Systematic Study On The Taxonomy Of Chenopodiaceae From Xinjiang

The Chenopodiaceae is one big family of the angiosperm, which has the higherusing frequency. In the temperate zone of world, the subtropics and cold temperatezone has distribution trail of chenopodiaceae plants. Majority of the family is annualor perennial herbs, rare shrubs or small trees. There is38genus and185species inChina. Xinjiang has36genera of Chenopodiaceae, accounting for95%of the totalgenus of Chenopodiaceae, more than160species, accounting for86%of China, iswidely distributed in the Xinjiang wilderness, the semi-desert and saline and alkaliland, easily formed communities in the plain area. Because the Chenopodiaceae hassalt tolerance, drought, alkali-resistant, cold-resistant characteristics, Salicornia L.,Suaeda Forsk.,which belongs to halophytes and the alkali tolerant plants includingSalsola L.,besides the sand fixing plants such as Haloxylon Bge. are not only plays animportant role in salinized land improvement, wind protection and sand fixation,formation of desert vegetation in Xinjiang. Chenopodiaceae often provideconstructive desert species which would improve the ecological environment ofXinjiang and mean while have great utilization potential.At present, Chinese scholars conducted systematic research to the cruciferae, theeuphorbia, the scanty race and so on, with great success. The XinjiangChenopodiaceae plants is distributed widely, at present, the Xinjiang Chenopodiaceaeplant classification system is uncertain, chaotic. There are quite a lot of controversyon the taxonomy of Salsola L., For example, domestic and foreign scholars standdifferent points about attribution of Climacoptera. But the system classification aspectresearch related to Chenopodiaceae plant is not yet reported, the XinjiangChenopodiaceae plant’s system classification research had not reported too. Therefore,determine the phylogeny position of Chenopodiaceae system and the division offamily and generic has practical and scientific significance.In this paper through the identification into the Xinjiang University resourcesand environmental science institute plant specimen room extant chenopodiaceae plant specimen, through field investigation, the gathering specimen, the literature review,attempts to verify the type and the geographic distribution of XinjiangChenopodiaceae plants. Morphology, quantity ecology method used to conduct theresearch to the Xinjiang Chenopodiaceae plant’s system classification in the attempt topromulgate the Xinjiang Chenopodiaceae plants evolution rules, and based on thesystematic classification data which proposed by several plant taxonomic schools,confirmed the position of the system classification of chenopodiaceae,explained thegenetic relationship of its genera. And attempt to analyze species relationship ofSolsola by the case of numerical taxonomy. Main research contents and results wereas follows:1. It is confirmed that Xinjiang has36genera and150kinds of10variants ofChenopodiaceae, based on a variant of the morphological characteristics, habitat,geographic distribution and reprogrammed Xinjiang Chenopodiaceae based on theoriginal the Xinjiang higher plants retrieval table;2. Because the Chenopodiaceae plant system classification status is not clear,grouping is chaotic, according to the individual kind of shape characteristic inpredecessor’s research foundation to confirm the system classification status and givesa group name;3.This study Conducted to classify the quantity of the Xinjiang Chenopodiaceaeplant, explained the relationship between the section in each and every case provideda basis for further research on system evolution;4.Analyze the species relationship of Salsola from numerical study on Salsola.The results show that, Climacoptera differs from other types on some morphologicalcharacters,and points out obviously from others on the dendrogram. So, give asuggestion that,classified Climacoptera in species of Climacoptera Botsch.;5. Xinjiang Chenopodiaceae plant resources are rich, majority of them areconstructive species who has the role of wind protection and sand fixation, they playsthe vital role in Xinjiang’s ecological environment, is narrated the Chenopodiaceaeplant’s development and utilization prospect and related questions.In this paper,36genus were chosen based on the Chenopodiaceae plant’s morphology with26shapes which is carries on the Q cluster and the R clusterseparately as the taxonomical unit. The structure indicated, cluster result withchenopodiaceae plant’s traditional classification result is consistent. The shape Rcluster result indicated, but the flowering season, the fruit time and so on8shapes theovary shape and so on several shapes are not very obviously obvious in the classifiedfunction in the function. Therefore, in the classification of the shape is very important,it doesn’t mean more shapes result more credibility, it has provided reference forfurther study the Chenopodiaceae plant classification and the confirmationinter-species relationship.