The Application Of 3S Technology In The Karst Areas Of Urban Green Space Information Retrieval And Management

Urban green spaces to improve the ecological environment, biological diversity and the maintenance of urban-urban balance has overlooked the role of ecosystems, the city is an integral and important part of the ecosystem. In recent years, the countries and regions in the process of urbanization in the growing and the urbanization process will bring a series of ecological problems, such as: urban heat, water nutrient over-enrichment, agricultural land area dropped sharply, and environmental pollution, which is bound to result in the sustainable development of cities is a challenge. Therefore, this mountain city in Guizhou Karst -- Guiyang, as a key research center area of its urban green information extraction. As in the karst mountain Guiyang City, its karst topography developed well, karst water shortages and environmental significance of the dual structure, fewer territories, forest shortage, which make itd self-regulating capacity of the ecological environment lower than before, highly vulnerable to man-made factors, Such natural conditions make the city green in a pattern of distribution and ecology of the entire city will play a decisive role in the extraction of urban green...