植物生态学报 ›› 2017, Vol. 41 ›› Issue (1): 14-21.DOI: 10.17521/cjpe.2016.0201
所属专题: 中国灌丛生态系统碳储量的研究
郭焱培1, 杨弦1, 安尼瓦尔·买买提2, 刘鸿雁1, 马文红3, 于顺利4, 唐志尧1,*()
收稿日期:
2016-06-14
接受日期:
2016-11-10
出版日期:
2017-01-10
发布日期:
2017-01-23
通讯作者:
唐志尧
作者简介:
* 通信作者Author for correspondence (E-mail:基金资助:
Yan-Pei GUO1, Xian YANG1, Anwar MOHHAMOT2, Hong-Yan LIU1, Wen-Hong MA3, Shun-Li YU4, Zhi-Yao TANG1,*()
Received:
2016-06-14
Accepted:
2016-11-10
Online:
2017-01-10
Published:
2017-01-23
Contact:
Zhi-Yao TANG
About author:
KANG Jing-yao(1991-), E-mail: 摘要:
研究生态系统碳(C)、氮(N)、磷(P)密度分布和储量对于理解生态系统碳循环和养分循环的机制和规律有重要意义。现有的相关研究多集中在森林和草地生态系统。在中国北方, 灌丛生境水分和土壤条件差异很大, 这为研究生态系统C、N、P密度与储量的分布格局提供了良好条件。该研究调查了433个中国北方温带灌丛样地的生物量、凋落物以及土壤等组分的有机C及N、P含量, 据此计算出中国北方灌丛生态系统有机C及N、P密度和储量。结果表明: 中国北方灌丛平均生态系统有机C及N、P密度分别为69.8 Mg·hm-2、7.3 Mg·hm-2、4.2 Mg·hm-2。其中, 生物量C、N、P密度分别为5.1 Mg·hm-2、11.5×10-2 Mg·hm-2、8.6×10-3 Mg·hm-2, 生物量C、N、P密度与降水和土壤养分关系显著; 凋落物C、N、P密度分别为1.4 Mg·hm-2、3.8×10-2 Mg·hm-2、2.5×10-3 Mg·hm-2, 凋落物C、N、P密度与温度和降水关系显著; 1 m深土壤的平均有机C及N、P密度分别为64.0 Mg·hm-2、7.1 Mg·hm-2、4.2 Mg·hm-2, 土壤有机C及N密度与温度和降水关系显著。中国北方灌丛生态系统的总有机C及N、P储量分别为1.7 Pg、164.9 Tg、124.8 Tg。其中生物量C、N、P储量分别为128.4 Tg、3.1 Tg、0.2 Tg; 凋落物C、N、P储量分别为8.4 Tg、0.45 Tg、0.027 Tg; 土壤是最大的C、N、P库, 1 m深土壤有机C及N、P储量分别为1.6 Pg、161.3 Tg、124.6 Tg。
郭焱培, 杨弦, 安尼瓦尔·买买提, 刘鸿雁, 马文红, 于顺利, 唐志尧. 中国北方温带灌丛生态系统碳、氮、磷储量. 植物生态学报, 2017, 41(1): 14-21. DOI: 10.17521/cjpe.2016.0201
Yan-Pei GUO, Xian YANG, Anwar MOHHAMOT, Hong-Yan LIU, Wen-Hong MA, Shun-Li YU, Zhi-Yao TANG. Storage of carbon, nitrogen and phosphorus in temperate shrubland ecosystems across Northern China. Chinese Journal of Plant Ecology, 2017, 41(1): 14-21. DOI: 10.17521/cjpe.2016.0201
落叶阔叶灌丛 Deciduous broadleaf shrublands | 稀疏灌丛 Sparse shrublands | 总计 Total | |
---|---|---|---|
样地数 Number of sites | 329 | 104 | 433 |
碳密度 C density (Mg·hm-2) | 86.1 ± 3.7 | 22.1 ± 2.0 | 69.8 ± 3.0 |
生物量 Biomass (Mg·hm-2) | 6.1 ± 0.3 | 1.9 ± 0.3 | 5.1 ± 0.2 |
凋落物 Litter (Mg·hm-2) | 1.5 ± 0.2 | 0.7 ± 0.1 | 1.4 ± 0.1 |
土壤有机碳 Soil organic C (Mg·hm-2) | 78.5 ± 3.6 | 19.5 ± 1.9 | 64.0 ± 3.0 |
氮密度 N density (Mg·hm-2) | 8.1 ± 0.3 | 2.6 ± 0.3 | 7.3 ± 0.3 |
生物量 Biomass (10-2 Mg·hm-2) | 12.9 ± 0.6 | 6.4 ± 0.7 | 11.5 ± 0.5 |
凋落物 Litter (10-2 Mg·hm-2) | 4.0 ± 0.4 | 1.8 ± 0.2 | 3.8 ± 0.3 |
土壤 Soil (Mg·hm-2) | 7.9 ± 0.4 | 2.5 ± 0.3 | 7.1 ± 0.3 |
磷密度 P density (Mg·hm-2) | 4.3 ± 0.2 | 3.7 ± 0.3 | 4.2 ± 0.2 |
生物量 Biomass (10-3 Mg·hm-2) | 9.9 ± 0.5 | 3.6 ± 0.3 | 8.6 ± 0.4 |
凋落物 Litter (10-3 Mg·hm-2) | 2.7 ± 0.2 | 0.9 ± 0.2 | 2.5 ± 0.2 |
土壤 Soil (Mg·hm-2) | 4.3 ± 0.2 | 3.7 ± 0.3 | 4.2 ± 0.2 |
表1 中国北方主要灌丛的碳、氮、磷密度(平均值±标准误差)
Table 1 Carbon (C), nitrogen (N) and phosphorus (P) densities of major shrublands in Northern China (mean ± SE)
落叶阔叶灌丛 Deciduous broadleaf shrublands | 稀疏灌丛 Sparse shrublands | 总计 Total | |
---|---|---|---|
样地数 Number of sites | 329 | 104 | 433 |
碳密度 C density (Mg·hm-2) | 86.1 ± 3.7 | 22.1 ± 2.0 | 69.8 ± 3.0 |
生物量 Biomass (Mg·hm-2) | 6.1 ± 0.3 | 1.9 ± 0.3 | 5.1 ± 0.2 |
凋落物 Litter (Mg·hm-2) | 1.5 ± 0.2 | 0.7 ± 0.1 | 1.4 ± 0.1 |
土壤有机碳 Soil organic C (Mg·hm-2) | 78.5 ± 3.6 | 19.5 ± 1.9 | 64.0 ± 3.0 |
氮密度 N density (Mg·hm-2) | 8.1 ± 0.3 | 2.6 ± 0.3 | 7.3 ± 0.3 |
生物量 Biomass (10-2 Mg·hm-2) | 12.9 ± 0.6 | 6.4 ± 0.7 | 11.5 ± 0.5 |
凋落物 Litter (10-2 Mg·hm-2) | 4.0 ± 0.4 | 1.8 ± 0.2 | 3.8 ± 0.3 |
土壤 Soil (Mg·hm-2) | 7.9 ± 0.4 | 2.5 ± 0.3 | 7.1 ± 0.3 |
磷密度 P density (Mg·hm-2) | 4.3 ± 0.2 | 3.7 ± 0.3 | 4.2 ± 0.2 |
生物量 Biomass (10-3 Mg·hm-2) | 9.9 ± 0.5 | 3.6 ± 0.3 | 8.6 ± 0.4 |
凋落物 Litter (10-3 Mg·hm-2) | 2.7 ± 0.2 | 0.9 ± 0.2 | 2.5 ± 0.2 |
土壤 Soil (Mg·hm-2) | 4.3 ± 0.2 | 3.7 ± 0.3 | 4.2 ± 0.2 |
图1 中国北方灌丛生物量碳(A-D)、氮(E-H)、磷(I-L)密度与环境的关系(点线: p > 0.01; 短划线: 0.001 < p < 0.01; 实线: p < 0.001)。
Fig. 1 Biomass carbon (C) (A-D), nitrogen (N) (E-H) and phosphorus (P) (I-L) densities for shrublands of Northern China in relation to environmental factors (dotted line: p > 0.01; dashed line: 0.001 < p < 0.01; solid line: p < 0.001). AP, annual precipitation; MAT, mean annual temperature; STN, soil total nitrogen concentration; STP, soil total phosphorus concentration.
图2 中国北方灌丛凋落物碳(A-D)、氮(E-H)、磷(I-L)密度与环境的关系。不同线型和缩写的意义见图1。
Fig. 2 Litter carbon (C) (A-D), nitrogen (N) (E-H) and phosphorus (P) (I-L) densities for shrublands of Northern China in relation to environmental factors. Please see Fig. 1 for the meaning of different line types and abbreviations.
图3 中国北方灌丛土壤有机碳(A, B)、氮(C, D)、磷(E, F)密度与气候的关系。不同线型和缩写的意义见图1。
Fig. 3 Soil organic carbon (C) (A, B), nitrogen (N) (C, D) and phosphorus (P) (E, F) densities for shrubland of Northern China in relation to climatic factors. Please see Fig. 1 for the meaning of different line types and abbreviations.
灌丛植被型 Shrubland types | 落叶阔叶灌丛 Deciduous broadleaf shrublands | 稀疏灌丛 Sparse shrublands | 总计 Total |
---|---|---|---|
面积 Area (104 hm2) | 1 828.6 | 1 050.4 | 2 879.0 |
碳储量 C storage (Tg) | 1 537.6 | 183.5 | 1 721.1 |
生物量 Biomass | 118.6 | 9.8 | 128.4 |
凋落物 Litter | 8.2 | 0.2 | 8.4 |
土壤有机碳 Soil organic C | 1 410.8 | 173.5 | 1 584.3 |
氮储量 N storage (Tg) | 137.1 | 27.8 | 164.9 |
生物量 Biomass | 2.8 | 0.3 | 3.1 |
凋落物 Litter | 4.5 | 0.0 | 4.5 |
土壤 Soil | 133.8 | 27.5 | 161.3 |
磷储量 P storage (Tg) | 80.7 | 44.1 | 124.8 |
生物量 Biomass | 0.2 | 0.0 | 0.2 |
凋落物 Litter | 2.7 | 0.0 | 2.7 |
土壤 Soil | 80.5 | 44.1 | 124.6 |
表2 中国北方主要灌丛的碳、氮、磷储量
Table 2 Carbon (C), nitrogen (N) and phosphorus (P) storage of major shrublands in Northern China
灌丛植被型 Shrubland types | 落叶阔叶灌丛 Deciduous broadleaf shrublands | 稀疏灌丛 Sparse shrublands | 总计 Total |
---|---|---|---|
面积 Area (104 hm2) | 1 828.6 | 1 050.4 | 2 879.0 |
碳储量 C storage (Tg) | 1 537.6 | 183.5 | 1 721.1 |
生物量 Biomass | 118.6 | 9.8 | 128.4 |
凋落物 Litter | 8.2 | 0.2 | 8.4 |
土壤有机碳 Soil organic C | 1 410.8 | 173.5 | 1 584.3 |
氮储量 N storage (Tg) | 137.1 | 27.8 | 164.9 |
生物量 Biomass | 2.8 | 0.3 | 3.1 |
凋落物 Litter | 4.5 | 0.0 | 4.5 |
土壤 Soil | 133.8 | 27.5 | 161.3 |
磷储量 P storage (Tg) | 80.7 | 44.1 | 124.8 |
生物量 Biomass | 0.2 | 0.0 | 0.2 |
凋落物 Litter | 2.7 | 0.0 | 2.7 |
土壤 Soil | 80.5 | 44.1 | 124.6 |
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