火后牛油果(Vitellaria paradoxa C.F.Gaertn.)幼苗恢复:气体交换、生长和生物量分配评估

IF 1.1 Q4 ENVIRONMENTAL STUDIES

Forests, Trees and Livelihoods Pub Date : 2019-04-08 DOI:10.1080/14728028.2019.1600433

D. Tom-Dery, K. Jensen, C. Reisdorff

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引用次数: 2

摘要

摘要Shea（Vitellaria paradoxa C.F.Gaertn）原产于热带草原生态系统，由于旱季长，可燃生物量积累，该生态系统容易发生周期性的山火。在温室试验中，研究了模拟火灾对乳木果幼苗气体交换、生长和生物量分配的影响。我们假设，火灾降低了再生叶片的光合性能，导致乳木果幼苗的生长降低和生物量分配改变。火处理16周后，测得的光合、生长和生物量参数在火处理的幼苗和对照幼苗之间均未显示出显著差异。因此，Shea幼苗在火灾4个月后表现出异常的气体交换性能、生长和生物量分配模式恢复。

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Shea (Vitellaria paradoxa C.F.Gaertn.) seedlings recovery after fire: gas-exchange, growth and biomass partitioning assessment

ABSTRACT Shea (Vitellaria paradoxa C.F. Gaertn) is native to the savanna ecosystem, an ecosystem prone to periodic bushfires due to the long dry season and accumulated combustible biomass. We studied the effects of simulated fire on shea seedlings gas exchange, growth and biomass allocation in a greenhouse experiment. We hypothesized that fire decreases photosynthetic performance of regrown leaves leading to lower growth and altered biomass allocation in shea seedlings. Sixteen weeks after fire treatment, none of the measured photosynthetic, growth and biomass parameters showed a significant difference between fire treated seedlings and, control seedlings. Shea seedlings have therefore shown exceptional recovery of gas exchange performance, growth and biomass allocation patterns 4 months after fire.

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来源期刊

Forests, Trees and Livelihoods Agricultural and Biological Sciences-Forestry

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Forests, Trees and Livelihoods originated in 1979 under the name of the International Tree Crops Journal and adopted its new name in 2001 in order to reflect its emphasis on the diversity of tree based systems within the field of rural development. It is a peer-reviewed international journal publishing comments, reviews, case studies, research methodologies and research findings and articles on policies in this general field in order to promote discussion, debate and the exchange of information and views in the main subject areas of.