氮添加对内蒙古退化草地植物群落多样性和生物量的影响
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Effects of nitrogen addition on the plant diversity and biomass of degraded grasslands of Nei Mongol, China
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图1. 研究区域及样地分布图。EDG, 极度退化草地; MDG, 中度退化草地; SDG, 重度退化草地。 |
Fig. 1. Study area and the spatial distribution of study sites. EDG, extremely degraded grassland; MDG, moderately degraded grassland; SDG, severely degraded grassland. |
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