Soil nutrient status, nutrient return and retranslocation in poplar species and clones in northern Iran
Ali Salehi (1) , Neda Ghorbanzadeh (1), Maryam Salehi (2)
iForest - Biogeosciences and Forestry, Volume 6, Issue 6, Pages 336-341 (2013)
doi: https://doi.org/10.3832/ifor0976-006
Published: Aug 29, 2013 - Copyright © 2013 SISEF
Research Articles
Abstract
In this study several same-aged poplar species and clones were selected including Populus deltoides Marsh. CV. “Lux” (P.d “Lux”), Populus deltoides Marsh. CV. “Harvard” (P.d “Harvard”), Populus x canadensis Moench “Triplo” (P.xc “Triplo”), Populus x canadensis Moench “I-45/51” (P.xc “I-45/51”), planted in poplar research station about 20 years ago in the north of Iran, and Populus caspica Bornm. (P. caspica) as endemic and endangered poplar species. Some quantitative characteristics of the trees and soil samples were taken based on completely randomized block design. Samplings of live and senescent leaves were carried out in two-stages, mid-summer during the peak nutritional activities of trees and mid-autumn for senescent leaves. Soil samples were analyzed to determine organic carbon (OC), total nitrogen (N), available phosphorus (P) and exchangeable potassium (K). OC, total of N, P and K were also determined in live and senescent leaves. The results showed that P.d “Harvard” had the highest total height, DBH and diameter of crown compared to the other species and clones. The amount of OC, N and P in soil and live leaves of P.d “Harvard” clone are more than those of the other species and clones. OC, N, P, and K returned by senescent leaves were higher and lower for P.d “Harvard” and P. caspica respectively. P retranslocation for all of the clones and species was higher compared to N and K. The highest retranslocation percentage was observed in P. caspica (N=18.93, P=39.63, K=24.02) and the lowest (N=12.09, P=32.46, K=21.14) in P.d “Harvard” clone. It could be concluded that poplar species and clones have different nutritional requirements and retranslocation capabilities. It appears that P.d “Harvard” clone showed higher quantitative growth it could be beneficial for maintaining the soil nutrient status for successive plantings.
Keywords
Poplar, Retranslocation, Nutrient Return, Soil Properties, Plantation
Authors’ Info
Authors’ address
Neda Ghorbanzadeh
Department of Forestry, Natural Resources Faculty, University of Guilan, Guilan (Iran)
Department of Forestry, Natural Resources Faculty, University of Tehran, Tehran (Iran)
Corresponding author
Paper Info
Citation
Salehi A, Ghorbanzadeh N, Salehi M (2013). Soil nutrient status, nutrient return and retranslocation in poplar species and clones in northern Iran. iForest 6: 336-341. - doi: 10.3832/ifor0976-006
Academic Editor
Roberto Tognetti
Paper history
Received: Feb 18, 2013
Accepted: May 11, 2013
First online: Aug 29, 2013
Publication Date: Dec 02, 2013
Publication Time: 3.67 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2013
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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