| This paper as the research object of Changbai Mountain Nature Reserve, based on field survey and in 3S technical support, established the wetland classification system for Changbai Mountain Nature Reserve, explored the wetland types and distribution in Changbai Mountain Nature Reserve features.As important natural resources, Changbai Mountain Nature Reserve wetlands has played an extremely important role to maintain the ecological balance, conservation of biological diversity, promote social and economic development in the northeast region. In recent years, with the development of wetland tourism resources in Changbai Mountain, wetland eco-environment quality is deteriorating trend. wetlands Survey in Changbai Mountain area is currently largely confined to localized wetlands distribution, development and utilization of the status quo of Changbai Mountain area, it don't has enough understanding of lacking relevant investigations and statistics.For this reason, a comprehensive survey of wetland resources in Changbai Mountain Nature Reserve, explored its spatial characteristics, it has great theoretical significance and practical significance for formulation of scientific wetland use and protection strategies to achieve the sustainable development of wetland resources in Changbai Mountain Nature Reserve.this study combining investigation and 3S technology, use of remote sensing images for the Institute in October 2008 in Changbai Mountain area ALOS images, based on the series of field trips, interpretation of ALOS images obtained in the study area vegetation data, and then in accordance with wetlands of study area, the wetland system is divided into two systems:Natural wetlands and artificial wetlands; and further in accordance with the hydrological characteristics of wetlands to natural wetlands is divided into four subsystems. Eventually to the wetlands were divided into 17 types.Plot the wetlands map distribution in Changbai Mountain Nature Reserve and shows the distribution of various wetland types.Forest Wetlands can't use traditional methods to obtain, this study mainly through field investigation to obtain information., according to satellite images, topographic maps, Terrain and Forest Instruction Map, natural conditions in Changbai Mountain Nature Reserve and the experience of experts in Changbai Mountain Nature Reserve Management Committee, design inspection route, select the forest survey of wetlands in the region and then use the GPS instrument to locate the regional study record of site wetlands, and to determine the wetland types.Based on the findings, the spatial distribution of wetlands in Changbai Mountain Nature Reserve has the overall dispersion, the relative concentration of various types of characteristics of the distribution of wetlands influenced by the landform, wetlands, mainly in the vast lowlands, rivers, valleys area, grass Austin wetlands are widespread, it often occurs in the mountains and regular diving low-lying areas, as well as lakes and rivers near the two sides.In the final analysis the level of the distribution of wetland areas and vertical distribution In Changbai Mountain Nature Reserve. North Slope gradient smaller, easier to stagnant water, marsh wetlands, the distribution of more; the western slope of the overall slope of the 7°below, there are more broad distribution of rivers, such as the Jin Jiang river, Songjianghe river and so on, the wetlands distribution is less; the southern slope of the terrain fluctuated considerably, and many seasonal rivers sparse network of waterways, local area alpine wetlands are more gentle. Marsh wetlands in the mountain on the vertical distribution of the more obvious features of the mountain vegetation, strongly influenced by the terrain, swamps in the mountains on the distribution of types can be divided into three zones:deciduous broad-leaved forest and coniferous forest zone flat, poor drainage swamp type much large area. A variety of forest-swamp-based; mountain coniferous forest, volcanic cones, is not conducive to marsh growth, only in the volcanic barrier lake and the local swamp low-lying on the ground with small distribution. Erman's birch forest and alpine tundra zone. Steep volcanic cone, wind, no marsh distribution of peat soils has the phenomenon of surface-free water, soil, no latent phenomenon Rivers and wetlands in Changbai Mountain as the center radial distribution of the volcanic cone, with the lower elevation gradient slowed and widened.Alpine wetlands are unique to this area of wetlands is distributed only within the framework of the 1500-1800m mountain basin or into the gentle slope of mountain. Key words:Changbai Mountain Nature reserve, ALOS,3S technologie, wetland classification... |
