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Plant communities on riversides in northern Guangdong Province were investigated with all-survey method, where a kind of native grasshopper Fruhstorferiola tonkinensis Will. broke out severely. 108 plant species belonging to 43 families were identified, and some plant indexes in those plant communities including their name, average height, congregation index, total coverage rate, phenological phase and biod were noted. In addition, plant comparability, plant abundance, quantity character and attribute symbol of dominant species in plant communities on riversides were studied. The results showed that the arrangement and distribution of vegetations on riversides offered a favorable habitat for F. tonkinensis. Moreover, the density of first instar nymphs of F. tonkinensis in plant communities was calculated. The results of partial correlation analysis (PCA) about the relationship between plant communities and occurrence of F. tonkinensis showed that Pterocarya stenoptera C. DC. was the most palatable plant to F. tonkinensis, presenting a very significantly positive correlation between coverage rate of P. stenoptera and occurrence of F. tonkinensis. The partial correlation coefficient (PCC) was 0.856072 (F=32.92012, P=0.0001). Bambusa flexuosa was a non-preferable plant of F. tonkinensis, presenting a significantly negative correlation between them, and the partial correlation coefficient was ?0.607920 (F=0.16173, P=0.0211). Those results would help us to propose some approaches for the ecology control of F. tonkinensis on riversides in northern Guangdong Province. 相似文献
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Relationship of occurrence of Fruhstorferiola tonkinensis Will. and plant communities on riversides in northern Guangdong Province, China 下载免费PDF全文
Plant communities on riversides in northern Guangdong Province were investigated with all-survey method, where a kind of native grasshopper Fruhstorferiola tonkinensis Will. broke out severely. 108 plant species belonging to 43 families were identified, and some plant indexes in those plant communities including their name, average height, congregation index, total coverage rate, phenological phase and biod were noted. In addition, plant comparability, plant abundance, quantity character and attribute symbol of dominant species in plant communities on riversides were studied. The results showed that the arrangement and distribution of vegetations on riversides offered a favorable habitat for F. tonkinensis. Moreover, the density of first instar nymphs of F. tonkinensis in plant communities was calculated. The results of partial correlation analysis (PCA) about the relationship between plant communities and occurrence of F. tonkinensis showed that Pterocarya stenoptera C. DC. was the most palatable plant to F. tonkinensis, presenting a very significantly positive correlation between coverage rate of P. stenoptera and occurrence of F. tonkinensis. The partial correlation coefficient (PCC) was 0.856072 (F=32.92012, P=0.0001). Bambusa flexuosa was a non-preferable plant of F. tonkinensis, presenting a significantly negative correlation between them, and the partial correlation coefficient was −0.607920 (F=0.16173, P=0.0211). Those results would help us to propose some approaches for the ecology control of F. tonkinensis on riversides in northern Guangdong Province. 相似文献
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A simple, rapid and reliable high-performance capillary electrophoresis method has been developed to determine quantitatively the alkaloid content of Sophora tonkinensis, a Chinese herb commonly known as shan-dou-gen. A total of seven quinolizidine alkaloids (cytisine, sophocarpine, matrine, lehmannine, sophoranol, oxymatrine and oxysophocarpine) could be readily separated within 15 min. The running buffer was 50 mM phosphate buffer (pH 2.5) containing 1% hydroxypropyl-beta-cyclodextrin and 3.3% isopropanol in water. The applied voltage was 25 kV, the capillary temperature was 25 degrees C, the detection wavelength was 200 nm and scopolamine butylbromide was used as internal standard. The method was used to analyse the chemical constituents of two commercial alternatives to shan-dou-gen. The alkaloid constituents of authentic shan-dou-gen gave a specific HPCE electropherogram that could be used to distinguish the drug from potential substitutes. Furthermore, the content of oxymatrine and the total content of the seven quinolizidine alkaloids could be used as quantitative markers in order to assess the quality of S. tonkinensis. 相似文献
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越北腹露蝗若虫空间格局的地学统计学分析 总被引:10,自引:0,他引:10
应用地学统计学研究广东北部桑田中越北腹露蝗(Fruhstorferiola tonkinensis Will)1~5龄若虫的空间格局动态.结果表明:越北腹露蝗1~5龄若虫种群变异曲线函数均为球状模型,表现为聚集分布,但各龄若虫的空间依赖范围分别为1.973、1.968、2.169、2.302和4.307 m.利用Kriging插值法由地学统计学软件Surfer 8.0产生的各龄若虫等值线图清晰地反映了各龄若虫的空间位置, 表明越北腹露蝗有别于其它一些蝗虫,其低龄若虫呈聚居型,高龄若虫呈散居型分布. 相似文献
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Huang Xie-Cai 《植物分类学报:英文版》1984,22(6):486-489
Guangdougen is generally known as Shandougen. It is a traditional
Chinese drug. It can be used as antipyretic, antidote, anodyne or antiinflammation agent. In recent years, some compounds (alkaloids, flavones and a new glycoside) such
as cytisine, matrine, oxymatrine, pterocarpin and isoprenyl chalcone, have been isolated from roots of Guangdougen for medicinal purposes. They give effects of antiarrhythmia, anticancer or antiulcer.
A recent investigation reveals that the Guangdougen comes from Sophora tonkinensis Gagnep. (syn. Sophora subprostrata Chun et T. Chen) and Sophora tonkinensis
Gagnep. var. polyphylla S. Z. Huang et Z. C. Zhou, var. nov.
Gnangdougen is geographically restricted to SE. and NW. Guangxi and SE. Guizhou and Yunnan (103-109°E, 22-26°N). They have an ecological preference for limestone regions, very commonly growing in mountains of 500-800 m alt. 相似文献
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<正> 广西生长的大戟科植物,国内、外学者曾予研究;作者编写中国植物志过程,查阅广西植物研究所植物标本室(IGB)和广西中医药研究所植物标本室(GXMI)收藏的近年在广西石灰岩地区采集的一批标本,其中一些种类,对广西植物区系的探讨,具有一定意义。现报道广西石灰岩山地生长的3个我国新纪录种。 相似文献
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