Original Research

Effects of water and nutrient addition on the coppice growth response of cut Terminalia sericea

Hloniphani Moyo, Mary C. Scholes, Wayne Twine
Koedoe | Vol 58, No 1 | a1371 | DOI: https://doi.org/10.4102/koedoe.v58i1.1371 | © 2016 Hloniphani Moyo, Mary C. Scholes, Wayne Twine | This work is licensed under CC Attribution 4.0
Submitted: 25 November 2015 | Published: 22 July 2016

About the author(s)

Hloniphani Moyo, School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa
Mary C. Scholes, School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa
Wayne Twine, School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa


Share this article

Bookmark and Share

Abstract

The ability of a woody plant to coppice and remain vigorous largely depends on the severity of disturbances, resource availability and the mobilisation of stored reserves. There is limited information about the role played by resource limitation on the recovery of cut trees. This study investigated the effects of water and nutrient supplementation on coppice growth responses of resprouting cut trees in a semi-arid savannah in South Africa. Cut trees were exposed to different levels of water and nutrient (nitrogen and phosphorus) supplementation over a period of 2 years in a factorial experimental design. We hypothesised that adding water and nutrients would result in an increased coppice growth response and replenishment of stored structural reserves. Adding water and nutrients significantly increased shoot diameter, shoot length and resprouting ratio for the initial 12 months after cutting but not stored structural reserves. Such a response pattern suggests that the initial growth of resprouting shoots may be strongly resource-limited, while resources are concentrated on supporting fewer resprouting shoots compared to a higher number.

Conservation implications: If practicing rotational tree harvesting, trees resprouting in resource-poor locations need a longer resting period to recover stored reserves and to also recover lost height after cutting.


Keywords

Replenishing; resprouting; supplementing; South Africa; total non-structural carbohydrates

Metrics

Total abstract views: 1626
Total article views: 2364


Crossref Citations

No related citations found.