土壤微量元素对CO<sub>2</sub>摩尔分数和温度升高响应的模拟试验

doi:10.16843/j.sswc.2022.03.007

摘要
图/表
参考文献
相关文章 (15)

全文: HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要研究土壤微量元素含量对CO₂摩尔分数和温度升高的响应，可为气候变化背景下农田土壤健康质量评价提供科学依据。以谷子（Setaria italica）为试验材料，设置3种气候模拟情景，即对照（400 μmol/mol CO₂摩尔分数，22 ℃大气温度）、仅CO₂摩尔分数升高（700 μmol/mol CO₂摩尔分数，22 ℃大气温度）和CO₂摩尔分数和温度双升高（700 μmol/mol CO₂摩尔分数，26 ℃大气温度）和2种水分条件，即充分供水（70%田间持水量）和轻度干旱（50%田间持水量），研究谷子农田土壤微量元素对CO₂摩尔分数升高和增温的响应。结果表明：1）仅CO₂摩尔分数升高较对照处理增加土壤有效态微量元素含量，其中，在轻度干旱胁迫下土壤有效铜和锌含量分别显著增加20.4%和107.4%（P<0.05），在充分供水条件下二者分别显著增加18.6%和133.4%（P<0.05）；2） CO₂摩尔分数和温度双升高较对照处理增加土壤有效态锰、铜和锌含量，但降低土壤有效铁含量；其中，充分供水条件下土壤有效铜和锌含量分别显著增加19.4%和109.3%（P<0.05），轻度干旱条件下土壤有效锰、铜和锌含量分别显著增加14.4%、14.5%和118.3%（P<0.05）；3）充分供水条件下土壤有效锌含量和谷子地下生物量呈显著负相关，而其与土壤有机质含量呈显著正相关；轻度干旱条件下土壤有效锰与谷子地上生物量呈显著负相关。总之，CO₂摩尔分数升高在不同程度上增加土壤有效态微量元素含量，但在CO₂摩尔分数升高的基础上增温则使土壤有效态微量元素含量的增幅减小；与土壤有效铁和有效锰相比，土壤有效铜和有效锌对CO₂摩尔分数升高和增温的响应更为敏感。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	赵苗苗
	郑粉莉
	王婧
	王雪松
	焦健宇
	魏晗梅

关键词 ： CO₂摩尔分数, 温度, 土壤微量元素, 盆栽试验

Abstract：[Background] The fifth IPCC assessment report pointed out that the atmospheric CO₂ concentration would exceed 700 μmol/mol at the end of the 21st century, and the global mean surface temperature would rise by 0.3℃-4.8℃ on the current basis. Climate change induces multiple stresses on plant growth and soil health quality. It is well known that soil microelements are crucial indicators for plant growth and soil health quality. Previous studies generally focused on the isolated effect of elevated CO₂ concentration and temperature on soil microelement contents. Therefore, clarifying the coupling effects of elevated CO₂ and temperature on soil microelements is crucial for the evaluation of soil health quality under the climate change background.[Methods] A pot experiment was conducted in artificial climate chambers to investigate the coupling effects of elevated CO₂ and temperature on 4 kinds of soil microelement availability (Fe, Mn, Cu and Zn). The experimental treatments included 3 climate scenarios, i.e., the controlled experiment (400 μmol/mol CO₂ and 22℃, CK), elevated CO₂ (700 μmol/mol CO₂ and 22℃, EC), both elevated CO₂ and temperature (700 μmol/mol CO₂ and 26℃, EC+ET), each climate scenario covered two water conditions, i.e., sufficient water supply (70% of field capacity) and light water stress (50% of field capacity). The total and available contents of soil microelements were measured at maturity stage of millet.[Results] 1) Compared with CK, only elevated CO₂ treatment increased soil available microelement contents under the 2 water conditions. Under the light water stress condition, elevated CO₂significantly increased the contents of soil available Cu and Zn by 20.4% and 107.4%, respectively (P<0.05); and under the sufficient water supply condition, elevated CO₂ concentration significantly increased 18.6% and 133.4% of soil available Cu and Zn contents, respectively (P<0.05). 2) Compared with CK, both elevated CO₂ and temperature increased soil available Mn, Cu and Zn contents under the two water conditions, while it reduced the soil available Fe content. Under the sufficient water supply condition, soil available Cu and Zn contents significantly increased by 19.4% and 109.3%, respectively (P<0.05). Under the light water stress condition, soil available Mn, Cu and Zn contents significantly increased by 14.4%, 14.5% and 118.3%, respectively (P<0.05). 3) Under the sufficient water supply condition, soil available Zn content had a significantly negative correlation with millet belowground biomass, while it had a significantly positive correlation with soil organic matter content; under the light water stress condition, soil available Mn content showed a significant decreasing trend with the increase of millet aboveground biomass.[Conclusions] Elevated CO₂ promotes the accumulation of soil available microelement contents, but this promotion is weakened when the temperature increases simultaneously. Compared with soil available Fe and Mn contents, soil available Cu and Zn contents are more sensitive to elevated CO₂ and temperature. These results may enhance the understandings on the impacts of climate change on soil microelement availability.

Key words： CO₂ concentration temperature soil microelement pot experiment

收稿日期: 2021-12-01

PACS:

S158.3

基金资助:中国科学院国际合作局国际伙伴计划项目"气候变化对中国黄河中游和塞尔维亚萨瓦河流域农业水土环境影响评估及适应对策"（161461KYSB20170013）

通讯作者: 郑粉莉(1960—),女,博士,研究员。主要研究方向:土壤侵蚀过程,预报和环境效应评价。E-mail:flzh@ms.iswc.ac.cn E-mail: flzh@ms.iswc.ac.cn

作者简介: 赵苗苗(1998—),女,硕士研究生。主要研究方向:气候变化与土壤生态。E-mail:zhmm@nwafu.edu.cn

引用本文:

赵苗苗, 郑粉莉, 王婧, 王雪松, 焦健宇, 魏晗梅. 土壤微量元素对CO₂摩尔分数和温度升高响应的模拟试验[J]. 中国水土保持科学, 2022, 20(3): 53-61.
ZHAO Miaomiao, ZHENG Fenli, WANG Jing, WANG Xuesong, JIAO Jianyu, WEI Hanmei. An experimental study on the responses of soil microelement availability to elevated CO₂ concentration and temperature rising. SSWC, 2022, 20(3): 53-61.

链接本文:

http://journal12.magtechjournal.com/Jweb_stbc/CN/10.16843/j.sswc.2022.03.007 或 http://journal12.magtechjournal.com/Jweb_stbc/CN/Y2022/V20/I3/53

[1]	PACHAURI R K, MEYER L A. Climate change 2014:Synthesis report. Contribution of working groups Ⅰ, Ⅱ and Ⅲ to the fifth assessment report of the intergovernmental panel on climate change[R]. Cambridge,UK:Cambridge University Press, 2015:151.
[2]	赵茹欣,王会肖,董宇轩.气候变化对关中地区粮食产量的影响及趋势分析[J].中国生态农业学报,2020,28(4):467. ZHAO Ruxin, WANG Huixiao, DONG Yuxuan. Impact of climate change on grain yield and its trend across Guanzhong region[J]. Chinese Journal of Eco-Agriculture,2020,28(4):467.
[3]	宗毓铮,杨琦,常翠翠,等.大气CO2浓度升高对干旱条件下冬小麦叶片光合适应的影响[J].应用生态学报,2021,32(12):4370. ZONG Yuzeng,YANG Qi, CHANG Cuicui et al. Effects of elevated CO2 concentration on photosynthetic acclimation of winter wheat under drought condition[J]. Chinese Journal of Applied Ecology, 2021,32(12):4370.
[4]	闫鹏,孙小诺,杜雄,等.晚冬早春阶段增温对冬小麦光合性能及旗叶衰老的调控作用[J].中国农业科学,2019,52(15):2581. YAN Peng, SUN Xiaonuo, DU Xiong et al. Effects of artificial warming from late-winter to early-spring on photosynthesis and flag leaf senescence of winter wheat[J]. Scientia Agricultura Sinica,2019,52(15):2581.
[5]	冯倩,周娅,张晓媛,等.大气CO2浓度升高对旱作玉米不同生育期土壤碳氮及组分的影响[J].水土保持学报,2019,33(3):221. FENG Qian, ZHOU Ya, ZHANG Xiaoyuan et al. Effects of elevated CO2 on soil carbon and nitrogen and its fractions at different growth stages of maize in a semiarid area[J]. Journal of Soil and Water Conservation,2019, 33(3):221.
[6]	THORNTON I. Geochemistry and the mineral nutrition of agricultural livestock and wildlife[J].Applied Geochemistry, 2002(17):1017.
[7]	廖自基. 微量元素的环境化学及生物效应[M]. 北京:环境科学出版社, 1992:175. LIAO Ziji. Environment Chemistry and Biology Effect of microelement[M]. Beijing:Chinese Environment Science Press, 1992:169.
[8]	李垄清, 吴正云, 张强, 等. 气候变化对作物矿质元素利用率影响研究进展[J]. 生态学报, 2014, 34(5):1053. LI Longqing, WU Zhengyun, ZHANG Qiang, et al. State-of-the-art review of the impact of climatic change on bioavailability of mineral elements in crops[J]. Acta Ecologica Sinica, 2014, 34(5):1053.
[9]	任思荣, 朱建国, 李辉信, 等. 大气CO2浓度升高对稻田土壤中微量元素的影响[J]. 生态环境, 2007,16(3):982. REN Sirong, ZHU Jianguo, LI Huixin, et al. Effect of free-air CO2 enrichment (FACE) on microelements in paddy soil[J]. Ecology and Environment, 2007,16(3):982.
[10]	王小治, 孙伟, 封克, 等. 大气CO2浓度升高和施氮对麦季土壤有效态微量元素含量的影响[J]. 农业环境科学学报, 2008,27(2):530. WANG Xiaozhi, SUN Wei, FENG Ke, et al. Effect of CO2 enrichment and N supply on concentrations of DTPA-extractable microelements of soils in wheat season[J]. Journal of Agro-Environment Science, 2008,27(2):530.
[11]	李裕, 张强, 王润元, 等. 气候变暖对春小麦籽粒痕量元素利用率的影响[J]. 农业工程学报, 2011, 27(12):96. LI Yu, ZHANG Qiang, WANG Runyuan, et al. Influence of climatic warming on accumulation of trace elements in spring wheat (Triticum aestivum L.)[J]. Transactions of the CSAE, 2011, 27(12):96.
[12]	国家气象科学数据中心. 中国地面气象站逐小时观测资料[EB/OL]. (2011-01-01)[2021-10-07]. http://data.cma.cn/dataService/cdcindex/datacode/A.0012.0001/show_value/normal.html. China Meteorological Data Service Center. Hourly Data From Surface Meteorological Stations in China[EB/OL]. (2011-01-01)[2021-10-07]. http://data.cma.cn/dataService/cdcindex/datacode/A.0012.0001/show_value/normal.html.
[13]	王永丽, 王珏, 杜金哲, 等. 不同时期干旱胁迫对谷子农艺性状的影响[J]. 华北农学报, 2012, 27(6):125. WANG Yongli, WANG Jue, DU Jinzhe, et al. Effects of drought stress at different periods on agronomic traits of millet[J]. Acta Agriculturae Boreali-Sinica, 2012, 27(6):125.
[14]	袁蕊, 郝兴宇, 胡晓雪, 等. 干旱对谷子灌浆期光合生理及生长发育的影响[J]. 山西农业大学学报(自然科学版) 2017, 37(6):396. YUAN Rui, HAO Xingyu, HU Xiaoxue, et al. Effect of drought on photosynthetic physiology and growth of millet during grain filling[J]. Journal of Shanxi Agricultural University (Natural Science Edition), 2017, 37(6):396.
[15]	刘清, 王子健, 汤鸿霄. 重金属形态与生物毒性及生物有效性关系的研究进展[J]. 环境科学, 1996(1):89. LIU Qing, WANG Zijian, TANG Hongxiao. Research progress in heavy metal speciation and toxicity and bioavailability of heavy metals[J]. Environmental Science, 1996(1):89.
[16]	SARDANS J, PENUELAS J, ESTIARTE M, et al. Changes in soil enzymes related to C and N cycle and in soil C and N content under prolonged warming and drought in a Mediterranean shrubland[J]. Applied Soil Ecology, 2008, 39(2):223.
[17]	ASENSIO D, PENUELAS J, OGAYA R, et al. Seasonal soil and leaf CO2 exchange rates in a Mediterranean holm oak forest and their responses to drought conditions[J]. Atmos Environ, 2007(41):2447.
[18]	SARDANS J, PENUELAS J, PRIETO P, et al. Changes in Ca, Fe, Mg, Mo, Na, and S content in a Mediterranean shrubland under warming and drought[J]. Journal of Geophysical Research-Biogeosciences, 2008, 113(G3).
[19]	LIEFFERING M, KIM H, KOBAYASHI K, et al. The impact of elevated CO2 on the elemental concentrations of field-grown rice grains[J]. Field Crops Research, 2004, 88(2):279.
[20]	BAGHOUR M, MORENO D A, HERNáNDEZ J, et al. Influence of root temperature on phytoaccumulation of As, Ag, Cr, and Sb in potato plants (Solanum tuberosum L. var. Spunta).[J]. Journal of Environmental Science and Health, 2001, 36(7):1389.
[21]	ALBRECHT A, SCHULTZE U, LIEDGENS M, et al. Incorporating soil structure and root distribution into plant uptake models for radionuclides:Toward a more physically based transfer model[J]. J Environ Radioact, 2002, 59(3):329.
[22]	ORGEAS J, BONIN O G. Seasonal and spatial patterns of foliar nutrients in cork oak (Quercus suber L.) growing on siliceous soils in Provence (France)[J]. Plant Ecology, 2003, 164(2):201.
[23]	刘铮. 微量元素的农业化学[M]. 北京:农业出版社, 1991:171. LIU Zheng. Agricultural chemistry of microelement[M]. Beijing:Agriculture Press, 1991:171.
[24]	RENGEL Z. Availability of Mn, Zn and Fe in the rhizosphere[J]. Journal of Soil Science & Plant Nutrition, 2015, 15(2).
[25]	庞静, 朱建国, 谢祖彬, 等. 自由空气CO2浓度升高对水稻营养元素吸收和籽粒中营养元素含量的影响[J]. 中国水稻科学, 2005, 19(4):350. PANG Jing, ZHU Jianguo, XIE Zubin, et al. Effects of elevated pCO2 on nutrient up take by rice and nutrient contents in rice grain[J]. Chinese Journal of Rice Science, 2005, 19(4):350.
[26]	GUO Jia, ZHANG Mingqian, WANG Xiaowen, et al. A possible mechanism of mineral responses to elevated atmospheric CO2 in rice grains[J]. Journal of Integrative Agriculture, 2015, 14(1):50-57.
[27]	李春华, 曾青, 沙霖楠, 等. 大气CO2浓度和温度升高对水稻体内微量元素累积的影响[J]. 农业环境科学学报, 2017, 36(6):1021. LI Chunhua, ZENG Qing, SHA Linnan, et al. Influence of elevated atmospheric CO2 and temperature on microelement accumulation in rice[J]. Journal of Agro-Environment Science, 2017, 36(6):1021.
[28]	王晓波, 宋凤斌, 朱先灿. 锌在水稻各生育时期不同器官的分布规律[J]. 灌溉排水学报, 2012, 31(2):30. WANG Xiaobo, SONG Fengbin, ZHU Xiancan. Effect of fertilizer amount on dynamic change characteristic of soil nitrogen under film hole irrigation[J]. Journal of Irrigation and Drainage, 2012, 31(2):30.