Changyi Green Expo is the latest development achievement of greening seedlings and garden industry in northern China. It is a high-end summit to discuss the development trend of seedling wood industry, exchange production information and promote seedling trading. It has comprehensive and authoritative characteristics and exchanges information with seedling gardening enterprises. Focusing on product trading, we will extensively cooperate with Miao wood industry at home and abroad, build a platform for production and demand, promote the rapid development of cultural tourism and investment attraction, and hold a series of green activities such as expert lectures, enterprise forums, investment signing, calligraphy and painting exhibitions, and garden photography art exhibitions. The 2003 Shandong (Changyi) Seedling Fair was held on1October 20th from 6: 00 am to 6: 00 am. Sponsored by Shandong Forestry Bureau and Weifang Municipal People's Government, and undertaken by Forest Seedling Station, Weifang Forestry Bureau and Changyi Municipal People's Government, with the theme of "Green, Environment and Science and Technology", 380 exhibitors signed 3 12 purchase and sale contracts for seedlings, with a transaction amount of RMB 132 billion and 2 1 investment projects, with a total investment. The 2004 China (Changyi) Northern Green Seedling Expo was held from September 19, 2009 to July 10/7, 2007. It was supported by the Office of the National Greening Committee, sponsored by Shandong Greening Committee, Shandong Forestry Bureau and Weifang Municipal People's Government, with the theme of "people-oriented, building an ecological home". 2005 China (Changyi) Northern Greening Seedling Expo was held from September 19 to October 7, 2009, with special support from the National Greening Committee, sponsored by Shandong Greening Committee, Shandong Forestry Bureau, Weifang Municipal People's Government and American Seedling Association, and undertaken by Shandong Forestry Seedling Association, Weifang Forestry Bureau, Changyi Municipal People's Government and Weifang Kingstar Industrial Co., Ltd. With the theme of "Building a Harmonious Society", 12 exhibitors signed more than 630 contracts. The 11th China Garden and Flower Information Exchange Conference and the 2006 China (Changyi) Northern Seedling Expo were held from September 6th to1October 7th, 2006. Supported by the Office of the National Greening Committee, China Flower News, Shandong Forestry Bureau and Weifang Municipal Government, and jointly sponsored by Changyi Municipal People's Government, Weifang Forestry Bureau and Weifang Kingstar Industrial Co., Ltd., it attracted more than 700 exhibitors, with more than 5,000 exhibitors and more than 30,000 professional visitors. During the meeting, 300 seedling purchase and sale contracts 19 were signed, with a total investment of 770 million yuan and foreign investment of 620 million yuan, including 2 overseas projects. From September to September, 2007, contracted foreign investment was19.8 million USD. Supported by the Office of the National Greening Committee, China Flower News, Shandong Forestry Bureau and Weifang Municipal Government co-sponsored, and undertaken by Changyi Municipal People's Government, Weifang Forestry Bureau and Weifang Kingstar Industrial Co., Ltd., the conference highlighted the characteristics of humanity, science and technology and internationalization. There are more than 70 exhibitors, including 20 large foreign enterprises from Japan, the United States, Belgium, Germany and other countries, 8 garden colleges such as China Agricultural University, Zhejiang Academy of Forestry and Shandong Agricultural University, more than 600 enterprises from more than 20 provinces and cities such as Zhejiang, Jiangsu and Anhui, with more than 5,000 exhibitors and more than 30,000 professional visitors. Signed investment projects 19, with a total investment of 770 million yuan and foreign capital utilization of 620 million yuan, including 2 overseas projects and contractual foreign capital utilization of19.8 million US dollars.