Nitraria sphaerocarpa,one of the main psammophytes,grows in patches and is distributed in discontinuous pattern in the arid and semiarid areas of China.In this study,the soil seed bank of Nitraria sphaerocarpa in a desert-oasis marginal zone is lucubrated,and the horizontal and vertical distribution patterns of the seed bank are analyzed.The results show that the seed density of both windward and leeward slopes is closely related to the horizontal distance and the vertical depth of sampling in both May and ...
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