Sensitivity of short rotation poplar coppice biomass productivity to the throughfall reduction – Estimating future drought impacts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F18%3A00485273" target="_blank" >RIV/86652079:_____/18:00485273 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.biombioe.2017.12.028" target="_blank" >http://dx.doi.org/10.1016/j.biombioe.2017.12.028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biombioe.2017.12.028" target="_blank" >10.1016/j.biombioe.2017.12.028</a>

Result language

angličtina

Original language name

Sensitivity of short rotation poplar coppice biomass productivity to the throughfall reduction – Estimating future drought impacts

Original language description

We examined the effect of throughfall exclusion on aboveground woody biomass (AGB) productivity in a short-rotation woody coppice plantation. This study was carried out between the 3 rd and 7 th year (2011–2015) of the second rotation cycle in hybrid poplar plantation (Populus nigra × P. maximowiczii) in the Czech Republic. A partial-throughfall exclusion (R) treatment and a control (C) treatment were applied. Throughfall exclusion was set to 40% in 2011–2012 and increased to 70% thereafter. The annual mean (standard error) AGB productivity for C and R during 2012–2015 were 11.2 (0.84) and 10.1 (0.89) Mg ha −1 y −1 of dry matter (DM), respectively. The lowest AGB productivity and most pronounced reduction (18.8%) in the annual AGB productivity by the R treatment occurred in 2014 a year with the driest spring. The observed inter-annual variability in AGB productivity was not explained by precipitation nor by precipitation-treatment interaction. However, the annual AGB productivity variation depended (p = 0.002) on the throughfall totals during period May–July. The total harvestable biomass in 2015 reached 81.9 (7.2) and 75.0 (6.2) Mg ha −1 DM for the C and R treatments, respectively. Despite the non-negligible mean treatment difference (5.7 Mg ha −1 DM, i.e. 7.6%), the large between-plot variance and shifts in stand structure resulted in the nonsignificant differences. We suggest that once the root system is established, hybrid poplar plantations are relatively resilient to drought and might act as an income-stabilizing factor when traditional agricultural crops fail to deliver viable yields in drier climate.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biomass & Bioenergy

ISSN

0961-9534

e-ISSN

—

Volume of the periodical

109

Issue of the periodical within the volume

feb

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

182-189

UT code for WoS article

000424939200021

EID of the result in the Scopus database

2-s2.0-85040167432