CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Australian Journal of Botany   
Australian Journal of Botany
Journal Banner
  Southern Hemisphere Botanical Ecosystems
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
Content
Current Issue
Just Accepted
All Issues
Special Issues
Turner Review Series
Sample Issue
For Authors
General Information
Notice to Authors
Submit Article
Open Access
For Referees
Referee Guidelines
Review an Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter youtube

red arrow PrometheusWiki
blank image
PrometheusWiki
Protocols in ecological and environmental plant physiology

 

Article << Previous     |     Next >>   Contents Vol 39(5)

Effects of Edaphic Factors and Flood Frequency on the Abundance of Lignum (Muehlenbeckia florulenta Meissner) (Polygonaceae) on the River Murray Floodplain, South Australia

AE Craig, KF Walker and AJ Boulton

Australian Journal of Botany 39(5) 431 - 443
Published: 1991

Abstract

Lignum is a native woody perennial which forms extensive thickets in low-lying areas of the floodplain of the lower River Murray, although its range and abundance have been affected by land clearance, salinisation, flow regulation and possibly grazing on seedlings. Comparisons between lignum cover and edaphic data for three sites (Chowilla, Morgan and Overland Comer) showed a negative correlation with soil hardness. Cover was also correlated positively with soil moisture and negatively with time since last flooded, but not correlated with flood recurrence interval. Principal Components Analysis revealed a complex component, loaded by moisture, salinity, pH and organic content, that explained most of the variation in lignum cover. A greenhouse experiment indicated that the salinity and volume of water supplied to plants have significant effects on stem growth. Stands of lignum may be best maintained by flooding low-lying areas every 3-10 years or areas with saline soils more frequently.



Full text doi:10.1071/BT9910431

© CSIRO 1991

blank image
Subscriber Login
Username:
Password:  

 
PDF (576 KB) $25
 Export Citation
 Print
  
    
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2015