Studies on spatial pattern and dynamics for landscape elements in guandishan forest region,Shanxi,China
关帝山林区景观要素空间分布及其动态研究

Supported by ARC/INFO software,and using GIS technique and landscape ecological principles,and analyzed the forest landscape spatial pattern in Guandishan Forest Region of Shanxi Province,China.A serial method and two indices are provided to fit forest landscape pattern analysis.Some basic dynamic features of forest landscape pattern in study area are explored and explained in an aspect.Research results showed that,supported by GIS,with network grid sampling in total landscape,using Standard Area Measurement Method for the determination of investigation value in plots,landscape distribution characteristics and spatial pattern can be objectively analyzed by Morisita Index or Executive Index in study area.Landscape pattern dynamic laws can also be explored and expounded by comparing these two indices which come from multiple stages of digital landscape maps.It was also indicated that the size of network grid plot significantly affects result of landscape pattern analysis.So,it should be as small as possible in principle,but it can be controlled by mean and standard difference of studied landscape element patch size in practice.It was proved that Fitness Test of probability distribution models are not effective to analyze forest landscape spatial pattern.It was presented that,since the end of 1950s,the landscape in study area has been in a restoring succession process,forest distribution range has being expanded gradually,and landscape quality has being grow up,zonal distribution pattern of forest types gradually set up.The dynamic of forest type distribution pattern in three stages presented significant different characteristics.