Re-Examine the Reliability of Tree-Ring Isotope Ratios in the Reconstruction of Atmospheric CO2 Isotope Ratio Variation

Abstract

Abstract: Based on the experimental results from seven subtropical species,in contrast with other researchers′ results, the parameter Ci/Ca (ratio of substomatal CO₂ to atmospheric CO₂ concentration)is not stable,but varies with species and environmental factors,especially light intensity.Thus,we concluded that the use of tree ring isotope ratios in the reconstruction of atmospheric CO₂ isotope ratio δa variation,which is based on the assumption that Ci/Ca keeps stable during assimilation,is not reliable under current circumstances.

Key words: spring maize, meteorological index for crop growth, continuity of crop index, climatic suitability.

CLC Number:

Q945.11

Hou Aimin, Peng Shaolin, Zhou Guoyi, Wen Dazhi. Re-Examine the Reliability of Tree-Ring Isotope Ratios in the Reconstruction of Atmospheric CO₂ Isotope Ratio Variation[J]. cje, 2001, (1): 13-17.

[1]	ZHANG Yining, WANG Jun. Decomposition of green manures and their effects on soil carbon and nitrogen, and crop yield in a dryland spring maize field. [J]. Chinese Journal of Ecology, 2023, 42(11): 2613-2621.
[2]	CHEN Ni-na, JI Rui-peng, JIA Qing-yu, FENG Rui, MI Na, ZHANG Shu-jie, ZHANG Yu-shu, YU Wen-ying. Effects of drought stress at key growth stages on yield and grain quality of spring maize. [J]. Chinese Journal of Ecology, 2021, 40(6): 1687-1694.
[3]	BAI Wei, SUN Zhan-xiang, ZHANG Li-zhen, ZHENG Jia-ming, FENG Liang-shan, CAI Qian, XIANG Wu-yan. Comprehensive evaluation of plough layer structuring effect based on radar chart method. [J]. cje, 2020, 39(4): 1369-1376.
[4]	CAI Fu, MI Na, JI Rui-peng, MING Hui-qing, FENG Rui, ZHANG Shu-jie, ZHANG Hui, ZHAO Xian-li, ZHANG Yu-shu. Determination of crop parameters for WOFOST model and its performance evaluation based on field experiment of spring maize in Jinzhou, Liaoning. [J]. cje, 2019, 38(4): 1238-1248.
[5]	WANG Pei-juan, HUO Zhi-guo, CHEN Peng-shi. Spatiotemporal dynamics of heat index for spring maize at different developmental stages in Northeast China. [J]. cje, 2018, 37(5): 1450-1458.
[6]	GUO Jin-lu1,2, GU Jian1, YIN Guang-hua1*, LI Xue1,2. Effect of shallowburied drip irrigation on water consumption characteristics and yield of spring maize in semiarid region of western Liaoning. [J]. cje, 2017, 36(9): 2514-2520.
[7]	CAI Fu1, MI Na1, JI Rui-peng1, MING Hui-qing2, XIE Yan-bing1, YU Wen-ying1, ZHANG Yu-shu1*， GAO Li-li3. Effects of continuous drought stress during key growth phases on photosynthetic characteristics of spring maize in Northeast China. [J]. cje, 2017, 36(6): 1578-1589.
[8]	LIU Xiao-shuang, GU Wan-rong, PIAO Lin, ZHANG Li-guo, ZHOU Ying, LI Cai-feng, LI Jing, WEI Shi. Effects of mixture of thidiazuron and ethephon on grain-filling characteristics and hormone regulation mechanism in spring maize. [J]. cje, 2017, 36(12): 3526-3534.
[9]	GUO Jin-lu1,2, YIN Guang-hua1*, GU Jian1,2, LIU Zuo-xin1. Determination of irrigation scheduling of spring maize in different hydrological years in Fuxin, Liaoning Province based on CROPWAT model. [J]. cje, 2016, 35(12): 3428-3434.
[10]	ZHAO Qian1, GUO Jian-ping1,2*. Stability evaluation of different accumulated temperature models: A case of spring maize in Northeast China. [J]. cje, 2016, 35(10): 2852-2860.
[11]	WU Rong-sheng1, WU Rui-fen1**, SUN Xiao-long1, TIAN Lei2, HOU Qiong1, ZHANG Chao1, SUN Lin-li3. Simulating the impact of drought on spring maize biomass and yield. [J]. cje, 2015, 34(9): 2482-2488.
[12]	LI Wen-hui1,2, YIN Guang-hua1**, GU Jian1,2, HUANG Peng-fei1,2, JIA Zhao-bin3. Coupling effects of water and nitrogen on yield and water use efficiency of spring maize with drip irrigation under film mulching. [J]. cje, 2015, 34(12): 3397-3401.
[13]	WU Xia, CHEN Yuan-quan**, SUI Peng, GAO Wang-sheng, YAN Peng, TAO Zhi-qiang. Effect of planting geometries on canopy structure of spring maize under highdensity condition in North China Plain. [J]. cje, 2015, 34(1): 18-24.
[14]	MA Shu-qing1, WANG Qi2, YU Hai3, XU Li-ping3, ZHANG Tie-lin3, JI Ling-ling1**. Maize emergence speed and its relationships with water and heat conditions in Northeast China and meteorological assessment of the maize emergence period. [J]. cje, 2013, 32(8): 2049-2055.
[15]	YIN Hai-xia, ZHANG Bo**, ZHANG Jian-xiang, SUN Li-wei, HE Xu-qiang. Spatiotemporal variation patterns of climatic factors and climatic potential productivity of spring maize in eastern Gansu of Northwest China. [J]. cje, 2013, 32(6): 1504-1510.

Re-Examine the Reliability of Tree-Ring Isotope Ratios in the Reconstruction of Atmospheric CO₂ Isotope Ratio Variation

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments