Research On The Landscape Constructional Dynamical Changes Of The Major Huhhot City

The process of urbanization brings to a series of city ecosystem problem such as crowding, traffic congestion, the environment worsens . As a widespread phenomenon of the world, urbanization accelerating and bringing a great challenge to the sustainable development of the world. Therefore, the quantitative analysis of landscape space pattern all has the extremely vital significance to the city landscape appraisal and the management.This article take the main city of Huhhot built-up district as the research scope, in RS and under GIS technology support, carried on processing using GIS software to Huhhot of 1987 aerial photo and in 2002 QuickBird (quick bird) the satellite remote sensing picture . Based on the landscape ecology in the rank theory basic principle, will study the area division will be three ranks systems, first level will have 3 landscapes types, the second level will have 13 landscapes types, the third level will have 34 landscapes types. Unified Huhhot present situation chart of land utilization material, political area chart in 1987and 2002 withdrew various landscapes type chart spot quantity, the area, the area ratio, the average form-exponent in the investigation foundation, divides parameter and so on dimension, multiplicity, uniformity; Using the landscape's ecologic theory and the method, take Fragstats 3.3 as a tool, calculated the landscape area, the landscape area ratio, the average form-exponent, the landscape multiplicity, a landscape dimension and so on 10 landscapes spaces pattern index, carried on the quantitative evaluation to the Huhhot landscape space pattern. This research results will be helpful to correctly appraises in the Huhhot development construction process the ecology condition and its developing and construction with the relations of the nature and the humanity , will provide the technical support and the theory basis for reasonable development of the city and its the ecological environment protection. The analysis result indicated that:The Huhhot city in during this 15 years from 1987 to 2002 ,looked from the landscape type change that, (1) planted area of landscape has reduced, mainly transformed as the development construction process in awaiting construction with, the city community, the transportation path and the city structural area the landscape type and so on; (2) the ecology green landscape reduced, mainly was nearby the street , the path afforested isolation belt opens up the extension in the urban road in the process to reduce; (3)the inhabited area landscape and the city construction landscape increased, this is a evitable result of the urbanized .2.In the landscape space pattern research aspect, this research altogether selected 10 landscapes spaces pattern target to carry on the computation from the landscape unit characteristic, the landscape multiplicity and the landscape space configuration and so on three aspects, has carried on the quantitative evaluation to the Huhhot city landscape space pattern. The landscape multiple index and the uniformity index assume the drop tendency, this explained the landscape the degree is dropping. This kind of tendency had also reflected in the certain degree the humanity moves the intensity the increase, this causes the important reason which the landscape multiplicity drops.3. What is encouraging, Huhhot in the fast urbanized process, gradually strengthens along with the science development view idea instruction function, of 90's, the land development trend, the city merit energy region gradually has consummated, the landscape space pattern distribution gradually trend is reasonable.