[1]段 娜,汪 季*,郝玉光,等.水分变化对荒漠植物白刺气体交换参数及形态特征的影响[J].南京林业大学学报(自然科学版),2019,43(06):032-38.
 DUAN Na,WANG Ji*,HAO Yuguang,et al.Effects of gas exchange and morphological characteristics of desert speciesNitraria tangutorum under moisture variation[J].Journal of Nanjing Forestry University(Natural Science Edition),2019,43(06):032-38.





Effects of gas exchange and morphological characteristics of desert species Nitraria tangutorum under moisture variation
段 娜12汪 季1*郝玉光2高君亮2陈晓娜2多普增2
(1.内蒙古农业大学沙漠治理学院,内蒙古 呼和浩特 010010; 2.中国林业科学研究院沙漠林业实验中心, 内蒙古 磴口 015200)
DUAN Na12WANG Ji1*HAO Yuguang2GAO Junliang2CHEN Xiaona2DUO Puzeng2
(1.Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot 010010, China; 2.Desert Forestry Experiment Center, Chinese Academy of Forestry, Dengkou 015200, China)
白刺 土壤水分 气体交换 形态特征 光合作用 半干旱区
Nitraria tangutorum soil moisture gas exchange morphological characteristic photosymthesis semi-arid area
S793.9; Q948.1
【目的】为预测干旱半干旱地区荒漠灌木对水资源紧缺现状的响应,分析了不同水分条件对白刺幼苗光合及形态特征的影响。【方法】以内蒙古乌兰布和沙区的白刺为试验材料,设置5个土壤水分梯度:CK、T1、T2、T3、T4(分别为田间持水量的100%、≥80%~100%、≥60%~80%、≥40%~60%、≥20%~40%),对其气体交换参数及各器官形态特征进行研究。【结果】与对照(CK)相比,水分含量降低到≥40%~60%和≥20%~40%(T3和T4)时,白刺的净光合速率日变化均存在下降的趋势,分别下降了42.16%和44.73%; 在不同的水分处理下,白刺蒸腾速率与气孔导度密切相关,并且相关系数大于净光合速率与气孔导度的相关性; 各水分处理下白刺水分利用效率的日均值大小顺序为:T2>T1>T3>CK>T4。T2处理下,白刺根、茎、叶各形态指标达到最大值,并且显著高于其他处理(P<0.05)。【结论】从白刺的光合特征角度看,在不同的水分处理下,白刺的净光合速率的日变化均呈双峰曲线,并在14:00左右净光合速率值最低,均存在光合“午休”现象。根据白刺净光合速率、胞间CO2浓度以及气孔限制值的变化,在CK、T1和T2处理下白刺光合“午休”的原因主要是由气孔因素引起; 在T3和T4处理下光合“午休”的原因主要是由非气孔因素引起。60%~80%的土壤含水量是适宜白刺生长的最佳水分条件。
【Objective】To study the effects of the photosynthesis and morphological characteristics of Nitraria tangutorum seedlings produced in Ulan Buh desert under different water conditions.【Method】 Gas exchange parameters and morphological characteristics were studied with five water treatments CK, T1, T2, T3 and T4(100%, ≥80%-100%, ≥60%-80%, ≥40%-60% and ≥20%-40% of field capacity, respectively).【Result】With decreasing water content, the daily variation photosynthetic rate of N. tangutorum also decreased; the daily variation in the photosynthetic rate decreased by 42.16% and 44.73% when the water content decreased to ≥40%-60% and ≥20%-40%, respectively(T3 and T4). In addition, the transpiration rate and stomatal conductance of N. tangutorum were closely related, and the correlation coefficient was higher than that for the net photosynthetic rate. The daily mean value of the water use efficiency of N. tangutorum was T2>T1>T3>CK>T4. The root, stem, and leaf reached the maximum under the T2 treatment; it was significantly higher than those under other treatments(P < 0.05).【Conclusion】Under the five different water treatments, a diurnal change in the photosynthetic rate presented a “double peak” curve; in addition, a photosynthetic “lunch break” phenomenon was observed at two o'clock in the afternoon. According to the change in the net photosynthetic rate, the intercellular CO2 concentration and stomatal limitation value of N. tangutorum,showed that photosynthetic lunch break phenomenon was caused by stomatal factors under the CK, T1 and T2 treatments and non-stomatal limitation under the T3 and T4 treatments. A total of ≥60%-80% soil water content was identified as the best moisture condition for the growth of N.tangutorum.


[1] 王红瑞,洪思扬,秦道清.干旱与水资源短缺相关问题探讨[J].水资源保护,2017,33(5):1-4.DOI:10.3880/j.issn.1004-6933.2017.05.001. WANG H R,HONG S Y,QIN D Q.Discussion on related issues of drought and water shortage[J].Water Resources Protection,2017,33(5):1-4. [2] 孟江丽.西北干旱区水资源利用与生态环境响应研究——以新疆白杨河流域为例[J].水资源保护,2013,29(2):38-42.DOI:10.3969/j.issn.1004-6933.2013.02.008. MENG J L.Water resources utilization and eco-environmental responses in arid areas in Northwest China: a case study in Baiyang River Basin in Xinjiang[J].Water Resources Protection,2013,29(2):38-42. [3] MCDONALD A J S,DAVIES W J.Keeping in touch: responses of the whole plant to deficits in water and nitrogen supply[J]. Advances in Botanical Research Elsevier,1996,22: 229-300.DOI:10.1016/s0065-2296(08)60059-2. [4] 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. ZHONG P F.Studies on drought resistant indexs and evaluated drought resistant capability of desert plant Reaumuria soongorica, Nitrari atangutourum and Calligomum mongolicum[D].Lanzhou: Gansu Agricultural University,2010. [5] 罗青红,宁虎森,何苗,等.5种沙地灌木对干旱胁迫的生理生态响应[J].林业科学,2017,53(11):29-42. DOI:10.11707/j.1001-7488.20171104. LUO Q H,NING H S, HE M,et al.Ecophysiological responses of five sandy shrubs to drought stress[J].Scientia Silvae Sinicae,2017,53(11):29-42. [6] 石磊,张芮,董平国,等.干旱缺水区民勤县水资源持续高效利用措施研究[J].水资源保护,2017,33(4):20-25. DOI:10.3880/j.issn.1004-6933.2017.04.004. SHI L,ZHANG R,DONG P G,et al.Research on measures for sustainable and efficient utilization of water resources in Minqin County in arid area with water shortage[J].Water Resources Protection,2017,33(4):20-25. [7] 徐军, 陈海玲, 郝玉光, 等. 乌兰布和沙区比拉底白刺(Nitraria billardieri)的气体交换参数及抗旱生理特性[J]. 中国沙漠, 2017, 37(5): 917-924. DOI:10.7522/j.issn.1000-694X.2016.00073. XU J, CHEN H L, HAO Y G, et al. Gas exchange and drought-resistant physiological characteristics of Nitraria billardier provenances in Ulanbuh desert[J]. Journal of Desert Research, 2017, 37(5): 917-924. [8] 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. DOI:10.3969/j.issn.1001-1498.2013.01.010. HE J, WU B, JIA Z Y, et al. Light responses of Nitraria tangutorum to rain addition treatments[J]. Forest Research, 2013, 26(1): 58-64. [9] 韩永伟,拓学森,高馨婷,等.阿拉善荒漠草原梭梭与白刺光合特征比较研究[J].草地学报,2010,18(3):314-319. HAN Y W, TUO X S, GAO X T, et al. A comparative study on photosynthetic characteristics of Haloxylon ammodendron and Nitraria tangutorum on temperate steppasubdesert in Alashan[J]. Acta Agrestia Sinica, 2010, 18(3): 314-319. [10] 黄刚, 赵学勇, 崔建垣, 等. 水分胁迫对2种科尔沁沙地植物光合和水分利用特性的影响[J]. 西北植物学报, 2008, 28(11): 2306-2313. DOI:10.3321/j.issn:1000-4025.2008.11.026. HUANG G, ZHAO X Y, CUI J Y, et al. Photosynthetic and water use efficiency characteristics of two annuals under drought stress in Korqin sandy land[J]. Acta Botanica Boreali-Occidentalia Sinica, 2008, 28(11): 2306-2313. [11] 关义新.水分胁迫下植物叶片光合的气孔和非气孔限制[J].植物生理学通讯,1995,31(4): 293-297. GUAN Y X.Stomatal and non-stomatal limitations of photosynthesis in plant leaves under water stress[J]. Plant Physiology Communications,1995,31(4):293-297. [12] 孙梅霞, 祖朝龙, 徐经年. 干旱对植物影响的研究进展[J]. 安徽农业科学, 2004, 32(2): 365-367,384. DOI:10.3969/j.issn.0517-6611.2004.02.092. SUN M X, ZU C L, XU J N. Research progress of effect of drought on plant growth and metabolism[J]. Journal of Anhui Agricultural Sciences, 2004, 32(2): 365-367,384. [13] 刘长利,王文全,崔俊茹,等.干旱胁迫对甘草光合特性与生物量分配的影响[J].中国沙漠,2006,26(1):142-145. DOI:10.3321/j.issn:1000-694X.2006.01.026. LIU C L, WANG W Q, CUI J R, et al. Effects of drought stress on photosynthesis characteristics and biomass allocation of Glycyrrhiza uralensis[J]. Journal of Desert Research, 2006, 26(1): 142-145. [14] 何维明,马风云.水分梯度对沙地柏幼苗荧光特征和气体交换的影响[J].植物生态学报,2000,24(5):630-634. HE W M,MA F Y.Effects of water gradient on fluorescence characteristics and gas exchange of Sabina vulgaris seedlings[J].Acta Phytoecologica Sinica,2000,24(5):630-634. [15] 王林龙,李清河,徐军,等.干旱胁迫对不同种源油蒿幼苗的生长和形态可塑性的影响[J].东北林业大学学报,2015,43(10): 55-57,78. DOI:10.3969/j.issn.1000-5382.2015.10.011. WANG L L, LI Q H, XU J, et al. Effects of drought stress to growth and morphological plasticity of different provenances of Artemisia ordosica seedlings[J]. Journal of Northeast Forestry University, 2015, 43(10): 55-57,78. [16] 张金鑫, 张景波, 卢琦, 等. 人工模拟降雨变化对白刺(Nitraria tangutorum)生理生态特征的影响[J]. 中国沙漠, 2018, 38(4): 747-755. DOI:10.7522/j.issn.1000-694X.2018.00007. ZHANG J X, ZHANG J B, LU Q, et al. Effect of artificial simulated rainfall on physiological and ecological characteristics of Nitraria tangutorum[J]. Journal of Desert Research, 2018, 38(4): 747-755. [17] 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. DOI:10.3969/j.issn.1001-1498.2012.02.004. ZHANG J X, LU Q, WU B, et al. Responses of Nitraria tangutorum branch and leaf growth to simulated rainfall[J]. Forest Research, 2012, 25(2): 130-137. [18] 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. DOI:10.3969/j.issn.1001-1498.2012.05.014. ZHU Y J, JIA Z Y, WU B, et al. The role of increased precipitation in promoting branch and leaf growth of Nitraria tangutorum[J]. Forest Research, 2012, 25(5): 626-631. [19] 徐军,陈海玲,李清河,等.土壤水分含量对白刺幼苗表型可塑性生长的影响[J].西北林学院学报, 2017,32(2):101-105. DOI:10.3969/j.issn.1001-7461.2017.02.17. XU J,CHEN H L,LI Q H,et al. Phenotypic plasticity of Nitraria tangutorum response to water change [J].Journal of Northwest Forestry University,2017,32(2):101-105. DOI:10.3969/j.issn.1001-7461.2017.02.17.


[1]贺 斌,赵粉侠,李根前*,等.毛乌素沙地中国沙棘克隆生长对土壤水分含量的响应[J].南京林业大学学报(自然科学版),2012,36(04):046.[doi:10.3969/j.jssn.1000-2006.2012.04.009]
 HE Bin,ZHAO Fenxia,LI Genqian*,et al.The response of clonal growth of Hippophae rhamniodes L.subsp sinensis to the availability of soil moisture in Mu Us sand land[J].Journal of Nanjing Forestry University(Natural Science Edition),2012,36(06):046.[doi:10.3969/j.jssn.1000-2006.2012.04.009]
 YAN Dai-bi,YUE Yong-jie,ZHENG Shao-wei,et al.Soil Water Content and Its Dynamics in Arid River Valley Region in Upper Reaches of Minjiang River[J].Journal of Nanjing Forestry University(Natural Science Edition),2006,30(06):064.[doi:10.3969/j.jssn.1000-2006.2006.04.015]
 ZHANG Lu,GUO Lian-hua,DU Tian-zhen,et al.The Effects of Shading and Soil Water Content on Photosynthesis of Toona ciliata var. pubescens Seedlings[J].Journal of Nanjing Forestry University(Natural Science Edition),2006,30(06):063.[doi:10.3969/j.jssn.1000-2006.2006.05.015]
 LI Dong lin,XIANG Qi-bai*.Effects of Soil Moisture Status on the Phoebe chekiangensis Seedings[J].Journal of Nanjing Forestry University(Natural Science Edition),2006,30(06):112.[doi:10.3969/j.jssn.1000-2006.2006.05.027]
 WU Lili,WANG Delu*,LI Ziyu.Effect of soil moisture on yield and quality of Guizhou small-leaved Kuding tea(Ligustrum robustum)[J].Journal of Nanjing Forestry University(Natural Science Edition),2019,43(06):111.[doi:10.3969/j.issn.1000-2006.201801024]


收稿日期:2018-12-21 修回日期:2019-04-08 基金项目:中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2017QA030)。 第一作者:段娜(15149816558@163.com),工程师。*通信作者:汪季(wangji1957@163.com),教授,ORCID(0000-0003-1630-0094)。
更新日期/Last Update: 2019-11-30