Competition and Coexistence of Linum perenne,Heliopsis helianthoides and Echium vulgare in Mixture
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2019年02
- Page:
- 94-102
- Research Field:
- Publishing date:
Info
- Title:
- Competition and Coexistence of Linum perenne,Heliopsis helianthoides and Echium vulgare in Mixture
- Author(s):
- LIU Ying; YUE Hua; XIA Bin
- (College of Landscape,Northeast Forestry University,Harbin,Heilongjiang 150040)
- Keywords:
- Linum perenne; Heliopsis helianthoides; Echium vulgare; interspecific competition; wildflower meadow
- PACS:
- -
- DOI:
- 10.11937/bfyy.20182335
- Abstract:
- The competition and coexistence of different plant species was the theoretical basis for the sustainable construction of flower landscape morphology and quality.In this study, Heliopsis helianthoides,Linum perenne and Echium vulgare were used to construct the flower landscape,two sowing modes were set for outdoor broadcast (single sowing of Heliopsis helianthoides,single sowing of Linum perenne,single sowing of Echium vulgare,Linum perenne and Heliopsis helianthoides in mixture 1∶1,Heliopsis helianthoides and Echium vulgare in mixture 1∶1,Linum perenne,Heliopsis helianthoides and Echium vulgare in mixture 1∶1∶1).High growth rate,relative biomass (RY),relative density (RD),competitive rate (CR) and total relative yield (RYT) of the three plants under different sowing modes were analyzed.In this way,that competition and coexistence mechanism of the three plants were investigated in equal proportion.The results showed that the competitiveness of the three plants was as follows:Echium vulgare>Heliopsis helianthoides>Linum perenne.Among them,the mixed seeding with Linum perenne promoted the growth of Heliopsis helianthoides,and the mixed seeding with other plants had an inhibitory effect on the growth of Linum perenne,but had no significant effect on the growth of Echium vulgare.Under the condition of such as proportion of mixed seeding,T1,T2,T3,T4 treatment did not have the stability of mixed flowers plant community,was applied to three plants mixed seeding plant landscape should be appropriate to reduce the mixed proportion of Echium vulgare,and improved the perennial root flax mixed seeding rate,so as to ensure the sustainability of the second year in a landscape and enhances the stability of plant community.
Last Update: 2019-02-20