外来松香对本地荨麻的竞争:田间试验

IF 0.2 Q4 ECOLOGY
L. Ende, Sophie-Juliane Schwarzer, Alexandra Ebner, M. Lauerer
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引用次数: 0

摘要

松香(杯状植物)原产于北美,在德国越来越多地用作生物能源作物。在几个欧洲国家已经发现了该物种的自发发生。为了评估perfoliatum的传播对生物多样性可能造成的风险,我们在德国拜罗伊特(Bayreuth)进行了为期四年的野外试验,研究了该物种与本地和高度竞争的荨麻(Urtica dioica)的竞争力。虽然其生物量被周围的雄雄花大大降低,但在雄雄花中长得很好。与种内竞争相比,周围雌雄蕊的突出面积、株高和生殖潜能的降低幅度较小或相似。此外,perfolium显著抑制竞争性雌雄花的生长。因此,在中欧本土植物区系中,长叶葡萄的定居和建立以及对非竞争性植物物种的抑制是可以想象的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Competitiveness of the Exotic Silphium perfoliatum against the Native Urtica dioica: A Field Experiment
Silphium perfoliatum (cup plant) is native to North America and is increasingly used as a bioenergy crop in Germany. Spontaneous occurrences of this species have already been detected in several European countries. To assess the possible risk to biodiversity by spreading of S. perfoliatum, we investigated the competitiveness of this species against the native and highly competitive Urtica dioica over four years in a field experiment in Bayreuth (Germany). S. perfoliatum grew well among U. dioica, although its biomass was strongly reduced by surrounding U. dioica. Projection area, plant height, and reproductive potential were less or similarly reduced by surrounding U. dioica as by the intraspecific competition. Moreover, S. perfoliatum significantly suppressed the growth of the competitive U. dioica. A settlement and establishment of S. perfoliatum in the native flora of Central Europe and a suppression of uncompetitive plant species are therefore conceivable.
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来源期刊
自引率
0.00%
发文量
15
期刊介绍: The main aim of the International Journal of Ecology & Development (IJED) is to publish refereed, well-written original research articles, and studies that describe the latest research and developments in ecology and development. It also covers the many potential applications and connections to other areas of Ecological Science, economics and technology such as the use and development of mathematics/statistics in ecology or use and development of economics for ecology & development or inter-disciplinary nature of applications for Ecology & Development. International Journal of Ecology and Development is published three issues in a year in Winter, Summer and Fall.
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