Showing papers in "Guizhou Science in 2004"

Study on the ganodermataceae of china ii

Abstract: This paper summarizes information available in the literature for species assigned to the families Ganodermataceae,lists for each species the synonyms, and eographical Distribution

A study on phallaceae from yunnan, guizhou and guangxi, china

Abstract: 16 species or varieties of Phallaceae are reported from Yunan, Guizhou and Guangxi provinces, including 5 taxa of Dictyophora, 1 Endophallus, 2 Mutinus and 8 Phallus. They occupy 72.7% of the known taxa of these genera from China, which indicates that studies on the fungi in this area are of great importance and the fungi there are very abundant. Detailed descriptions and illustrations are also presented.

Advance in study of common crane and its present statues in china

Abstract: Common crane (Grus grus) has been recorded in Beijing,Tianjin, Shanghai and 23 provinces of China. Over the past 20 years, the range of common crane has been reduced in China.At present, the breeding and summering range of common crane in china is 32°20′-53° N and 76°-135° E, with an altitude of 65-3900m above sea level, in Xinjiang, Gansu, Inner Mongolia, Heilongjiang, Jilin, Ningxia, and Sichuan. Among them, Bayinbuluke Basin of Xinjiang supports the largest breeding and summering population of common crane, about 920-1150, in China.The wintering range of common crane in China is 22°90′-40°30′ N and 87°50′-121°90′ E, with an altitude of 0-3350m above sea level. Provinces with wintering common crane in China include Liaoning, Heibei, Beijing, Tianjing, Hennan, Shandong, Shanxi, Shanxi, Jiangsu, Shanghai, Hubei, Hunan, Jiangxi, Guizhou, Yunnan, Tibet, Sichuan, and Ningxia. In Tibet, Yunnan,Guizhou, Shanxi, Henan, Shangdong, Hebei, and Jiangxi, over a thousand common cranes have been recorded at individual sites for many years.We have estimated that the total wintering population of common cranes in China will not be less than 22401. The population structure of common crane in China is as follows: the adults constituting 60.03% of the total, the sub-adults 22.36%, and the juvenile 17.14%, which shows that the overall population is steadily increasing.

Study on peroxidase isozymes of the germplasm materials of five "kudingcha tea" species in ilex l.

Abstract: Peroxidase isoenzymes offive"Kudingcha tea" species in IlexL.were studied by means of polyacrylamid gel electrophoresis.The inter-specific relationship and genetic differences of the various germplasm materials of the same species wereanalyzed based on the comparison of the isoenzyme bands. The results showed that thecommon characteristic isoenzyme bands of the genuscould be observed in all test materials. Moreover, there was rich polymorphismof the isoenzyme bands, simultaneously. The zymograms of peroxidase isoenzyme of variousgermplasm materials of the same species also showed differences in some degrees. The result of zymogram analysis of peroxidase could be considered as one of the bases for judging the inter-specific relationshipof the various germpalsm materials in IlexL. and as one of the bases for the classificationon species-level. However, more molecular biological and morphological proofs were needed for determining the genetic differences of the various germplasm materials in the same species in IlexL. and for the classification of infra-specific taxa.

A preliminary study on morphology of jaoa

Abstract: The paper studies the morphological structure of Jaoa bullataand Jaoa gathering in mode place or parts of Guizhou. The results shew that the shape of Jaoais near spheroid,dish formor irregular pocket of cisterna and false laminate organize form.The plant is formed by two-layer or three-layer cells.In addition, Jaoahas a slice of forms circumjacent chromatophore,and thesurface of outside layer cell has or does not have the epidermis the hair.Mature zoospore produces two roots or four roots flagella in agamogensis period. Jaoaceae belong to Ulotrichineae, according to the studies the morphological structure of Jaoa.

Lca quantitative assessment model of non-ferrous metals

Abstract: This paper puts forward an LCA (Life-Cycle Assessment) quantitative assessment method for non-ferrous metal materials--comprehensive percentage coefficient method. Based on the elements such as the environmental characteristics, the actual extracting metallurgical process, social functions and biological effects of the metallic elements, this method defines the quantitative calculating principles of environmental load of pure metals and figures out the relative environmental load, subsequently calculating the percentage coefficients of environment load of the metal materials. It calculates the environmental loading quantitative value of the metal materials again based on the assumed model. This model is reliable in mathematical principle and it is easy to use the formulae. It is known from the LCA example quantitative assessment of the two different materials of ZL110 and ZA8 that this method is an advanced one which calculate objectively the environmental load of the non-ferrous metals at present.

Preliminary study of polypores diversity from provinces of yunnan, guizhou and guangxi , china

Abstract: The polypores diversity in provinces of Yunnan, Guizhou and Guangxi , including 259 known species under 72 genera, is preliminarily analysed in this paper. The dominant genera are Phellinum, Polyporu, and Trametes. The authors divided these genera into 5 geographical elements, i.e. Cosmopolitan element (66.7%), Pantropical element (9.7%), Tropical Asian-Tropical American element (1.4%), Temperate element (20.8%) and Endemic element to China (1.4%). The species can be divided into 7 geographical elements, i.e. Cosmopolitan element (27.8%), Tropical element (34.0%), Tropical American element (10.4%), Tropical Asian element (10.8%), Temperate element (13.9%), East Asian element (0.8%) and Endemic element to China (2.3%). Of these 7 geographical elements, tropical element is the main charcteristics in provinces of Yunnan, Guizhou and Guangxi .