红砂(Reaumuria soongorica)对大气CO2浓度升高及降水变化的光合生理响应

doi:10.7522/j.issn.1000-694X.2016.00091

摘要/Abstract

摘要： 未来大气CO₂浓度的显著升高将引起降雨格局的变化，这必将对荒漠生态系统产生严重影响。研究CO₂浓度及降水变化对荒漠优势植物的影响有助于预测荒漠生态系统对全球气候变化的响应。以荒漠优势植物红砂（Reaumuria soongorica）2年生苗木为试材，采用开顶式CO₂控制气室模拟CO₂浓度变化（350、550、700 μmol·mol^-1），研究了降水变化（-30%、-15%、0、+15%、+30%）及其与CO₂的协同作用对红砂光合特性及水分利用的影响。结果表明：CO₂浓度增加可显著提高红砂的光合速率，短时高浓度CO₂下红砂光合能力对水分的适应性较广，在降雨增加或减少时均表现出光合速率的增加，但长时高CO₂浓度会导致红砂光合能力下降，出现光合适应现象。高浓度CO₂下，红砂的蒸腾速率和气孔导度均有所下降，但降水的增加可抑制这种作用，有一定的补偿作用。CO₂增加会显著提高红砂的水分利用效率，降雨越少这种作用越明显，但长期CO₂作用会使这种效应有所减小。由此说明，未来CO₂浓度升高可在一定程度上提高红砂的光合能力，尤其是在降雨减少时因CO₂增加会提高水分利用效率而增强其抗旱性，从而增强红砂对未来暖干化气候的适应能力。

关键词: CO₂, 降雨量, 光合生理, 水分利用效率, 红砂(Reaumuria soongorica)

Abstract: Precipitation will be changed by elevated atmospheric CO₂ concentration in the future,which will seriously affect on the desert ecosystem.Our objective was to determine the interactive effects of elevated CO₂ concentration and changing precipitation on photosynthetic physiology of Reaumuria soongorica which is dominant species of desert,in order to evaluate the response of desert ecosystem to future climate change.Open top chambers were used to simulate the elevated CO₂ concentration (350,550,and 700 μmol·mol^-1) and changing precipitation (30%,15%,0,+15%,+30%).The photosynthetic physiology indexes such as net photosynthetic rate,transpiration rate,stomatal conductance and water use efficiency of R.soongorica seedlings were measured in June,July and August.The results showed that,with increased CO₂ concentration,net photosynthetic rate of R.soongorica increased obviously whether precipitation increased or decreased,which meant that the photosynthetic capacity of R.soongorica had a wide adaptability to precipitation under short elevated CO₂.But photosynthetic capacity of R.soongorica decreased under long elevated CO₂ and photosynthetic acclimation occurred during August.Transpiration rate and stomatal conductance decreased with increased CO₂ concentration,but the results were opposite with increased precipitation because of the compensation.Wateruse efficiency increased significantly with increased CO₂ concentration,especially under decreased precipitation treatment,but this reaction was smaller under long elevated CO₂ than under short elevated CO₂.The results suggest that at ambient CO₂ levels,photosynthetic ability of R.soongorica increases with precipitation increasing,and drought resistance increases with water use efficiency increasing under decreased precipitation,which enhance the ability of R.soongorica to climate warming and rying in the future.

Key words: CO₂, precipitation, photosynthetic physiology, water use efficiency, Reaumuria soongorica

中图分类号:

Q948.11

种培芳, 姬江丽, 李毅, 单立山, 苏世平. 红砂(Reaumuria soongorica)对大气CO₂浓度升高及降水变化的光合生理响应[J]. 中国沙漠, 2017, 37(4): 714-723.

Chong Peifang, Ji Jiangli, Li Yi, Shan Lishan, Su Shiping. Photosynthetic Physiology Responses to Elevated CO₂ Concentration and Changing Precipitation in Desert Plant Reaumuria soongorica[J]. JOURNAL OF DESERT RESEARCH, 2017, 37(4): 714-723.

参考文献

[1] IPCC.Climate Change 2007:The Physical Science Basis,Summary for Policy Maker[R].IPCC WGI fourth assessment report,2007.
[2] Meehl G A,Stocker T F,Collins W D,et al.Global climate projections[M]//Solomon S,Qin D,Manning M,Chen Z,et al.Climate Change 2007:The Physical Science Basis.Contribution of Working Group I to the Fourth Annual Assessment Report of the Intergovernmental Panel on Climate Change.Cambridge,UK:Cambridge University Press,2007:747-845.
[3] Cheng W G,Sakai H,Yagi K,et al.Interaetions of elevated CO₂ and night temperature on rice growth and yield[J].Agriculture and Forest Meteoroogyl,2009,149:51-58.
[4] 张学霞,杨璐璐,华开.CO₂浓度对高羊茅抗旱性及水分利用效率的影响分析[J].草地学报,2015,23(3):502-509.
[5] Ainsworth E A,Rogers A.The response of photosynthesis and stomatal conductance to rising CO₂:mechanisms and environmental interactions[J].Plant,Cell & Environment,2007,30:258-270.
[6] 陈威霖,江志红.全球海气耦合模式对中国区域年代际气候变化预测能力的评估[J].气候与环境研究,2012,17(1):81-91.
[7] 王澄海,李健,李小兰,等.近50 a中国降水变化的准周期性特征及未来的变化趋势[J].干旱区研究,2012,29(1):1-10.
[8] Zerihun A,Montagu K D,Hofemann M B.Patterns of below-and above-ground biomass in Eucalyptus populnea woodland communities of northeast Australia along a rainfall gradient[J].Ecosystems,2008,9(4):501-515.
[9] Bachman S,Heisler-white J L,Pendall E.Elevated carbon dioxide alters impacts of precipitation pulse on ecosystem photosymthesis and respiration in a semi arid grassland[J].Oecologia,2010,612(3):791-802.
[10] Wu F Z,Bao W K,Li F L.Effect of water stress and nitrogen supply on leaf gas exchange and fluorescence parameters of Sophora davidii seedlings[J].Photosynthetica,2008,46:40-48.
[11] 毛伟,李玉霖,孙殿超,等.养分和水分添加后沙质草地不同功能群植物地上生物量变化对群落生产力的影响[J].中国沙漠,2016,36(1):27-33.
[12] Naumburg E,Housman D C,Huxman T E,et al.Photosynthetic responses of Mojave Desert shrubs to free air CO₂ enrichment are greatest during wet years[J].Global Change Biology,2003,9:276-285.
[13] 常兆丰,韩福贵,仲生年.民勤荒漠区气候变化对全球变暖的响应[J].中国沙漠,2011,31(2):505-510.
[14] 任会利,李萍,申卫军,等.荒漠生态系统对大气CO₂浓度升高响应的干湿年差异[J].热带亚热带植物学报,2006,14(5):389-396.
[15] Hamerlynck E P,Huxman T E,Nowak R S.Photosynthetic responses of Larrea tridentata to a step-increase in atmospheric CO₂ at the Nevada Desert FACE Facility[J].Journal of Arid Environment,2000,44:425-436.
[16] 刘玉冰,张腾国,李新荣,等.红砂(Reaumuria soongorica)忍耐极度干旱的保护机制:叶片脱落和茎中蔗糖累积[J].中国科学(C辑):生命科学,2006,36(4):328-333.
[17] 种培芳,李毅,苏世平,等.红砂3个地理种群的光合特性及其影响因素[J].生态学报,2010,30(4):914-922.
[18] 种培芳,苏世平,李毅.4个地理种群红砂的抗旱性综合评价[J].草业学报,2011,20(5):26-33.
[19] 常兆丰,韩福贵,仲生年.民勤荒漠区气候变化对全球变暖的响应[J].中国沙漠,2011,31(2):505-510.
[20] Wang R Z,Gao Q.Photosynthesis,transpiration and water use efficiency in two divergent Leymus chinensis populations from northeast China[J].Photosynthetica,2001,39:123-126.
[21] 肖强,叶文景,朱珠,等.利用数码相机和Photoshop软件非破坏性测定叶面积的简便方法[J].生态学杂志,2005,24(6):711-714.
[22] Xu C G,Gertner G Z,Scheller R M.Potential effects of interaction between CO₂ and temperature on forest landscape response to global warming[J].Global Change Biology,2007,13(7):1469-1483.
[23] Leakey A D B,Bishop K A,Ainsworth E A. A multi-biome gap in understanding of crop and ecosystem responses to elevated CO₂[J].Current Opinion in Plant Biology,2012,15(3):228-236.
[24] Morgan J A,Lecain D R,Mosier A R,et al.Elevated CO₂ enhances water relations and productivity and affects gas exchange in C₃ and C₄ grasses of the Colorado shortgrass steppe[J].Global Change Biology,2001,7(4):451-466.
[25] Luo Y Q,Hui D F,Zhang D Q. Elevated CO₂ stimulates net accumulations of carbon and nitrogen in land ecosystems:a meta-analysis[J].Ecology,2006,87(1):53-63.
[26] Poorter H,Pérez-Soba M.The growth response of plants to elevated CO₂ under non-optimal environmental conditions[J].Oecologia,2001,129(1):1-20.
[27] Atwell B J,Henery M L,Rogers G S,et al.Canopy development and hydraulic function in eucalyptus tereticornis grown in drought in CO₂-enriched atmospheres[J].Functional Plant Biology,2007,34(12):1137-1149.
[28] Xu Z Z,Zhou G S,Wang Y H.Combined effects of elevated CO₂ and soil drought on carbon and nitrogen allocation of the desert shrub Caragana intermedia[J].Plant and Soil,2007,301(1/2):87-97.
[29] Erice G,Irigoyen J J,Sánchez-Díaz M,et al.Effect of drought,elevated CO₂ and temperature on accumulation of N and vegetative storage proteins (VSP) in taproot of nodulated alfalfa before and after cutting[J].Plant Science,2007,172(5):903-912.
[30] 王慧,周广胜,蒋延玲,等.降水与CO₂浓度协同作用对短花针茅光合特性的影响[J].植物生态学报,2012,36(7):597-606
[31] Herrick J D,Thomas R B.Leaf senescence and lateseason net photosynthesis of sun and shade leaves ofoverstory sweetgum (Liquidambar styraciflua) grown in elevated and ambient carbon dioxide concentrations[J].Tree Physiology,2003,23,109-118.
[32] Madore M A,Lucas W J.Carbon Partitioning and Source-sink Interactions in Plants[J].American Society of Plant Physiologists,Rockville,USA.1995,287.
[33] Oksanen E,Riikonen J,Kaakinen S,et al.Structural characteristics and chemical composition of birch (Betula pendula) leaves are modified by increasing CO₂ and ozone[J].Global Change Biology,2005,11:732-748.
[34] 刘玉英,李卓琳,韩佳育,等.模拟降雨量变化与CO₂浓度升高对羊草光合特性和生物量的影响[J].草业学报,2015,24(11):128-136.
[35] 廖建雄,王根轩.干旱、CO₂和温度升高对春小麦光合、蒸发蒸腾及水分利用效率的影响[J].应用生态学报,2002,13(5):547-550.
[36] 林祥磊,许振柱,王玉辉,等.羊草(Leymus chinensis)叶片光合参数对干旱与复水的响应机理与模拟[J].生态学报,2008,22(10),4718-4724.
[37] 王建林,温学发.气孔导度对CO₂浓度变化的模拟及其生理机制[J].生态学报,2010,30(17):4815-4820.
[38] Berryman C A,Eamus D,Duff G A.Stomatal responsesto a range of variables in two tropical tree species grownwith CO₂ enrichment[J].Journal of Experimental Botany,1994,45,539-546.
[39] Morison J I L,GIfford R M.Stomatal sensitivity to carbondioxide and humidity:a comparison of two C₃ andtwo CC₄ grass species[J].Plant Physiology,1983,71,789-796.
[40] Manderscheid R,Erbs M,Weigal H J.Interactive effectsof free-air CO₂ enrichment and drought stress on maizegrowth[J].European Journal of Agronomy,2014,52:11-21.
[41] Ogaya R,Pe uelas J.Comparative field study of Quercus ilex and Phillyrea latifolia:photosynthetic response toexperimental drought conditions[J].Environmental and Experimental Botany,2003,50:137-148.
[42] 蒋高明,董鸣.沿中国东北样带(NECT)分布的若干克隆植物与非克隆植物光合速率与水分利用效率的比较[J].植物学报,2000,42(8):855-861.
[43] 种培芳.荒漠植物红砂、白刺和沙拐枣抗旱指标及抗旱性综合评价研究[D].兰州:甘肃农业大学,2010.
[44] Ainsworth E A,Davey P A,Hymus G J,et al.Is stimulation of leaf photosynthesis by elevated carbon dioxide concentration maintained in the long term?A test with Lolium perenne grown for 10 years at two nitrogen fertilization levels under free air CO₂ enrichment (FACE)[J].Plant,Cell & Environment,2003,26:705-714.
[45] Duursma R A,Barton C V M,Eamus D,et al.Rooting depth explains CO₂×drought interaction in Eucalyptus saligna[J].Tree Physiology,2011,31(9):922-931.

红砂(Reaumuria soongorica)对大气CO₂浓度升高及降水变化的光合生理响应

Photosynthetic Physiology Responses to Elevated CO₂ Concentration and Changing Precipitation in Desert Plant Reaumuria soongorica

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王姣月, 秦树高, 张宇清. 毛乌素沙地植被水分利用效率的时空格局[J]. 中国沙漠, 2020, 40(5): 120-129.
[2]	吴丽丽, 刘丹一, 杨文斌, 王涛, 李卫, 冯金超, 冯伟. 降雨量、土壤蓄水量对流动沙地土壤水分深层渗漏的影响[J]. 中国沙漠, 2020, 40(3): 210-218.
[3]	李端, 司建华, 张小由, 高雅玉, 罗欢, 秦洁, 任立新. 胡杨(Populus euphratica)对干旱胁迫的生态适应[J]. 中国沙漠, 2020, 40(2): 17-23.
[4]	陈娟丽, 赵学勇, 刘新平, 张雅秋, 罗永清, 张蕊, 张润霞, 于海伦. 降雨量对科尔沁沙地3种沙生植物生长和生理的影响[J]. 中国沙漠, 2019, 39(5): 163-173.
[5]	曹静, 阿拉木萨, 张圆浩. 科尔沁沙地沙丘水分深层渗漏量和侧向运移量[J]. 中国沙漠, 2019, 39(3): 41-47.
[6]	张蕊, 赵学勇, 左小安, 刘新平, 曲浩, 马旭君, 刘良旭, 陈娟丽, 刘立平. 荒漠草原沙生针茅(Stipa glareosa)群落物种多样性和地上生物量对降雨量的响应[J]. 中国沙漠, 2019, 39(2): 45-52.
[7]	徐翀, 庾强, 左小安, 张春萍, 牛得草. 氮素添加对草原不同冠层植物光合作用的影响[J]. 中国沙漠, 2019, 39(1): 135-141.
[8]	牛亚毅, 李玉强, 王旭洋, 龚相文, 杨欢. 沙地玉米水分利用效率日变化特征[J]. 中国沙漠, 2019, 39(1): 142-148.
[9]	苏铭, 单立山, 张正中, 王洋, 王珊, 种培芳. 荒漠环境梯度下联生红砂(Reaumuria soongorica)、珍珠(Salsola passerina)荧光特性[J]. 中国沙漠, 2018, 38(6): 1259-1266.
[10]	潘莹萍, 陈亚鹏, 王怀军, 任志国. 胡杨(Populus euphratica)叶片结构与功能关系[J]. 中国沙漠, 2018, 38(4): 765-771.
[11]	孟阳阳, 刘冰, 刘婵. 水盐梯度下湿地柽柳(Tamarix ramosissima)光合响应特征和水分利用效率[J]. 中国沙漠, 2018, 38(3): 568-577.
[12]	金艳霞, 王新平, 张亚峰, 潘颜霞, 虎瑞, 徐浩杰, 石薇. 红砂(Reaumuria soongorica)、珍珠(Salsola passerine)蒸腾耗水规律的尺度整合[J]. 中国沙漠, 2018, 38(2): 286-293.
[13]	冯云格, 王斌杰, 陈菁菁, 孙小妹, 陈年来. 日光温室香瓜茄(Solanum murcatum)叶片光合特性[J]. 中国沙漠, 2017, 37(5): 925-932.
[14]	曲浩, 赵哈林, 石永强, 高宝兰, 李莹, 姬明飞, 乌仁高娃, 李英. 沙埋对科尔沁沙地两种主要作物存活的影响及其光合生理响应[J]. 中国沙漠, 2017, 37(4): 698-704.
[15]	刘丹, 刘玉冰, 张雯莉. 红砂(Reaumuria soongorica)响应干旱和UV-B辐射双重胁迫的基因转录表达[J]. 中国沙漠, 2017, 37(4): 705-713.