| Plant community is an important component of coastal landscape.In this study,ShenZhen XChong coastal tourism resort is selected as the research site.As a coastal tourism resort with relatively good ecological protection,XiChong has not been over-developed and is a very worthy area to be studied.This research uses the method of plant ecology research,through to the XiChong plant species composition,statistics and analysis on the comparison to all levels of plant diversity,plant community landscape analysis using analytic hierarchy process(AHP)to comprehensive evaluation,the artificial plant community of natural plant communities and nearly detailed study and analysis of natural botanical community,the summary in XiChong regional advantages and problems of the vegetation environment,recommend the corresponding solution,to protect the regional vegetation ecosystem to provide certain reference basis.The main results of this study are as follows:1.This study for Xichong seaside resort 16 representative plant community based data has carried on the detailed investigation,through statistics and analysis,obtained the specific situation of the plant species,in the scope of the investigation found that Xichong area a total of 313 species,belong to 99 families,238 genera,including plant species contained more are: Leguminosae(14 genera and 22species)? Euphorbiaceae(14 genera 22 species)? Moraceae(1genera 9species)Rutaceae(7 genera and 9)?Myrtaceae(3 genera 8 species)? Lauraceae(3 genera and 9)there appear more plant species Schefflera octophylla ? Litchi chinensis ?Psychotria rubra ? Mallotus paniculatus ? Blechnum orientale ? Ilex asprella var.asprella.2.Through the calculated data,statistics for each community indices such as Different types of height coverage,chest diameter and other indicators,analyzes on the advantages of the each community at all levels in the plant species,all levels of each population average height diameter at breast height and coverage of plant such as comprehensive index to calculate,it can be seen that the density of various types of plant communities of plant sizes and natural communities in coverage higher than parts of the plant height and tree diameter at breast height of disturbance of the community,plantation of plant species is less,the advantage of the dominant species have high,results in a lack of plant level,in the community affect the landscapeeffect.3.By comparing the difference between the various community species diversity at every level,the diversity of natural communities are higher than that of artificial community,reflect the intervention of the negative effects on the natural plant richness also to a certain extent,affected by human intervention and smaller obviously affected by habitat plants will in body reveals the difference of different types,and each level.4.Microclimate factors were measured in 10 communities in XiChong area and the correlation analysis between community structure characteristics and microclimate factors was studied.Green space can reduce the temperature inside the community to a certain extent,increase the relative humidity in the air inside the community,and reduce the wind speed inside the community.The general variation trend of plant community effect value in each community was the edge of forest.There was a significant positive correlation between light intensity and temperature;Relative humidity is negatively correlated with light intensity and air temperature;There was a significant positive correlation between air temperature and wind speed.The temperature was positively correlated with the total average plant height and the total average crown amplitude.The better the community structure is,the richer the community layers are,and the more reasonable the combination of tree layer,shrub layer,herb layer and interlayer plants is,the more obvious the cooling,humidification and wind resistance effect is..5.The artificial community is also the community with the greatest human interference.For example,the color in the community 4 is relatively single,the ornamental value is poor,the environmental coordination is poor,and the landscape level richness of the community is single.There were few flowering plants in semi-natural community,such asMurraya exotica and Antidesma bunius.Community9 has less color,but because one side of the community is fragrant,the landscape effect is better,but the native nature of the plants is poor,and the diversity of ornamental characteristics is poor.Close to the natural community has a certain degree of seasonal change of the environment coordination ability is strong,the community of plants in the health condition is good.Based on the analysis of the plants in the area of XiChong coastal tourism resort,the species of some regional plants are obtained,and some constructive principles and Suggestions are put forward on the optimization and transformation of plants in thearea,which provides some theoretical reference for the protection of the ecological environment and the construction of natural landscape in the area?... |
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