Study on Some Features of Artemisia ordosica Community at The Different Successional Stages
Wang Qingsuo, Dong Xuejun, Chen Xudong, Yang Baozhen
Chin J Plan Ecolo. 1997, 21 (6):
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Artemisia ordosica community in Maowusu sandland of China showed different features at the successional stages. The stage of shifting sandland was of loose soil, few plants,the lowest relative humidity,drastically changing temperature,and of vigorous growth of A. ordosica with its high leaf water content, water potential and transpiration rate. The stage of fixing sand-land was of more plants,the highest plant coverage, biomass and loosing water,the highest relative humidity, and the lowest soil water. The stage of fixed sandland with A. ordosica+ Stipa bungeana and crust of mosses and algae was of the most plants,the highest soil water content,and of tight soil preventing the growth of A. ordosica with the lowest leaf water content and water potential,and with the highest leaf transpiration rate. The successional series of A. ordosica community were: shifting sandland, A. ordosica community of fixed sandland, A. ordosica+ S. bungeana community,and S. bungeana community.