Da'an Pattern Of Land Use Zoning And Security To Build

Patterns of land use of safety (security pattern, SP) is a Spatial Arrangement which is based on the optimization of land use (Land-use allocation) study, ues the sustainable land use as the goal, and considered land use economic, social and ecological effects.Da' an is located in farming-pastoral zone in Northern China,Yes Mikawa (Nenjiang, Tao' er River, Holling River) flowing through the land, the terrain is relatively flat and landscape types are Relatively monotonous, climate is characterized by less precipitation and is Mostly in the form of rainfall input precipitation, evaporation is greater than precipitation, ecological environment are more sensitive。Human irrational use the land in the past ,while ecological background is relatively week,all of which Increase the ecological risk of land use: floods, waterlogging, desertification and alkalization and degradation have occurred, seriously interfered the orderly development of socio-economic and ecological safety in Da'an city.The article in a comprehensive analysis Da' an City ecological risk propounded the water is affecting Da' an City ecological safety of the key factor. To build up Da' an City Land Use of the security situation, in 2008, based on Da' an City Land Use of data and meteorological data, through field survey and mapping using remote sensing and geographic information system methods and pluralistic statistical analysis, analytical Da' an city land use situation and ecological risk dual relations, in accordance with the intention to the extent of Da' an city, the city divided into three land area: Tao' er River basin area, Nenjiang basin area and Holling River basin area. Under the current land use situation and major ecological risk and different land (woodland, corner, dry farmland, paddy fields, Turf, ecological for water and water supply volume of water supply of relatively balanced and safe water the land use pattern, and formulated corresponding land ecological safety evaluation standards and management measures, build relative security land use pattern.