锡林浩特草原净生态系统碳交换量特征及源区分布

doi:10.13287/j.1001-9332.202306.006

应用生态学报 ›› 2023, Vol. 34 ›› Issue (6): 1509-1516.doi: 10.13287/j.1001-9332.202306.006

锡林浩特草原净生态系统碳交换量特征及源区分布

晨阳¹, 李慧融², 李冬楠³, 孙鹏飞^4,5*, 宿江华²

¹锡林郭勒盟气象局, 内蒙古锡林浩特 026000;
²锡林浩特国家气候观象台, 内蒙古锡林浩特 026000;
³黑龙江省人民政府人工降雨办公室, 哈尔滨 150030;
⁴中国气象局沈阳大气环境研究所, 沈阳 110166;
⁵伊春市气象局, 黑龙江伊春 153000

收稿日期:2023-01-26 接受日期:2023-04-16 出版日期:2023-06-15 发布日期:2023-12-15
通讯作者: *E-mail: beyondfei@126.com
作者简介:晨阳, 女, 1992年生, 工程师。主要从事天气学研究。E-mail: 1055466033@qq.com
基金资助:
国家重点研发计划项目(2022YFF0801301)、科技部科技基础资源调查项目(2019FY0101302)和内蒙古自治区气象局研究型业务建设项目

Characteristics of net ecosystem exchange and source distribution of Xilinhot grassland, China

CHEN Yang¹, LI Huirong², LI Dongnan³, SUN Pengfei^4,5*, SU Jianghua²

¹Xilin Golmeng Meteorological Bureau, Xilinhot 026000, Inner Mongolia, China;
²Xilinhot National Climate Observatory, Xilinhot 026000, Inner Mongolia, China;
³Office of Artificial Rainfall of the People's Government of Heilongjiang Province, Harbin 150030, China;
⁴Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China;
⁵Yichun Meteorological Bureau, Yichun 153000, Heilongjiang, China

Received:2023-01-26 Accepted:2023-04-16 Online:2023-06-15 Published:2023-12-15

摘要/Abstract

摘要： 为探究草原生态系统固碳能力,利用锡林浩特国家气候观象台2018—2021年的涡动相关资料分析了锡林浩特草原生态系统CO₂通量的变化特征以及环境因子对CO₂通量的影响,并对通量源区分布进行了探讨。结果表明: 研究区全年盛行西南风,生长季的源区面积大于非生长季,大气稳定条件下的源区面积大于不稳定条件;90%贡献率的源区最大长度接近400 m,与经典法则估算的长度一致。锡林浩特草原净生态系统碳交换量(NEE)具有明显的日变化和季节变化,生长季白天为碳汇,夜间为碳源,非生长季白天和夜间均为弱碳源。2018—2021年,年总NEE分别为-15.59、-46.28、-41.94和-78.14 g C·m^-2·a^-1,平均值为-45.49 g C·m^-2·a^-1,表明锡林浩特草原有较强的固碳能力。饱和水汽压差和光合有效辐射有助于草原生态系统吸收大气中CO₂;夜间,当温度高于0 ℃时,气温和土壤温度升高会促进植被呼吸作用释放CO₂。

关键词: 草原生态系统, 足迹分析, 净生态系统碳交换量, 环境影响因子

Abstract: To understand carbon sequestration capacity of grasslands, the changes of CO₂ flux in Xilinhot grasslands and the influence of environmental factors were analyzed by using the eddy data of Xilinhot National Climate Observatory in 2018-2021, and the distribution of flux source areas was analyzed. The results showed that the southwest wind prevailed in the study area throughout the year, the source area in the growing season was larger than that in the non-growing season, and the source area under stable atmospheric conditions was larger than that under unstable conditions. The maximum length of source region with a contribution rate of 90% was close to 400 m, which was consistent with the length estimated by the classical law. The net ecosystem exchange (NEE) of Xilinhot grasslands had obvious diurnal and seasonal dynamics, which was manifested as a carbon sink in the daytime and a carbon source at night during the growing season and weak carbon source in the non-growing season. From 2018 to 2021, the annual total NEE were -15.59, -46.28, -41.94, and -78.14 g C·m^-2·a^-1, respectively, with an average value of -45.49 g C·m^-2·a^-1, indicating that Xilinhot grassland had strong carbon sequestration capacity. Vapor pressure deficit and photosynthetically active radiation helped grasslands absorb atmospheric CO₂. At night, when temperature was above 0 ℃, the increases in air and soil temperature promoted vegetation respiration to release CO₂.

Key words: grassland ecosystem, footprint, net ecosystem exchange, environmental impact factor

晨阳, 李慧融, 李冬楠, 孙鹏飞, 宿江华. 锡林浩特草原净生态系统碳交换量特征及源区分布[J]. 应用生态学报, 2023, 34(6): 1509-1516.

CHEN Yang, LI Huirong, LI Dongnan, SUN Pengfei, SU Jianghua. Characteristics of net ecosystem exchange and source distribution of Xilinhot grassland, China[J]. Chinese Journal of Applied Ecology, 2023, 34(6): 1509-1516.

参考文献

[1] Nisbet MC, Myers T. The polls-trends: Twenty years of public opinion about global warming. Public Opinion Quarterly, 2007, 71: 444-470
[2] 张颖娴, 孙劭, 刘远, 等. 2021年全球重大天气气候事件及其成因. 气象, 2022, 48(4): 459-469
[3] 王卓妮, 袁佳双, 庞博, 等. IPCC AR6 WGⅢ报告减缓主要结论、亮点和启示. 气候变化研究进展, 2022, 18(5): 531-537
[4] 陈之光, 张翔, 刘晓琴,等. 青藏高原高寒草甸净生态系统碳交换对散射辐射变化的响应. 应用生态学报, 2018, 29(6): 1829-1838
[5] 李辉, 红英, 邓国荣, 等. 1982—2015年气候变化和人类活动对内蒙古草地净初级生产力的影响. 应用生态学报, 2021, 32(2): 415-424
[6] 季波, 何建龙, 王占军, 等. 宁夏天然草地植被碳储量特征及构成. 应用生态学报, 2021, 32(4): 1259-1268
[7] 季波, 谢应忠, 何建龙, 等. 宁夏典型温性天然草地固碳特征. 应用生态学报, 2020, 31(11): 3657-3664
[8] 朱苑, 刘帆, 王传宽, 等. 帽儿山温带落叶阔叶林净生态系统碳交换的日变化及光响应特征. 应用生态学报, 2020, 31(1): 72-82
[9] 吴利禄, 高翔, 褚建民, 等. 民勤绿洲-荒漠过渡带梭梭人工林净碳交换及其影响因子. 应用生态学报, 2019, 30(10): 3336-3346
[10] 董校兵, 曲鲁平, 董刚, 等. 刈割降低热浪对内蒙古草甸草原碳通量的影响. 生态学报, 2021, 41(17): 6836-6845
[11] 郭文章, 井长青, 邓小进, 等. 新疆天山北坡荒漠草原碳通量特征及其对环境因子的响应. 草业学报, 2022, 31(5): 1-12
[12] 彭大庆, 王海, 塔娜, 等. 降水变化和氮素添加对荒漠草原土壤碳通量的影响. 中国草地学报, 2022, 44(11): 1-8
[13] 孙思思, 吴战平, 肖启涛, 等. 云贵高原草地生态系统CO₂通量变化特征. 草业学报, 2020, 29(4): 184-191
[14] 柴曦, 李英年, 段呈, 等. 青藏高原高寒灌丛草甸和草原化草甸CO₂通量动态及其限制因子. 植物生态学报, 2018, 42(1): 6-19
[15] 马文婧, 李英年, 张法伟, 等. 青海湖北岸草甸草原CO₂通量年际动态及其驱动机制. 生态学报, 2023, 43(3): 1102-1112
[16] 赵亮, 古松, 徐世晓, 等. 青藏高原高寒草甸生态系统碳通量特征及其控制因子. 西北植物学报, 2007, 27(5): 1054-1060
[17] 耿绍波, 鲁绍伟, 饶良懿, 等. 基于涡度相关技术测算地表碳通量研究进展. 世界林业研究, 2010, 23(3): 24-28
[18] 石培礼, 孙晓敏, 徐玲玲, 等. 西藏高原草原化嵩草草甸生态系统CO₂净交换及其影响因子. 中国科学: D辑: 地球科学, 2006, 36(增刊1): 194-203
[19] 张法伟, 李英年, 曹广民, 等. 青海湖北岸高寒草甸草原生态系统CO₂通量特征及其驱动因子. 植物生态学报, 2012, 36(3): 187-198
[20] 朱志鹍, 马耀明, 胡泽勇, 等. 青藏高原那曲高寒草甸生态系统CO₂净交换及其影响因子. 高原气象, 2015, 34(5): 1217-1223
[21] 汪文雅, 郭建侠, 王英舜, 等. 锡林浩特草原CO₂通量特征及其影响因素分析. 气象科学, 2015, 35(1): 100-107
[22] 李阳, 景元书, 秦奔奔. 低丘红壤区农田水热通量变化特征及气候学足迹. 应用生态学报, 2017, 28(1): 180-190
[23] Sun PF, Qu Z, Yuan C, et al. Meteorological tower observed CO₂ flux and footprint in the forest of Xiao-xing’an Mountains, Northeast China: Indication of the forest’s CO₂ sequestration capability. Journal of Meteo-rological Research, 2023, 37: 126-140
[24] Kormann R, Meixner FX. An analytical footprint model for non-neutral stratification. Boundary-layer Meteorology, 2001, 99: 207-224
[25] Schmid HP, Lloyd CR. Spatial representativeness and the location bias of flux footprints over in homogeneous areas. Agricultural and Forest Meteorology, 1999, 93: 195-209
[26] Hsieh CI, Katul G, Chi TW. An approximate analytical model for footprint estimation of scalar fluxes in thermally stratified atmospheric flows. Advances in Water Resources, 2000, 23: 765-772
[27] Horst TW, Weil JC. Footprint estimation for scalar flux measurements in the atmospheric surface layer. Boundary-layer Meteorology, 1992, 59: 276-296
[28] Kljun N, Calanca P, Rotach MW, et al. The simple two-dimensional parameterisation for Flux Footprint Prediction (FFP). Geoscientific Model Development, 2015, 8: 3695-3713
[29] 龚笑飞, 陈丽萍, 莫路锋. 基于FSAM模型的毛竹林碳通量贡献区研究. 西南林业大学学报, 2015, 35(6): 37-44
[30] 吴志祥, 陈帮乾, 杨川, 等. 海南岛橡胶林通量足迹与源区分布研究. 热带生物学报, 2012, 3(1): 42-50
[31] 陈丽萍, 李平衡, 莫路锋, 等. 基于通量源区模型的雷竹林生态系统碳通量信息提取. 浙江农林大学学报, 2016, 33(1): 1-10
[32] 魏远, 高升华, 张旭东, 等. 基于FSAM模型的岳阳地区美洲黑杨人工林通量观测源区分布. 林业科学, 2012, 48(2): 16-21
[33] 纪小芳, 龚元, 郑翔, 等. 凤阳山针阔混交林通量观测源区分布及特征. 生态学报, 2020, 40(20): 7377-7388
[34] 夏嘉南, 李恒, 雷少刚, 等. 锡林浩特自然草地植株排布特征及简化应用. 生态学杂志, 2021, 40(10): 3381-3390
[35] 吕娜, 李政海, 鲍雅静, 等. 锡林浩特市不同景观类型草地对气候的响应. 中国草地学报, 2020, 42(1): 91-100
[36] 孙鹏飞, 范广洲, 曲哲, 等. 小兴安岭近地层湍流能谱特征. 高原气象, 2021, 40(2): 374-383
[37] 赵辉, 朱盛强, 刘贞, 等. 基于涡度相关技术的农田生态系统碳收支评估. 环境科学学报, 2021, 41(11): 4731-4739
[38] Falge E, Baldocchi D, Olson R, et al. Gap filling strategies for defensible annual sums of net ecosystem exchange. Agricultural and Forest Meteorology, 2001, 107: 43-69
[39] Reichstein M, Falge E, Baldocchi D, et al. On the separation of net ecosystem exchange into assimilation and ecosystem respiration: Review and improved algorithm. Global Change Biology, 2005, 11: 1424-1439
[40] Kljun N, Rotach MW, Schmid HP. A three-dimensional backward Lagrangian footprint model for a wide range of boundary-layer stratifications. Boundary-layer Meteorology, 2002, 103: 205-226
[41] Kljun N, Kastnerklein P, Fedorovich E, et al. Evaluation of Lagrangian footprint model using data from wind tunnel convective boundary layer. Agricultural and Forest Meteorology, 2004, 127: 189-201
[42] Kljun N, Calanca P, Rotach MW, et al. A simple parameterisation for flux footprint predictions. Boundary-layer Meteorology, 2004, 112: 503-523
[43] 周琪, 李平衡, 王权, 等. 西北干旱区荒漠生态系统通量贡献区模型研究. 中国沙漠, 2014, 34(1): 98-107
[44] 陈银萍, 牛亚毅, 李伟, 等. 科尔沁沙地自然恢复沙质草地生态系统碳通量特征. 高原气象, 2019, 38(3): 650-659
[45] Huang H, Zhang JS, Meng P, et al. Seasonal variation and meteorological control of CO₂ flux in a hilly plantation in the mountain areas of North China. Acta Meteorologica Sinica, 2011, 25: 238-248
[46] Jia BH, Xie ZH, Zeng YJ, et al. Diurnal and seasonal variations of CO₂ fluxes and their climate controlling factors for a subtropical forest in Ningxiang. Advances in Atmospheric Sciences, 2015, 32: 553-564

锡林浩特草原净生态系统碳交换量特征及源区分布

Characteristics of net ecosystem exchange and source distribution of Xilinhot grassland, China

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