Research On The Scientific Value And Tourism Display Of Yunnan Canyon Landscape

Canyon is an important geomorphic form generated when crust rises and river downs work in harmony with each other.It records the evolution and change of the earth's surface.It involves rocks,hydrology,biology,fault structures,geological functions,and other subjects Principles and scientific research are of great value.At the same time,as a tourist resource,the canyon played an important role in spreading scientific culture and showing scientific connotation.The number of canyons in Yunnan Province is huge and is limited by research methods and methods.The existing research is mainly on the work of single canyons and even sections.The distribution and division of canyons and canyon landscapes in Yunnan have not yet been determined,which is difficult to be a provincial and large-scale canyon.Resources development and utilization provide decision-making reference.Nowadays,with the development of GIS technology and the convenient acquisition of free remote sensing data,it provides a feasible and fast means for obtaining large-scale data and batch processing data.This article uses Arcgis and Google earth software to extract the canyon data of the entire Yunnan Province,and explores the distribution characteristics and problems of canyons in Yunnan Province from a macro perspective.Based on this,the canyon landscapes of scientific value are selected and the corresponding canyon landscapes are selected.Explore the display of scientific value.Finally came to the following conclusions:(1)Based on the narrative definition of the canyon and the research data,the quantitative index for extracting the canyon is determined: the slope condition of the canyon is greater than 25 °;the cutting depth of the canyon should be greater than 30 meters;the length of the canyon depends on the deep and steep characteristics of the canyon Yes or no.The slope map and cutting depth map should be superimposed for extraction during extraction.Combined with the existing canyon width data and information in Yunnan Province,it is determined that the width of the valley bottom does not exceed 2 kilometers.Extract the canyon vector data according to the above four conditions.(2)A total of 49036 canyons of Yunnan Gorge were extracted.Its characteristics are that there are more west and east and less north and south,and the distribution trend is basically the same as the river.The east is mainly north-south and the west is mainly north-west.The average length of the canyon is 2.5km and the longest is 300km;more than half of the canyons are distributed in the altitude range of 1000-2000 meters;75% of the canyons are shallow cut canyons and the slope is between 25° and 35°..(3)Based on the geological environmental conditions,the canyon is divided into different landscape units combine with the combination of geodetic structure,canyon clustering characteristics,cutting depth and landform differences,and summarizes the characteristics of each landscape.It consists of three first-level subdivisions: the Yunnan Plateau Canyon Area,the Alpine and Extreme Alpine Canyon Area in the northern section of the Hengduan Mountain Range,and the Low Mountain and Middle Mountain Canyon Area in the southern section of the Hengduan Mountain Range.10 secondary zones: Central Yunnan Red Bed Canyon Area,Central Yunnan Lake Basin Canyon Area,Northeast Yunnan Alpine Canyon Area,East Yunnan Karst Plateau Canyon Area,Nanpan River Basin Canyon Area,Southeast Yunnan Karst Low Mountain Canyon Area,Western Yunnan Mid-low mountain wide valley area,mid-low mountain canyon area in southwestern Yunnan,Wuliangshan original mountain canyon area and Ailao mountain mid-mountain canyon area.Four third-level zones: the light and medium-cutting canyon area in the middle section of the Jinsha River,the Lizhong Rivercutting canyon area in the north,the alpine mid-deep cutting canyon area in the north and the light-cutting canyon area in the southern depression.(4)There is still much room for the development of the scientific value of the Yunnan Canyon landscape.At the same time,in the process of development,there are problems such as inaccurate positioning of tourism brand construction,lack of planning,insufficient marketing methods,single display methods,and lack of cultural connotation.(5)Analyze the distribution of canyons in Yunnan Province by analyzing the relationship between the distribution of the canyon and the terrain,geomorphology,fault structure,rocks,and water systems: The canyons are concentrated in the western and northern parts of Yunnan,at 1000-2000 meters above sea level In this article,the elevation level of the canyon distribution refers to the elevation of the valley top distribution,the same below.)The distribution range is the widest,and the distribution ratio of canyons above 5000 meters accounts for only 0.01%.The distribution of canyons in different tectonic units is different.It is distributed in a circle,and some are distributed along the junction of structural units.The distribution of the canyon is basically consistent with the fault zone and the river.The distribution rocks are mainly sedimentary rocks such as sandstone,limestone,dolomite,mudstone,and local basalt.(6)The scientific value of canyon landscape includes scientific value of natural landscape and scientific value of human landscape.It is mainly reflected in the following aspects:(1)some canyons are typical evidence of the uplift of the Yunnan-Guizhou Plateau;(2)the morphology,structural relics,and fossils and biological relics contained inside the canyons show unique and complex tectonic movements and geological environment evolution(3)Provide the “channel-blocking” function for species migration and human activities,promote human cultural exchanges,preserve the traditional nature of culture,and prevent the spread of infectious diseases;(4)form the diversity and biological diversity of Yunnan 's geological landscape The key geographical unit of sexuality and cultural diversity;(5)has preserved many precious regional environmental evolution and human activity relics;(6)has also kept many rare tourism geological resources.(7)Based on several criteria of the scientific value,cultural connotation,ethnic customs,spatial agglomeration,and location conditions of the canyon landscape,the canyon landscape of Yunnan was selected,and eight canyon landscape areas that meet the requirements were selected,namely Guanhe Canyon Landscape Area,Cattle Canyon landscape area of the Lanjiang fault zone,Canyon landscape area of the PuduheXiaojiang fault zone,Yongsheng-Dayao red layer canyon landscape area,Nanpanjiang canyon landscape area,"Three Rivers Parallel" canyon landscape area,Nantinghe fault canyon Scenic area and Yuanjiang Canyon Scenic Area.The "three rivers co-current" canyon landscape area and Xiaojiang-Puduhe fault landscape area are suitable for the establishment of a geological museum,and the Guanhe Canyon landscape and Niulanjiang canyon landscape area are suitable for the establishment of a science popular movie theater,Yongsheng-Dayao red layer canyon landscape area,and Nanpan River Canyon Scenic Area is more suitable for the construction of science and culture HOBBY museums,Nanting River Canyon Scenic Area and Yuanjiang Canyon Scenic Area.The two ethnic and historically rich landscape areas are suitable for hosting ethnic festivals,cultural assemblies and seminars,and re-traveling the ancient Tea Horse Road And other activities.(8)In the process of displaying the scientific value of the canyon landscape,it is necessary to adhere to the construction of ecological civilization,establish a model of eco-tourism,and promote the harmonious coexistence of man and nature;mainly display the scientific value and scientific connotation of the canyon landscape,highlight the regional characteristics,and avoid plagiarism and similarities.Environmental pollution and waste of resources;Attention to the combination with surrounding scenic spots and tourism resources to enrich the types and value of tourism in the scenic spots;Attach importance to the construction of tourist facilities and improve the tourist experience of tourists;Safety measures and fire protection facilities in canyon scenic spots must be fully equipped,and attention must be paid to preventing geological conditions such as landslides Disasters guarantee the safety of tourists.