TROPICAL GEOGRAPHY ›› 1997, Vol. 17 ›› Issue (4): 397-404.

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ASTUDY ON SPATIAL STRUCTURE VARIATIONS OF FOREST VEGETATION SCAPE IN FUJIAN

Qian Le-xiang1, Tao Li-xin2   

  1. 1. Research Center of Natural Resources, Fujian Teachers University, Fuzhou 350007;
    2. Geography Department, Henan University, Kaifeng 475001
  • Received:1996-07-01 Online:1997-07-30 Published:1997-07-30

Abstract:

Under the guidence of the idea of landscape and the method of GIS,the author develops thespatial information database to be used to analyse patches,irregularity and general feature of landscape of forest vegetation in Fujian.It is shown that the complexity of topography and disruptionsof mankind are primary physical parameters of controlling ecosystem functions of landscape(suchas motions of water and soil,rainfall and temperature),diversity of living things and efficiencyof soil water.The synthetical characters of landscape calculated reflect briefly the influences ofthose two physical paraneters.StructUre and shape of artificial vegetation (especially forpaddy) suit fundamentally to toPography.Both southern subtropical rainforest and middle subtropical evergreen broad-leaf forest exist at lower fractal dimension and simple geometrical Patterns.Their shapes are obviously different from these of toPography condition and structures ofothers landscape tares which are more complex.It indicates that human activities have produceddeep influences on the structure of the two zonality landscapes.The author shows spatial distribution of forest vegetation by GIS,surveys spatial strUctureof forest vegetation by quantitative models.From those it can be explained how the forest vegetation in Fujian is restricted by physical,biological,social and economic factors.

Key words: Fujian, landscape, Spatial structure, GIS Patch