| Three-River-Source National Park is the first national park pilot in the country.It is one of the most concentrated areas of snow leopards in the world.In recent years,due to the intensification of human activities,the Three-River-Source National Park Snow Leopard habitat has been broken and the quality has declined,giving snow leopard species and The protection of the regional environment poses serious challenges.Therefore,the suitability analysis of the snow leopard habitat in Three-River-Source National Park is carried out to assess whether the existing snow leopard distribution area is effectively protected,to provide scientific support for the reproduction and survival of snow leopard,and the management of snow leopard habitat,and to show the unique charm of the natural environment of the area.Biodiversity is of great value.This paper takes Three-River-Source National Park as the research area,based on the monitoring data of geographical conditions in 2017,with the support of the theory and technology of geographic information system and ecological environment protection,the research on the suitability evaluation of snow leopard habitat is based on the existing snow leopard activities.The trace points verify the evaluation results.The main research contents and results are as follows:(1)The evaluation index system of snow leopard habitat suitability was constructed.According to the research results of the scholars on the snow leopard,combined with the current challenges encountered in the survival and reproduction of the snow leopard,the selection is related to the terrain conditions(altitude,slope,aspect,landform type),ecological landscape(vegetation type,fragmentation),and humans.The activities affect the correlation(distance from the road,distance from the human activity area)a total of 8 snow leopard habitat suitability evaluation indicators.The weights were calculated by the combination of tomographic analysis and entropy method,which were 0.050,0.085,0.333,0.018,0.247,0.004,0.047,0.216.(2)Fuzzy comprehensive evaluation of the suitability of the snow leopard habitat.According to the evaluation index system of snow leopard habitat suitability,based on the monitoring data of geographical conditions,the membership function of each evaluation index was established.The fuzzy comprehensive evaluation method was used to construct the snow leopard habitat suitability evaluation model from the microscopic point of view,and the snow leopard habitat was established.Suitability was comprehensively evaluated and verified.The results show that the seven traces of the snow leopard habitat in Three-River-Source National Park are in the appropriate area and suitable area,and the area where the snow leopard is found is also in the suitable area.The evaluation results are consistent with the actual situation.(1)Suggestions for rationalizing the protection of snow leopard habitat are proposed.According to the evaluation results,the potential habitat of Snow Leopard accounts for96.65% of the total area of Three-River-Source National Park.The most suitable area for snow leopard survival is 61.02% of the total area of potential habitat,mainly distributed in the west of the Yangtze River Source Park and the southern part of the Middle East.Most of the most suitable areas in the southern part of the Lancang River Source Park are located in the core conservation area,but a small part is still distributed in the traditional utilization area,which is greatly affected by human activities,and there is still a small area with a high degree of fragmentation in the snow leopard habitat.Therefore,measures to reduce the impact of human activities by increasing the level of protected areas,selecting relevant personnel to conduct on-the-spot investigations to find areas with high fragmentation,and monitoring the environment of suitable areas for snow leopard habitats in real time,in order to provide largescale relatives for snow leopards Complete habitat. |
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