Effect Of Clonal Growth Of Iris Lactea Var.chinensis Under Different Utilization

Iris lactea Pall. var. chinensis (Fisch.) Koidz.is the kind of wide-spread plant. Because of its beautiful and specially shaped, it is preferable in viewing and admiring as garden plants. It is also used for ecological environment control since its drought-, salt- and cold-tolerance characteristics. Because there are Iridin and Irisoline in the leaves, sheep and cattle don't eat them during growing period. When they dried up in autumn, sheep and cattle like to eat them.Study on different habitats, I.lactea's ecological adaptation feature is inert strategy. Its life history strategy is stress-tolerator strategy. During it grows in unfavorite place, such as in closure, alternate grazing, more biomass allocation is transported to rhizome and root. I.lactea has long living time even it is under resource stress or insufficient light.I.lactea is a kind of phalanx growth form clonal plant. When it is growing in favorite place, it can effloresce and fructify. The fruit biomass is account for 7.43% of total biomass. It has the characters of phalanx growth form plant. To spread or regenerate is more depended on seeds. Because its tillering node is short and growing form is in tufts or clumps, it can tolerate trample. When I.lactea is added in regeneration and grassland reclaim, it has a significant ecological meaning.