从树轮纤维素δ13C序列看树木生长对大气CO2浓度变化的响应

摘要/Abstract

摘要： 在新疆昭苏树轮碳同位素组成研究的基础上,初步分析了近280a以来云杉内外CO₂浓度比(C_i/C_a)、云杉内部CO₂浓度(C_i)和水分利用效率(A/g)的变化.结果表明,在整个分析时段内C_i/C_a相对恒定在0.2左右,暗示树木生长对大气CO₂浓度升高的基本响应策略;C_i和A/g都有较明显的升高趋势,说明可能有更多的碳被固定在树木之中;进一步分析表明,它们的这种趋势与大气CO₂浓度变化有关,从另一个侧面证明了人类活动释放的碳有一部分被树木所吸收.

关键词: 树轮, 碳同位素, 植物内外CO₂浓度比, 水分利用效率

Abstract: The well documented increase in CO₂ content of atmosphere since the beginning of industrialization has been variously attributed to the anthropogenic activities, such as agricultural explosion, global deforestation and enhanced fossil fuel combustion and so on. It was estimated that about one third of anthropogenic CO₂ released to atmosphere was taken up by terrestrial plants. To evaluate how the land carbon reservoir has been acting as a sink to the anthropogenic CO₂ input to atmosphere, it is important to study how plants in forests physiologically adjust to the changing atmospheric conditions. This has been studied intensively using controlled experiments, but it has been difficult to scale short term observations to long term ecosystem level response. However, models of carbon discrimination during carbon fixation show that C₃ plants are not passive recorders: carbon isotopic variations are subjected to strong physiological control through leaf gas exchange regulation. Therefore, records of carbon discrimination in tree ring cellulose could be used to study past variations of the ecophysiology of trees in reaction to environmental variations, in addition to the reconstruction of past environments. In this paper, based on the tree ring series from Zhaosu County of Xinjiang, the changes of the ratio of CO₂ concentration in the intercellular space of leaves to that on the atmosphere (C_i/C_a), CO₂ concentration in the intercellular space of leaves (C_i) and plant water use efficiency (A/g) derived from carbon isotope chronology were analyzed for the past 240 a. The results show a relatively constant C_i/C_a value of 0 52 during the whole period, suggesting a strategy of response of plants to increased atmospheric CO₂ concentration. Significant increasing trends of C_i and A/g are also found, implying more carbon being fixed; Further analysis shows that their changes are related to atmospheric CO₂ concentration, thus it is demonstrated that trees maybe take up the portion of anthropogenic CO₂ from another aspect.

Key words: tree ring, carbon isotope, ratio of CO₂ concentration in the intercellular space of leaves to that on the atmosphere, water use efficiency

中图分类号:

P461+.7

陈拓, 秦大河, 李江风, 任贾文, 孙维贞. 从树轮纤维素δ¹³C序列看树木生长对大气CO₂浓度变化的响应[J]. 冰川冻土, 2001, 23(1): 42-45.

CHEN Tuo, QIN Da-he, LI Jiang-feng, REN Jia-wen, SUN Wei-zhen. Response of CO₂ Concentration Parameters and Water-Use Efficiency Derived from Tree Ring δ¹³C Series to Atmospheric CO₂ Increase[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2001, 23(1): 42-45.

参考文献

[1] Gunderson C A, Wullschleger S D. Photosynthetic acclimation in trees to rising atmospheric CO₂ [J]. Plant Cell Environment, 1994, 15:271-282
[2] Luo Y, Sims D A, Thomas R B, et al. Sensitivity of leaf photosynthesis to CO₂ concentration is an invariant function for Cs plants: a test with experimental data and global applications [J]. Global Biogeochem Cycles, 1996, 10:209-222
[3] Amthor J S, Koch G W, Bloom A F. CO₂ inhibits respiration in leaves of Rumex crispus L [J]. Plant Physiol, 1992, 98: 757-760
[4] JohnsonDW, HendersonPH, BallJT, etal. Effects of CO₂ and N on growth and N dynamics in ponderosa pine: results from the first two growing seasons [A]. Koch G W, Mooney H A. Carbon Dioxide and Terrestrial Ecosystems [C]. San Diego: Academic Press, 1996. 23-40
[5] Polley H W, Jonhson H B, Marino B D, et al. Increase in C₃ plant water-use efficiency and biomass over Glacial to present CO₂ concentrations [J]. Nature, 1993, 361: 61-64
[6] O'Leary M H. Carbon isotopes in photosynthesis [J]. BioScience, 1988, 38:328-336
[7] Bert D, Leavitt S W, Dupouey J L. Variations of wood δ¹³C and water-use efficiency of Abiea alba during the last century [J]. Ecology, 1997, 78:1 588-1596
[8] Francey R J, Farquhar G D. An explanation of ¹³C/¹²C variations in tree rings [J]. Nature, 1982, 297: 28-31.
[9] Keeling C D, Bacastow R B, Carter A F, et al. A three-dimensional model of atmospheric CO₂ transport based on observed winds. 1. Analysis of observational data [A]. Peterson D H. Aspects of Climate Variability in the Pacific and the Western America. Geophys. Monogr., 55 [C]. 1989. 165-236
[10] Friedli H, Lotscher H, Oeschger H, et al. Ice core record of the ¹³C/¹²C ratio of atmospheric CO₂ in the past two centuries [J]. Nature, 1986, 324:237-238
[11] Feng X. Long-term C_i/C_a responseof trees in western North America to atmospheric CO₂ concentration derived from carbon isotope chronologies [J]. Oecologia, 1998, 117: 19-25
[12] Yuan Yujiang,Ye Wei, Dong Guangrong. Reconstruction and discussion of 314 a precinitation in Yili Prefecture, Western Tianshan Mountain [J]. Journal of Glaciology and Geocryology, 2000,22(2):121-127.[袁玉江,叶玮,董光荣.天山西部伊犁地区近314 a降水的重建与分析[J].ournal of Glaciology and Geocryology,2000,22(2):121-127.]
[13] Chen Tuo, Qin Dahe, Li Jiangfeng, et al. Study on significance of fir tree-ring δ¹³C from Zhaosu County of Xinjiang Region, China[J]. Journal of Glaciology and Geocryology, 2000, 22(4):347-350.[陈拓,秦大河,李江风,等.新疆昭苏云杉树轮纤维素δ¹³C的气候意义[J].冰川冻土,2000,22(4):347-350.]
[14] Krishnamurthy R V. Implications of a 400 year tree ring based ¹³C/¹²C chronology [J]. Geophys Res Letter, 1996, 23: 371-374.
[15] Collatz G J, Ball J T, Grivet C, etal. Physiological and environmental regulation of stomotal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer [J]. Agri. Forest Meteorology, 1991, 54: 107-136.
[16] Sun Guchou, Lin Zhifang. ¹³C/¹²C ratio in tree ring of subtropical monsoon evergreen broad-leaved forest and CO₂ concentration in atmosphere [J]. Chinese J. Appl. Ecol., 1992, 3:291-295.[孙谷畴,林植芳.亚热带季风常绿阔叶林树木年轮的¹³C/¹²C和大气CO₂浓度变化.应用生态学报,1992,3:291-295.]
[17] Wong S C, Cowan I R, Farquhar G D. Stomatal conductance correlates with photosynthetic capacity [J]. Nature, 1979, 282: 424-426.
[18] Wen Dazhi. Recent studies on plant water use efficiency under elevated atmospheric concentration of carbon dioxide [J]. J. Tropical Subtropical Botany, 1997,5:83-90.[温达志.大气二氧化碳浓度增高与植物水分利用效率[J].热带亚热带植物学报,1997,5:83-90.]
[19] Folland C K, Karl T R, Vinnikov K Y. Observed climate variations and change [A]. Houghton J T, Jenkins G J, Ephraums J J. Climate Change-the IPCC Scientific Assessment [C]. Cambridge.. Cambridge University Press, 1990. 195-238.
[20] O'Leary M H. Carbon isotope fractionation in plants [J]. Phytochemistry, 1981, 20. 553-567.
[21] Leavitt S W, Long A. Evidence for ¹³C/¹²C fractionation between tree leaves and woods [J]. Nature, 1982, 298: 742-744.
[22] Francey R J, Gifford R M, Sharkey T B, et al. Physiological influences on carbon isotope discrimination in huon pine (Lagarostrobos franklinii) [J]. Oecologia, 1985, 66: 211-238.
[23] Folland C K, Karl T R, Nicholls N, et al. Observed climate variability and change [A]. Houghton J T, Callander B A, Varney S K. Climate Change 1992-the Supplementary Report to IPCC Scientific Assessment [C]. Cambridge: Cambridge University Press, 1992. 135-170.
[24] Hemming D L, Switsur V R, Waterhouse J S, et al. Climate variation and the stable carbon isotope composition of treering cellulose: an intercomparison of Quercus robur, Fagus sylvatica and Pinus silvestris [J]. Tellus, 1998, 50B: 25-33.

从树轮纤维素δ¹³C序列看树木生长对大气CO₂浓度变化的响应

Response of CO₂ Concentration Parameters and Water-Use Efficiency Derived from Tree Ring δ¹³C Series to Atmospheric CO₂ Increase

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	秦进, 白红英, 翟丹平, 王俊, 李书恒, 黎斌. 秦岭东部牛背梁自然保护区巴山冷杉树轮宽度与气候因子的关系[J]. 冰川冻土, 2017, 39(3): 540-548.
[2]	张芬, 陈巧湄, 苏佳佳, 邓洋, 高琳琳, 勾晓华. 树轮记录的西北季风边缘区干旱变化[J]. 冰川冻土, 2017, 39(2): 245-251.
[3]	陈峰, 袁玉江, 魏文寿, 喻树龙, 尚华明, 张同文, 张瑞波, 王慧琴. 利用树轮密度重建新疆北部5-8月温度变化[J]. 冰川冻土, 2017, 39(1): 43-53.
[4]	贺慧丹, 杨永胜, 祝景彬, 李红琴, 未亚西, 李英年. 季节性放牧对黄河源区高寒草甸植被耗水量及水分利用效率的影响[J]. 冰川冻土, 2017, 39(1): 130-139.
[5]	汪青春, 时兴合, 刘义花, 秦宁生, 邵雪梅. 青海湖布哈河流域树轮宽度指数与NDVI植被指数的关系[J]. 冰川冻土, 2012, 34(6): 1424-1432.
[6]	胡义成, 魏文寿, 袁玉江, 张同文, 秦莉, 张瑞波. 基于树轮的阿勒泰地区1818-2006年1-2月降雪量重建与分析[J]. 冰川冻土, 2012, (2): 319-327.
[7]	曹生奎, 冯起, 司建华, 刘蔚, 曹广超, 陈克龙, 朱锦福. 不同立地条件下胡杨叶片稳定碳同位素组成及水分利用效率的变化[J]. 冰川冻土, 2012, 34(1): 155-160.
[8]	蓝永如，刘高焕，邵雪梅. 近40a来基于树轮年代学的梅里雪山明永冰川变化研究[J]. 冰川冻土, 2011, 33(6): 1229-1234.
[9]	张瑞波;魏文寿;袁玉江;杨青;喻树龙;张同文;尚华明;陈峰. 树轮记录的天山南坡阿克苏河过去300a径流变化特征[J]. 冰川冻土, 2011, 33(4): 744-751.
[10]	张芬;勾晓华;苏军德;高琳琳;刘文火;满自红. 祁连山东部不同树龄油松径向生长对气候的响应[J]. 冰川冻土, 2011, 33(3): 634-0639.
[11]	高琳琳;勾晓华;邓洋;张芬;方克艳. 树轮气候学中分异现象的研究进展[J]. 冰川冻土, 2011, 33(2): 453-460.
[12]	汤红官;陈拓;文陇英;张有福;何元庆. 两种圆柏属常绿植物叶片稳定碳同位素的季节变化及其指示意义[J]. 冰川冻土, 2010, 32(5): 1030-1034.
[13]	常宗强;冯起;司建华;曹生奎;翟禄新;王耀兵;. 阿拉善雅布赖风沙区不同水分条件下白刺叶片的水分生理特征[J]. 冰川冻土, 2010, 32(5): 1015-1021.
[14]	文陇英;;;陈拓;张满效;段争虎;彭仁清;简启亮;裴慧娟;. 不同生境下祁连圆柏叶片色素和稳定碳同位素组成的变化[J]. 冰川冻土, 2010, 32(4): 823-828.
[15]	刘晓宏;安文玲;梁尔源;王文志;邵雪梅;黄磊;秦大河. 祁连山青海云杉树轮δ¹³C的时空变化及其气候意义 [J]. 冰川冻土, 2010, 32(4): 666-676.