southern Gansu; GX, western Gansu; NB, northern Ningxia. Different lowercase letters indicate significant differences (p < 0.05).
Fig. 4 Difference of vegetable organs’ C, N and P storages among genus from the three shrub regions across Loess Plateau (mean). A, C storage in plant organs in Southern Gansu; B, N storage in plant organs in Southern Gansu; C, P storage in plant organs in Southern Gansu. D, C storage in plant organs in Northern Ningxia; E, N storage in plant organs in Northern Ningxia; F, P storage in plant organs in Northern Ningxia. G, C storage in plant organs in Western Gansu; H, N storage in plant organs in Western Gansu; I, P storage in plant organs in Western Gansu.
地点 Site | 优势物种 Dominant species | 纬度 Latitude (°) | 经度 Longitude (°) | 海拔 Altitude (m) | 年平均气温 Mean annual air temperature (℃) | 年降水量Annual precipitation (mm) | 生长季温度 Growing season temperature (℃) | 生长季降水量Growing season precipitation (mm) |
---|---|---|---|---|---|---|---|---|
甘肃南部 Southern Gansu | ||||||||
礼县 Li County | 虎榛子 Ostryopsis davidiana | 34.32 | 105.25 | 1 591 | 9.8 | 606 | 18.6 | 313 |
礼县 Li County | 蔷薇-栒子 Rosa prattii - Cotoneaster acutifolius | 34.43 | 105.23 | 1 811 | 8.4 | 613 | 17.1 | 317 |
舟曲县 Zhouqu County | 荆条-杠柳 Vitex negundo - Periploca sepium | 33.78 | 104.33 | 1 430 | 10.5 | 568 | 18.6 | 288 |
宕昌县 Dangchang County | 虎榛子 Ostryopsis davidiana | 34.08 | 104.28 | 1 964 | 7.7 | 613 | 15.9 | 309 |
岷县 Min County | 秦岭小檗 Berberis circumserrata | 34.44 | 103.97 | 2 356 | 6.9 | 597 | 15.3 | 307 |
卓尼县 Zhuoni County | 水栒子 Cotoneaster multiflorus | 34.58 | 103.50 | 2 635 | 3.6 | 605 | 11.9 | 315 |
武山县 Wushan County | 沙棘 Hippophae rhamnoides | 34.44 | 105.05 | 2 228 | 7.0 | 625 | 15.6 | 321 |
徽县 Hui County | 黄栌 Cotinus coggygria | 33.74 | 106.10 | 861 | 13.0 | 682 | 21.9 | 369 |
徽县 Hui County | 白刺花 Sophora davidii | 33.85 | 106.21 | 1 030 | 12.8 | 681 | 21.8 | 367 |
成县 Cheng County | 马桑 Coriaria nepalensis | 33.53 | 105.82 | 1 107 | 13.3 | 673 | 21.9 | 366 |
临夏县 Linxia County | 箭叶锦鸡儿 Caragana jubata | 35.57 | 102.98 | 2 181 | 5.4 | 507 | 14.5 | 279 |
临夏县 Linxia County | 吉拉柳 Salix gilashanica | 35.56 | 102.85 | 2 605 | 3.4 | 524 | 12.2 | 288 |
临夏县 Linxia County | 硬叶柳 Salix sclerophylla | 35.55 | 102.55 | 2 508 | 1.6 | 592 | 6.7 | 331 |
甘肃西部 Western Gansu | ||||||||
瓜州县 Guazhou County | 西伯利亚白刺 Nitraria sibirica | 40.31 | 94.80 | 1 063 | 10.0 | 37 | 24.1 | 24 |
瓜州县 Guazhou County | 刚毛柽柳 Tamarix hispida | 40.29 | 94.78 | 1 060 | 10.0 | 37 | 24.0 | 24 |
敦煌市 Dunhuang City | 泡泡刺 Nitraria sphaerocarpa | 40.15 | 94.91 | 1 082 | 10.1 | 41 | 24.2 | 26 |
敦煌市 Dunhuang City | 蒙古沙拐枣 Calligonum mongolicum | 40.14 | 94.92 | 1 080 | 10.1 | 41 | 24.3 | 26 |
敦煌市 Dunhuang City | 膜果麻黄 Ephedra przewalskii | 40.00 | 94.28 | 1 327 | 9.1 | 34 | 22.7 | 22 |
敦煌市 Dunhuang City | 泡泡刺 Nitraria sphaerocarpa | 40.27 | 93.93 | 1 044 | 10.2 | 28 | 24.3 | 18 |
阿克塞县 Aksay County | 沙拐枣 Calligonum mongolicum | 39.64 | 94.36 | 1 677 | 7.7 | 32 | 21.1 | 22 |
阿克塞县 Aksay County | 红砂 Reaumuria soongarica | 39.66 | 94.37 | 1 646 | 7.7 | 32 | 21.1 | 22 |
敦煌市 Dunhuang City | 梭梭 Haloxylon ammodendron | 39.69 | 94.35 | 1 589 | 7.8 | 33 | 21.3 | 22 |
敦煌市 Dunhuang City | 膜果麻黄 Ephedra przewalskii | 39.69 | 94.35 | 1 602 | 7.8 | 33 | 21.3 | 22 |
敦煌市 Dunhuang City | 塔里木沙拐枣 Calligonum roborowskii | 39.76 | 94.36 | 1 518 | 8.3 | 33 | 21.8 | 22 |
金塔县 Jinta County | 红砂 Reaumuria soongarica | 39.86 | 98.66 | 1 391 | 8.2 | 85 | 21.3 | 51 |
金塔县 Jinta County | 多花柽柳 Tamarix hohenackeri | 39.93 | 98.87 | 1 287 | 8.6 | 80 | 21.9 | 48 |
肃南县 Sunan County | 红砂 Reaumuria soongarica | 39.65 | 98.32 | 1 786 | 6.6 | 105 | 19.5 | 66 |
酒泉市 Jiuquan City | 膜果麻黄 Ephedra przewalskii | 39.49 | 98.96 | 1 528 | 7.6 | 103 | 20.4 | 62 |
高台县 Gaotai County | 盐爪爪 Kalidium foliatum | 39.29 | 99.29 | 1 728 | 6.5 | 126 | 19.1 | 78 |
金塔县 Jinta County | 大白刺 Nitraria roborowskii | 39.98 | 98.30 | 1 492 | 8.5 | 87 | 21.9 | 53 |
宁夏北部 Northern Ningxia | ||||||||
西夏区 Xixia District | 刺旋花 Convolvulus tragacanthoides | 38.62 | 105.96 | 1 376 | 8.5 | 197 | 20.3 | 120 |
西夏区 Xixia District | 麻黄 Ephedra sinica | 38.59 | 105.97 | 1 260 | 8.5 | 197 | 20.3 | 120 |
贺兰县 Helan County | 细叶锦鸡儿 Caragana stenophylla | 38.73 | 106.01 | 1 388 | 7.8 | 203 | 19.6 | 124 |
灵武市 Lingwu City | 尖叶盐爪爪 Kalidium cuspidatum | 38.33 | 106.42 | 1 153 | 8.4 | 213 | 20.0 | 131 |
灵武市 Lingwu City | 刺叶柄棘豆 Oxytropis aciphylla | 38.11 | 106.49 | 1 237 | 8.4 | 229 | 19.8 | 139 |
灵武市 Lingwu City | 红砂 Reaumuria soongarica | 38.09 | 106.48 | 1 246 | 8.4 | 229 | 19.8 | 139 |
陶乐县 Taole County | 西伯利亚白刺 Nitraria sibirica | 38.42 | 106.55 | 1 205 | 8.5 | 213 | 20.1 | 130 |
平罗县 Pingluo County | 酸枣 Ziziphus jujuba | 38.87 | 106.18 | 1 230 | 8.8 | 180 | 20.7 | 111 |
平罗县 Pingluo County | 蒙古扁桃 Amygdalus mongolica | 38.73 | 106.14 | 1 420 | 9.0 | 185 | 20.9 | 113 |
平罗县 Pingluo County | 小果白刺 Nitraria sibirica | 38.88 | 106.66 | 1 094 | 8.8 | 190 | 20.9 | 119 |
平罗县 Pingluo County | 沙冬青 Ammopiptanthus mongolicus | 38.45 | 106.55 | 1 162 | 8.5 | 213 | 20.1 | 130 |
Appendix 1 General situations of environmental factors of sample sites for the dominant shrub communities across the Loess Plateau
地点 Site | 优势物种 Dominant species | 纬度 Latitude (°) | 经度 Longitude (°) | 海拔 Altitude (m) | 年平均气温 Mean annual air temperature (℃) | 年降水量Annual precipitation (mm) | 生长季温度 Growing season temperature (℃) | 生长季降水量Growing season precipitation (mm) |
---|---|---|---|---|---|---|---|---|
甘肃南部 Southern Gansu | ||||||||
礼县 Li County | 虎榛子 Ostryopsis davidiana | 34.32 | 105.25 | 1 591 | 9.8 | 606 | 18.6 | 313 |
礼县 Li County | 蔷薇-栒子 Rosa prattii - Cotoneaster acutifolius | 34.43 | 105.23 | 1 811 | 8.4 | 613 | 17.1 | 317 |
舟曲县 Zhouqu County | 荆条-杠柳 Vitex negundo - Periploca sepium | 33.78 | 104.33 | 1 430 | 10.5 | 568 | 18.6 | 288 |
宕昌县 Dangchang County | 虎榛子 Ostryopsis davidiana | 34.08 | 104.28 | 1 964 | 7.7 | 613 | 15.9 | 309 |
岷县 Min County | 秦岭小檗 Berberis circumserrata | 34.44 | 103.97 | 2 356 | 6.9 | 597 | 15.3 | 307 |
卓尼县 Zhuoni County | 水栒子 Cotoneaster multiflorus | 34.58 | 103.50 | 2 635 | 3.6 | 605 | 11.9 | 315 |
武山县 Wushan County | 沙棘 Hippophae rhamnoides | 34.44 | 105.05 | 2 228 | 7.0 | 625 | 15.6 | 321 |
徽县 Hui County | 黄栌 Cotinus coggygria | 33.74 | 106.10 | 861 | 13.0 | 682 | 21.9 | 369 |
徽县 Hui County | 白刺花 Sophora davidii | 33.85 | 106.21 | 1 030 | 12.8 | 681 | 21.8 | 367 |
成县 Cheng County | 马桑 Coriaria nepalensis | 33.53 | 105.82 | 1 107 | 13.3 | 673 | 21.9 | 366 |
临夏县 Linxia County | 箭叶锦鸡儿 Caragana jubata | 35.57 | 102.98 | 2 181 | 5.4 | 507 | 14.5 | 279 |
临夏县 Linxia County | 吉拉柳 Salix gilashanica | 35.56 | 102.85 | 2 605 | 3.4 | 524 | 12.2 | 288 |
临夏县 Linxia County | 硬叶柳 Salix sclerophylla | 35.55 | 102.55 | 2 508 | 1.6 | 592 | 6.7 | 331 |
甘肃西部 Western Gansu | ||||||||
瓜州县 Guazhou County | 西伯利亚白刺 Nitraria sibirica | 40.31 | 94.80 | 1 063 | 10.0 | 37 | 24.1 | 24 |
瓜州县 Guazhou County | 刚毛柽柳 Tamarix hispida | 40.29 | 94.78 | 1 060 | 10.0 | 37 | 24.0 | 24 |
敦煌市 Dunhuang City | 泡泡刺 Nitraria sphaerocarpa | 40.15 | 94.91 | 1 082 | 10.1 | 41 | 24.2 | 26 |
敦煌市 Dunhuang City | 蒙古沙拐枣 Calligonum mongolicum | 40.14 | 94.92 | 1 080 | 10.1 | 41 | 24.3 | 26 |
敦煌市 Dunhuang City | 膜果麻黄 Ephedra przewalskii | 40.00 | 94.28 | 1 327 | 9.1 | 34 | 22.7 | 22 |
敦煌市 Dunhuang City | 泡泡刺 Nitraria sphaerocarpa | 40.27 | 93.93 | 1 044 | 10.2 | 28 | 24.3 | 18 |
阿克塞县 Aksay County | 沙拐枣 Calligonum mongolicum | 39.64 | 94.36 | 1 677 | 7.7 | 32 | 21.1 | 22 |
阿克塞县 Aksay County | 红砂 Reaumuria soongarica | 39.66 | 94.37 | 1 646 | 7.7 | 32 | 21.1 | 22 |
敦煌市 Dunhuang City | 梭梭 Haloxylon ammodendron | 39.69 | 94.35 | 1 589 | 7.8 | 33 | 21.3 | 22 |
敦煌市 Dunhuang City | 膜果麻黄 Ephedra przewalskii | 39.69 | 94.35 | 1 602 | 7.8 | 33 | 21.3 | 22 |
敦煌市 Dunhuang City | 塔里木沙拐枣 Calligonum roborowskii | 39.76 | 94.36 | 1 518 | 8.3 | 33 | 21.8 | 22 |
金塔县 Jinta County | 红砂 Reaumuria soongarica | 39.86 | 98.66 | 1 391 | 8.2 | 85 | 21.3 | 51 |
金塔县 Jinta County | 多花柽柳 Tamarix hohenackeri | 39.93 | 98.87 | 1 287 | 8.6 | 80 | 21.9 | 48 |
肃南县 Sunan County | 红砂 Reaumuria soongarica | 39.65 | 98.32 | 1 786 | 6.6 | 105 | 19.5 | 66 |
酒泉市 Jiuquan City | 膜果麻黄 Ephedra przewalskii | 39.49 | 98.96 | 1 528 | 7.6 | 103 | 20.4 | 62 |
高台县 Gaotai County | 盐爪爪 Kalidium foliatum | 39.29 | 99.29 | 1 728 | 6.5 | 126 | 19.1 | 78 |
金塔县 Jinta County | 大白刺 Nitraria roborowskii | 39.98 | 98.30 | 1 492 | 8.5 | 87 | 21.9 | 53 |
宁夏北部 Northern Ningxia | ||||||||
西夏区 Xixia District | 刺旋花 Convolvulus tragacanthoides | 38.62 | 105.96 | 1 376 | 8.5 | 197 | 20.3 | 120 |
西夏区 Xixia District | 麻黄 Ephedra sinica | 38.59 | 105.97 | 1 260 | 8.5 | 197 | 20.3 | 120 |
贺兰县 Helan County | 细叶锦鸡儿 Caragana stenophylla | 38.73 | 106.01 | 1 388 | 7.8 | 203 | 19.6 | 124 |
灵武市 Lingwu City | 尖叶盐爪爪 Kalidium cuspidatum | 38.33 | 106.42 | 1 153 | 8.4 | 213 | 20.0 | 131 |
灵武市 Lingwu City | 刺叶柄棘豆 Oxytropis aciphylla | 38.11 | 106.49 | 1 237 | 8.4 | 229 | 19.8 | 139 |
灵武市 Lingwu City | 红砂 Reaumuria soongarica | 38.09 | 106.48 | 1 246 | 8.4 | 229 | 19.8 | 139 |
陶乐县 Taole County | 西伯利亚白刺 Nitraria sibirica | 38.42 | 106.55 | 1 205 | 8.5 | 213 | 20.1 | 130 |
平罗县 Pingluo County | 酸枣 Ziziphus jujuba | 38.87 | 106.18 | 1 230 | 8.8 | 180 | 20.7 | 111 |
平罗县 Pingluo County | 蒙古扁桃 Amygdalus mongolica | 38.73 | 106.14 | 1 420 | 9.0 | 185 | 20.9 | 113 |
平罗县 Pingluo County | 小果白刺 Nitraria sibirica | 38.88 | 106.66 | 1 094 | 8.8 | 190 | 20.9 | 119 |
平罗县 Pingluo County | 沙冬青 Ammopiptanthus mongolicus | 38.45 | 106.55 | 1 162 | 8.5 | 213 | 20.1 | 130 |
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