黑河流域中游水陆交错带湿地芦苇种群动态变化特征

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Abstract

Phragmites australis population ecology characteristics and the surface inundated depth of the natural state land-lake ecotone wetland of Heihe River Basin were investigated,and the coverage,height,density and ground biomass of P.australis population were analyzed.The results are as follows.The growth process of land-lake ecotone wetland of P.australis population had obvious seasonal rule.P.australis population coverage showed a trend of increasing first but decreasing later with seasons,with its peak of 99.7% in late August.P.australis population height increased with the seasons.P.australis population density had a tendency of increasing, decreasing and increasing with the seasons.P.australis population ground biomass increased rapidly during May to June,and during July to August,but increased slowly during June to July,and it peaked at August,after when it decreased gradually.The flooded depth had a significant effect on P.australis population ecological characteristics.Coverage,height,density and biomass rates of population were significantly related with the change flooded depth(p<0.05).

Key words： The Heihe River Basin land-lake ecotone Phragmites australis population ecological characteristics dynamic changes

Received: 25 October 2012

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	Articles by authors
	ZHANG Hong-bin
	MENG Hao-jun
	LIU Xian-de
	ZHANG Fen-qin
	ZHAO Wei-jun

Cite this article:

ZHANG Hong-bin,MENG Hao-jun,LIU Xian-de, et al. Dynamics changes characteristics of Phragmites australis population in land-lake ecotone wetland in the Heihe River Basin[J]. , 2012, 31(5): 500-506.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2012/V31/I5/500

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