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| 承德县人工油松林林下草本植物种间关系研究 | |
| 引用本文： | 张桂娟,张金龙,李淑贤,于新友,周国娜,高宝嘉.承德县人工油松林林下草本植物种间关系研究[J].中国农学通报,2009,25(7):109-113. |
| 作者姓名： | 张桂娟 张金龙 李淑贤 于新友 周国娜 高宝嘉 |
| 作者单位： | 1. 河北农业大学,河北保定,071000 2. 济南工程职业技术学院,济南,250000 3. 中国人民解放军6455工厂,济南,250000 |
| 基金项目： | 河北省重点林业科研项目 |
| 摘 要： | 以承德县人工油松林林下草本植物为研究对象，采用χ2检验、Pearson相关分析和Spearman秩相关分析检验了35个物种595个种对间的关联性，研究结果表明：(1) 在表征种间关联方面，Spearman秩相关分析较χ2检验、Pearson相关分析灵敏度高；(2)3种检验方法的一致结果为:负相关的种对数远多于正相关，而极显著和显著相关的种对数所占比例较低，大多数种间关系松散，独立性相对较强，群落还处于演替之中；(3)种对间的正相关是由于它们的生态适应性相近，是生态位重叠的表现；而种对间的负相关正是生态位分离的结果。 |
| 关 键 词： | 天然绿色棉 天然绿色棉 远缘杂交 定向选育 |
| 收稿时间： | 2008-12-30 |
| 修稿时间： | 2009-02-03 |
Interspecific Relations of Herbage Species under Artificial Pinus tabulaeformis Forests |
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| Zhang Cuijuan,Zhang Jinlong,Li Shuxian,Yu Xinyou,Zhou Guona,Gao Baojia.Interspecific Relations of Herbage Species under Artificial Pinus tabulaeformis Forests[J].Chinese Agricultural Science Bulletin,2009,25(7):109-113. | |
| Authors: | Zhang Cuijuan Zhang Jinlong Li Shuxian Yu Xinyou Zhou Guona Gao Baojia |
| Institution: | Zhang Guijuan, Zhang Jinlong, Li Shuxian, Yu Xinyou, Zhou Guona, Gao Baojia (1.Agriculture University of Hebei , Baoding Hebei 071000; 2.Jinan Engineering Vocational Technical College, Jinan 250000; 3.6455 Factory of Chinese People＇s Liberation Army, Jinan 250000) |
| Abstract: | The herbage species under artificial Pinus tabulaeformis forests in Chengde ciunty were regarded as the main study object in this paper,and the interspecific relations of 595 pairs of species were studies byχ2-test,Pearson’s correlation coefficient and Spearman’s rank correlation coefficient.The results indicate that(1) In showing the associations of the species,Spearman’s rank correlation coefficient test is more sensitive thanχ2-test and Pearson’s correlation coefficient test.(2)The number of negative correlation pairs of species are more than positive correlation; the pr oportion of significant and very significant pairs of species is low;it means that most species are not closely related with each other and independently distributed and the communities are in the phase succession.(3)The positive correlations between species-pairs are the indication of niche overlap and owe to the similar biological adaptability; The negative correlations between species-pairs are the results of niche separation. |
| Keywords: | artificial Pinus tabulaeformis forests herbage species X^2-test Pearson＇s correlation coefficient Spearman＇ s rank correlation coefficient interspecific relations |
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