Based On The Geographic Information System (GIS) In China Urban Agriculture Environment Problem Research

The history of urban agriculture in China has a certain time, it generally exists in the urban ambient radiation area or the inner city, the urban market demand as the guidance, offer a variety of services for urban development. Now many areas are the urban agriculture into the city planning, as an inseparable part of the city, urban agriculture in the social status, life becomes more and more important..The environment problem has become a big problem in every country in the world faces, agriculture is one of the important factors affecting the environment. Urban agriculture will encounter many environmental problems in the process of construction and development, the urban agriculture construction and development and environmental factors together, in the course of construction and development of urban agriculture to give full consideration to the impact of various factors in the environment, so that the development of urban agriculture to follow the ecological benefits, social benefits and economic benefits, maintain, improving the urban environment.Now is the era of information, the use of information technology determines the direction of economic development in the very great degree. Agriculture is transforming from traditional agriculture to modern agriculture, to increase the level of agricultural information in china. Geographic information system is a representative geographical information the rise in recent years, information technology, can provide digital information resources; management of spatial information; regional planning; disaster assessment; agricultural production activities to provide decision support service.This is the geographic information system in a relationship with urban agriculture, environmental problems encountered in the construction and development of urban agriculture in solution using geographic information system. The analysis function of GIS include analysis, overlay analysis, network analysis, buffer analysis and spatial data query. By using the superposition analysis to solve the problem of urban agriculture vegetation, landscape ecological problems; using network analysis to solve the problem of water resources; analysis and solve the land problem, the problems of water resources exploitation of buffer; analysis is the most basic function of GIS spatial data query, can check all geographic information needed for development and construction of the geographic information system the.Geographic information system according to the local actual situation, used a different method to solve the various environmental problems and development of agricultural construction in local city, the development of urban agriculture is not only to promote the economic growth of the cities, but also maintenance, improving the urban environment.