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Studies On Vascular Plants Flora And The Characteristics Of Plants Community For DAshushan Forest Park

Posted on:2013-04-27Degree:MasterType:Thesis
Country:ChinaCandidate:Y M XuFull Text:PDF
GTID:2230330395481774Subject:Botany
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Dashushan Forest Park is the only great mountain around Hefei which lies in the western suburbs of Hefei with an elevation of284metres and a total area of951.11hectares. And it belongs to Dabie Mountains. It has formed a relatively stable plant community. Dshushan Forest Park resident vascular plant species and community structure has not been researched systematically. Vascular plant flora, species composition, floristic geographical distribution and community structure were studied on the basic of field investigation and relevant scientific literature for Dshushan Forest Park, Hefei, Anhui pvovice. Through quadrat survey procedure, the structural characteristics of plant communities of different altitudes and slope in Dshushan Forest Park were studied which to provide theoretical basis for Shushan Forest Park plant origin research, landscape protection and management. The main results were as follows:(1) The vascular plant species in Dashushan Forest Park were quite rich. In a total area of951.11hectares, there are598vascular plant species, which belongs to373genera,133families. These species include15species,13genera,11section of pteridophyte,48species,20genera,7section of gymnosperms,535species,340genera,115section of angiosperm inchuding479species,291genera,100families of dicotyledons and56species,49genera,15families of monocotyledons.(2) The endemic genera,monotypic genera and oligotypic genera are many. There are important endemic genera growing only in our country13in Dashushan Forest Park. They are Cunninghamia, short spike bamboo genus Brachystachyum, Changium, the toroid suppository belongs to Fortunearia etc. And another feature of this flora are certain types of single species (92genera) and species (265genera).such as Liquidambar, Ulmus, Rhus, Platycarya, Zelkova, Celtis etc.(3) There are many artificial cultivation species in Dashushan Forest Park, and the content of flora are more rich diversity. About235species artificial cultivation plants are planted, including many rare and endangered tropical species. This measures not only greatly enriches forest plants and increases content of artificial vegetation area system, but also makes the Dashushan Forest Park become one of conservation important bases of the rare and endangered plants in Hefei, It is also the base for popular science knowledge. After years of introduction and construction, the introduction and cultivation of rare and endangered plants are planted. such as Ginkgo biloba L, Metasequoia glyptostroboides Hu etCheng, Glyptostrobus pensilis Koch you), Pseudolarix amabilis Rehder, of Parakmeria Lotungensis Law etc.(4) The characteristics of the flora belongs to the temperate distribution type to tropical distribution.The floristic elements are complex (seed plants in122subjects are divided into12areal types, seed plants in360genera are divided into14distribution types).In vascular plants of Dashushan Forest Park, the temperate plants (32families and187genera and323species) are dominant families that take a ratio of26.87%in the total families,51.94%in the total generals and55.40%in the total species.And then the Trop.(51families and117genera and170species) occupies41.80%in the total families,32.50%in the total generals and29.16%in the total species.(5)Compared to R/T value of Huangzangyu, Baimajian, Qiyunshan, The R/T value of Dashushan Forest Park is closely similar to the Baimajian.(6)The dominant species of Dashushan Forest Park plant community are Celtis and Liquidambar formosana, Pinus massoniana, Broussonetia papyrifera and Quercus are subdominant species.On the north aspect, trees are high and dense, herbs and interlayer plants are relatively scarce,while on the south the plants are lush,and tree is less.
Keywords/Search Tags:Dashushan Forest Park, plant flora, genera geographical distribution area types, the Characteristics of Plants Community
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