Taking an arid interior district of the Shiyang River basin as study area, this paper analyzed the natural succession of ecological environment and the landscape pattern characteristics under the human activity interference in the past 20 years. The results showed that the landscape utilization developed to the heterogeneous direction, indicating the proportional difference between various landscape types was increasing. This kind of change has reflected the human activity’s influence to the whole landscape on a certain extent. According to the principle that the movements of, energy and material in a landscape are related to some factors such as distance, time, impedance, etc., this study adopts the minimum accumulative resistance surface, the minimum cost resistance model, and uses the surface diffusion technology to analyze the compactness of landscape structure and the spatial difference of ecological function. Then constructs some landscape components such as source, corridor and ecological node to strengthen the spatial connection of ecological network, and further puts forward the proposals of the landscape pattern optimization.
WEI Wei, ZHAO Jun, WANG Xu-feng
. Landscape Optimal Utilization of Shiyang River Basin Based on RS and GIS[J]. SCIENTIA GEOGRAPHICA SINICA, 2009
, 29(5)
: 750
-754
.
DOI: 10.13249/j.cnki.sgs.2009.05.750
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