Study On Landscape Diversity Of Shoucheng Nature Reserve In Guangxi

Based on the quantitative description and analysis of forest landscape composition, structure, and spatial pattern in Shoucheng Nature Reserve, the thesis clarifies the mountain forest resources, reveals the spatial structure of forest types as well as the regular pattern of spatial changes from the perspective of the landscape. It provides a theoretical reference for forest landscape planning and forest landscape ecosystems optimization. Meanwhile, it has an important significance to improve the forest structure of Shoucheng Nature Reserve, realize the optimal allocation of forest spatial layout, and develop the ecological function of water conservation forest.On the basis of a great deal of domestic and international documents, combining the characteristics of the study area, selecting forest landscape composition, structure, and spatial pattern in Shoucheng Nature Reserve as the research content, taking landscape ecology as the theoretical basis, using the remote sensing images, together with historical data (all types of forest survey data) and plots measured data, and making full use of a variety of methods, such as remote sensing technology,geographic information system technology, quantifying pattern analysis technology, space geographic statistical technology, the thesis systematically studies the forest landscape pattern in Shoucheng Nature Reserve. Main conclusions are as follows:(1) Remote sensing technology has obvious advantages in large areas of forest resources monitoring.Using 30m spatial resolution of Landsat5-TM remote sensing data on the macro scale monitoring research in Shoucheng Nature Reserve are both Convenient and practical.(2) The forest landscape of Shoucheng Nature Reserve were classified into four categories include landscape of farmland, landscape of residents, landscape of waters and landscape of forest, although the computer automatically classification method has many advantages, classification results are not satisfactory by the shadow and many other factors. So human-computer interactive visual interpretation classification was selected in this Research, supplemented by splots data, Forest map and aerial photograph and other information, more satisfactory results of the classification was obtained.(3) With indices calculation of forest landscape spatial pattern in Shoucheng Nature Reserve, and through the researches of patches type level and landscape level, it is found that: The composition, structure and spatial distribution pattern of in Shoucheng Nature Reserve is extremely uneven, and the spatial hetero characteristics is significantly.(4) Nine landscape index were selected in this study selected, through the statistical analysis software of Fragstas, we had a more comprehensive understanding and awareness to the landscape and the spatial distribution pattern in Shoucheng Nature Reserve. The landscape diversity of Shoucheng Nature Reserve was increased year by year, the proportion of all types of landscape became more uniform, the phenomenon that a landscape dominant was gradually replaced, the shape of different landscape gradually tend to regular over time. It reveals that the impact of Human activities was persistent and growing strongly. Into the 21st century, with the quality improving of human science and culture and the implementation of various policies, the degraded ecosystems of natural forest landscape have been restoring, the proportion of artificial landscapes were increasing, landscape pattern was further optimized.(5) Through the research of terrain factor differentiation of forest landscape pattern in Shoucheng Nature Reserve, it is found that: With the changes of altitude and local topographic features (aspect, slope), vegetation is also experiencing regular changes, and the impacts are various from different terrain-grades which presents a significant distribution.