[ Objective] This study was to analyze the two hydrochemical factors affecting the distribution of Ceratopteris thalictroides, further to provide basis for its habitat protection and population restoration. [ Method ]...[ Objective] This study was to analyze the two hydrochemical factors affecting the distribution of Ceratopteris thalictroides, further to provide basis for its habitat protection and population restoration. [ Method ] Twenty two hydrochemical parameters of 22 sampling sites in China＇s tropical and subtropical zones were respectively averaged for calculating their variation coefficients, of which the two showing significant differences were used for multiple comparisons and correlation analyses via least significant difference and correlation coefficient. E Result ] The correlation coefficients of all the 22 tested hydrochemical parameters varied hugely, but only pH value and conductivity showed significantly differences in two water body （type A and type B）. Analysis of correlation presented that pH value were positively correlated with conductivity; further the multiple comparisons showed that the significant difference of pH value was higher than that of conductivity. [Conclusion] With regard to the two hydrochemical parameters showing significant differences, pH value influences the distribution of C. thalictroides more.展开更多
采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样...采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样性指数分析显示清水河蕲艾群落丰富度指数(R)、Simpson指数(D)、Shannon-Wiener多样性指数(H′)和Pielou均匀度指数(J)分别为28、0.817、3.397和1.020。人为干扰是影响该野生蕲艾种群恢复更新的重要原因。展开更多
基金Supported by National Natural Science Foundation of China(30370098)~~
文摘[ Objective] This study was to analyze the two hydrochemical factors affecting the distribution of Ceratopteris thalictroides, further to provide basis for its habitat protection and population restoration. [ Method ] Twenty two hydrochemical parameters of 22 sampling sites in China＇s tropical and subtropical zones were respectively averaged for calculating their variation coefficients, of which the two showing significant differences were used for multiple comparisons and correlation analyses via least significant difference and correlation coefficient. E Result ] The correlation coefficients of all the 22 tested hydrochemical parameters varied hugely, but only pH value and conductivity showed significantly differences in two water body （type A and type B）. Analysis of correlation presented that pH value were positively correlated with conductivity; further the multiple comparisons showed that the significant difference of pH value was higher than that of conductivity. [Conclusion] With regard to the two hydrochemical parameters showing significant differences, pH value influences the distribution of C. thalictroides more.
文摘采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样性指数分析显示清水河蕲艾群落丰富度指数(R)、Simpson指数(D)、Shannon-Wiener多样性指数(H′)和Pielou均匀度指数(J)分别为28、0.817、3.397和1.020。人为干扰是影响该野生蕲艾种群恢复更新的重要原因。
