| The study of spatial pattern is the structure characteristic and the internal function relation of each part of the landscape. In the landscape management and planning, you can draw lessons from the results of the analysis of the spatial pattern, based on these results, you can understand the relationship between the composition of the landscape and ecological processes and functions. In this paper, the spatial pattern of landscape patches in the Long Chi National Forest Park is studied by using the uniformity theory.Through the Forest Resources Management survey data and the relevant forest distribution map data in 2015 Long Chi national Forest Park, forest landscape patch classification system in constructed area, to further understand the classification of forest landscape patches and draw the sketch map of distribution; using the research methods of landscape ecology to carry on the statistical analysis of plaque classification features, size, shape and characteristics fragmentation index; use the spatial analysis function of GIS, the extraction of aspect, slope, elevation and other elements by DEM; at the same time, use the uniformity theory to research of the space pattern of forest landscape patches in Long Chi national Forest Park and different pattern type under different terrain in research area, the main results are as follows:①According to the analysis of landscape pattern, the number, area and perimeter of the landscape patches in the Long Chi National Forest Park are different. In research area, broadleaved forest landscape and Chinese Fir forest landscape has the advantage of perimeter and area, which total area reach to about 70% and the total perimeter is about 60% of the various types of patch perimeter in research area. The area and perimeter of each type of landscape patches are greatly different. A small patch in research area accounts for 97.44% of the total number of patches, which indicate that size structure are granular in Long Chi National Forest Park landscape.②According to the shape characteristics of the landscape patch, we can learn that broadleaved forest landscape patch shape is more complex than other types, and patches connect well, fragmentation and patch separation degree are not high. The bamboo forest landscape patches, cypress forest patches and sparse woodland landscape patches are different, their fragmentation are more serious, and comply with the theory of human factors affecting the degree of landscape fragmentation. Shrub land landscape types of patch shape is more complex, which relate to the implement the policy of returning farmland to forests, the implementation of forestation programs and the full use of terrain. No tree forest landscape patches connect with other landscape patches mostly, so its shape is irregular.③With the elevation change, the landscape patch types of the Long Chi National Forest Park are all single peak type. Most of the landscape patches are distributed in the altitude of 900-1200m.Broadleaved forest landscape patch distribution is not fixed, more extensive. Chinese Fir forest landscape patch are distributed equally at five elevations, economic forest landscape patch is mainly occupied below the altitude of 1200m. This is because economic forests has the requirements about high quality site, close to the point of residents and facilitate the management. In addition, the distribution of landscape patches in different slope is not average. From an overall perspective, the area ratio of each forest type is increased with the slope gradient, but reaching a certain value, it will decrease with the increase of the slope, the distribution of landscape patches approximate to normal distribution. Except the cypress forest patches and sparse woodland landscape patches, the rest of the landscape patch types are distributed imbalance in the different slope and the distribution area are largely different according to the different slope. The distribution of landscape patch types in no slope is less.④Research on the spatial distribution pattern of landscape patches in the Long Chi National Forest Park by using the theory of uniformity. The results showed that the spatial distribution type of landscape patches in Chinese Fir forest and broadleaved forest landscape patches were respectively random and average. At the same time, due to the change of terrain (elevation, slope and aspect), there are different distribution pattern types. |
