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氮、磷添加对半干旱沙质草地植被养分动态的影响
刘大勇;陈平;范志平;于占源
Effects of N and P fertilization on nutrient dynamics of semi-arid sandy grassland vegetation
LIU Dayong1,2;CHEN Ping3; FAN Zhiping1; YU Zhanyuan1,2
生态学杂志 . 2006, (06): 612 -616 .