Response and acclimation of photosynthesis in Nitraria tangutorum to rain addition treatments in temperate desert in Northwest China

doi:10.7523/j.issn.2095-6134.2017.04.013

Abstract

Abstract: In this study, a field manipulative experiment was conducted with five simulated rain amount treatments (control, natural rain plus 25%, 50%, 75%, and 100% of multi-year mean precipitation) in a desert ecosystem in Northwest China, where the carbon cycle is extremely sensitive to the changes of rainfall amount and pattern. Photosynthesis and its temperature dependence in a desert shrub Nitraria tangutorum were investigated. The results are showed as follows. Rain addition treatments changed the magnitude of the photosynthetic acclimation to temperature in N.tangutorum. The apexes of the quadratic curves between photosynthesis rate and leaf surface air temperature shifted from about 29.31 ℃ in control plots to 28.87 ℃ and 28.57 ℃, in plots with 25% and 50% rain addition treatments, respectively. However, the apexes of the quadratic curves between photosynthesis rate and leaf surface air temperature shifted to 31.57 ℃ and 35.33 ℃ in plots with 75% and 100% rain addition treatments, respectively. The results will deepen our understanding of desert system carbon cycle.

Key words: rain addition experiment, desert shrub, photosynthesis, acclimation

CLC Number:

Q948

BAO Fang, HE Ji, CAO Yanli, LIU Minghu, XIN Zhiming, WU Bo. Response and acclimation of photosynthesis in Nitraria tangutorum to rain addition treatments in temperate desert in Northwest China[J]. , 2017, 34(4): 508-514.

References

[1] Gunderson C A, O'Hara K H, Campion C M, et al. Thermal plasticity of photosynthesis: the role of acclimation in forest responses to a warming climate [J]. Global Change Biology, 2010, 16: 2 272-2 286.
[2] Song W M, Chen S P, Wu B, et al. Vegetation cover and rain timing co-regulate the responses of soil CO₂ efflux to rain increase in an arid desert ecosystem [J]. Soil Biology & Biochemistry, 2012, 49: 114-123.
[3] Song W M, Chen S P, Zhou Y D, et al. Contrasting diel hysteresis between soil autotrophic and heterotrophic respiration in a desert ecosystem under different rainfall scenarios[J]. Scientific Reports, 2015, 5(12):1 436-1 438.
[4] Wohlfahrt G, Fenstermaker L F, Arnone J A. Large annual net ecosystem CO₂ uptake of a Mojave Desert ecosystem [J]. Global Change Biology, 2008, 14: 1 475-1 487.
[5] Xie J X, Li Y, Zhai C X, et al. CO₂ absorption by alkaline soils and its implication to the global carbon cycle [J]. Environmental Geology, 2009, 56: 953-961.
[6] 程磊磊，郭浩，吴波,等. 荒漠生态系统功能及服务的评估体系与方法[J]. 绿洲农业科学与工程,2016, 2(1):12-18.
[7] Parick L D, Ogle K, Bell C W, et al. Physiological responses of two contrasting desert plant species to precipitation variability are differentially regulated by soil moisture and nitrogen dynamics [J]. Global Change Biology, 2009, 15:1 214-1 229.
[8] 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]. Geneva, Switzerland: IPCC, 2014.
[9] Yan L M, Chen S P, Huang J H, et al. Water regulated effects of photosynthetic substrate supply on soil respiration in a semiarid steppe [J]. Global Change Biology, 2011, 17: 1 990-2 001.
[10] 朱雅娟，贾子毅，吴波,等. 模拟增雨对荒漠灌木白刺枝叶生长的促进作用[J]. 林业科学研究, 2012, 25(5): 626-631.
[11] 张金鑫，卢琦，吴波,等. 白刺枝叶生长对人工模拟降雨的响应[J]. 林业科学研究, 2012, 25(2): 130-137.
[12] 何季, 吴波, 鲍芳,等. 人工模拟增雨对乌兰布和沙漠白刺生物量分配的影响[J]. 林业科学, 2016, 52(5):81-91.
[13] 任昱，卢琦，吴波,等. 白刺叶片气孔特征对人工模拟降雨的响应[J].生态学报, 2014, 34(21):6 101-6 106.
[14] 任昱，吴波，卢琦,等. 荒漠植物白刺叶片气孔性状对模拟增雨的响应[J].林业科学研究, 2015, 28(6): 865-870.
[15] 何季，吴波，鲍芳,等. 荒漠植物白刺对模拟增雨的光合响应机制[J]. 林业科学, 2015, 51(6): 27-35.
[16] 何季，吴波，贾子毅,等. 白刺光合生理特性对人工模拟增雨的响应[J]. 林业科学研究, 2013, 26(1): 58-64.
[17] 张赐成，韩广，关华德,等. 樟树和桂花树光合最适温度对环境温度改变的响应[J]. 生态学杂志, 2014, 33(11): 2 980-2 987.
[18] Zhang J X, Gu L H, Bao F, et al. Nitrogen control of ¹³C enrichment in heterotrophic organs relative to leaves in a landscape building desert plant species [J]. Biogeosciences, 2015, 12: 15-27.
[19] Llorens L, Peñuelas J, Beier C, et al. Effects of an experimental increase of temperature and drought on the photosynthetic performance of two Ericaceous shrub species along a north-south European gradient [J]. Ecosystems, 2004, 7: 613-624.
[20] Li Y G, Jiang G M, Liu M Z, et al. Photosynthetic response to precipitation/rainfall in predominant tree (Ulmus pumila) seedlings in Hunshandak Sand land, China [J]. Photosynthetica, 2007, 45 (1): 133-138.
[21] Haase P, Pugnaire F I, Clark S C, et al. Environmental control of canopy dynamics and photosynthetic rate in the evergreen tussock grass Stipa tenacissima [J]. Plant Ecology, 1999, 145: 327-339.
[22] Seghieri J, Carreau J, Boulain N, et al. Is water availability really the main environmental factor controlling the phenology of woody vegetation in the central Sahel [J]. Plant Ecology, 2012, 213: 861-870.
[23] Yamori W, Noguchi K, Terashima I. Temperature acclimation of photosynthesis in spinach leaves: analyses of photosynthetic components and temperature dependencies of photosynthetic partial reactions [J]. Plant, Cell and Environment, 2005, 28:536-547.
[24] Mooney H A, Björkman O, Collatz G J. Photosynthetic acclimation to temperature in desert shrub, Larrea divaricata: I. Carbondioxide exchange characteristics of intact leaves [J]. Plant Physiology, 1978, 61: 406-410.
[25] Armond P A, Schreiber U, Björkman O. Photosynthetic acclimation to temperature in desert shrub, Larrea divaricata: Ⅱ. Light harvesting efficiency and electron transport [J]. Plant Physiology, 1978, 61: 411-415.
[26] Xiong F S, Mueller E C, Day T A. Photosynthetic and respiratory acclimation and growth responses of Antarctic vascular plants to contrasting temperature regimes [J]. American Journal of Botany, 2000, 87(5): 700-710.
[27] Niu S L, Li Z, Xia J Y, et al. Climatic warming changes plant photosynthesis and its temperature dependence in a temperate steppe of northern China [J]. Environmental and Experimental Botany, 2008, 63: 91-101.
[28] Sage R F, Kubien D S. The temperature response of C3 and C4 photosynthesis [J]. Plant, Cell and Environment, 2007, 30: 1 086-1 106.
[29] Lin Y S, Medlyn B E, Ellsworth D S. Temperature responses of leaf net photosynthesis: the role of component processes [J]. Tree Physiology, 2012, 32: 219-231.