Respones of Physiological Adaptability of Vetiveria Zizanioides on Alternating Flooding-Drought Stress

LI Ming-yi; LIU Gang; XIAO Hai; XU Wen-nian; ZHAN You-gang; ZHAN Bin-he; LIU Qi; CAO Pei; LI Yao

doi:10.13961/j.cnki.stbctb.2014.02.011

您当前的位置：

首页 >

文章列表页 >

Respones of Physiological Adaptability of Vetiveria Zizanioides on Alternating Flooding-Drought Stress

- Respones of Physiological Adaptability of Vetiveria Zizanioides on Alternating Flooding-Drought Stress
- Bulletin of Soiland Water Conservation Vol. 33, Issue 2, Pages: 48-52(2014)
- 作者机构：
  
  1. 三峡大学三峡地区地质灾害与生态环境湖北省协同创新中心,湖北,宜昌,443002
  2. 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  3. 华中农业大学资源与环境学院,湖北,武汉,430070
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.02.011
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
LI Ming-yi, LIU Gang, XIAO Hai, et al. Respones of Physiological Adaptability of Vetiveria Zizanioides on Alternating Flooding-Drought Stress[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 48-52.
DOI：

LI Ming-yi, LIU Gang, XIAO Hai, et al. Respones of Physiological Adaptability of Vetiveria Zizanioides on Alternating Flooding-Drought Stress[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 48-52. DOI： 10.13961/j.cnki.stbctb.2014.02.011.

摘要

三峡水库消落带因水位的周期性变化

使其土壤含水量呈干湿交替变化

而大多数原有植物难以适应新的生境

导致生态系统严重破坏。利用盆栽法模拟其水淹条件

以30

90和120 d为周期进行水淹-干旱交替处理

研究了香根草当年实生幼苗在水淹与干旱交替胁迫下的光合特性及生理生态适应机制。结果表明

不同胁迫周期的水淹-干旱交替胁迫均显著影响香根草幼苗的生长及其光合生理特性。各组幼苗的株高、净光合速率、气孔导度及叶绿素含量等生理生态学指标均随时间变化呈不同幅度的升降变化。而不同组间的各项指标值均随交替周期的增大而减小。但无论何种变化

各处理组最终又都能逐渐恢复或趋于稳定状态

保持较高的存活率。因此

香根草对水淹和干旱均具有良好的耐受力和适应性

可作为三峡库区消落带植被恢复建设的重要植物种类。

Abstract

Due to the periodical water level change of the hydro-fluctuation belt in Three Gorges reservoir area

soil of the hydro-fluctuation belt repeatedly experienced the process of flooding-drought. Thus

most of the original plants were difficult to adapt to the new habitat and that lead to seriously damage of the original ecosystems in the hydro-fluctuation belt. This research imitated the regular pattern of soil moisture condition of the hydro-fluctuation belt in Three Gorges reservoir area and investigated the photosynthetic physiological characteristics and ecological adaptation mechanism of Vetiveria zizanioides under alternating flooding-drought stress with four treatments in 30

and 120 d as cycles. Results showed that different alternating flooding-drought stress significantly affected growth and photosynthetic physiological characteristics of Vetiveria zizanioides seedlings. Plant height

net photosynthetic rate

stomatal conductance

and chlorophyll content physiological variables of each group showed different trends with time. Meanwhile

the alternating cycle was greater

the variation was greater. Whatever

each group eventually can gradually restore or stabilize the state

to maintain a high survival rate. Therefore

Vetiveria zizanioides have a good tolerance and adaptability to flooding and drought. It can be chosen as a plant species for ecological construction in Three Gorges reservoir area.

关键词

Keywords

references

刁承泰,黄京鸿. 三峡水库水位涨落带土地资源的初步研究[J]. 长江流域资源与环境,1999,8(1):75-80.

夏汉平,敖惠修,刘世忠. 香根草生态工程应用于公路护坡的效益研究[J]. 生态学报,2002,19(1):52-56.

夏汉平,熬惠修,何道泉,等. 香根草在土壤改良与水土保持中的作用[J]. 热带地理,1996,16(3):265.

李昌晓,钟章成. 三峡库区消落带土壤水分变化条件下池杉幼苗光合生理回应的模拟研究[J]. 水生生物学报,2005,29(6):712-716.

张晔. 水淹与干旱胁迫对三峡库区消落带几种适生树种的生理生态影响[D]. 重庆:西南大学,2012:1-83.

李玲. 植物生理学模块实验指导[M]. 北京:科学出版社,2009:35-38.

郑坚,陈秋夏,金川,等. 不同TTC法测定枫香等阔叶树容器苗根系活力探讨[J]. 浙江农业科学,2008(1):39-42.

靖元孝,程惠青,彭建宗,等. 水翁幼苗对淹水的反应初报[J]. 生态学报,2001,21(5):810-813.

Each A, Mangle K. Combined effects of acid mist and frost drought on the water status of young spruce trees (

Pica abides

)[J]. Environmental Experimental Botany, 1998, 39(1):57-65.

靖元孝,陈兆平,杨丹菁. 香根草(

Vetiveria zizanioides

)对淹水的反应和适应初报[J]. 华南师范大学学报:自然科学版,2001(4):40-43.

Pezeshki S R. Wetland plant responses to soil flooding[J]. Environmental Experimental Botany, 2001, 46(3):299-312.

衣英华,樊大勇,谢宗强,等. 模拟淹水对枫杨和栓皮栎气体交换、叶绿素荧光和水势的影响[J]. 植物生态学报,2006,30(6):960-968.

胡田田,康绍忠. 植物抗旱性中的补偿效应及其在农业节水中的应用[J]. 生态学报,2005,25(4):885-891.

王丽,宋长春,胡金明,等. 毛苔草地下构件对不同水文情势和水文经历的生长响应[J]. 应用生态学报, 2008,19(10):2194-2200.

Jackson M B, Colmer T D. Response and adaptation by plants to flooding stress[J]. Annals of Botany, 2005,96(4):5015-505.

Joly R J, Hahn D T. Net CO

assimilation of cacao seedings following dark chilling[J]. Tree Physiology, 1991, 9(3):415-424.

许大全. 光合作用气孔限制分析中的一些问题[J]. 植物生理学通讯,1997,33(4):241-244.

Views

1485

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Spatiotemporal variations and driving forces of vegetation coverage in Three Gorges reservoir area during 2013—2023——A case study at Badong County， Hubei Province

Effects of Soil Erosion Control Project on Environmental and Human Carrying Capacity in Three Gorges Reservoir Area

Forest Hydrological Effects of Litter Layers Under Different Natural Secondary Forest in Three Gorges Reservoir Area

Effects of Rainfall on Runoff from a Small Watershed in Three Gorges Reservoir Area

Estimation on Erosion-induced Economic Loss in Three Gorges Reservoir Area

Related Author

Li Shu

Shi Chao

Ding Fanya

ZHAO Yang

FENG Ming-han

QI Shi

XIAO Yu-bao

LI Gen-ping

Related Institution

Changjiang Institute of Survey Technical Research， Ministry of Water Resources

The Park of Xiangshan

Soil and Water Conservation Monitoring Center of the Yangzi River Water Conservancy Commission,Ministry of Water Resources , Hankou

The College of Soil and Water Conservation,Beijing Forestry University

Forestry Administration of Chongqing Municipality

⁰