Guang 'an, a prefecture-level city under the jurisdiction of Sichuan Province, is located in the east of Sichuan Basin, in the humid monsoon climate zone in the middle subtropical zone, with distinct seasons, warm climate, abundant rainfall and abundant products. Jialing River and Qujiang River meander into the Yangtze River, and Huaying Mountain, Tongluo Mountain and Mingyue Mountain are distributed in the east of the city, covering an area of 6,339 square kilometers. Administer 2 districts and 3 counties, and manage 1 county-level cities; By the end of 20021,the total registered population of Guang 'an was 4.532 million.
Guang 'an has a long history. Since the second year of Kaibao in the Northern Song Dynasty (969), the Guang 'an Army was established with the meaning of "Guangtu Anji", and the name of "Guang 'an" has been used ever since. Guang 'an was established in July 1993, and 1998 was withdrawn to set up a city. Guang 'an strives to become a model city for the construction of the twin-city economic circle in Chengdu-Chongqing area. Guang 'an has trained a large number of experts, scholars and people with lofty ideals represented by mathematician He Lu and revolutionary martyr Xu Jianye.
Guang 'an has a profound cultural background, which breeds unique folk customs such as Yun Tong Dance and Yuechi County Lantern Festival. Guang 'an was rated as a national civilized city and a national garden city. In 20021year, Guang 'an achieved a regional GDP of141780 million yuan, an increase of 8. 1% over the previous year (the same below).
Plant resources in Guang 'an:
The forest vegetation in Guang 'an belongs to the middle subtropical evergreen broad-leaved forest and mixed coniferous and broad-leaved forest, and there are many kinds of forests. Gymnosperms include Mesozoic Pinaceae, Cupressaceae, Ginkgo biloba and Metasequoia glyptostroboides, and Cenozoic Taxodiaceae.
Angiosperms include Moraceae, Celastraceae, Rhamnaceae, Aceraceae, Magnoliaceae, Lauraceae, Aceraceae, Hamamelidaceae, betulaceae, Juglandaceae, Menispermaceae, Mesozoic Ericaceae, and Cenozoic Amaranthaceae, including Amaryllidaceae, Dysosmaceae, Calophyllaceae, and Styraaceae.
According to the investigation of forest resources, there are 392 species of plants in China (excluding nearly 1,000 species of medicinal plants), belonging to gymnosperms and angiosperms, belonging to 1 16 family, among which pteridophytes 12 family and 18 species. There are 8 families and 27 species of gymnosperms. There are 96 families and 347 species of angiosperms.
Forest vegetation types in China include subtropical evergreen broad-leaved forest, evergreen and deciduous broad-leaved mixed forest, coniferous and broad-leaved mixed forest, evergreen broad-leaved forest, coniferous and broad-leaved mixed forest, bamboo forest, shrub and artificial vegetation. There are two rare plants in Guang 'an: Alsophila spinulosa and Metasequoia glyptostroboides, which are national first-class protected plants. Seven national second-class protected plants, such as Ginkgo biloba and Eucommia ulmoides; Gastrodia elata, Phoebe bournei and other national third-class protected plants 10 species.