Yuntaishan Community Characteristics And Landscape Transformation Research

By utilizing the remote sensing data and other remote sensing information,according to forest ecology, silviculture, forest planning, geologycal disciplinarian andremote sensing vision interpretation principle, the forest vegetation characteristic ofYuntai Mountain was estimated. Forest vegetation regenerate status of Yuntai Mountainwas evaluated by TM image interpretation. Remote sensing method of fitting to mountainsite survey was explored. It's of far reaching importance to obtain site information offorest resource quickly, high quality and effective, forecast productivity scientifically,matching species with the site, construct, maintain and enhance forest communityproductivity.This article adopts the standard investigation method to analyze and research theform, structure, distribution characteristic, community's regeneration and the productivity,etc. of Yuntai Mountain forest community. It has showed that Yuntai Mountain forestcommunity has the characteristics as following:(1) Abundant forming of species, butdominant tree species or dominant species group is not obvious. Among the 18 modelplots, the highest importance value is 48.27, the relatively importance value is 16.09%.The number of species which importance value over 30 is only 16. (2)Various kinds ofspecies combination, low probability of reappearing Community type is differentiationand multiplicity. Specific composition similarity of each community type plot is low.Average similarity is 0.364. In the same community type, the highest similarity of twoplots is 0.727. (3)Few constant tree species, that means the low distribution equality oftree species in various kinds of sample plot.Combining remote sensing interpretation technique and complement survey, theresult shows that total land area of Yuntai Mountain is 250145 Mu. It contains: forestusing 235429 Mu, non forest using 14716 Mu. The percentage of forest cover is 73.9%.In the forest using, it contains forest land 180924 Mu, open forest land 6485 Mu, shrubland 3931 Mu, un-mature forest land 20322 Mu, nursery land 715 Mu, non-stocked land23052 Mu. This survey utilize America land resource satellite special X Y plotter, throngimage enhancement, choose 4 5 3 wave band false color amalgamation and millimeter netoverlay, generate TM satellite image contrast to 1:50000 topographic map. And then dovisual interpretation on the basis of TM satellite image, combining with field study. Theresult shows that Yuntai Mountain has several problems in the aspect of forest landscape:(1) Quality of the forest resource is not high, species of trees is singleness, forest form is break up, defend benefit and view value is low. It couldn't improve ecologicalenvironment completely and meet the need of forest tourism. (2)There is too manyquarries, moreover, it distribute along the construction access road, which affectlandscape. (3) The harm of forest pest is in face of baptism. (4) Resource developmentand protection is inadequate.According to forest community characteristic distributing pattern and forestresources landscape problem, consulting other experience of similar program, this articlecomprehensive analysis society economy, ecological environment, physiographiccondition, application ecological economy, principium of program, and do the research offorest landscape reconstruct and protection technique. It contains artificial formationtechnique, closing the land for reforestation technique, old tree protection technique,vegetation regenerate in quarry et al. The result shows that: (1) after the reconstruct,vegetation covers degree of degenerate fell ecosystem and biomass of below forestincrease a great deal, especially in the area of serious water and soil loss, increase60-75%. Soil organic matter increases 0.5-1.2%, summer maximum air temperature in theforest is 4℃lower than out of forest, relative humidity increase, soil temperatureamplitude diminishes. (2) Through closing the land for reforestation, the area of forestland increase notability. In the past five years, percentage of forest cover increase 12.5%.The study of plant community architecture and landscape reconstruction show that,establish species complement is important to reconstruct forest, artificial formation andclosing the land for reforestation is benefit to improve forest landscape and soil structure.It should be avoid artificial destroy, especially in the area of special district plat. It shouldalso be making effective plan, managing forest by law, increase protection of forestresources.