关键词: 呼和浩特市草坪草, 野生羊茅, 引进羊茅, 竞争特性, 生理生化指标, 辛普森指数

Abstract:

To explore how to effectively protect the native wild fescue and how to effectively improve its disadvantages and play its advantages, the experiment analyzed the changes of the Simpson index and physiological and biochemical indicators of the native Festuca ovina L. in Hohhot and introduced Festuca species ‘Houndog Ⅴ’ at the different trim frequencies, planting densities and processing temperatures using the favourable environment hypothesis and the spatial heterogeneity hypothesis. It is concluded the effects of various processing factors on the competition and survivability between native Festuca ovina L. and introduced Festuca species were obvious. Results showed that native wild fescue had good cold resistance and could be considered as Hohhot turfgrass. However, its trimming resistance was poor, so attention should be paid to the improvement of these aspects.

Key words: Hohhot turfgrass, Festuca Ovina L., Introduced Festuca, Competitive characteristic, Physiological and biochemical indicators, Simpson Index