The Characteristic And Spatial Effects Of Man-land Interaction In Fast Urbanization Areas

The rapidly urbanizing areas are the ones in which the human factors are the most intensive, human factors and natural factors have the most complicated interactions, geographic spaces have the most frequent conversions,spatial conflicts are the the most intensive, the spatial risk are most prominent, also it’s a complex giant syste-m,having the apparent dynamic boundaries, in which a variety of material flows, energy flows, information flows highly active open, they are the most complex man-land territorial system on earth. Stu d-ing the characteristics and spatial effects of human-natural syste m’s interaction can be helpful to reveal the mechanism of the rapi-dly urbanizing areas,and cor-rectly guide the healthy development in rapidly urbanizing areas.This article are based on the theories of man-land territorial s y-stem, sustainable development theory, dissipative structure theory, c-onflict theory, set the typical region which is in a fast urbanizat ionperiod—hangzhutan urban agglomeration as study area, on the basi-s of economic and social statistical datas, current land use da tas, remote sensing images, urban and rural planning dates, with thehelp of remote sensing image processing software (ENVI4.0), GIS analysis software (Arc-GIS10.0) and statistical software (SPSS), using the ecological footprint method, vulnerability analysis metho d to study the characteristics and spatial effects of human-natural s ystem’s interaction in Changzhutan urban agglomeration, the results show th-at:(1)The rapidly urbanizing areas are the ones in which human f-actors and natural factors have the most complicated inte ractions, geographic spaces have the most frequent conversions,as t he optimizin-g development zone and key development zone,it nee d to be contr-olled effective. In recent years, the regional PRED s ystem of Chang-zhutan urban agglomeration optimized,but the probl ems still exist, s-uch as the aging of the population and employme nt pressure, low efficiency of resource utilization and environmenta1pollution.(2) th-e characteristics of human-natural system’s intera ction of Changzhuta-n are mainly in its’diversity of interaction pat terns, the complexityof interaction processes, the increasing of inter action intensity, the ri-sk of interaction effects. Its’ diversity of inte raction patterns includeman to man interaction, surface-to-surface in teraction, man to natur-al interaction and natural’s reaction to huma n, the complexity of in-teraction processes are mainly performance d in the complex effects of the fast urbanization to the river hydr ology,climate environment,topographical feature, ecological process, the transformation of Indus-tries and populations; the increasing o f interaction intensity show-s in the increasing of the density of G DP, population density, fixedasset investment density and other indi cators; the risk of interactioneffects shows in the ecological deficit was widening, ecological carr-ying capacity was declining, the sus tainable development of man-land system is challenged; the space effects of human-natural systems interaction can be analyzed from t he spacial evolution and degenera-tion of space function, spacial re sources agglomeration and diffusio-n, spacial disparities and conver gence, spacial stability and change, spacial conflict and coordinatio n. Guiding the spacial resources agg-lomeration and diffusion, coor dinating the spacial disparities and co-nvergence, promoting the spa ce function evolution, improving the orderliness of space structure on the basis of diversity and heteroge-neity, are the fundamental ways to resolve the spatial conflict, pro-moting the spatial coordina te, optimizing man land interaction spaceeffect.