Abstract
Isotopic carbon ratios were measured in homogenised leaf litter and in sapwood of Agathis australis (kauri) and Dacrycarpus dacrydioides (kahikatea) trees growing together at ridge crest and valley sites in Northland, New Zealand. The discrimination (A) values for kauri were significantly less than for kahikatea, indicating a possibility of higher water‐use efficiency of kauri. Discrimination did not vary significantly in different environments, with each species showing similar values at several valley and ridge sites even at distant locations. It is concluded that the differences in A between kauri and kahikatea are the result of fundamental physiological differences between the species rather than resulting from site preferences. For both species, wood is significantly less depleted than leaf material.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
