Study And Comprehensive Utilization On Solidago Canadensis L.

According to taxonomic research,the Solidago Canadensis L., known as"Huangying"in China, originates in northern America, introduced as a floricultural plant in Shanghai and Nanjing in 1935. Through a long period of incubation,it gradually get used to the climate and geographical environment( especailly in East of China) and becomes a kind of ill weeds. So far, it is reported Solidago canadensis L exist in most part of China except areas like Tibet, Qinghai and Inner Mongolia. After 1980s, Solidago canadensis L. has become a weed with excess growth in large areas, pushing out other plants, which causes zonal vegetation degeneration and the reduction of biodiversity. What's more, it also has great influence on growth of the plant, resulting a decrease in yield or even total crop failure. As a result, Solidago canadensis L. is called"Plants'killer".Compared with Chinese wild Solidago decurens, Solidago canadensis L. spread like a flood in many areas. Solidago canadensis L. is a kind of wild perennial herbs, with high growing and breeding capabilities. Because Solidago canadensis L. have well-developed root system and can as well make use of adventitious bud grown on the root for a sexual reproduction. With the mentioned advantages, the Solidago canadensis L. adapts to the environment of China greatly,expanding rapidly. It has become a typical exotic weed in just a few years. The Solidago canadensis L. has been clasified as one of the 16 harmful biological invasions by the State Environmental Authority, moreover, some relevant departments categorize it into Weed of Level 4, severely harming the cropland. To be listed as a supplementary harmful organism by Authorities in 2005, the Solidago canadensis L.was undertaking a thorough eradication organized by the government.Presently, a great quantity of human resource as well as material resources has been cost on to root out the Solidago canadensis L. by relevant central and local bureaus. Nevertheless, such an solution to some degree is negative, thus, it is highly significant to work out a strategy to not only erase the plant fundamentally, meanwhile, comprehensively utilize the components of organism, turning the harmful things to treasures. In this study ,we used Solidago canadensis L.as an green feed for rabbits, goat and cow, and as an drug for goat skin disease . The result showed that Solidago Canadensis not only could promoted animal growth, but also as an good drug for goat skin disease. in this way, we can utilize the Solidago canadensis L., discovering a fairly new strategy to settle the issue of the Solidago Canadensis L.