An Analysis of the Adaptability of Populus euphratica and Elaeagnus angustifolia to Changes in Environmental Factors

Wang Zhongli; Zhao Xue; Liu Linde; Bai Xinfu; Zhu Jainjun

doi:10.7522/j.issn.1000-694X.2014.00001

2015 , Vol. 35 >Issue 1: 160 - 166

DOI: https://doi.org/10.7522/j.issn.1000-694X.2014.00001

An Analysis of the Adaptability of Populus euphratica and Elaeagnus angustifolia to Changes in Environmental Factors

Wang Zhongli ,
Zhao Xue ,
Liu Linde ,
Bai Xinfu ,
Zhu Jainjun

Expand

College of Life Sciences, Ludong University, Yantai 264025, Shandong, China

Received date: 2013-12-25

Revised date: 2014-01-03

Online published: 2015-01-20

Fold

Abstract

The diurnal changes in transpiration and photosynthesis in two broadleaved desert plants, Populus euphratica and Elaeagnus angustifolia were measured and analyzed in relation to the changes in the environmental factors. The results showed that:(1)the changes in diurnal patterns of transpiration and photosynthesis in P. euphratica were very similar, but the transpiration rate exhibited a lag of about 2 hours. The transpiration rate of P. euphratica was positively correlated to the temperature and water potential of the air, but did not show apparent relationship to the light intensity. P. euphratica maintained high level of transpiration and photosynthesis when both the light intensity and temperature were continuously high for several hours, no sign of regulation in water consumption was observed. The fact that the photosynthetic rate was almost linearly related to the light intensity showed that P. euphratica was a typical sun plant, since no photo-inhibition appeared to the plant. (2)In contrast, the patterns of the diurnal changes in transpiration and photosynthesis in Elaeagnus angustifolia were almost fully parallel, indicating that the photosynthesis was highly dependent on the opening of stomata and gas exchange. At high temperature and high light intensity, both the transpiration and photosynthesis in E. angustifolia declined continuously, showing that the stomata in E. angustifolia were more sensitive to changes in light intensity and temperature, and more capable of regulating the consumption of water when the water stress was severe. The transpiration and photosynthesis both showed fluctuations in the afternoon in E. angustifolia, which seemed to be due the result of stomata oscillations. (3)In terms of ecological adaptability, P. euphratica may have taken the strategy of maintaining a high level in both transpiration and photosynthesis under high temperature stress, thus have a high productivity, at the expense of high water consumption; while E. angustifolia may have taken the strategy of having asteriated scales on their leaves to reflect the excessive light to avoid radiation injury, and sensitively regulating the stomata to prevent excessive water loss. In this sense, E. angustifolia is a water-saving species among the broadleaved trees.

Key words： Populus euphratica; Elaeagnus angustifolia; desert environment; adaptability

Cite this article

Wang Zhongli , Zhao Xue , Liu Linde , Bai Xinfu , Zhu Jainjun . An Analysis of the Adaptability of Populus euphratica and Elaeagnus angustifolia to Changes in Environmental Factors[J]. Journal of Desert Research, 2015 , 35(1) : 160 -166 . DOI: 10.7522/j.issn.1000-694X.2014.00001

References

[1] 董光荣,吴波,慈龙骏,等.我国荒漠化现状、成因及防治对策[J].中国沙漠,1999,19(4):318-332.
[2] 卢琦,吴波.中国荒漠化灾害评估及其经济价值核算[J].中国人口·资源与环境,2002,12(2):29-33.
[3] 刘拓.中国土地沙漠化经济损失评估[J].中国沙漠,2006,26(1):40-46.
[4] Lichtfouse E,Navarrete M,Debaeke P,et al.Plant drought stress:effects,mechanisms and management[M]//Lichtfouse E,Navarrete M,Debaeke P,et al.Sustainable Agriculture.Netherlands:Springer,2009:153-188.
[5] Lawlor D W,Tezara W.Causes of decreased photosynthetic rate and metabolic capacity in water-deficient leaf cells:a critical evaluation of mechanisms and integration of processes[J].Annals of Botany,2009,103(4):561-579.
[6] Ripley B,Frole K,Gilbert M.Differences in drought sensitivities and photosynthetic limitations between co-occurring C₃ and C₄(NADP-ME) Panicoid grasses[J].Annals of Botany,2010,105(3):493-503.
[7] Akkuzu E,amoglu G,Kaya V.Diurnal variation of canopy temperature differences and leaf water potential of field-grown olive(Olea europaea L.cv.Memecik) Trees[J].The Philippine Agricultural Scientist,2010,93(4):399-405.
[8] Pinheiro C,Chaves M M.Photosynthesis and drought:can we make metabolic connections from available data?[J].Journal of Experimental Botany,2011,62(3):869-882.
[9] Tezara W,Colombo R,Coronel I,et al.Water relations and photosynthetic capacity of two species of Calotropis in a tropical semi-arid ecosystem[J].Annals of Botany,2011,107(3):397-405.
[10] Lawlor D W.Musings about the effects of environment on photosynthesis[J].Annals of Botany,2009,103(4):543-549.
[11] Montgomery D C.Design and Analysis of Experiments[M].Hoboken,USA:John Wiley & Sons,Inc.,2005:60-159.
[12] 韩磊,贺康宁,芦新建,等.青海高寒半干旱区蒙古莸叶水势变化及其与环境因素的关系[J].水土保持学报,2008,28(6):1-5.
[13] 韩瑞宏,卢欣石.苗期紫花苜蓿对干旱胁迫的适应机制[J].草地学报,2006,14(4):393-394.
[14] 苏培玺,张立新,杜明武,等.胡杨不同叶形光合特性、水分利用效率及其对加富CO₂的响应[J].植物生态学报,2003,27(1):34-40.
[15] Gries D,Zeng F,Foetzki A,et al.Growth and water relations of Tamarix ramosissima and Populus euphratica on Taklamakan desert dunes in relation to depth to a permanent water table[J].Plant,Cell and Environment,2003,26:725-736.
[16] 李向义,林丽莎,张希明,等.塔克拉玛干绿洲外围胡杨林的水分特征研究[J].应用与环境生物学报,2007,13(6):763-766.
[17] 刘晓晴,常宗强,马亚丽,等.胡杨(Populus euphratica)异形叶叶绿素荧光动力学[J].中国沙漠,2014,34(3):704-711.
[18] 赵春彦,司建华,冯起,等.胡杨(Populus euphratica)树干液流特征及其与环境因子的关系[J].中国沙漠,2014,34(3):718-724.
[19] 种培方,李毅,苏世平.干旱胁迫下不同地理种源蒙古沙拐枣(Calligomum mongolicum)光合及荧光特性比较[J].中国沙漠,2014,34(5):1301-1306.
[20] Buck A L.New equations for computing vapor pressure and enhancement factor[J].Journal of Applied Meteorology,1981,20(12):1527-1532.
[21] Murphy D M,Koop T.Review of the vapour pressures of ice and supercooled water for atmospheric applications[J].Quarterly Journal of the Royal Meteorological Society,2005,131(608):1539-1565.
[22] 郭铌,朱燕君,王介民,等.近22年来西北不同类型植被NDVI 变化与气候因子的关系[J].植物生态学报,2008,32(2):319-327.
[23] Blum A.Plant water relations,plant stress and plant production[M]//Blum A.Plant Breeding for Water-Limited Environments.New York,USA:Springer,2011:11-52.
[24] Givnish T.Adaptation to sun and shade:a whole-plant perspective[J].Functional Plant Biology,1988,15(2):63-92.
[25] Roelfsema M R G,Hedrich R.In the light of stomatal opening:new insights into the Watergate'[J].New Phytologist,2005,167(3):665-691.
[26] Yang H M,Zhang J H,Zhang X Y.Regulation mechanisms of stomatal oscillation[J].Journal of Integrative Plant Biology,2005,47(10):1159-1172.
[27] Marenco R A,Siebke K,Farquhar G D,et al.Hydraulically based stomatal oscillations and stomatal patchiness in Gossypium hirsutum[J].Functional Plant Biology,2006,33(12):1103-1113.
[28] Tallman G.Are diurnal patterns of stomatal movement the result of alternating metabolism of endogenous guard cell ABA and accumulation of ABA delivered to the apoplast around guard cells by transpiration?[J].Journal of Experimental Botany,2004,55(405):1963-1976.

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References