Adaptability Of 10 Wild Groundcovers

Wild groundcovers is a kind of groundcovers which are not yet cultivated or used by human.They not only have the advantages of groundcovers,but also can stand for the characteristics of cities,lighter the man-made environment and exert bigger ecological benefits. Wild gruoundcovers have broad prospection to develop and applicate. With the more and more extensively application of wild groundcovers recently, people know them profoundly and also do some experiment to them.But these experiments are only aimed at their biological characteristic,propagation technology and so on,the study of systemicly physiological and biochemistrical characteristics are very few.10 wild groundcovers were studied in this paper with their shade-tolerance,drought-resistance and heat-tolerance etc..The sequence of stress-resistance of the 10 wild groundcovers were concluded ,and physiological and biochemistrical indices suit to identify stress-resistance are chose,and physiological and biochemistrical basis of stress-resistance was discussed .The main results and conclusions as follows:1.The growth and development of the 10 wild groundcovers was recorded. Duchesnea indica,Ranunculus repens,Potentilla flagellaris,Glechoma hederacea have the charactistic of sprouting early in the spring and growing rapidly. Inula japonica,Solanum septemlobum,Clematis heracleifolia,Potentilla chinensis's florescence appear in August (the 2008 Olympic time) and Dendranthema lavandulifolium var.seticuspe's florescence appear around 1st October (the Chinese National Day). Polygonatum odoratum's florescence appear around 1st May (National Worker's Day).The 10 plants not only have individual beauty ,but also have group beauty.They all have broad prospect of landscape application.2.At three light levels to the 10 wild groundcovers,chlorophyll content,chla/b,stomata density,leaf anatomical structure and photosynthetic characteristic were studied.Combined with the appearance expression of the plants under different irradiance levels,we concluded that:the four creep plants(include Duchesnea indica,Ranunculus...