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The Analysis And Planning On Landscape Of Forest In Huzhong Forest On GIS

Posted on:2011-09-30Degree:MasterType:Thesis
Country:ChinaCandidate:Z Z YangFull Text:PDF
GTID:2143360308971125Subject:Forest management
Abstract/Summary:
Forest Landscape, an important part of the Ecosystem, plays an important role in improving the ecological environment. Reasonable configuration of the forest landscape is the basis of sustainable forestry. Based on forest map and survey data of sub-compartment in Huzhong forest farm, Daxingan Mountain, processing and analysis of data were accomplished by using GIS technology, combing with principles and methods of landscape ecology. Secondary landscape element types were divided according to land use and dominant species in this area by using EXCEL and Fragstats. Forest landscape structure and spatial pattern of this farm were systematically analyzed by calculating landscape pattern indices, such as patch numbers, patch area, percentage of area, largest patch index, length of edges, fractal dimensions, patch density, edge density, aggregation, patch uniformity, diversity index, etc; classification system of forest landscape was established and distribution map of landscape was formed. According to contour data, DEM was obtained in the study area. Under the GIS spatial analysis function, the impact of landscape on the distribution and factors related to forest management planning:altitude, slope aspect, slope, slope position, status were overlapped. Distributions of forest landscape were analyzed based on all kinds of site conditions and environmental factors. Combined with ERDAS and Arcview GIS software, the establishment of forest landscape spatial attribute database and site grading thematic map were done. On the basis of evaluation of forest landscape pattern and the site level, the software FLMPS was analyzed in this thesis which is newly developed for virtual stock map of the forest and the planning, and applied this in the research area.The results showed that:the largest proportion of forest landscape is a landscape matrix. The Birch, pine, spruce, aspen and so on. in a more scattered distribution of small patches of forest landscape form heterogeneous patches of forest landscape pattern. Natural forest dominated by various types of landscape elements unevenly distributed between the patches, the overall landscape pattern is a cluster, two landscape classification of forest diversity index was 0.2652, and 0.9027, respectively. The larch have dominate advantages than others, with high fractal dimension, complex shape of patch boundary, more concentrated patches and larger connectivity. Planning was developed through pattern analysis and impact index distribution of forest landscape types on the basis of the main factors to improve forest productivity, so that it can maximize the economic, social and ecological benefits of forest landscape. It is conducive to the optimal allocation, sustainable forestry management, forest landscape restoration planning and development and to provide basis for decision making.
Keywords/Search Tags:Forest Landscape, Landscape Pattern Analysis, GIS, Forest planning
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