%0 Journal Article %A LI Feng-Ri %A LI Zhi-San %T Study on Interspecific Associations of Natural Nitraria tangtorum Population and Its Main Companion Species in Ulanbuh Desert %D 2008 %R 10.7525/j.issn.1673-5102.2008.01.021 %J Bulletin of Botanical Research %P 98-103 %V 28 %N 1 %X A series of techniques including the variance analysis (VR), χ2-test, the association co-efficient(AC), the percentage of co-ocurrenc (PC) consulting the association indices(OIDJJI)were used together with a 2×2 contingency table to analyze the interspecific associations of natural Nitraria tangtorum population and its main companion species in Ulanbuh Desert Inner Mongolia. Result: In the natural Nitraria tangtorum population,the association of 8 dominant species showed no correlation. By the calculation results, in the all 28 species-pairs, there are 15 species-pairs which revealed positive association, and 13 species-pairs revealed negative association. Most of the species-pairs revealed little significant association except Nitraria tangtorumArtemisia ordosica. Nitraria tangtorumArtemisia ordosica revealed significant negative association.. Nitraria tangtorum-herbage and other herbaceous species-pairs distributions trend to be independent. The result is very important to construct steady desert plant community, reconstruct desert plant community and regulate ecological pattern in theory. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2008.01.021