中国北方农牧交错带草本植物δ15N梯度变化及其对环境信息的指示

doi:10.7523/j.issn.2095-6134.2018.06.006

中国科学院大学学报 ›› 2018, Vol. 35 ›› Issue (6): 749-760.DOI: 10.7523/j.issn.2095-6134.2018.06.006

中国北方农牧交错带草本植物δ¹⁵N梯度变化及其对环境信息的指示

刘贤赵^1,2, 张勇¹, 宿庆³, 李振国¹, 冯腾¹, 宋焱¹

1 湖南科技大学资源环境与安全工程学院, 湖南湘潭 411201;
2 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室, 南京 210000;
3 湖南科技大学生命科学学院, 湖南湘潭 411201

收稿日期:2017-07-24 修回日期:2017-11-30 发布日期:2018-11-15
通讯作者: 刘贤赵
基金资助:
土壤与农业可持续发展国家重点实验室基金（Y412201416）、湖南省自然科学基金（2015JJ2062）和湖南省教育厅重点项目（14A054）资助

Gradient variation of δ¹⁵N values in herbs and its indication to environmental information in the agro-pastoral ecotone in the north of China

LIU Xianzhao^1,2, ZHANG Yong¹, SU Qing³, LI Zhenguo¹, FENG Teng¹, SONG Yan¹

1 School of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China;
2 State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210000, China;
3 College of Life Science, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China

Received:2017-07-24 Revised:2017-11-30 Published:2018-11-15

摘要/Abstract

摘要： 植物氮同位素组成（δ¹⁵N）是气候环境变化和生态系统氮循环的综合结果，开展典型区域植物δ¹⁵N的研究可以指示气候环境的变化。沿400mm等降水量线测定中国北方农牧交错带草本植物和土壤的δ¹⁵N值，并将δ¹⁵N值与气候环境因子进行统计分析。结果表明：1）样带草本植物δ¹⁵N值分布在-5.5‰~15.3‰之间（平均值4.02‰），其中，C3草本植物的δ¹⁵N值范围（-5.5‰~15.0‰）比C4植物（-2.85‰~15.3‰）宽，但平均值显著低于C4植物；土壤δ¹⁵N值范围为1.42‰~9.11‰，平均值为4.74‰；2） C3、C4草本植物整体以及2种广适性草本植物的δ¹⁵N值与经纬度均呈显著正相关性（C4草本植物δ¹⁵N值与经度关系不显著除外），但与海拔关系微弱；3）植物/土壤的δ¹⁵N值均随温度升高呈显著偏负趋势，其中C3、C4草本植物的温度系数分别为-0.41‰/℃和-0.39‰/℃，但植物δ¹⁵N值随降水增加呈微弱偏负趋势；4）偏相关分析显示，在控制降水变化后，草本植物δ¹⁵N值与年平均温度的相关性更加显著，而在控制温度变化后，植物δ¹⁵N值与年平均降水量的关系更加微弱。研究表明在水分变化相对较小的条件下，温度可能是控制本样带植物δ¹⁵N值变化的关键因子，意味着植物δ¹⁵N信息可以指示中国北方农牧交错带温度的变化。

关键词: 氮同位素, 草本植物, 环境信息, 北方农牧交错带

Abstract: Nitrogen isotope signature (δ¹⁵N) in plants is an effective indicator for evaluating ecosystem nitrogen cycling and monitoring changes of climate environment. Investigation of δ¹⁵N for herbs and soils was conducted along the 400mm isoline of annual mean precipitation in the agro-pastoral ecotone in the north of China(APENC). The relationships between the δ¹⁵N values and environmental factors were analyzed. The main results are shown as follows. 1)The δ¹⁵N values of all herbs in this region ranged between -5.5‰ and -15.3‰ (the mean value:4.02‰). The C3 herbs had a wider range of the δ¹⁵N value (-5.5‰-15.0‰) and a significantly lower mean value than the C4 herbs (-2.85‰-15.3‰). The soil δ¹⁵N value varied from 1.42‰ to 9.11‰ with a mean value of 4.74‰. 2)The δ¹⁵N values of the C3 and C4 herbs and 2 eurytopic species were all positively correlated with the latitude and longitude(except the relationship between δ¹⁵N of C4 herbs and longitude), while displayed a weak relationship with the altitude. 3)The δ¹⁵N values of herbs amd soil showed obviously negative trends with temperature. The δ¹⁵N-temperature coefficients for C3 and C4 herbs were -0.41‰/℃ and -0.39‰/℃, respectively. However, the δ¹⁵N values of herbs showed a weak negative trend with precipitation. 4)Partial correlation analysis showed that the correlation between δ¹⁵N and the annual mean temperature was more significant after controlling precipitation. However, the relation between herbs δ¹⁵N and the annual mean precipitation was weaker after controlling temperature. This study indicates that the temperature may be a key factor affecting plant δ¹⁵N under the condition of little moisture change, and the δ¹⁵N value may provide an indication to temperature changes in APENC.

Key words: nitrogen isotope, herbs, environmental information, agro-pasture ecotone in the north of China

中图分类号:

P597.2

刘贤赵, 张勇, 宿庆, 李振国, 冯腾, 宋焱. 中国北方农牧交错带草本植物δ¹⁵N梯度变化及其对环境信息的指示[J]. 中国科学院大学学报, 2018, 35(6): 749-760.

LIU Xianzhao, ZHANG Yong, SU Qing, LI Zhenguo, FENG Teng, SONG Yan. Gradient variation of δ¹⁵N values in herbs and its indication to environmental information in the agro-pastoral ecotone in the north of China[J]. , 2018, 35(6): 749-760.

参考文献

[1] Aranibar J N, Otter L, Macko S A, et al. Nitrogen cycling in the soil-plant system along a precipitation gradient in the Kalahari sands[J]. Global Change Biology, 2004, 10(3):359-373.
[2] Handley L L, Raven J A. The use of natural abundance of nitrogen isotopes in plant physiology and ecology[J]. Plant Cell & Environment, 2006, 15(9):965-985.
[3] Sah S P, Brumme R B. Altitudinal gradients of natural abundance of stable isotopes of nitrogen and carbon in the needles and soil of a pine forest in Nepal[J]. Journal of Forest Science, 2003, 49:19-26.
[4] Templer P H, Arthur M A, Lovett G M, et al. Plant and soil natural abundance δ¹⁵N:indicators of relative rates of nitrogen cycling in temperate forest ecosystems[J]. Oecologia, 2007, 153(2):399-406.
[5] Kahmen A, Wanek W, Buchmann N. Foliar δ¹⁵N values characterize soil N cycling and reflect nitrate or ammonium preference of plants along a temperate grassland gradient[J]. Oecologia, 2008, 156(4):861-870.
[6] Cheng S L, Fang H J, Yu G R, et al. Foliarand soil δ¹⁵N natural abundances provide field evidence onnitrogen dynamics in temperate and boreal forest ecosystems[J].Plant and Soil, 2010, 337:285-297.
[7] Liu W G, Wang Z. Nitrogen isotopic composition of plantsoil in the Loess Plateau and its responding to environmental change[J]. Chinese Science Bulletion, 2009, 54(2):272-279.
[8] Kang H Z, Liu C J, Yu W J, et al. Variation in foliar δ¹⁵N among oriental oak stands over eastern China:patterns and interactions[J]. Journal of Geochemical Exploration, 2011, 110:8-14.
[9] Liu X H, Zhao L J, Menassie G, et al. Foliar δ¹³C and δ¹⁵N values of C₃ plants in the Ethiopia Rift Valley and their environmental controls[J]. Chinese Science Bulletin, 2007, 52(9):1265-1273.
[10] Chang C C, McCormick P V, Newman S, et al. Isotopic indicators of environmental change in a subtropical wetland[J]. Ecological Indicators, 2009, 9(5):825-836.
[11] Makarov M I. The nitrogen isotopic composition in soils and plants:its use in environmental studies[J]. Eurasian Soil Science, 2009, 42(12):1335-1347.
[12] Wang L X, D'Odorico P, Ries L, et al. Patterns and implications of plant-soil δ¹³C and δ¹⁵N values in African savanna ecosystems[J]. Quaternary Research, 2010, 73(1):77-83.
[13] Fang Y T, Koba K, Yoh M, et al. Patterns of foliar δ¹⁵N and their control in Eastern Asian forests[J]. Ecological Research, 2013, 28(5):735-748.
[14] Yang Y H, Ji C J, Robinson D, et al. Vegetation and soil ¹⁵N natural abundance in alpine grasslands onthe Tibetan Plateau:patterns and implications[J]. Ecosystems, 2013, 16(6):1013-1024.
[15] Ariz I, Cruz C, Neves T, et al. Leaf δ¹⁵N as a physiological indicator of the responsiveness of N₂-fixing alfalfa plants to elevated CO₂, temperature and low water availability[J]. Frontiers in Plant Science, 2015, 6:1-10.
[16] Terwilliger V J, Eshetu Z, Colman A, et al. Reconstructing palaeoenvironment from δ¹³C and δ¹⁵N values of soil organic matter:a calibration from arid and wetter elevation transects in Ethiopia[J]. Geoderma, 2008, 147:197-210.
[17] Schatz A K, Zech M, Buggle B, et al. The late Quaternary loess record of Tokaj, Hungary:reconstructing palaeoenvironment, vegetation and climate using stable C and N isotopes and biomarkers[J]. Quaternary International, 2011, 240(1/2):52-61.
[18] Das O, Wang Y, Donoghue J, et al. Reconstruction of paleostorms and paleoenvironment using geochemical proxiesarchived in the sediments of two coastal lakes in northwest Florida[J]. Quaternary Science Reviews, 2013, 68(3):142-153.
[19] Liu J C, Liu W G. Soil nitrogen isotopic composition of the Xifeng loess-paleosol sequence and its potential for use as a paleoenvironmental proxy[J]. Quaternary International, 2017, 440:35-41.
[20] 尚晓冬, 时国, 韦恒叶. 贵阳花溪地区早三叠世碳、氧同位素特征及其古环境意义[J]. 中国科学院大学学报, 2015, 32(3):363-372.
[21] Amundson R, Austin A T, Schuur E A G, et al. Global parrerns of the isotopic composition of soil and plant nitrogen[J]. Global Biogeochem Cycles, 2003, 17(1):1-11.
[22] Amundson R. New insights into the global patterns of the isotopic composition of soil and plant nitrogen[J]. Esa Convention,2014,17(1):2076-2079.
[23] Swap R J, Aranibar J N, Dowty P R, et al. Natural abundance of ¹³C and ¹⁵N in C3 and C4 vegetation of southern Africa:patterns and implications[J]. Global Change Biology, 2004, 10(3):359-373.
[24] Craine J M, Elmore A J, Aidar M P, et al. Global patterns of foliar nitrogenisotopes and their relationshipswith climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability[J]. New Phytologist, 2009, 183(4):980-992.
[25] Peri P, Ladd B, Pepper D, et al. Carbon (δ¹³C)and nitrogen (δ¹⁵N) stable isotope compositionin plant and soil in Southern Patagonia's native forests[J]. Global Change Biology, 2012, 18(1):311-321.
[26] Martinelli L A, Piccolo M C, Townsend A R, et al. Nitrogen stable isotopic composition of leaves and soil:tropical versus temperate forests[J]. Biogeochemistry, 1999, 46(1-3):45-65.
[27] 刘艳杰, 许宁, 牛海山. 内蒙古草原常见植物叶片δ¹³C和δ¹⁵N对环境因子的响应[J]. 生态学报, 2016, 36(1):235-243.
[28] Xu Y, He J C, Cheng W X, et al. Natural ¹⁵N abundance in soils and plants in relation to N cyclingin a rangeland in Inner Mongolia[J]. Journal of Plant Ecology, 2010, 3(3):201-207.
[29] 刘贤赵, 王国安, 李嘉竹, 等. 中国北方农牧交错带C3草本植物δ¹³C与温度的关系及其对水分利用效率的指示[J]. 生态学报, 2011, 31(1):123-136.
[30] Cheng W X,Chen Q S,Xu Y Q, et al. Climate and ecosystem ¹⁵N natural abundance along a transectof Inner Mongolian grasslands:contrasting regional patternsand global patterns[J]. Global Biogeochemical Cycles, 2009, 23:1-11.
[31] Ma J Y, Sun W, Liu X N, et al. Variation in the stable carbon and nitrogen isotope composition of plants and soil along a precipitation gradient in Northern China[J]. PLoS ONE, 2012, 7(12):e51894. Doi:10.1371/journal.pone.0051894.
[32] Peterson B J, Fry B. Stable isotopes in ecosystem studies[J]. Annual Review of Ecology & Systematics, 1987, 18(1):293-320.
[33] Aranibar J N, Anderson I C, Epstein H E, et al. Niriogen isotope composition of soils, C₃ and C₄ plants along land use gradients in southern Africa[J]. Journal of Arid Environments, 2008, 72(4):326-337.
[34] Ometto J P H B, Ehleringer J R, Domingues T F,et al. The stable carbon and nitrogen isotopic composition of vegetation in tropical forests of the AmazonBasin, Brazil[J]. Biogeochemistry, 2006, 79(1/2):251-274.
[35] Houlton B Z, Sigman D M, Hedin L O. A climate-driven switch in plant nitrogen acquisition within tropical forest communities[J]. Proceedings of the National Academy of Sciences of the United States of America, 2007, 104(21):8902-8906.
[36] Sutton M A, Schjorring J K, Wyers G P. Plant-atmosphere exchange of ammonia[J]. Philosophical Transactions:Physical Sciences and Engineering, 1995, 351(1696):261-278.
[37] Bai E, Boutton TW, Liu F, et al. Spatial variation of the stable nitrogen isotope ratio of woody plants along a topoedaphic gradient in a subtropical savanna[J]. Oecologia, 2009, 159(3):493-503.
[38] Yi X F, Yang Y Q. Enrichement of stable carbon and nitrogen isotopes of plant populations and planteau pikas along altitudes[J]. Journal of Animal & Feedences, 2006, 15(4):661-667.
[39] Liu X Z, Wang G A, Li J Z, et al. Nitrogen isotope composition characteristics of modern plants andtheir variations along an altitudinal gradient in Dongling Mountain in Beijing. Science China-Earth Sciences, 2010, 53(1):128-140.

中国北方农牧交错带草本植物δ¹⁵N梯度变化及其对环境信息的指示

Gradient variation of δ¹⁵N values in herbs and its indication to environmental information in the agro-pastoral ecotone in the north of China

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