Comparison of Different Measurements Applied to Oasis-Desert Ecotone

Abstract

Abstract: In this paper,plant niche breadth and niche overlap were analyzed on oasis-desert ecotone in Fukang of Xinjiang,with 7 measurements.The results reveal that:the methods for measuring niche breadth such as Simpson,Shannon-Wiener and Levins formula were all fit to plants on oasis-desert ecotone,while Simpson,Shannon Wiener were better than Levins; niche overlap formula of Levins,Wang-gang,Pianka were all suitable to reflect niche structure,But Wang-gang's method was more rational than the others.The minimal spanning tree and polar ordination proved it fully.

Key words: eutrophic water, microcystins, ammonia, nitrite, species sensitivity distribution, aquatic ecological risk.

CLC Number:

S718.54⁺2

Zhang Linjing, Yue Ming, Zhao Guifang, Zhang Yuandong, Gu Fengxue, Pan Xiaoling. Comparison of Different Measurements Applied to Oasis-Desert Ecotone[J]. cje, 2002, (4): 71-75.

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Comparison of Different Measurements Applied to Oasis-Desert Ecotone

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