土壤水分胁迫对刺槐幼苗生长、根叶性状和生物量分配的影响

唐洋; 温仲明; 王杨; 刘静

doi:10.13961/j.cnki.stbctb.2019.06.014

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土壤水分胁迫对刺槐幼苗生长、根叶性状和生物量分配的影响

试验研究

- 土壤水分胁迫对刺槐幼苗生长、根叶性状和生物量分配的影响
- Effects of Soil Water Stress on Growth, Root and Leaf Traits, and Biomass Allocation of Robinia Pseudoacacia Seedlings
- 水土保持通报 2019年39卷第6期页码：98-105
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  2. 西北农林科技大学草业与草原学院, 陕西杨凌,712100
  3. 中国科学院教育部水土保持与生态环境研究中心, 陕西杨凌,712100
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目“黄土高原刺槐环境适应机制、成本与群落性状结构及功能变化”（41671289）
- DOI：10.13961/j.cnki.stbctb.2019.06.014
  中图分类号：
- 纸质出版：2019
- 稿件说明：
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唐洋, 温仲明, 王杨, 等. 土壤水分胁迫对刺槐幼苗生长、根叶性状和生物量分配的影响[J]. 水土保持通报, 2019,39(6):98-105.

Tang Yang, Wen Zhongming, Wang Yang, et al. Effects of Soil Water Stress on Growth, Root and Leaf Traits, and Biomass Allocation of Robinia Pseudoacacia Seedlings[J]. Bulletin of Soiland Water Conservation, 2019, 39(6): 98-105.
唐洋, 温仲明, 王杨, 等. 土壤水分胁迫对刺槐幼苗生长、根叶性状和生物量分配的影响[J]. 水土保持通报, 2019,39(6):98-105. DOI： 10.13961/j.cnki.stbctb.2019.06.014.

Tang Yang, Wen Zhongming, Wang Yang, et al. Effects of Soil Water Stress on Growth, Root and Leaf Traits, and Biomass Allocation of Robinia Pseudoacacia Seedlings[J]. Bulletin of Soiland Water Conservation, 2019, 39(6): 98-105. DOI： 10.13961/j.cnki.stbctb.2019.06.014.

摘要

[目的] 探索刺槐幼苗在干旱胁迫下的适应策略，为植被恢复过程中人工刺槐林的造林选址提供科学依据。[方法] 采用盆栽控水实验法，以1年生刺槐幼苗为实验对象，设置4个水分梯度（分别为田间持水量的75%~90%，60%~75%，45%~60%，30%~45%），研究水分胁迫下刺槐幼苗的适应机制。[结果] ①中度（45%~60%）和重度水分胁迫（30%~45%）明显抑制幼苗生长，其株高、地径和冠幅显著低于对照组（75%~90%），轻度水分胁迫（60%~75%）与对照组差异不显著，在实验结束时其生长状态优于对照组；②随土壤水分胁迫程度加深，刺槐幼苗根磷含量升高，比叶面积和比根长减小，叶厚度和叶组织密度增大；③中度（45%~60%）和重度水分胁迫（30%~45%）显著减少了幼苗的生物量积累，提高了幼苗的根冠比。[结论] 刺槐幼苗通过将同化物质相对多的投入到防御组织的策略来适应干旱环境。重度水分胁迫严重抑制幼苗的生长，而在轻度水分胁迫下，幼苗能取得最大生长收益。

Abstract

[Objective] The adaptation strategies of Robinia pseudoacacia seedlings under drought stress were explored

in order to provide support for afforestation site selection of artificial Robinia pseudoacacia forests during vegetation restoration.[Methods]Using the potted water control experiment method

the annual seedlings were used as experimental subjects to study the adaptation mechanism of Robinia pseudoacacia seedlings. Four water gradients were respectively set as follows:75%~90%

60%~75%

45%~60%

and 30%~45% of soil water holding capacity.[Results] ① Moderate water stress(45%~60%) and severe water stress(30%~45%) significantly inhibited the growth of seedling

and the plant height

ground diameter and crown width were significantly lower than those of the control group(75%~90%). ② With the deepening of soil water stress

root phosphorus content

specific leaf area and specific root length decreased

while leaf thickness and leaf tissue density increased in Robinia pseudoacacia seedlings. There was no significant different between mild water stress(60%~75%) and the control group

and the growth state of mild water stress was even better than that of the control group at the end of the experiment. ③ Moderate water stress and severe water stress significantly reduced the biomass accumulation of seedlings and increased the root-shoot ratio of seedlings.[Conclusions] Robinia pseudoacacia seedlings adapts to the arid environment by investing a relatively large amount of assimilated material into the defense organization. Severe water stress inhibited the growth of seedlings seriously

while under mild water stress

seedlings could achieve maximum growth benefit.

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references

刘颖慧,贾海坤,高琼.植物同化物分配及其模型研究综述[J].生态学报,2006,26(6):1981-1992.

高小锋,王进鑫,张波,等.不同生长期干旱胁迫对刺槐幼树干物质分配的影响[J].生态学杂志,2010,29(6):1103-1108.

Delgado-Baquerizo M, Maestre F T, Gallardo A, et al. Decoupling of soil nutrient cycles as a function of aridity in global drylands[J]. Nature, 2013, 7473(502):672.

王凯,沈潮,孙冰,等.干旱胁迫对科尔沁沙地榆树幼苗C、N、P化学计量特征的影响[J].应用生态学报,2018,29(7):2286-2294.

Galmés J, Ochogavía J M, Gago J, et al. Leaf responses to drought stress in Mediterranean accessions of Solanum lycopersicum:Anatomical adaptations in relation to gas exchange parameters[J]. Plant, Cell & environment, 2013, 36(5):920-35.

肖冬梅,王淼,姬兰柱.水分胁迫对长白山阔叶红松林主要树种生长及生物量分配的影响[J].生态学杂志,2004,23(5):93-97.

文瑛,廖飞勇.不同水分胁迫对刺槐生理的影响[J].基因组学与应用生物学,2011,30(6):714-721.

McCarthy M C,Enquist B J. Consistency between an allometric approach and optimal partitioning theory in global patterns of plant biomass allocation[J]. Functional Ecology, 2007, 21(4):713-720.

Gleeson SK,Tilman D. Allocation and the transient dynamics of succession on poor soils[J]. Ecology, 1990, 71(3):1144-1155.

Westoby M A. A leaf-height-seed(LHS) plant ecology strategy scheme[J]. Plant and Soil, 1998, 199(2):213-227.

Vendramini F, Díaz S, Gurvich D E, et al. Leaf traits as indicators of resource-use strategy in floras with succulent species[J]. New Phytologist, 2002, 154(1):147-157.

王百田,王颖,郭江红,等.黄土高原半干旱地区刺槐人工林密度与地上生物量效应[J].中国水土保持科学,2005,3(3):35-39.

Craine J M,Lee W G. Covariation in leaf and root traits for native and non-native grasses along an altitudinal gradient in New Zealand[J]. Oecologia, 2003, 134(4):471-478.

单长卷,梁宗锁,韩蕊莲,等.黄土高原陕北丘陵沟壑区不同立地条件下刺槐水分生理生态特性研究[J].应用生态学报,2005,17(7):1205-1212.

韩蕊莲,侯庆春.延安试区刺槐林地在不同立地条件下土壤水分变化规律[J].西北林学院学报,2003,18(1):74-76.

李俊辉,李秧秧,赵丽敏,等.立地条件和树龄对刺槐和小叶杨叶水力性状及抗旱性的影响[J].应用生态学报,2012,23(9):2397-2403.

李超然,温仲明,李鸣雷,等.黄土丘陵沟壑区地形变化对土壤微生物群落功能多样性的影响[J].生态学报,2017,37(16):5436-5443.

鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000.

Meinen C, Hertel D, Leuschner C. Biomass and morphology of fine roots in temperate broad-leaved forests differing in tree species diversity:Is there evidence of below-ground overyielding?[J]. Oecologia, 2009, 161(1):99-111.

韩蕊莲,侯庆春.作物对缺水环境的感知及其反应[J].西北植物学报,1996,16(6):67-72.

Duarte C M, Sand-Jensen K, Nielsen S L, et al. Comparative functional plant ecology:Rationale and potentials[J]. Trends in Ecology & Evolution, 1995, 10(10):418-421.

Cornelissen J H C, Lavorel S, Garnier E, et al. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide[J]. Australian Journal of Botany, 2003, 51(4):335-380.

Meziane D, Shipley B. Interacting components of interspecific relative growth rate:Constancy and change under differing conditions of light and nutrient supply[J]. Functional Ecology, 1999, 13(5):611-622.

Abrams M D. Adaptations and responces co drought in Quercusspeeies of North America[J]. Tree Physiology, 1990, 7(1/4):227-238.

段媛媛,宋丽娟,牛素旗,等.不同林龄刺槐叶功能性状差异及其与土壤养分的关系[J].应用生态学报,2017,28(1):28-36.

李荣,党维,蔡靖,等.6个耐旱树种木质部结构与栓塞脆弱性的关系[J].植物生态学报,2016,40(3):255-263.

戚德辉,温仲明,杨士梭,等.基于功能性状的铁杆蒿对环境变化的响应与适应[J].应用生态学报,2015,26(7):1921-1927.

Craine J M, Froehle J, Tilman D G, et al. The relationships among root and leaf traits of 76 grassland species and relative abundance along fertility and disturbance gradients[J]. Oikos, 2001, 93(2):274-285.

刘颖慧,贾海坤,高琼.植物同化物分配及其模型研究综述[J].生态学报,2006,26(6):1981-1992.

徐飞,郭卫华,徐伟红,等.刺槐幼苗形态、生物量分配和光合特性对水分胁迫的响应[J].北京林业大学学报,2010,32(1):24-30.

孙书存,陈灵芝.辽东栎幼苗对干旱和去叶的生态反应的初步研究[J].生态学报,2000,5(5):893-897.

刘国军,张希明,吕朝燕,等.不同供水条件下梭梭幼苗生长动态的研究[J].中国沙漠,2012,32(2):388-394.

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