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| The Relationship among Four Typical Desert Plants in Anxi Extra-arid Desert National Nature Reserve in Gansu, China |
| Yuan Jianli1, Zheng Kai1, Wang Liang2 |
1. School of Life Sciences/State Key Laboratory of Grassland and Agro-Ecosystems, Lanzhou University, Lanzhou 730000, China;
2. Anxi Extra-arid Desert National Nature Reserve Service, Anxi 736100, Gansu, China |
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Abstract We investigated size-distance data from four typical plants, Salsola passerina, Sympegma regelii, Reaumuria soongorica, Nitraria sphaerocarpa, in the Anxi Extra-arid Desert National Nature Reserve,Gansu, China. Ten combinations of the four species were studied. Regression analysis on the size-distance data of ten combinations was made to explore the relationship between them. The results showed that there was a positive relationship between the size and distance of the four species, and they competed with each other. Intraspecific competition was more severe than interspecific competition. And there was asymmetry competition between the species. The result suggested that competition affect establishment of plant community in the desert areas to some extent.
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Received: 04 March 2013
Published: 20 May 2014
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2014, Vol. 34 
